Miniaturized diplexer with wide-stopband based on half-mode substrate integrated waveguide

• Published in: Frontiers of information technology & electronic engineering Vol. 26; no. 7; pp. 1237 - 1242
• Main Authors: Zhou, Ziyu, Dong, Gang, Lei, Xinqing, Zhu, Zhangming
• Format: Journal Article
• Language: English
• Published: Hangzhou Zhejiang University Press 01.07.2025; Springer Nature B.V
• Subjects: Communications Engineering; Computer Hardware; Computer Science; Computer Systems Organization and Communication Networks; Correspondence; Diplexers; Electrical Engineering; Electronics and Microelectronics; Instrumentation; Networks; Substrate integrated waveguides; 基片集成波导; 双工器; 本征模抑制技术; 宽阻带; 半模; 小型化
• ISSN: 2095-9184; 2095-9230
• DOI: 10.1631/FITEE.2400944

摘要基于半模基片集成波导(HMSIW),提出一种宽阻带小型化双工器。该双工器将双模谐振器(DMR)与单模谐振器(SMR)相结合。采用HMSIW技术突破了SMR在小型化方面的限制,同时有效解决了SMR中常见的TE202模式对宽阻带性能的限制。采用TE101/TE301 DMR设计并制造了一个二阶原型,原型的中心频率分别为10.34 GHz和13.90 GHz。测量结果显示,该双工器的阻带范围为2.16f1(f1是通道1的中心频率),具有优于20 dB的带外抑制水平。与此同时,该双工器的尺寸被显著缩小至1.363λg2(λg是f1时介质基底中的导波波长)。