A power amplifier circuit and power amplifier box

A power amplification circuit and amplifier technology, applied in electrical components, transmission systems, etc., can solve problems such as unstable data transmission, insufficient output power, insufficient receiving gain, etc., and achieve the effects of light weight, simple structure, and convenient use

Active Publication Date: 2019-11-08
成都大奇鹰科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the small-sized power amplifiers for 2.412G to 2.462GHz in the domestic market currently have problems such as insufficient amplification gain, insufficient output power, insufficient receiving gain, and unstable data transmission.

Method used

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  • A power amplifier circuit and power amplifier box
  • A power amplifier circuit and power amplifier box
  • A power amplifier circuit and power amplifier box

Examples

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Embodiment Construction

[0026] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0027] Any feature disclosed in this specification (including any appended claims, abstract), unless otherwise stated, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0028] Such as figure 1 As shown, the present invention describes a power amplifying circuit, which at least includes a coupler, a detector, a comparator, a receiving channel, a first switching switch and a second switching switch of a transmitting channel. The coupler couples the port signal of the first radio frequency interface of the power amplifying circuit, and outputs the coupled signal. The wave detector processes the coupling signal, and outputs a DC dete...

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PUM

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Abstract

The invention discloses a power amplification circuit and a power amplification box. A coupler is coupled with a port signal of a first radio frequency interface of the power amplification circuit and outputs a coupling signal; a detector processes the coupling signal and outputs a DC detection signal corresponding to the power of the coupling signal; a comparator compares the DC detection signal and a reference signal and outputs two ways of complementary pulse switching control signals to respectively control the switching conditions of a first change-over switch and a second change-over switch to start a receiving channel or a transmitting channel in order to make the power amplification circuit receive or transmit the radio frequency signal through a second radio frequency interface. The power amplification circuit and the power amplification box have a bidirectional receiving and transmitting function, integrate radio frequency transmission and radio frequency reception and have the advantages of high amplification precision, simple structure, convenience for use and the like, and can be used as amplifiers within the frequency band range of 2.412-2.462 G for amplifying signals of 5-28 dBm.

Description

technical field [0001] The invention relates to the field of power amplification, in particular to a power amplification circuit and a power amplification box with bidirectional transceiver functions. Background technique [0002] Radio Frequency Power Amplifiers (RF PAs) are an essential part of any wireless transmitter. In the pre-stage circuit of the transmitter, the RF signal power generated by the modulating oscillator circuit is very small, and it needs to go through a series of amplification-buffer stage, intermediate amplification stage, and final power amplification stage to obtain sufficient RF power before feeding radiate to the antenna. In order to obtain a sufficiently large radio frequency output power, a radio frequency power amplifier must be used. In addition, the small-sized power amplifiers for 2.412G-2.462GHz in the domestic market currently have problems such as insufficient amplification gain, insufficient output power, insufficient receiving gain, an...

Claims

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Application Information

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IPC IPC(8): H04B1/401
CPCH04B1/401
Inventor 苟海军
Owner 成都大奇鹰科技有限公司
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