Low-power-consumption low-noise broadband amplifier

A low-noise, amplifier technology, applied in the field of low-power and low-noise broadband amplifiers, can solve problems such as large insertion loss, failure to meet existing applications, deterioration of noise figure and output linearity indicators, etc.

Active Publication Date: 2022-05-31
CHENGDU GANIDE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the insertion loss of the Lange bridge or 90-degree balun introduced by this structure is relatively large, which leads to deterioration of the noise figure and output linearity indicators, so it cannot meet the existing applications.

Method used

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Embodiment Construction

[0029] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0030] Such as figure 1 As shown, the present invention provides a low-power low-noise broadband amplifier, including an input turn-off matching network, a negative feedback double stack current multiplexing amplifying network, an output turn-off matching network, a switch control circuit and an enable control circuit;

[0031] The first input terminal of the input-off matching network is used as the input terminal of the low-power low-noise broadband amplifier, and its first input terminal is connected with the output terminal of the switch control circuit, and its output terminal is connected with the negative feedback dual stack current multiplexing amplifying network. the first input terminal is connected;

[0032] The output terminal of the output-off matching network is used as the input terminal of the low-power low-noise broadband amplifier, and...

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Abstract

The invention discloses a low-power-consumption low-noise broadband amplifier, which belongs to the technical field of integrated circuits and comprises an input turn-off matching network, a negative feedback dual-stack current multiplexing amplification network, an output turn-off matching network, a switch control circuit and an enable control circuit. According to the negative feedback double-stacked current multiplexing amplification network, an input and output turn-off matching architecture is combined, so that an amplifier has an enabling turn-off function, and low noise, high linearity, high gain and broadband characteristics and good on-state standing wave characteristics in a low power consumption mode can be realized in an on state; and when the amplifier is turned off, the amplifier still keeps good turn-off standing wave characteristics.

Description

technical field [0001] The invention belongs to the technical field of integrated circuits, and in particular relates to a low-power and low-noise broadband amplifier. Background technique [0002] With the rapid development of ultra-wideband communication, wireless local area network (WLAN) and civil communication markets, RF front-end receivers are also developing in the direction of high performance, high integration, and low power consumption. Therefore, the market urgently needs ultra-wideband, high gain, high linearity, low power consumption, and low noise RF and microwave low noise amplifier chips. At the same time, because wireless communication mostly uses TDD control signals, it is urgently required that the amplifier chip has an enable switch function, and the switching speed is required to be within 100nS. When the TDD control system is working, when the amplifier is turned off, the system often requires the input and output standing waves of the amplifier chip ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F1/26H03F1/32H03F1/42H03F1/56H03F3/195
CPCH03F1/26H03F1/32H03F1/42H03F1/565H03F3/195Y02D30/70
Inventor 邬海峰童伟王测天杨聪聪刘莹滑育楠廖学介吴曦
Owner CHENGDU GANIDE TECH
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