500～1000MHz微波镜象抑制混频组件的研制

500~1 000 MHz Microwave Image Rejection Mixer Assembly

介绍一种Ｌ波段微波镜象抑制混频组件的设计和制作．该组件采用先进的微带技术，选用贴片式平衡混频块，结构紧凑．在５００～１０００ＭＨｚ频率范围内，镜象抑制度小于-２６ｄＢ，噪声系数小于３ｄＢ．

This paper describes the design and fabrication of an L-band microwave image jection mixer assembly. The microstrip techniques are used. The new balanced mixer piecesare chosen. The structure of the assembly is compact. The assembly with image reaction ≤-26 dB and noise figure≤ 3 dB over 500~ 1 000 MHz band has been developed.