南京理工大学学报（自然科学版）2025，Vol.49Issue(5)：625-630,6.DOI:10.14177/j.cnki.32-1397n.2025.49.05.011
基于混合传输线的X波段全隔离功率合成网络
X-band fully isolated power combiner network based on hybrid transmission lines
摘要
Abstract
A four-channel fully isolated X-band power combiner network based on a hybrid architecture of microstrip line(MSL)and air-filled substrate integrated waveguide(AFSIW)is proposed.This power combiner network achieves high power capacity while maintaining a low-profile structure and compact layout.The input network employs three cascaded microstrip(MS)3-dB directional couplers to form four power dividers,achieving broadband impedance matching through asymmetric transmission line optimization.The output network is constructed based on SIW 3-dB directional couplers,utilizing the field constraint characteristics of the TE10 mode to achieve four-port full isolation.To further enhance performance,this study adopts an X-band four-channel fully isolated power combiner network.This power combiner network uses AFSIW structure directional couplers instead of SIW directional couplers and uses metal structural components to shield the air cavity,achieving lower losses and better heat dissipation performance than the MS-SIW architecture power combination network.The measured results show that the bandwidth range of the proposed power synthesizer is 8.8 to 11.3 GHz,and the isolation among its four-channels is better than 15 dB in the working band.The overall return loss is better than 15 dB in the range of 9.2 to 10.4 GHz,and better than 10 dB in the range of 8.6 to 11.3 GHz.The minimum insertion loss is 1.9 dB,and the power capacity is 23.303 kW.关键词
混合传输线/空气填充基片集成波导/功率合成网络/平面定向耦合器/全隔离功率合成网络Key words
hybrid transmission line/air-filled substrate integrated waveguide/power combiner network/planar directional coupler/fully isolated power combiner network分类
信息技术与安全科学引用本文复制引用
褚继阳,王翔,陈天翔,张金栋,胡俊,李黄炎,司马博羽,吴文..基于混合传输线的X波段全隔离功率合成网络[J].南京理工大学学报（自然科学版）,2025,49(5):625-630,6.基金项目
国家自然科学基金(62201262 （）
62301256 （）
62471229) （）
中央高校基本科研业务费专项资金(30924010912 （）
30925010512) （）
