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RF front-end circuits and terminals

A radio frequency front-end, circuit technology, used in circuits, electrical components, antennas, etc.

Active Publication Date: 2022-03-18
YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The radio frequency front-end circuit and terminal provided by the embodiment of the present application can solve the problem of relatively large interference between multiple antennas set in the terminal in the related art

Method used

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  • RF front-end circuits and terminals

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] see figure 1 , the present invention provides a schematic diagram of a radio frequency front-end circuit of an embodiment. The radio frequency front-end circuit includes: a radio frequency circuit 1, a main antenna 2, an antenna trace 61 to an antenna trace 6M, an antenna matching network 51 to an antenna matching network 5N, and an antenna switch 4 and controller 3, M≤N, figure 1 Take M=N as an example for illustration. The main antenna 2 is provided...

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Abstract

The embodiment of the present application discloses a radio frequency front-end circuit and a terminal, which relate to the communication field. The terminal is equipped with a main antenna and multiple antenna lines. Multiple antenna lines can have a coupling effect with the main antenna to achieve different operating frequencies and polarization directions. The main antenna and multiple antenna lines are controlled by a single-pole multi-throw switch. One of the antennas in the line is coupled to adjust and change the operating frequency and polarization direction of the main antenna, so that the main antenna can be applied to different application scenarios, realize the multiplexing of different types of antennas, and solve the problem of setting multiple different antennas in related technologies. An antenna with a working frequency brings about a small clearance area inside the terminal.

Description

technical field [0001] The invention relates to the communication field, in particular to a radio frequency front-end circuit and a terminal. Background technique [0002] With the increase of mobile phone functions, the number of antennas installed in mobile phones is increasing. For example, mobile phones are equipped with different radio frequency antennas according to different application scenarios, such as Bluetooth antennas, NFC (Near Field Communication, near field communication) antennas , GPS (Global Positioning System, global positioning system) antenna, WLAN (Wireless Local Area Network, wireless local area network) antenna and voice / data communication antenna, etc., different antennas transmit radio frequency signals of different frequencies. In related technologies, in order to transmit radio frequency signals of multiple frequencies, multiple antennas need to be installed in the mobile phone. Since the current mobile phones are increasingly thinner and thinner...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/24H01Q23/00H04B1/40
CPCH01Q1/242H01Q23/00H04B1/40
Inventor 李合成
Owner YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD