Study of Wideband Microstrip 90°3-dB Two-Branch Coupler with Minimum Amplitude and Phase Imbalance

摘要：

The properties,especially the phase properties,of a wideband microstrip coupler with very fiat coupling are simulated,measured and analyzed. Then a modified wideband microstrip 90° 3-dB two-branch coupler with fiat amplitude response,low insertion loss,small amplitude imbalance and phase imbalance is proposed.This wideband coupler can be used to design wideband correlators. By tuning and optimizing the matching network at each output of a normal two-branch coupler according to both magnitude and phase properties,the relative bandwidth ofThis modified coupler with the minimum amplitude and phase imbalance can reach 50％,with frequency range of 3-5 GHz.

作者: Duxiang Wang Allan Huynh P(a)r H(a)kansson Ming Li Shaofang Gong

作者单位: Nanjing Electronic Equipment Institute,P.O.Box 1610,Nanjing,210007 Jiangsu,P.R.China Link(o)ping Uni Link(o)ping University,Department of Science and Technology,SE-60174 Norrk(o)ping,Sweden Nanjing Electronic Equipment Institute,P.O.Box 1610,Nanjing,210007 Jiangsu,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: 116-119

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）