GaAs Balanced Amplifier for Ka-Band Space Communications System

L. Pantoli, A. Barigelli, G. Leuzzi, F. Vitulli, A. Suriani
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Abstract

The paper deals with the development of a state-of-the-art medium level amplifier able to combine good noise performance with a high P1dB compression point. The MMIC is realized with a balanced structure and making use of the PH25 GaAs pHEMT process provided by UMS. The balanced structure allows to achieve a gain of 19 dB with a P1dB compression point greater than 15 dBm and a noise figure of about 3 dB in a large bandwidth spanning from 26.5 GHz to 31.5 GHz. The chip has a single bias pad; the input and output bond wires are directly matched on chip, so easingenhancing the mechanical integration in the front-end.
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ka波段空间通信系统中的砷化镓平衡放大器
本文讨论了一种能够将良好的噪声性能与高P1dB压缩点相结合的最先进的中电平放大器的开发。MMIC采用平衡结构,利用UMS提供的PH25 GaAs pHEMT工艺实现。在26.5 GHz至31.5 GHz的大带宽范围内,平衡结构允许实现19 dB的增益,P1dB压缩点大于15 dBm,噪声系数约为3 dB。该芯片具有单个偏置垫;输入输出键合线直接在芯片上匹配,增强了前端的机械集成度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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