A Millimeter Wave High-Isolation Diplexer Using Selectivity-Improved Dual-Mode Filters

被引：23

作者：

Duong, Tuan-Viet ^{[1
]}

Hong, Wei ^{[1
]}

Hao, Zhang-Cheng ^{[1
]}

Huang, Wei-Chen ^{[1
]}

Zhuang, Jian-Xing ^{[1
]}

Vo, Van-Phuc ^{[2
]}

机构：

[1] Southeast Univ, Sch Informat Sci & Engn, State Key Lab Millimeter Waves, Nanjing 210096, Jiangsu, Peoples R China

[2] Millitary Acad Sci & Technol, Hanoi, Vietnam

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2016年 / 26卷 / 02期

关键词：

Circular cavity; diplexer; dual-mode; filter; perturbation; transmission zero (TZ); CAVITIES;

D O I：

10.1109/LMWC.2016.2517135

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This letter presents an alternative method to realize millimeter wave waveguide diplexers based on high selectivity bandpass filters. A small perturbation is implemented in a dualmode circular cavity to expand the bandwidth and significantly enhance the selectivity of the channel filter. The location of a transmission zero can be easily adjusted by properly changing the angle of a perturbing notch etched at sidewall of the cavity. A V-band diplexer prototype has been fabricated and tested. The experiment results showed good agreement with simulation results. The designed diplexer has the advantages of simple design process, quasi-planar structure, high isolation, and improved selectivity without any additional mechanical tuning element.

引用

页码：104 / 106

页数：3

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