COMPACT AND HIGH PERFORMANCE BANDPASS FILTER BASED ON AN IMPROVED HYBRID RESONATOR USING BEELINE COMPACT MICROSTRIP RESONATOR CELL (BCMRC)

被引：1

作者：

Ji, Y-X ^{[1
]}

Xu, J. ^{[1
]}

Niu, Y-M ^{[1
]}

Hua, C-Z ^{[1
]}

Chen, C-H ^{[1
]}

Wu, W. ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Ministerial Key Lab JGMT, Nanjing 210094, Peoples R China

来源：

JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS | 2011年 / 25卷 / 11-12期

关键词：

STEPPED-IMPEDANCE RESONATORS;

D O I：

10.1163/156939311797164990

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 paper, a compact microstrip bandpass filter is presented by using a proposed improved hybrid resonator. Without requiring the cross-coupling and the source-load coupling, the new filter has a transmission zero on the upper stopband to provide a high selectivity. The fabricated filter is designed at f(0) = 1 GHz and has a compact size of 0.112 lambda(g) X 0.057 lambda(g). Good agreement is observed between the measurements and simulations. The measured results show that the new filter has a wide -60 dB rejection upper stopband from 1.24f(0) to 4.05 f(0). In addition, a -20 dB rejection ultra-wide upper stopband is measured from 1.08 f(0) to 15.38 f(0). The new filter can be fabricated using the standard printed-circuit-board (PCB) process and has a planar topology, which is easily integrated with the modern wireless communication system.

引用

页码：1525 / 1535

页数：11

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