Low-cost linear power amplifier

A linear power and amplifier technology, which is applied to power amplifiers, amplifiers, improved amplifiers to improve efficiency, etc., can solve problems such as thermal reliability risks, weak temperature compensation effect of feed network, temperature fluctuations of amplifiers and poor power dynamic fluctuation characteristics, etc.

Active Publication Date: 2022-05-31
CHENGDU GANIDE TECH
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  • Abstract
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Problems solved by technology

[0005] (2) Based on the traditional cascode amplifier scheme, in order to improve the single-stage power gain, the direct combination structure of the cascode amplifier can be used, but in order to improve the power capacity, this structure often needs to be designed with a multi-finger HBT transistor structure , but this approach will introduce a thermal reliability risk
[0006] (3) There are deficiencies in the temperatu

Method used

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  • Low-cost linear power amplifier
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Embodiment Construction

[0027] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0028] like figure 1 As shown, the present invention provides a low-cost linear power amplifier, including an input matching network, a cascode adaptive bias power supply network, a multi-channel cascode rectifier stacking cascode rectifier amplifier network and an output matching network ;

[0029] The input end of the input matching network is used as the input end of the low-cost linear power amplifier, and its output end is connected with the first input end of the multi-channel cascode rectifier stacking cascode rectifier and amplifying network;

[0030] The first output end of the output matching network is used as the output end of the low-cost linear power amplifier; The output terminal of the stacked common base emitter rectification and amplification network is connected;

[0031] The first output end of the cascode adaptive bias power sup...

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Abstract

The invention discloses a low-cost linear power amplifier, which belongs to the technical field of integrated circuits and comprises an input matching network, a common-emitter common-base adaptive bias power supply network, a multi-channel common-emitter base rectification stack common-emitter rectification amplification network and an output matching network. On the basis of the multi-path common-emitter base rectification stacking common-emitter rectification amplification network and in combination with the common-emitter common-base adaptive bias power supply network, the amplifier can adapt to temperature fluctuation and power dynamic fluctuation, and it is guaranteed that the common-emitter stacking common-base amplification circuit has a good wide dynamic linearity index and a low power consumption index; and moreover, the antenna has the characteristics of high gain, high linearity, high output power and high integration level.

Description

technical field [0001] The invention belongs to the technical field of integrated circuits, and in particular relates to a low-cost linear power amplifier. Background technique [0002] With the rapid development of wireless communication and wireless local area network (WLAN), RF front-end transmitters are also developing in the direction of high performance, high integration, low power consumption and low cost. Therefore, the market urgently needs linear power amplifier chips with high gain, high linearity, low power consumption and low cost. Due to the high power capacity and low cost of the GaAs HBT process, the research and development of linear power amplifier chips based on the GaAsHBT process has received extensive attention. [0003] The existing solutions based on HBT process linear amplifier chips have some deficiencies, mainly reflected in: [0004] (1) Based on the traditional common-emitter amplifier scheme, the scheme has a simple structure and low design co...

Claims

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Application Information

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IPC IPC(8): H03F1/30H03F1/32H03F1/56H03F1/02H03F3/24H03F3/195
CPCH03F1/302H03F1/32H03F1/565H03F1/0205H03F3/245H03F3/195Y02D30/70
Inventor 胡柳林王测天邬海峰童伟刘莹廖学介滑育楠石君
Owner CHENGDU GANIDE TECH
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