A 0.3–28-GHz Frequency Range, 1.2-dB Noise Figure, Cascode Distributed LNA With Wide Temperature Range for Satellite Communications

0 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE microwave and wireless technology letters Pub Date : 2024-11-05 DOI:10.1109/LMWT.2024.3485217

Xiaodong Han;Qiangji Wang;Zhongliang Li;Weibin Qin;Jiawen Wang;Haonan Fan;Guanda Wang;Wangchen Fan;Zhichao Xu;Wenbin Wang;Weifeng Sun;Zhongyuan Fang

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Abstract

A broadband cascode distributed low-noise amplifier (CDLNA) with a wide operating temperature range is proposed in this work. A series of diodes are used as bias networks to achieve temperature compensation. To enhance the gain level in the passband, the negative resistance network is employed to offset drain transmission line losses. An attenuator based on reverse-biased diodes and resistors is designed to improve stability across the wideband. The circuit is implemented using a 0.15-

$\mu $

m GaAs pHEMT process with a chip area of

$2.6\times 1.55$

mm2. Test results show that the CDLNA achieves an average gain of 17.5 dB, a linearity index OP1 dB of 14.0 dBm, a minimum noise figure (NF) of 1.2 dB, and an operating frequency range of 0.3–28 GHz. The operating temperature range is -55 °C to 85 °C, within which the gain variation is less than 742 ppm/°C, and the NF variation is less than 2667 ppm/°C

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一种频率范围为0.3 ~ 28ghz，噪声系数为1.2 db，宽温度范围的Cascode分布式LNA卫星通信

提出了一种宽工作温度范围的宽带级联码分布式低噪声放大器。采用一系列二极管作为偏置网络来实现温度补偿。为了提高通带的增益水平，采用负电阻网络来抵消漏极传输线的损耗。设计了一种基于反向偏置二极管和电阻的衰减器，以提高整个宽带的稳定性。该电路采用0.15- $ $ mu $ m的GaAs pHEMT工艺实现，芯片面积为$2.6 × 1.55$ mm2。测试结果表明，CDLNA的平均增益为17.5 dB，线性指数OP1 dB为14.0 dBm，最小噪声系数（NF）为1.2 dB，工作频率范围为0.3 ~ 28 GHz。工作温度范围为-55℃~ 85℃，在此范围内，增益变化小于742 ppm/℃，NF变化小于2667 ppm/℃

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来源期刊

IEEE microwave and wireless technology letters

CiteScore

6.00

自引率

0.00%

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