Compact and wide stopband E-plane waveguide diplexer design

被引：0

作者：

Alibakhshi M. ^{[1
]}

Bayderkhani R. ^{[2
]}

Afsahi M. ^{[1
]}

机构：

[1] Electrical & Computer Engineering Faculty, Semnan University, Semnan

[2] Department of Engineering, Islamic Azad University, Central Tehran Branch, Tehran

来源：

Bayderkhani, Reza (r.baidarkhani@iauctb.ac.ir) | 1600年 / Electromagnetics Academy卷 / 66期

关键词：

Center frequency - E-plane waveguide - High isolation - Periodic ridges - Propagating waves - Rectangular aperture - Rejection levels - Wide stopband;

D O I：

10.2528/pierl17010605

中图分类号：

学科分类号：

摘要：

This paper presents the design of a compact E-plane waveguide diplexer with wide stopband characteristics of high rejection level. This is achieved by utilizing a unique E-plane waveguide filter comprising rectangular apertures located along the waveguide’s E-plane. The upper and lower sections of the aperture in the septum insert have periodic comb-like ridges. The effect of the septum is (i) to slow the propagating wave that helps to reduce the filter’s size, and (ii) widens its stopband property. Dimensions of the periodic ridges of the aperture enable the center frequency of the filter to be controlled without compromising its bandwidth. In addition, the proposed E-plane waveguide filter provides a high isolation between the two diplexer channels, which is necessary to prevent significant cross-talk between the channels. The performance of the proposed design was verified through measurements. There is excellent agreement between the simulated and experimental results. © 2017, Electromagnetics Academy. All rights reserved.

引用

页码：59 / 64

页数：5