The present invention relates to the field of communication technology, and more particularly to an antenna system and an electronic device.
The fifth-generation mobile communication technology (5G) may include the Sub 6G and the millimeter wave (mm Wave). As the next generation of mobile communication network, the 5G network has a transmission speed significantly higher than the current 4G network, and has gradually become the development trend all over the world. How to add 5G antennas in current mobile phones is one of the main difficulties nowadays.
Multiple-Input Multiple-Output (MIMO) technology means that multiple transmitting antennas and multiple receiving antennas are respectively arranged at the transmitting end and the receiving end such that signals may be transmitted through the antennas at the transmitting end and the receiving end to improve communication quality. In this way, space resources can be fully used. By using multiple antennas for transmitting and receiving, capacity of system signal channels may be largely augmented without increasing frequency band resources or antenna transmitting power.
In order to add 5G function to current 4G antennas while keeping them to meet 4*4MIMO, it is required to add an antenna operating in the 3.4-3.8 GHz frequency band of Sub 6G to current antennas.
Therefore, a new antenna system and a new electronic device are required in order to solve the above problems.
In order to clearly explain the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. Obviously, the drawings in the following description are merely some embodiments of the present invention. For those of ordinary skill in the art, other drawings may also be obtained based on these drawings without any creative work.
The disclosure will now be described in detail with reference to the accompanying drawings and examples. Apparently, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
Referring to
The cell phone may include a metal base plate which is usually used as the system grounding unit 1 and for supporting the display screen (not shown) of the cell phone. The system grounding unit 1 is usually set to overlap the mainboard 3.
The metal frame 2 and the system grounding unit 1 may be spaced apart to form a clearance zone 8. The metal frame 2 may be connected to the system grounding unit 1 through a connecting rib 9. The metal frame 2 is usually arranged at two ends of the cell phone along the longer axis of the cell phone.
The main board 3 may include a feeding point 31. The metal frame 2 may include a first connecting part 21 connected to the second radiator 4 and a second connecting part 22 connected to the feeding point 31 via the main matching circuit 7.
The second radiator 4 may have an elongated configuration. The first connecting part 21 and the switch 5 may be connected to two opposite longer sides of the second radiator 4. The capacitor 6 may be connected to an end of the second radiator 4 along a length direction of the second radiator 4. The antenna system 100 may further include a plastic support 10 located in the clearance zone 8. The second radiator 4 may be arranged on the plastic support 10. In some embodiments of the present invention, the second radiator 4 may be formed on the surface of the plastic support 10 through a laser direct structuring (LDS) or FPC process.
The capacitor 6 may be a low resistance capacitor. One end of the capacitor 6 may be connected to the second radiator 4. The other end of the capacitor 6 may be connected to the main matching circuit 7. The capacitor 6 may be utilized to isolate 4G and 5G radio frequency signals from each other. The second radiator 4 may be connected to the main board 3 via the switch 5.
Referring also to
The present invention further provides an electronic device (not shown). The electronic device may include the above-described antenna system 100.
Compared with related art, the implementation of the present invention may put a Sub 6G antenna and a 4G antenna together without increasing the number of antennas. Since it is not necessary to increase the number of antenna feeding points, environment change, higher clearance requirement and even ID change due to augmentation of antennas may be avoided.
It should be noted that, the above are merely embodiments of the present invention, and further modifications can be made for those skilled in the art without departing from the inventive concept of the present invention. However, all these modifications shall fall into the protection scope of the present invention.
Number | Date | Country | Kind |
---|---|---|---|
201811581112.5 | Dec 2018 | CN | national |
Number | Name | Date | Kind |
---|---|---|---|
9608314 | Kwon | Mar 2017 | B1 |
10177443 | Xue | Jan 2019 | B2 |
20150022403 | Lin | Jan 2015 | A1 |
20150155614 | Youn | Jun 2015 | A1 |
20160315651 | Hong | Oct 2016 | A1 |
20170244151 | Han | Aug 2017 | A1 |
20180183137 | Tsai | Jun 2018 | A1 |
20180248252 | Hu | Aug 2018 | A1 |
20180331416 | Yu | Nov 2018 | A1 |
20180366812 | Kim | Dec 2018 | A1 |
20190081694 | Zhou | Mar 2019 | A1 |
20200044311 | Gu | Feb 2020 | A1 |
20200044315 | Gu | Feb 2020 | A1 |
20200044346 | Gu | Feb 2020 | A1 |
20200058993 | Qiu | Feb 2020 | A1 |
Number | Date | Country | |
---|---|---|---|
20200203805 A1 | Jun 2020 | US |