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High-flatness broadband amplifier

A flatness and amplifier technology, used in high-frequency amplifiers, power amplifiers, amplifier combinations, etc., can solve problems such as poor flatness, and achieve the effect of flatness optimization and convenient flatness characteristics.

Inactive Publication Date: 2017-07-07
NO 24 RES INST OF CETC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a high-flatness broadband amplifier to solve the problem of poor flatness existing in the current broadband amplifier

Method used

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Embodiment Construction

[0028] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the following describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings For further detailed explanation.

[0029] In the description of the present invention, unless otherwise specified and limited, it should be noted that the term "connection" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be Directly connected or indirectly connected through an intermediary, those skilled in the art can understand the specific meanings of the above terms according to specific situations.

[0030] see figure 1 , is a ...

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Abstract

The invention provides a high-flatness broadband amplifier, comprising a distributed amplifier and a feedback compensation circuit. One end of each feedback compensation branch in the feedback compensation circuit is connected with a control end of a corresponding transistor in the distributed amplifier, and the other end is grounded. The feedback compensation branches access impedances of corresponding values to the control ends of the corresponding transistors, so parasitic parameters of the transistors are variable parameters. The parasitic parameters cause cut-off frequencies of artificial transmission lines to be changed along with the change of input signal frequencies, so the flatness of the distributed amplifier is optimized.

Description

technical field [0001] The invention belongs to the field of broadband amplifiers, in particular to a high-flatness broadband amplifier that can be directly applied to microwave microcontrollers. Background technique [0002] The broadband amplifier can amplify radio frequency signals in a wide frequency band. As a key component of the transceiver, the performance of the broadband amplifier has a decisive impact on the performance of the microwave system. The application of broadband amplifiers can greatly reduce system size and power consumption, and meet the needs of multi-octave broadband amplification components in modern communications and engineering fields. It has been widely used in countermeasure systems. [0003] The circuit topology for implementing broadband amplifiers generally includes distributed amplifiers, dual-input cascode common-source amplifiers, feedback Darlington amplifiers, balanced amplifiers, lossy matching amplifiers, etc., because the distribute...

Claims

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Application Information

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IPC IPC(8): H03F1/56H03F3/19H03F3/24H03F3/68
Inventor 刘成鹏蒲颜王国强邹伟
Owner NO 24 RES INST OF CETC
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