A UWB Drive Amplifier Circuit

An amplifier circuit and ultra-wideband technology, applied in the field of ultra-wideband drive amplifier circuits, can solve problems such as unsatisfactory linear output power and efficiency, low gain, and no temperature compensation effect, and achieve suppression of intermodulation signals and harmonic components, Effect of reduced circuit area and high gain

Active Publication Date: 2022-01-04
CHENGDU GANIDE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned deficiencies in the prior art, the ultra-wideband drive amplifier circuit provided by the present invention solves the problems of low gain, unsatisfactory linear output power and efficiency, and no temperature compensation effect in the traditional broadband drive amplifier circuit

Method used

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  • A UWB Drive Amplifier Circuit

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Experimental program
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Embodiment 1

[0037] Such as figure 1 As shown, an ultra-broadband drive amplifier circuit includes a first active bias network, a second active bias network, a current multiplexing network, an improved traveling wave network, and an output matching network;

[0038] The input terminal of the first active bias network is connected to the first power supply, and the first output terminal, the second output terminal and the third output terminal of the first active bias network are respectively connected to the first input terminal and the second output terminal of the current multiplexing network. The two input terminals and the third input terminal are connected in one-to-one correspondence, the output terminal of the current multiplexing network is connected with the first input terminal of the improved traveling wave network; the input terminal of the second active bias network is connected with the second power supply, and the second The first output end and the second output end of the ...

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Abstract

The invention discloses an ultra-broadband drive amplifier circuit, wherein the input end of the first active bias network is connected to the first power supply, the first output end, the second output end and the third active bias network The output terminals are respectively connected to the first input terminal, the second input terminal and the third input terminal of the current multiplexing network in one-to-one correspondence, and the output terminal of the current multiplexing network is connected to the first input terminal of the improved traveling wave network; the second has The input terminal of the source bias network is connected to the second power supply, and the first output terminal and the second output terminal of the second active bias network correspond to the second input terminal and the third input terminal of the improved traveling wave network respectively. The output of the improved traveling wave network is connected to the input of the output matching network. The circuit of the invention has ultra-broadband characteristics and temperature compensation effect, and can realize higher gain, higher linear output power and higher efficiency.

Description

technical field [0001] The invention belongs to the technical field of amplifier circuit design, and in particular relates to an ultra-wideband drive amplifier circuit. Background technique [0002] Ultra-wideband microwave amplifiers are mainly used in broadband communication systems such as electronic monitoring and countermeasures, radar, optical fiber and instrumentation systems, all of which require multi-octave frequency amplifiers. Designing an amplifier with a relative bandwidth greater than 50% is a very difficult task. [0003] In a communication system, the signal usually has a certain bandwidth. If the total power is close to the 1dB compression point, the nonlinearity of the amplifier will become more obvious, and stronger harmonics and intermodulation products will be generated, which will cause damage to adjacent bands or within the band. interference. Therefore, nonlinear distortion is a very important consideration in amplifier design. It is even more cha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03F1/02H03F1/32H03F1/48H03F3/193
Inventor 叶珍吕继平刘莹滑育楠廖学介王测天邬海峰童伟
Owner CHENGDU GANIDE TECH
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