Radio frequency circuit and antenna tuning circuit

A radio frequency circuit and circuit technology, applied in the direction of electrical components, transmission systems, etc., can solve the problem of low efficiency of radio frequency burr elimination

Inactive Publication Date: 2020-07-28
FIBOCOM WIRELESS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on this, it is necessary to provide a radio frequency circuit and an antenna tuning circui

Method used

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  • Radio frequency circuit and antenna tuning circuit
  • Radio frequency circuit and antenna tuning circuit
  • Radio frequency circuit and antenna tuning circuit

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Embodiment Construction

[0041] In order to make the purpose, technical solution and advantages of the present application clearer, a radio frequency circuit and an antenna tuning circuit of the present application will be further described in detail through the following embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.

[0042] The serial numbers assigned to components in this document, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. The "connection" and "connection" mentioned in this application all include direct and indirect connection (connection) unless otherwise specified. In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The o...

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Abstract

The invention relates to a radio frequency circuit and an antenna tuning circuit. The radio frequency circuit comprises a radio frequency transceiver, a voltage regulating circuit, an inductor and anadjustable capacitor. The first end of the inductor is electrically connected with the first output end of the radio frequency transceiver, and the input end of the voltage regulating circuit is electrically connected with the second output end of the radio frequency transceiver and used for controlling the voltage regulating circuit to work. The first end of the adjustable capacitor is electrically connected with the second end of the inductor and the output end of the voltage adjusting circuit, and the second end of the adjustable capacitor is grounded. According to the radio frequency circuit provided by the embodiment of the invention, the capacitor and the inductor do not need to be replaced again when radio frequency burrs are eliminated, the technical problem of low elimination efficiency of the existing radio frequency circuit for the radio frequency burrs is solved, and the technical effect of improving the elimination efficiency of the radio frequency circuit for the radio frequency burrs is achieved.

Description

technical field [0001] The present application relates to the technical field of electronic circuits, in particular to a radio frequency circuit and an antenna tuning circuit. Background technique [0002] At present, radio frequency circuits are widely used in various communication equipment and electronic products. Some out-of-band interference waves or harmonics often appear in radio frequency circuits. The out-of-band interference waves may be interference waves in a certain frequency band, or they may be in a certain frequency point. RF glitch. At present, most of the interference waves in radio frequency circuits are suppressed by filters. For radio frequency glitches, it is necessary to adjust the inductance and capacitance values ​​in the filter circuit to the frequency point of the radio frequency glitches, so as to achieve the purpose of eliminating radio frequency glitches. Because the frequency points of radio frequency glitches in different circuits are not the...

Claims

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Application Information

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IPC IPC(8): H04B1/40H04B1/04H04B1/10
CPCH04B1/0475H04B1/1036H04B1/40
Inventor 肖德泉
Owner FIBOCOM WIRELESS
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