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Electronic equipment and radio frequency circuit thereof

A radio frequency circuit and circuit technology, applied in the field of radio frequency, can solve the problem of signal leakage in adjacent channels

Pending Publication Date: 2022-01-04
GEER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the signal is amplified after being modulated into a high-frequency signal, it is easy to cause the amplified signal to be outside the required range, causing the signal to leak in the adjacent channel

Method used

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  • Electronic equipment and radio frequency circuit thereof
  • Electronic equipment and radio frequency circuit thereof
  • Electronic equipment and radio frequency circuit thereof

Examples

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of this application.

[0032] The core of this application is to provide an electronic device and its radio frequency circuit, which is used to filter the baseband signal before the baseband signal is modulated into a high frequency signal by a radio frequency transceiver, so as to avoid part of the amplified signal being within the required bandwidth range In addition, it causes the problem of signal leakage in adjacent channels. In order to enable those skilled in the art to better u...

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Abstract

The invention discloses an electronic device and a radio frequency circuit thereof. The electronic device comprises a controller, a filter circuit, a radio frequency transceiver, a power amplifier and an antenna matching circuit; the input end of the filter circuit is connected with the output end of the controller, and the filter circuit is used for receiving a baseband signal and filtering the baseband signal; the output end of the filter circuit is connected with the input end of the radio frequency transceiver and used for sending filtered baseband signals to the radio frequency transceiver for modulation, and the input end and the output end of the power amplifier are connected with the output end of the radio frequency transceiver and the input end of the antenna matching circuit respectively; and the power amplifier is used for amplifying the power of the filtered baseband signal and carrying out antenna matching. Therefore, according to the radio frequency circuit provided by the invention, the baseband signal is filtered before the baseband signal is modulated into the high-frequency signal, so that the problem of leakage of the signal in an adjacent channel due to the fact that a part of the amplified signal is out of the required bandwidth range is avoided.

Description

technical field [0001] The present application relates to the field of radio frequency technology, in particular to an electronic device and a radio frequency circuit thereof. Background technique [0002] Modern communication technologies are becoming more and more diverse, such as Global Positioning System (Global Positioning System, GPS), Near Field Communication (Near Field Communication, NFC), etc. The same portable wearable device often needs to integrate multiple communication circuits, with multiple radio frequency module. However, in wireless communication, there are strict requirements on the interference of adjacent channels, that is to say, the frequency band of the modulated signal must be strictly controlled within its own channel, and it is not allowed to leak into adjacent channels. The current technology is to send the baseband signal to the radio frequency transceiver for modulation, and then perform antenna matching after modulation into a high frequency ...

Claims

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Application Information

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IPC IPC(8): H04B1/401H04B1/04H04B1/10H04B1/18
CPCH04B1/401H04B1/0057H04B1/0475H04B1/0458H04B1/10H04B1/18Y02D30/70
Inventor 隋金霞
Owner GEER TECH CO LTD
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