Novel Enhanced and Miniaturized 90°Coupler for 3G EH Mixers

摘要：

This paper reports the miniaturization of a microstrip 90 degree Coupler by substituting the quarter wave transmission lines employedInconventional 90 degree coupler with its equal circuits consisting of two oblique stubs and an inductor and capacitors. Reduction of the coupler to 27％ its size is reported here.This coupler is designed at 1070MHz for using in even harmonic mixers of 3G mobile receivers. Furthermore,the coupler can accurately divide the input signal by two parts with the same power and 90 degree phase difference. Also,the reflection coefficient and the isolation are as good as conventional one and coupling procedure is better than it.

作者: S.Shamsinejad M.Soleimani N.Komjani

作者单位: Electrical Engineering Department,Iran University of Science and Technology (IUST),Tehran,Iran

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: 1264-1267

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）