【摘要】 本文采用插指电容新结构设计了一个Ku波段低温低噪声放大器(LNA),并通过优化的封装工艺制备了放大器样品,分析了隔离器对LNA性能的影响.在77K温度下测试结果表明,放大器增益约10dB,噪声系数小于2.0dB,反射系数小于-17dB.更多还原

【Abstract】 In this paper we present a new design of Ku-band cryogenic low-noise amplifier(LNA) using interdigital capacitance microstrip structure and improved encapsulation technology.The influence of isolators to LNA is analysed.At ambient temperature about 77K,LNA achieves performance that noise factor is less than 2.0dB,reflection coefficient is less than-17dB and gain is about 10dB.更多还原