Patent Grant
11217871
The present technology relates to a distributor and a synthesizer, and particularly, to a distributor and a synthesizer that can achieve downsizing and low loss.
In order to configure a multi-distribution Wilkinson distributor on a substrate, a method of connecting two-distributor in a tournament form has been conventionally used. However, if the distribution number is large, the total transmission line length becomes long, leading to an increase in size and an increase in loss.
Therefore, Patent Document 1 has proposed that a basic Wilkinson multi-distributor is configured by wiring using a VIA on a multilayer substrate. With this proposal, four divisions can be achieved in three layers and six divisions in five layers, so that the wiring length can be made shorter than a distributor achieved by connecting a two-distribution circuit on a substrate in a tournament system.
By the way, in the fifth generation mobile communication (5G), a high frequency band of 20 GHz or more is assumed. In the case of such a high frequency band, according to the technology disclosed in Patent Document 1, the number of stacked layers increases as the distribution number increases, and the length of the VIA serving as a wiring connecting isolation resistors becomes longer. As a result, the wavelength cannot be ignored at the high frequency assumed in 5G, and the necessary isolation characteristics may not be satisfied.
The present technology has been made in view of such circumstances, and can achieve downsizing and low loss.
A distributor of an aspect of the present technology is formed on a substrate and includes: an input branch unit connected to an external transmission line on an input side; a distribution line that distributes a path from the input branch unit into n; an output branch unit that is connected to an output side of the distribution line and divides n-distributed paths into an internal side and the external transmission line on the output side; a coupling terminal that couples the n-distributed paths on the internal side; and a phase adjustment unit that is arranged between the output branch unit and the coupling terminal so as to be connected in series with a resistor, and adjusts a phase, in which a phase rotation amount from the input branch unit to the output branch unit of each of the re-distributed paths is π/2 [rad], and a phase rotation amount from the output branch unit to the coupling terminal is π[rad] or a real number multiple of π[rad].
The phase adjustment unit is arranged between the output branch unit and the resistor.
The phase adjustment unit is arranged between the resistor and the coupling terminal.
The phase adjustment unit includes a first phase adjustment unit connected to the output branch unit, and a second phase adjustment unit connected to the coupling terminal, and the resistor is arranged between the first phase adjustment unit and the second phase adjustment unit.
When input impedance is Zin, output impedance is Zout, and distribution number is n, characteristic impedance Z1 of the distribution line is designed as √ (n Zin Zout) and a resistance value R of the resistor is designed as Zout.
Characteristic impedance Z2 of the phase adjustment unit is designed to be in a range of Zout/2≤Z2≤2*Zout.
The phase adjustment unit is achieved by a phase adjustment line whose length from the input branch unit to the output branch unit is λ/2 or an integral multiple of λ/2.
At least one of the distribution line or the phase adjustment unit includes one or more structures that connect different planes, and the input branch unit and the coupling terminal are located on different planes.
The input branch unit and the coupling terminal are on the same vertical line, and the distribution line, the phase adjustment unit, and the isolation resistor are arranged n times symmetrically about the vertical line.
A synthesizer according to another aspect of the present technology is formed on a substrate and includes: an input branch unit that is connected to an external transmission line on an input side, and divides each of n paths into an internal side and a synthesis line; an output synthesis unit that synthesizes synthesis lines divided for each of the n paths, and is connected to an external transmission line on an output side; a coupling terminal that couples the n paths on the internal side; and a phase adjustment unit that is arranged between the input branch unit and the coupling terminal so as to be connected in series with a resistor, and adjusts a phase, in which a phase rotation amount from the input branch unit to the output synthesis unit of each of the n paths is π/2 [rad], and a phase rotation amount from the input branch unit to the coupling terminal is π[rad] or a real number multiple of π[rad].
The phase adjustment unit is arranged between the input branch unit and the resistor.
The phase adjustment unit is arranged between the resistor and the coupling terminal.
The phase adjustment unit includes a first phase adjustment unit connected to the input branch unit, and a second phase adjustment unit connected to the coupling terminal, and the resistor is arranged between the first phase adjustment unit and the second phase adjustment unit.
When input impedance is Zin, output impedance is Zout, and distribution number is n, characteristic impedance Z1 of the synthesis line is designed as √ (n Zin Zout), and a resistance value R of the resistor is designed as Zout.
Characteristic impedance Z2 of the phase adjustment unit is designed to be in a range of Zout/2≤Z2≤2*Zout.
The phase adjustment unit is achieved by a phase adjustment line whose length from the input branch unit to the output synthesis unit is λ/2 or an integral multiple of λ/2.
At least one of the synthesis line or the phase adjustment unit includes one or more structures that connect different planes, and the output synthesis unit and the coupling terminal are located on different planes.
The output synthesis unit and the coupling terminal are on the same vertical line, and the synthesis line, the phase adjustment unit, and the resistor are arranged n times symmetrically about the vertical line.
In an aspect of the present technology, the present technology is formed on a substrate and includes: an input branch unit connected to an external transmission line on an input side; a distribution line that re-distributes a path from the input branch unit; an output branch unit that is connected to an output side of the distribution line and divides n-distributed paths into an internal side and the external transmission line on the output side; a coupling terminal that couples the re-distributed paths on the internal side; and a phase adjustment unit that is arranged between the output branch unit and the coupling terminal so as to be connected in series with a resistor, and adjusts a phase. At that time, the phase rotation amount from the input branch unit to the output branch unit of each of the n-distributed paths is π/2 [rad], and the phase rotation amount from the output branch unit to the coupling terminal is π[rad] or a real number multiple of π[rad].
In another aspect of the present technology, the present technology is formed on a substrate and includes: an input branch unit that is connected to an external transmission line on an input side, and divides each paths into an internal side and a synthesis line for each of n paths; an output synthesis unit that synthesizes synthesis lines divided for each n paths, and is connected to an external transmission line on an output side; a coupling terminal that couples the n paths on the internal side; and a phase adjustment unit that is arranged between the input branch unit and the coupling terminal so as to be connected in series with a resistor, and adjusts a phase. At that time, the phase rotation amount from the input branch unit to the output synthesis unit of each of n is π/2 [rad], and the phase rotation amount from the input branch unit to the coupling terminal is π[rad] or a real number multiple of π[rad].
According to the present technology, particularly, downsizing and low loss can be achieved.
Note that the effects described herein are merely illustrative, effects of the present technology are not limited to the effects described herein, and the present technology may have additional effects.
Hereinafter, modes (hereinafter referred to as embodiments) for implementing the present disclosure will be described. The description will be given in the following order.
1. Some configuration examples of signal processing device
2. Configuration example of distributor/synthesizer
3. First structure example of distributor/synthesizer
4. Simulation results
5. Second structure example of distributor/synthesizer
6. Third structure example of distributor/synthesizer
7. Fourth structure example of distributor/synthesizer
8. Configuration example of phase adjustment unit
<Some Configuration Examples of Signal Processing Device>
The amplifier 21-1 amplifies a signal from a signal processing unit and outputs the amplified signal to the filter 22-1. The amplifier 21-2 amplifies a signal from the filter 22-2 and outputs the amplified signal to a signal processing unit (not shown).
The filter 22-1 performs filter processing on the signal from the amplifier 21-1, and outputs the filtered signal to the switch 23. The filter 22-2 performs filter processing on the signal from the distributor/synthesizer 24 input via the switch 23, and outputs the filtered signal to the amplifier 21-2.
At the time of signal transmission, the switch 23 selects a terminal on the filter 22-1 side and outputs a signal from the terminal on the filter 22-1 side to the distributor/synthesizer 24. Furthermore, at the time of receiving a signal, the switch 23 selects a terminal on the filter 22-2 side, and outputs a signal from the distributor/synthesizer 24 to a terminal on the filter 22-2 side.
The distributor/synthesizer 24 synthesizes the signals from the phase shifters 25-1 to 25-4 and outputs the synthesized signals to the switch 23. Furthermore, the distributor/synthesizer 24 distributes the signal from the switch 23 and outputs the signal to the phase shifters 25-1 to 25-4.
Each of the phase shifters 25-1 to 25-4 performs phase shift for matching the phases of the signals from the antennas 26-1 to 26-4, respectively, and outputs the phase-shifted signals to the distributor/synthesizer 24. Each of the phase shifters 25-1 to 25-4 performs phase shift for slightly shifting the phase of the signal from the distributor/synthesizer 24, and outputs the phase-shifted signal to the antennas 26-1 to 26-4.
The antennas 26-1 to 26-4 are omnidirectional antennas and constitute a four-element antenna array. Each of the antennas 26-1 to 26-4 receives, for example, a signal from a radio wave base station, and outputs the received signal to the phase shifters 25-1 to 25-4. Furthermore, the antennas 26-1 to 26-4 transmit signals from the phase shifters 25-1 to 25-4 to the radio wave base station, respectively.
Note that, in the example of
In the following description, the amplifiers 21-1 and 21-2 are collectively referred to as the amplifier 21, and the filters 22-1 and 22-2 are collectively referred to as the filter 22 in a case where it is not particularly necessary to distinguish between them. Furthermore, the phase shifters 25-1 to 25-4 are collectively referred to as a phase shifter 25, and the antennas 26-1 to 26-4 are collectively referred to as an antenna 26.
<Configuration Example of Distributor/Synthesizer>
Hereinafter, an example of signal distribution will be described. Note that, in the case of synthesis, the signal flow is reversed, and the input side and output side are opposite to those in the case of distribution.
The distributor/synthesizer 24 is formed on the substrate. The distributor/synthesizer 24 includes an input and output terminal 51, an input branch unit 52, distribution lines 53-1 to 53-4, an output branch unit 54, phase adjustment units 55-1 to 55-4, isolation resistors 56-1 to 56-4, a coupling terminal 57, and input and output terminals 58-1 to 58-4.
Hereinafter, in a case where it is not particularly necessary to distinguish between them, the distribution lines 53-1 to 53-4 are collectively referred to as the distribution line 53, and the phase adjustment units 55-1 to 55-8 are collectively referred to as the phase adjustment unit 55 as appropriate. The input and output terminals 58-1 to 58-8 are collectively referred to as the input and output terminal 58.
The input and output terminal 51 inputs a signal from an external transmission line on the input side connected to the switch 23 to the input branch unit 52. The characteristic impedance at the input and output terminal 51 is defined as input impedance Zin.
The input branch unit 52 connects the external transmission line on the input side and the distribution lines 53-1 to 53-4.
The distribution lines 53-1 to 53-4 distribute paths from the input branch unit 52 into four. “Z1, π/2” shown in the blocks of the distribution lines 53-1 to 53-4 in
The output branch unit 54 is connected to the output side of the distribution lines 53-1 to 53-4 and divides the four-distributed paths into an internal path and an output external transmission line. The internal path represents a path connected to the phase adjustment units 55-1 to 55-4, the isolation resistors 56-1 to 56-4, and the coupling terminal 57.
In the internal path, the phase adjustment units 55-1 to 55-4 are arranged in front of the isolation resistors 56-1 to 56-4, respectively, and are connected in series with the isolation resistors 56-1 to 56-4.
“Z2, n” shown in the blocks of the phase adjustment units 55-1 to 55-4 in
The isolation resistors 56-1 to 56-4 are resistors for obtaining inter-terminal isolation characteristics. Note that the type of isolation resistor may be any type such as a chip resistor or a thin film resistor.
Terminals on one side of the isolation resistors 56-1 to 56-4 are connected to the phase adjusters 55-1 to 55-4, respectively, and the other terminals are connected to the common coupling terminal 57.
The coupling terminal 57 couples internal paths each connected to the isolation resistors 56-1 to 56-4.
The input and output terminals 58-1 to 58-4 output signals from the output branch unit 54 to external transmission lines connected to the antennas 26-1 to 26-4, respectively. The characteristic impedance at the input and output terminals 58-1 to 58-4 is defined as an output impedance Zout.
Note that, in the above description, it has been described that the phase rotation amounts of the phase adjustment units 55-1 to 55-4 are π[rad] or real number multiples of π[rad], respectively. Specifically, each phase rotation amount of the total of one phase adjustment unit, one isolation resistor, and half the size of the coupling terminal 57 (viewed from above), that is, on the path from the branch point of the output branch unit 54 indicated by the black dot to the coupling element 57 is π[rad] or a real number multiple of n [rad].
Furthermore, the distributor including the input and output terminal 51, the input branch unit 52, the distribution lines 53-1 to 53-4, the output branch unit 54, the isolation resistors 56-1 to 56-4, the coupling terminal 57, and the input and output terminal 58 is a Wilkinson distributor.
In other words, the distributor/synthesizer 24 is obtained by adding phase adjustment units 55-1 to 55-4 that rotate the phase by π[rad] or a real number multiple of π[rad], in series with the isolation resistors 56-1 to 56-4 of the Wilkinson distributor.
Here, when input impedance is Zin, output impedance is Zout, and the distribution number is n, characteristic impedance Z1 of the distribution line 53 is designed as (n Zin Zout). Furthermore, the resistance value R of the isolation resistor 56 is designed as Zout.
Note that each characteristic impedance Z2 of the phase adjustment units 55-1 to 55-4 may take any value, but it affects the frequency band and wiring area, so that it is necessary to adjust the characteristic impedance Z2 according to the input and output impedance and the distribution number. By setting the characteristic impedance Z2 of the phase adjustment units 55-1 to 55-4 to a value that satisfies the condition of Zout/2≤Z2≤2*Zout, the bandwidth with the fractional bandwidth of about 10% (−20 dB width) can be secured. The fractional bandwidth is a frequency resource and is a ratio of the bandwidth to the center frequency.
Note that, as described above, in the case of synthesis, the signal flow is reversed, and the input side and the output side are opposite to those in the case of distribution. In other words, the input and output terminal 51 is an output side terminal, and the input and output terminals 58-1 to 58-4 are input side terminals.
The output branch unit 54 is an input branch unit, the distribution line 53 is a synthesis line, and the input branch unit 52 is an output synthesis unit.
In other words, as to the configuration in the case of synthesis by showing the role in the case of synthesis in parentheses, the output branch unit (input branch unit) 54 is connected to the external transmission line on the input side via the input and output terminal 58. The output branch unit (input branch unit) 54 is divided into an internal path and a distribution line (synthesis line) 53 for each of the n paths.
The input branch unit (output synthesis unit) 52 is connected to the output side of the distribution line (synthesis line) 53 distributed for each of the n paths, and is connected to the external transmission line on the output side via the input and output terminal 51.
In the internal path, the coupling terminal 57 couples n paths. The phase adjustment unit 55 is arranged between the output branch unit (input branch unit) 54 and the coupling terminal 57 so as to be connected in series with the isolation resistor 56, and adjusts the phase.
Other configurations are similar to the case of the distribution. Also in the case of synthesis, the phase rotation amount on the path from the output branch unit (input branch unit) 54 to the input branch unit (output synthesis unit) 52 is π/2 [rad] for each of the n paths. Furthermore, the phase rotation amount on the path from the output branch unit (input branch unit) 54 to the coupling terminal 57 is π[rad] or a real number multiple of π[rad].
Note that, in
Therefore, as shown in the example of the next
The equivalent circuit diagram of
In the example of
The output branch unit 54 is connected to the output side of the distribution line 53 and divides the four-distributed paths into an internal path and an output external transmission line. The internal path represents a path connected to the isolation resistor 56, the phase adjustment unit 55, and the coupling terminal 57.
In the internal path, the isolation resistor 56 is arranged in the preceding stage of the phase adjustment unit 55 and is connected in series with the phase adjustment unit 55.
One terminal of the phase adjustment unit 55 is connected to the isolation resistor 56, and the other terminal is connected to the common coupling terminal 57. “Z2, π” shown in the blocks of the phase adjustment unit 55 in
With the configuration as shown in
Therefore, as shown in the example of
The equivalent circuit diagram of
Hereinafter, the phase adjustment units 55a-1 to 55a-4 are collectively referred to as a phase adjustment unit 55a, and the phase adjustment units 55b-1 to 55b-4 are collectively referred to as a phase adjustment unit 55b, in a case where it is not particularly necessary to distinguish them.
The output branch unit 54 is connected to the output side of the distribution line 53 and divides the four-distributed paths into an internal path and an output external transmission line. The internal path represents a path connected to the phase adjustment unit 55a, the isolation resistor 56, the phase adjustment unit 55b, and the coupling terminal 57.
In the internal path, the phase adjustment unit 55a is arranged in the preceding stage of the isolation resistor 56. The phase adjustment unit 55b is arranged in the subsequent stage of the isolation resistor 56.
The phase adjustment unit 55a, the isolation resistor 56, and the phase adjustment unit 55b are connected in series. Each of the characteristic impedances of the phase adjustment unit 55a and the phase adjustment unit 55b is characteristic impedance Z2.
“Z2, θ1” shown in the blocks of the phase adjustment unit 55a in
“Z2, θ2” shown in the block of the phase adjustment unit 55b in
Note that, since
With the configuration as shown in
As described above, as the configuration of the distributor/synthesizer 24, various configurations can be selected according to the size of the isolation resistor 56 or the arrangement method of the phase adjustment unit 55.
Next, the first structure of the distributor/synthesizer 24 will be described with reference to
In the example of
Each wiring is achieved by, for example, a copper pattern on a flame retardant type 4 (FR4) substrate. A VIA is used for wiring connection between layers.
Hereinafter, the phase adjustment lines 61-1 to 61-4 are collectively referred to as the phase adjustment line 61, and the output transmission lines 63-1 to 63-4 are collectively referred to as the output transmission line 63 in a case where it is not particularly necessary to distinguish them.
In the example of
Note that, in the distributor/synthesizer 24, it is formed such that the phase rotation amount in the path indicated by the arrow #11 from the output branch unit 54 to the coupling terminal 57 including the phase adjustment line 61 and the isolation resistor 56 is n [rad] or a real number multiple of π[rad].
In the cross-sectional structure of
In the second layer, a part of the path of the distribution line 53 is arranged. The distribution line 53 is configured by a part of the path arranged in the second layer and the VIA 72. The distribution line 53 is connected to the phase adjustment line 61 and the output transmission line 63 of the third layer at the output branch unit 54 via the VIA 72.
In the third layer which is the uppermost layer, the output transmission line 63, the phase adjustment line 61, the coupling terminal 57, and the isolation resistor 56 are arranged.
As described above, at least one of the distribution line 53 or the phase adjustment line 61 includes one or more structures (such as VIA) that connect different planes (layers). Furthermore, the input branch unit 52 and the coupling terminal 57 are located on different planes (layers).
As shown in
Here, as shown in
For example, since λ/2 in a high frequency signal of about 30 GHz is about 2.5 mm on the FR4 substrate, a 0603 size (length 0.6 mm) high frequency chip resistor or the like can be used as the isolation resistor 56. A thin film resistance or ink resistance by vapor deposition may be used as the isolation resistor 56.
<Simulation Results>
In
In
As shown in
In
As shown in
As shown in the above simulation results of
Moreover, in the conventional quadrant distributor shown in
In a case where the distribution number is increased, for example, to eight distributions, the path is further extended and the length between the input and output is 3λ/4 in the conventional eight-equal distributor arranged on the substrate. When the present technology is used, it is sufficient if the length is λ/4 as similar to the case of four-distribution.
Next, the second structure of the distributor/synthesizer 24 will be described with reference to
In the example of
Each wiring is achieved by, for example, a copper pattern on the FR4 substrate. Furthermore, a VIA is used for wiring connection between layers.
Hereinafter, the phase adjustment units 55-1 to 55-8 are collectively referred to as the phase adjustment unit 55, and the input and output terminals 58-1 to 58-8 are collectively referred to as the input and output terminal 58 in a case where it is not particularly necessary to distinguish them. The phase adjustment lines 61-1 to 61-8 are collectively referred to as the phase adjustment line 61, and the output transmission lines 63-1 to 63-8 are collectively referred to as the output transmission line 63.
In
In the cross-sectional structure of
In the second layer, a part of the path of the distribution line 53 is arranged. The distribution line 53 is configured by a part of the path arranged in the second layer and the VIA 72. The distribution line 53 is connected to the phase adjustment line 61 and the output transmission line 63 of the third layer at the output branch unit 54 via the VIA 72.
In the third layer which is the uppermost layer, the output transmission line 63, the phase adjustment line 61, the coupling terminal 57, and the isolation resistor 56 are arranged.
As described above, at least one of the distribution line 53 or the phase adjustment line 61 includes one or more structures (such as VIA) that connect different planes (layers), and the input branch unit 52 and the coupling terminal 57 are located on different planes (layers).
As shown in
In the case of
As described above, by providing the GND layer 91 between the second layer and the third layer wirings, the capacitive coupling between the second layer and the third layer wirings can be removed. As a result, the impedance of the wiring is stabilized, and a distributor/synthesizer with better characteristics can be achieved.
Furthermore, even if the wiring patterns of the second layer and the third layer overlap, impedance mismatch does not occur, so that configuration with a distribution number exceeding four divisions can be made easily.
Next, the third structure of the distributor/synthesizer 24 will be described with reference to
As shown in
By configuring as described above, impedance mismatch due to VIA can be alleviated, so that reflection at VIA can be suppressed and pass characteristics can be improved.
In the examples of
Next, the fourth structure of the distributor/synthesizer 24 will be described with reference to
The distributor/synthesizer 24 of
Hereinafter, the input transmission lines 121-1 to 121-4 are collectively referred to as the input transmission line 121, the output transmission lines 122-1 to 122-4 are collectively referred to as the output transmission line 122, and the distribution lines 123-1 to 123-4 are collectively referred to as the distribution line 123 in a case where it is not particularly necessary to distinguish them.
In
In the cross-sectional structure of
In the second layer, a part of the path of the input transmission line 121 and the output transmission line 122 are formed by strip lines. The input transmission line 121 includes a part of the path and a path connecting the third layer and the second layer. The input transmission line 121 is connected to the distribution line 123 of the third layer at the input branch unit 52 through a path connecting the third layer and the second layer.
In the third layer, a part of the path of the distribution line 123 is formed by a microstrip line. The distribution line 123 includes a part of the path and a via connecting the third layer and the second layer. The distribution line 123 is connected to the output transmission line 122 of the second layer at the output branch unit 54 via the via.
Here, both the input transmission line 121 and the output transmission line 122 often take the value of 50Ω. On the other hand, the distribution line 123 requires higher characteristic impedance than the input transmission line 121 and the output transmission line 122 so that the distribution line takes the value of 100Ω in four distributions. If these transmission lines are mounted on the same plane, the design may have a line width that is difficult to achieve.
Therefore, in the distributor/synthesizer 24 of
Although the case where the phase adjustment unit 55 is configured as the phase adjustment line 61 has been described above, the phase adjustment unit 55 may be configured as follows.
<Configuration Example of Phase Adjustment Unit>
The phase adjustment unit 55 of
A of
B of
In the phase adjustment unit 55, the impedance characteristic Z2 in the transmission line 151 may be anything, and matching can be performed by selecting a lumped constant value for an arbitrary 8.
Even in a case where the transmission line 151 of the phase adjustment unit 55 cannot be adjusted to a length having a phase rotation amount that of π[rad] or a real number multiple of π[rad], the phase can be adjusted to π[rad] or a real number multiple of π[rad] by adding a delay circuit using an LC lumped constant.
Note that the phase adjustment unit 55 is not limited to the one described above, and may be anything as long as it adjusts the phase, and may be a phase shifter.
As described above, in the present technology, the phase adjustment unit that is connected in series with the resistor is provided, so that even in a case where the size of the VIA or the resistor is not sufficiently small with respect to the wavelength, a design that does not impair the isolation characteristics is possible.
Furthermore, according to the present technology, since the phase adjustment unit has a size, the degree of freedom in mounting the isolation resistor is increased, so that mounting can be made on the substrate with a reasonable structure.
Furthermore, a distributor/synthesizer having three or more distributions can achieve more downsizing and lower loss than a multi-distributor/synthesizer in which the conventional Wilkinson two-distributor shown in
The present technology is also applied to a distributor/synthesizer, a distributor, and a synthesizer, and a mobile phone, a smartphone, a tablet terminal, a personal computer, a mobile terminal, and the like including these.
While preferred embodiments of the present disclosure have been described in detail with reference to the accompanying drawings, the disclosure is not limited to such examples. It is obvious that various variations and modifications can be conceived within the scope of the technical idea described in the claims by a person having ordinary knowledge in the field of technology to which the present disclosure belongs, and, of course, it is understood that these variations and modifications belong to the technical scope of present disclosure.
Note that, the present technology can adopt the following configuration.
(1)
A distributor formed on a substrate and including:
an input branch unit connected to an external transmission line on an input side;
a distribution line that distributes a path from the input branch unit into n;
an output branch unit that is connected to an output side of the distribution line and divides re-distributed paths into an internal side and the external transmission line on the output side;
a coupling terminal that couples the n-distributed paths on the internal side; and
a phase adjustment unit that is arranged between the output branch unit and the coupling terminal so as to be connected in series with a resistor, and adjusts a phase,
in which a phase rotation amount from the input branch unit to the output branch unit of each of the re-distributed paths is π/2 [rad], and
a phase rotation amount from the output branch unit to the coupling terminal is π[rad] or a real number multiple of π[rad] including magnitude of the resistor.
(2)
The distributor according to (1) described above,
in which the phase adjustment unit is arranged between the output branch unit and the resistor.
(3)
The distributor according to (1) described above,
in which the phase adjustment unit is arranged between the resistor and the coupling terminal.
(4)
The distributor according to (1) described above,
in which the phase adjustment unit includes a first phase adjustment unit connected to the output branch unit, and a second phase adjustment unit connected to the coupling terminal, and
the resistor is arranged between the first phase adjustment unit and the second phase adjustment unit.
(5)
The distributor according to any of (1) to (4) described above,
in which, when input impedance is Zin, output impedance is Zout, and distribution number is n,
characteristic impedance Z1 of the distribution line is designed as √ (n Zin Zout), and
a resistance value R of the resistor is designed as Zout.
(6)
The distributor according to (5) described above,
in which characteristic impedance Z2 of the phase adjustment unit is designed to be in a range of Zout/2≤Z2≤2*Zout.
(7)
The distributor according to any of (1) to (6) described above,
in which the phase adjustment unit is achieved by a phase adjustment line whose length from the input branch unit to the output branch unit is λ/2 or an integral multiple of λ/2.
(8)
The distributor according to any of (1) to (7) described above,
in which at least one of the distribution line or the phase adjustment unit includes one or more structures that connect different planes, and
the input branch unit and the coupling terminal are located on different planes.
(9)
The distributor according to (8) described above,
in which the input branch unit and the coupling terminal are on the same vertical line, and
the distribution line, the phase adjustment unit, and the isolation resistor are arranged n times symmetrically about the vertical line.
(10)
A synthesizer formed on a substrate and including:
an input branch unit that is connected to an external transmission line on an input side, and divides each of n paths into an internal side and a synthesis line;
an output synthesis unit that synthesizes synthesis lines divided for each of the n paths, and is connected to an external transmission line on an output side;
a coupling terminal that couples the n paths on the internal side; and
a phase adjustment unit that is arranged between the input branch unit and the coupling terminal so as to be connected in series with a resistor, and adjusts a phase,
in which a phase rotation amount from the input branch unit to the output synthesis unit of each of the n paths is π/2 [rad], and
a phase rotation amount from the input branch unit to the coupling terminal is π[rad] or a real number multiple of π[rad].
(11)
The synthesizer according to (10) described above,
in which the phase adjustment unit is arranged between the input branch unit and the resistor.
(12)
The synthesizer according to (10) described above,
in which the phase adjustment unit is arranged between the resistor and the coupling terminal.
(13)
The synthesizer according to (10) described above,
in which the phase adjustment unit includes a first phase adjustment unit connected to the input branch unit, and a second phase adjustment unit connected to the coupling terminal, and
the resistor is arranged between the first phase adjustment unit and the second phase adjustment unit.
(14)
The synthesizer according to any of (10) to (13) described above,
in which, when input impedance is Zin, output impedance is Zout, and distribution number is n,
characteristic impedance Z1 of the synthesis line is designed as √ (n Zin Zout), and
a resistance value R of the resistor is designed as Zout.
(15)
The synthesizer according to (14) described above,
in which characteristic impedance Z2 of the phase adjustment unit is designed to be in a range of Zout/2≤Z2≤2*Zout.
(16)
The synthesizer according to any of (10) to (15) described above,
in which the phase adjustment unit is achieved by a phase adjustment line whose length from the input branch unit to the output synthesis unit is λ/2 or an integral multiple of λ/2.
(17)
The synthesizer according to any of (10) to (16) described above,
in which at least one of the synthesis line or the phase adjustment unit includes one or more structures that connect different planes, and
the output synthesis unit and the coupling terminal are located on different planes.
(18)
The synthesizer according to (17) described above,
in which the output synthesis unit and the coupling terminal are on the same vertical line, and
the synthesis line, the phase adjustment unit, and the resistor are arranged n times symmetrically about the vertical line.
| Number | Date | Country | Kind |
|---|---|---|---|
| JP2017-127020 | Jun 2017 | JP | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/JP2018/022857 | 6/15/2018 | WO | 00 |
| Publishing Document | Publishing Date | Country | Kind |
|---|---|---|---|
| WO2019/003952 | 1/3/2019 | WO | A |
| Number | Name | Date | Kind |
|---|---|---|---|
| 5021755 | Gustafson | Jun 1991 | A |
| 7164903 | Cliff | Jan 2007 | B1 |
| 8698577 | Sherrer | Apr 2014 | B2 |
| 20070200204 | Suzuki et al. | Aug 2007 | A1 |
| 20130093533 | Yu et al. | Apr 2013 | A1 |
| Number | Date | Country |
|---|---|---|
| 1179030 | Apr 1998 | CN |
| 1938898 | Mar 2007 | CN |
| 101465457 | Jun 2009 | CN |
| 103943930 | Jul 2014 | CN |
| 104051822 | Sep 2014 | CN |
| 2471141 | Sep 2013 | EP |
| 49-128142 | Nov 1974 | JP |
| 55-073119 | Jun 1980 | JP |
| 02-203604 | Aug 1990 | JP |
| 09-321509 | Dec 1997 | JP |
| 11-097952 | Aug 1999 | JP |
| 11-340712 | Dec 1999 | JP |
| 2013-502874 | Jan 2013 | JP |
| Entry |
|---|
| U. H. Gysel, “A New N-Way Power Divider/Combiner Suitable for High-Power Applications,” Standford Research Institute, Menio Park, CA 94025, Sep. 11, 2018. |
| Chinese Office Action dated Mar. 15, 2021 for corresponding Chinese Application No. 2018800417410. |
| “Microwave Integrated Circuit Design” May 31, 1978 GU, Qizheng et al., Posts & Telecom Press Co., Ltd 310-311. |
| Chinese Notification to Grant Patent Right For Invention dated Aug. 17, 2021 for corresponding Chinese Application No. 201880041741.0. |
| Xu Hongjie, ,“Research on the key technology of the front end of active phase array antenna”, Full Text «China's outstanding master's degree thesis full-text database information section5» Apr. 18, 2007. |
| Number | Date | Country | |
|---|---|---|---|
| 20200161737 A1 | May 2020 | US |
