Patent Application
20250038415
A configuration of an antenna module may include a bent dielectric substrate is disclosed. In the antenna module, radiating elements are disposed on two surfaces whose normal directions are different.
An antenna module according to the present disclosure includes a first substrate at which a first radiating element with a flat plate shape is disposed, and a second substrate at which a second radiating element is disposed. The first substrate has a first surface and a second surface that are opposite each other. The first radiating element is disposed on the second surface of the first substrate or at a position between the first surface and the second surface of the first substrate. The second substrate includes a first region that is arranged so as to abut the first substrate between the first surface of the first substrate and the second surface of the first substrate and a second region that is in contact with the first surface of the first substrate. A normal direction of the second radiating element is different from a normal direction of the first radiating element.
A kit for an antenna module according to the present disclosure includes a first substrate, and a second substrate. The first substrate includes an upper main surface and a lower main surface. A first connecting electrode is mounted on the upper main surface, a first radiating element is mounted on the lower main surface, and a recess is formed in the first substrate. The second substrate includes a first potion and a second portion. A second radiating element is mounted on the first portion, a second connecting electrode is mounted on the second portion, and a width of the first portion is smaller than width of the recess.
A method for assembling an antenna module according to the present disclosure includes obtaining a first substrate including an upper main surface and a lower main surface, wherein a first connecting electrode is mounted on the upper main surface, a first radiating element is mounted on the lower main surface, and a recess is formed in the first substrate; obtaining a second substrate including a first potion and a second portion, wherein a second radiating element is mounted on the first portion, a second connecting electrode is mounted on the second portion, and a width of the first portion is smaller than width of the recess; mounting the second substrate onto the first substrate such that the first portion fits to the recess; and connecting the first connecting electrode and the second connecting electrode.
The present disclosure relates to an antenna module, and more particularly, to a technique for reducing the size of an antenna module capable of radiating radio waves in two directions.
The antenna module may be used in, for example, communication apparatuses represented by portable terminals such as cellular phones or smartphones. Further reductions in size and thickness of such communication apparatuses have been desired, and further reductions in size and height of antenna modules mounted on such communication apparatuses have also been required.
Meanwhile, if a further reduction in the height in the configuration including the bent dielectric substrate is made, a mechanical strength of the bent part may be deteriorated and a difficulty may arise in power supply via the bent part.
The present disclosure has been designed in light of this and an aspect of the present disclosure includes reducing the height of an antenna module capable of radiating radio waves in two directions while maintaining the mechanical strength of the antenna module.
In the antenna module according to the present disclosure, in a recessed part formed at a first substrate at which a first radiating element is disposed, a second substrate at which a second radiating element whose radiation direction (normal direction) is different is disposed is fitted, and the second substrate is fixed on a main surface (first surface) of the first substrate. With this arrangement, the two substrates can be fixed to each other without a bent part being provided. Thus, a reduction in the height of an antenna module capable of radiating radio waves in two directions can be achieved while ensuring the mechanical strength.
Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to drawings. In the drawings, the same or corresponding parts are denoted by the same signs, and repetitive description of those parts will not be provided.
Referring to
The antenna device 120 includes a dielectric substrate 130A and a plurality of dielectric substrates 130B. A plurality of radiating elements 125A are disposed at the dielectric substrate 130A. Each of the radiating elements 125A includes radiating electrodes 121A and 122A with a flat plate shape. A radiating element 125B is disposed at each of the dielectric substrates 130B. The radiating element 125B includes radiating electrodes 121B and 122B with a flat plate shape.
Each of the radiating electrodes included in each of the radiating elements 125A and 125B is a flat-plate-shaped patch antenna with a circular shape, an oval shape, or a polygonal shape. In an example of the first exemplary embodiment, each of the radiating electrodes is a microstrip antenna with a substantially square shape. In the radiating elements 125A, the radiating electrodes 121A are smaller in size than the radiating electrodes 122A. Thus, the frequency range of radio waves radiated from the radiating electrodes 121A is higher than the frequency range of radio waves radiated from the radiating electrodes 122A. Similarly, in the radiating elements 125B, the radiating electrodes 121B are smaller in size than the radiating electrodes 122B, and the frequency range of radio waves radiated from the radiating electrodes 121B is higher than the frequency range of radio waves radiated from the radiating electrodes 122B. That is, the antenna module 100 in the example of
In the description provided below, the dielectric substrate 130A at which the plurality of radiating elements 125A are disposed will also be referred to as a “main substrate 108” and the individual dielectric substrates 130B at which the radiating elements 125B are disposed will also be referred to as “antenna blocks 107”. As described later with reference to
In
The RFIC 110 includes four power feed circuits 110A to 110D. The power feed circuit 110A is a circuit for supplying a high frequency signal to the radiating electrodes 121A at the main substrate 108. The power feed circuit 110B is a circuit for supplying a high frequency signal to the radiating electrodes 122A at the main substrate 108. The power feed circuit 110C is a circuit for supplying a high frequency signal to the radiating electrodes 122B at the antenna blocks 107. The power feed circuit 110D is a circuit for supplying a high frequency signal to the radiating electrodes 121B at the antenna blocks 107. The power feed circuits 110A to 110D have the same internal configurations. Therefore, in
The power feed circuit 110A includes switches 111A to 111D, 113A to 113D, and 117, power amplifiers 112AT to 112DT, low noise amplifiers 112AR to 112DR, attenuators 114A to 114D, phase shifters 115A to 115D, a signal combiner/splitter 116, a mixer 118, and an amplifier circuit 119.
For transmission of a high frequency signal, the switches 111A to 111D and 113A to 113D are switched to the power amplifiers 112AT to 112DT side, and the switch 117 is connected to a transmission-side amplifier in the amplifier circuit 119. For reception of a high frequency signal, the switches 111A to 111D and 113A to 113D are switched to the low noise amplifiers 112AR to 112DR side, and the switch 117 is connected to a reception-side amplifier in the amplifier circuit 119.
A signal at an intermediate frequency transmitted from the BBIC 200 is amplified by the amplifier circuit 119 and is up-converted by the mixer 118. A transmission signal, which is the up-converted high frequency signal, is split into four waves by the signal combiner/splitter 116. The split waves flow through corresponding signal paths, and power is fed to different radiating electrodes 121A. By individually adjusting the degrees of phase shift of the phase shifters 115A to 115D disposed at the signal paths, directivity of radio waves output from the radiating electrodes 121A can be adjusted.
Reception signals, which are high frequency signals received at the radiating electrodes 121A, are transmitted to the power feed circuit 110A in the RFIC 110, flow through different four signal paths, and are combined at the signal combiner/splitter 116. The combined reception signal is down-converted by the mixer 118, is further amplified by the amplifier circuit 119, and is transmitted to the BBIC 200.
The RFIC 110 is, for example, formed as a one-chip integrated circuit component including the circuit configurations described above. Alternatively, an individual integrated circuit component may be formed for each power feed circuit. Furthermore, as devices (switches, a power amplifier, a low noise amplifier, an attenuator, and a phase shifter) corresponding to each radiating element, a one-chip integrated circuit component may be formed for the corresponding radiating element.
Next, a configuration of the antenna module 100 according to the first exemplary embodiment will be described in detail with reference to
In
Referring to
Each of the dielectric substrates 130A and 130B is, for example, a low temperature co-fired ceramic (LTCC) multilayer substrate, a multilayer resin substrate formed by laminating multiple resin layers made of resin such as epoxy or polyimide, a multilayer resin substrate formed by laminating multiple resin layers made of liquid crystal polymer (LCP) having a lower permittivity, a multilayer resin substrate formed by laminating multiple resin layers made of fluorine-based resin, a multilayer resin substrate formed by laminating multiple resin layers made of a polyethylene terephthalate (PET) material, or a ceramic multilayer substrate made of a material other than LTCC. Each of the dielectric substrates 130A and 130B does not necessarily have a multilayer structure and may be a single-layer substrate.
The dielectric substrate 130A has a substantially rectangular shape with long sides in the X-axis direction when seen in a plan view from the Z-axis direction. A plurality of recessed parts (notched parts) 170 are formed at one long side along the X axis (end portion in the Y-axis positive direction) of the dielectric substrate 130A. The recessed parts 170 are formed up to a side surface (end portion) in the Y-axis positive direction of the dielectric substrate 130A and penetrate through the dielectric substrate 130A in the Z-axis direction. The antenna blocks 107 are partially fitted in and fixed into recesses of the recessed parts 170. The recessed parts 170 do not necessarily penetrate through the dielectric substrate 130A in the Z-axis direction as illustrated in
The connection electrodes 151 with a flat plate shape are disposed in parts of the main surface 131A that are in contact with the antenna blocks 107. The connection electrodes 151 are used for electrical connection between the antenna blocks 107 and the main substrate 108.
The dielectric substrate 130A has a main surface 132A located in the Z-axis positive direction and the main surface 131A located in a Z-axis negative direction. The plurality of radiating electrodes 121A are arranged in a line in the X-axis direction on the main surface 132A of the dielectric substrate 130A or at positions inside the dielectric substrate 130A that are near the main surface 132A. A system in package (SiP) module 105 including the RFIC 110, a power module IC (not illustrated in drawings), and the like and a connector 106 used for connection with an external apparatus are mounted on the main surface 131A. Furthermore, in a layer of the dielectric substrate 130A between the radiating electrode 121A and the main surface 131A, the ground electrode GND1 that is opposite the entire radiating electrode 121A is disposed.
A high frequency signal is supplied from the RFIC 110 via the power feed wire 141A to each of the radiating electrodes 121A. Inside the dielectric substrate 130A, the power feed wire 141A penetrates through the ground electrode GND1 and is connected to a power feed point SP1A of the radiating electrode 121A. In the example of
As illustrated in
As illustrated in
The connection electrode 152 with a flat plate shape is disposed on the surface in the Z-axis positive direction of the region RG2 of the dielectric substrate 130B. The connection electrode 152 is disposed at a position that is in contact with the connection electrode 151, which is disposed on the main surface 131A of the main substrate 108, in the state in which the antenna block 107 is fitted in the main substrate 108. For example, the connection electrode 151 and the connection electrode 152 are electrically connected by soldering. Electrical coupling between the connection electrode 151 and the connection electrode 152 is not necessarily direct connection and may be capacitance coupling without contact between the electrodes.
A high frequency signal is transmitted from the RFIC 110 via the power feed wire 141B to the radiating electrode 121B at the antenna block 107. The power feed wire 141B extends from the RFIC 110 and is connected through the dielectric substrate 130A, the connection electrodes 151 and 152, and the dielectric substrate 130B to a power feed point SP1B of the radiating electrode 121B. In the example of
In the antenna module 100 according to the first exemplary embodiment, the antenna block 107 is disposed at a position that is away from the radiating electrode 121A at the main substrate 108 in the Y-axis direction by a distance d1. Radio waves can be radiated toward two directions when the distance d1 is set to at least 0.05λ or more, where the wavelength of a radio wave radiated from the radiating electrode 121A is represented by λ. The main surface 131B of the dielectric substrate 130B does not project from the end portion in the Y-axis positive direction of the dielectric substrate 130A. In other words, when the dielectric substrate 130A is seen in a plan view from the normal direction (Z-axis direction), the dielectric substrate 130B is disposed to be more inward than the outermost peripheral end portion of the dielectric substrate 130A.
In the case where an antenna module capable of radiating radio waves in two directions is implemented using a bent dielectric substrate as described above, an amount of projection of one substrate part that is bent from the other substrate is likely to be large. Thus, constraints on the dimensions may arise in the case where a further reduction in height is made. Furthermore, a position and a number of bent parts connecting the two substrate surfaces is restricted, and a dielectric thickness of the bent part also needs to be reduced. Therefore, the mechanical strength of the bent part may be insufficient. In the case where a plurality of radiating electrodes is used, a situation in which a passage route for a power feed wire is not ensured may occur.
In contrast, in the antenna module 100 according to the first exemplary embodiment, by using the antenna block 107 in which one radiating electrode 121B is disposed at another dielectric substrate 130B, the antenna block 107 is fitted in the recessed part 170 of the main substrate 108 and the antenna block 107 is fixed on the main surface 131A of the main substrate 108. Thus, the two dielectric substrates 130A and 130B are fixed to overlap with surfaces thereof in contact with each other. Therefore, a further reduction in the height can be achieved, and mechanical strength can be ensured.
Furthermore, since the antenna block 107 can be configured as a separate dielectric substrate, the dielectric thickness (that is, the distance between the radiating electrode 121B and the ground electrode GND2) can be ensured. Consequently, antenna characteristics such as a frequency range of radiated radio waves can be improved. In particular, by increasing the permittivity of the dielectric substrate 130B to be higher than the permittivity of the dielectric substrate 130A, the entire size of the radiating electrode 121B and the antenna block 107 can be reduced compared to the case where dielectric substrates with the same permittivity are used. Therefore, further reductions in the height and the size can be achieved.
In
A “radiating element 125A” and a “radiating element 125B” in the first exemplary embodiment correspond to a “first radiating element” and a “second radiating element” in the present disclosure, respectively. A “radiating electrode 121A” and a “radiating electrode 122A” in the first exemplary embodiment correspond to a “first element” and a “second element” in the present disclosure, respectively. A “radiating electrode 121B” and a “radiating electrode 122B” in the first exemplary embodiment correspond to a “third element” and a “fourth element” in the present disclosure, respectively.
In the first exemplary embodiment, in the case of an array antenna, one of adjacent radiating elements 125A corresponds to a “first radiating element” in the present disclosure, and the other one of the adjacent radiating elements 125A corresponds to a “third radiating element” in the present disclosure. Similarly, one of adjacent radiating elements 125B corresponds to a “second radiating element” in the present disclosure, and the other one of the adjacent radiating elements 125B corresponds to a “fourth radiating element” in the present disclosure. The “X-axis direction” in the first exemplary embodiment corresponds to a “first direction” and a “second direction” in the present disclosure. The “Y-axis direction” in the first exemplary embodiment corresponds to a “third direction” in the present disclosure.
The “dielectric substrate 130A” and the “dielectric substrate 130B” in the first exemplary embodiment correspond to a “first substrate” and a “second substrate” in the present disclosure, respectively. The “main surface 131A” and the “main surface 132A” in the first exemplary embodiment correspond to a “first surface” and a “second surface” in the present disclosure, respectively. The “regions RG1 and RG2” in the first exemplary embodiment correspond to a “first region” and a “second region” in the present disclosure, respectively. The “ground electrodes GND1 and GND2” in the first exemplary embodiment correspond to a “first ground electrode” and a “second ground electrode” in the present disclosure, respectively.
In a modification, another configuration of an antenna block will be described.
Referring to
When the antenna block 107A is disposed at the main substrate 108 illustrated in
Also, in the case where the antenna block 107A according to the modification is used, a reduction in the height can be achieved while mechanical strength being ensured, as in the first exemplary embodiment.
The “dielectric substrate 130B1” in the modification corresponds to a “second substrate” in the present disclosure.
In a second exemplary embodiment, a configuration in which the antenna blocks 107 are disposed at positions of the main substrate 108 that are different from those described above will be described.
Referring to
The ground electrode GND2 is disposed at the dielectric substrate 130B. Thus, if the distance between the radiating electrode 121A and the dielectric substrate 130B is short, regarding a radio wave polarized in the Y-axis direction traveling from the radiating electrode 121A toward the dielectric substrate 130B, a line of electric force generated from the radiating electrode 121A interferes with the ground electrode GND2, which may impact the antenna characteristics.
In such a case, as in the antenna module 100A according to the second exemplary embodiment, by arranging part of the antenna block 107 so as to project out from the main substrate 108 so that the separation distance between the radiating electrode 121A and the ground electrode GND2 can be ensured, a deterioration in the antenna characteristics of the radiating electrode 121A can be suppressed.
As illustrated in
However, the dimension in the Y-axis direction of the antenna module 100A according to the second exemplary embodiment is larger than that of the antenna module 100. Thus, in terms of reducing size, an adverse effect is obtained. That is, there is a trade-off between antenna characteristics and reduction in size. Therefore, regarding which one of the configurations of the antenna modules 100 and 100A is to be adopted, an appropriate selection is made taking into consideration required specifications.
In a third exemplary embodiment, a configuration for improving antenna characteristics of radiating elements at the antenna blocks 107 will be described.
Referring to
It is known that a patch antenna typically exhibits excellent antenna characteristics in the case where a ground electrode that is disposed opposite a radiating electrode has a sufficiently large area. If the area of a ground electrode is small, a line of electric force generated from a radiating electrode goes behind the ground electrode. Thus, a radiation component toward a side surface and a rear surface of a dielectric substrate increases, which may cause a reduction in the antenna gain.
In the antenna module according to the first exemplary embodiment, as illustrated in
Thus, if antenna characteristics for radio waves polarized in the Z-axis direction do not satisfy desired required characteristics, by increasing the dimension in the Z-axis direction of the dielectric substrate 130B2 as in the antenna module 100B according to the third exemplary embodiment, the antenna characteristics can be adjusted.
However, in the case of the antenna module 100B according to the third exemplary embodiment, the dimension in the Z-axis direction of the entire antenna module 100B is larger than that of the antenna module 100A. Thus, in terms of reducing size, an adverse effect is obtained. Therefore, regarding which one of the configurations of the antenna modules 100A and 100B is to be adopted, an appropriate selection is made taking into consideration required specifications.
As illustrated in
In a fourth exemplary embodiment, a configuration in which the direction of radio waves radiated from antenna blocks is different from that described above will be described.
Referring to
Radio waves are radiated in the Z-axis positive direction indicated by the arrow AR1 from the radiating electrodes 121A and 122A.
The antenna block 107C includes a dielectric substrate 130B3, radiating electrodes 121B and 122B, and a ground electrode GND2A. The cross section of the dielectric substrate 130B3 has a shape obtained by cutting out part of corners of a rectangular shape when seen in a plan view from the X-axis direction. More specifically, the dielectric substrate 130B3 has a shape having a main surface 133B whose normal direction is an oblique direction between the Y-axis positive direction and the Z-axis negative direction.
At the dielectric substrate 130B3, the radiating electrodes 121B and 122B are arranged in parallel with the main surface 133B. Furthermore, the ground electrode GND2A is a metallic body with a surface that is in parallel with the main surface 133B. For example, the ground electrode GND2A may be configured such that a plurality of flat-plate electrodes that are in parallel with the main surface 133B are laminated and the plurality of flat-plate electrodes are connected by one or more vias. The radiating electrode 122B is disposed opposite the radiating electrode 121B between the radiating electrode 121B and the ground electrode GND2A.
A high frequency signal from the RFIC 110 is transmitted via the power feed wires 141B and 142B to the radiating electrodes 121B and 122B, respectively. The power feed wire 141B extends from the RFIC 110, passes through the dielectric substrate 130A and corresponding connection electrodes 151 and 152, penetrates through the ground electrode GND2A and the radiating electrode 122B inside the dielectric substrate 130B3, and is connected to the power feed point SP1B of the radiating electrode 121B. The power feed wire 142B extends from the RFIC 110, passes through the dielectric substrate 130A and corresponding connection electrodes 151 and 152, penetrates through the ground electrode GND2A inside the dielectric substrate 130B3, and is connected to the power feed point SP2B of the radiating electrode 122B.
With the arrangement described above, a radio wave is radiated in a direction indicated by arrow AR3 in
A recessed part may be formed in part of the region of the ground electrode GND2A that is opposite the radiating electrode 122B, so that the thickness of a dielectric layer between the radiating electrode 122B and the ground electrode GND2A can be increased. With this arrangement, the band width of radio waves radiated may be increased.
In the antenna module 100 according to the first exemplary embodiment, a configuration in which the antenna blocks 107 are disposed along one long side of the dielectric substrate 130A and radio waves are radiated in one direction using the antenna blocks 107 is described. In a fifth exemplary embodiment, a configuration in which radio waves are radiated in two direction using antenna blocks will be described.
In the example of the antenna module 100D, part of a high frequency signal to be supplied to the antenna blocks 107 is branched out and then supplied to the antenna block 107D. With this arrangement, radio waves can be radiated over a wider range. Therefore, total radiation power (TRP) can be maintained, an increase in the dimension in the X-axis direction of the dielectric substrate 130A can be suppressed, and equivalent isotopically radiated power (EIRP) and cumulative distribution function (CDF) of radiated power can be improved.
In a modification, a configuration in which an antenna block is further disposed in an end portion in the X-axis negative direction of the dielectric substrate 130A will be described.
In the antenna module 100E, one antenna block 107 is eliminated and four antenna blocks 107 are disposed along a long-side direction of the dielectric substrate 130A. In other words, the position of one of the antenna blocks 107 in the antenna module 100D is changed to the end portion in the X-axis negative direction. Moreover, in the antenna module 100E, the dimension in the X-axis direction of a Sip module 105E is shorter than that in the antenna module 100 and a reduction in the size is thus achieved. Therefore, the entire dimension in the X-axis direction of the dielectric substrate 130A is reduced.
With this arrangement, radio waves can also be radiated toward the X-axis negative direction, and radio waves can thus be radiated over a wider range. Thus, EIRP and CDF can be improved while TRP being maintained.
(First aspect) An antenna module according to an aspect includes a first substrate at which a first radiating element with a flat plate shape is disposed, and a second substrate at which a second radiating element with a flat plate shape is disposed. The first substrate has a first surface and a second surface that are opposite each other. The first radiating element is disposed on the second surface of the first substrate or at a position between the first surface and the second surface of the first substrate. A recessed part that is recessed in a normal direction of the first surface is formed on the first surface of the first substrate. The second substrate includes a first region that is arranged so as to fit into the recessed part and a second region that is in contact with the first surface of the first substrate. A normal direction of the second radiating element is different from a normal direction of the first radiating element.
(Second aspect) In the antenna module according to the first aspect, the second substrate includes a connection electrode that is disposed in the second region and allows electrical connection with the first substrate. A high frequency signal is transmitted via the connection electrode to the second radiating element.
(Third aspect) In the antenna module according to the first or second aspect, in a case where the antenna module is seen in a plan view from a normal direction of the first substrate, at least part of the second substrate projects outward relative to an outermost peripheral end portion of the first substrate.
(Fourth aspect) In the antenna module according to any one of the first to third aspects, the second substrate projects out in a normal direction of the first substrate from the first surface.
(Fifth aspect) In the antenna module according to the fourth aspect, the second substrate projects out in the normal direction of the first substrate from the second surface.
(Sixth aspect) In the antenna module according to any one of the first to fifth aspects, the recessed part is formed up to a side surface of the first substrate.
(Seventh aspect) In the antenna module according to any one of the first to sixth aspects, the normal direction of the second radiating element is orthogonal to the normal direction of the first radiating element.
(Eighth aspect) In the antenna module according to any one of the first to sixth aspects, an angle formed between the normal direction of the second radiating element and the normal direction of the first radiating element is larger than 90 degrees and smaller than 180 degrees.
(Ninth aspect) The antenna module according to any one of the first to eighth aspects further includes a first ground electrode that is disposed between the first surface and the first radiating element at the first substrate and a second ground electrode that is disposed opposite the second radiating element at the second substrate.
(Tenth aspect) In the antenna module according to any one of the first to ninth aspects, each of the first radiating element and the second radiating element is capable of radiating radio waves polarized in different two directions.
(Eleventh aspect) In the antenna module according to any one of the first to tenth aspects, the first radiating element includes a first element capable of radiating a radio wave in a first frequency range and a second element capable of radiating a radio wave in a second frequency range lower than the frequency range of the radio wave radiated from the first element, the first element and the second element being disposed opposite each other.
(Twelfth aspect) In the antenna module according to any one of the first to eleventh aspects, the second radiating element includes a third element capable of radiating a radio wave in a third frequency range and a fourth element capable of radiating a radio wave in a fourth frequency range lower than the frequency range of the radio wave radiated from the third element, the third element and the fourth element being disposed opposite each other.
(Thirteenth aspect) The antenna module according to any one of the first to twelfth aspects further includes a power feed device that supplies a high frequency signal to the first radiating element and the second radiating element.
(Fourteenth aspect) In the antenna module according to the thirteenth aspect, the power feed device is disposed on the first surface.
(Fifteenth aspect) The antenna module according to the first aspect further includes a power feed device and a power feed wire. The power feed device supplies a high frequency signal to the first radiating element and the second radiating element. The power feed wire allows a high frequency signal to be transmitted from the power feed device to the second radiating element. The second substrate includes a connection electrode that is disposed in the second region and allows electrical connection with the first substrate. The power feed wire passes through the first substrate and is connected via the connection electrode to the second radiating element.
(Sixteenth aspect) The antenna module according to any one of the first to fifteenth aspects further includes a third substrate at which a third radiating element with a flat plate shape is disposed. The third substrate is disposed adjacent to the second substrate in a first direction. A normal direction of the third radiating element is the same as the normal direction of the second radiating element.
(Seventeenth aspect) The antenna module according to the sixteenth aspect further includes a fourth radiating element with a flat plate shape that is disposed adjacent to the first radiating element in the first direction at the first substrate.
(Eighteenth aspect) In the antenna module according to any one of the first to seventeenth aspects, in a case where a direction that is orthogonal to a direction going from the first region toward the first radiating element and is along the first surface is defined as a second direction, the second region extends from the first region toward the second direction.
(Nineteenth aspect) In the antenna module according to any one of the first to seventeenth aspects, the second region extends in a third direction going from the first region toward the first radiating element.
(Twentieth aspect) The antenna module according to any one of the first to nineteenth aspects further includes a connector that is disposed on the first surface and electrically connects to an external apparatus.
(Twenty-first aspect) A communication apparatus provided with the antenna module according to any one of the first to twentieth aspects.
The exemplary embodiments disclosed herein are to be considered in all respects to be illustrative and not restrictive. The scope of the present disclosure is defined by the claims, rather than the exemplary embodiments described above, and is intended to include all modifications within the meaning and scope equivalent to the scope of the claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2022-073406 | Apr 2022 | JP | national |
The present application is a continuation application of PCT International Application No. PCT/JP2023/005375 filed on Feb. 16, 2023, designating the United States of America, which is based on and claims priority to Japanese patent application JP 2022-073406, filed Apr. 27, 2022. The entire disclosures of the above-identified applications, including the specifications, the drawings, and the claims are incorporated herein by reference in their entirety.
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/JP2023/005375 | Feb 2023 | WO |
| Child | 18918133 | US |
