Approaches for Improving LO-RF Isolation of MMIC 90°-hybrid-IRM

摘要：

Image Reject Mixer (IRM) is one of common devices usedInmicrowave receivers.A classical structure is IQ output single balanced schottky diode mixer using 90° hybrid. Its widely usedInmany engineering areas. The advantages of this structure are high-dynamic range capability,good VSWRs and suppression of noises. But the disadvantage caused by this structure is poor LO-RF isolation.This paper gives some methods to improve the LO-RF isolation of MMIC IQ output single balanced schottky diode mixer and analyses the influence on the other performances. It also gives a simulative and experimental result of MMIC Ka-band mixer design using these methods.

作者: SHEN Yiming PENG Longxin

作者单位: National Key Laboratory of Monolithic Integrated Circuits & Modules,Nanjing Electronic Device Institute,P.R.China

会议类型: 国际会议

会议名称: 2008 International Conference on Microwave and Millimeter Wave Technology(2008国际微波毫米波技术会议)

会议地点: 南京

会议语种:英文

页码: 566-569

在线出版日期: 2008-04-21（万方平台首次上网日期，不代表论文的发表时间）