WIDEBAND BANDPASS FILTER WITH CONTROLLABLE BANDWIDTH AND HIGH SELECTIVITY USING TWO DIFFERENT TYPES OF RESONATORS

被引：7

作者：

Ma, Xing-Bing ^{[1
,2
]}

Jiang, Ting ^{[1
]}

机构：

[1] Beijing Univ Posts & Telecommun, Key Lab Universal Wireless Commun, Minist Educ, Beijing 100876, Peoples R China

[2] Tianjin Univ Technol & Educ, Tianjin 300222, Peoples R China

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2015年 / 57卷 / 06期

关键词：

wideband bandpass filter; controllable bandwidth; inverted I-shaped resonator; COMPACT; LINE;

D O I：

10.1002/mop.29085

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：

In this article, a new wideband bandpass filter (BPF) adopting two different types of resonators is proposed. The filter is constructed of four same open loop resonators and one inverted I-shaped resonator located at the middle. As a result, compared with conventional BPF without inverted I-shaped resonator, the proposed BPF exhibits one new transmission zero around the passband, which can adjust bandwidth and increase the selectivity at high-side edge of the passband significantly. The desired bandwidth can be obtained where the bandwidth is basically proportional to the upper or bottom coupling gaps between inverted I-shaped resonator and two adjoining open loop resonators. For verification, the proposed BPF is designed and fabricated where good agreement is observed. (c) 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:1319-1323, 2015

引用

页码：1319 / 1323

页数：5

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