本文简要介绍采用微波混合集成电路技术的MW—2G—120型微波接收机高频单元的设计制作。其主要技术指标达到:G=45±1dB,F≤3.5dB,镜象抑制度L≥18dB,输出端反射损耗≥34dB。其性能指标相当于国外80年代初的水平。已制作的十二套高频率单元指标测试结果和建站连续使用情况表明:高频单元性能一致性好,工作稳定,可靠性高,使用方便,可批量生产。 This article briefly introduces the design and manufacture of MW-2G-120 microwave receiver high frequency unit using microwave hybrid integrated circuit technology. Its main technical indicators to achieve: G = 45 ± 1dB, F ≤ 3.5dB, image suppression L ≥ 18dB, the output reflection loss ≥ 34dB. Its performance is equivalent to the level of foreign early 80s. Twelve sets of high-frequency unit index test results and continuous use of the station have been made to show that the high frequency unit has good performance consistency, stable operation, high reliability, convenient use and mass production.