Stopband Performance Improvement of CSRR-Loaded Waveguide Bandpass Filters Using Asymmetric Slot Structures

被引：15

作者：

Bage, Amit ^{[1
]}

Das, Sushrut ^{[1
]}

机构：

[1] IIT ISM, Dept Elect Engn, Dhanbad 826004, Bihar, India

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2017年 / 27卷 / 08期

关键词：

Bandpass filter (BPF); complementary split-ring resonators (CSRR); transmission zeros (TZs); ATTENUATION POLES; DESIGN;

D O I：

10.1109/LMWC.2017.2723983

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 a simple waveguide filter structure having planar structure that can control transmission zeros (TZs) and center frequency independently. The planar structure is composed of the conventional complementary split-ring resonator (CSRR) and asymmetric slot structures. The planar structures resonate at particular frequencies and introduce total 2N TZs, above and below the passband of an Nth-order filter, and thus also improve the stopband performance of a planar CSRR-based waveguide bandpass filter. To demonstrate it, a third-order CSRR-loaded bandpass filter has been considered and analyzed. It has been shown that by varying the length of the asymmetric slot structures the TZs can be independently controlled.

引用

页码：697 / 699

页数：3

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