Compact tunable bandpass filter with improved stopband rejection and wide tuning range

被引：0

作者：

Zhao, Baolin ^{[1
]}

Gao, Guanghui ^{[1
]}

Wei, Xubo ^{[2
]}

Gao, Peng ^{[2
]}

Shi, Yu ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 611731, Peoples R China

[2] Univ Elect Sci & Technol China, Res Inst Elect Sci & Technol, Chengdu 611731, Peoples R China

来源：

IEICE ELECTRONICS EXPRESS | 2013年 / 10卷 / 18期

关键词：

tunable BPF; transmission zeros; mixed E/M coupling; COMBLINE FILTER;

D O I：

10.1587/elex.10.20130561

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：

A compact tunable bandpass filter (BPF) with wide tuning range and improved stopband rejection based on low-temperature co-fired ceramic (LTCC) technique is presented. The axial coupling structure is employed to achieve a wide tuning range and increase resonator Q. To improve the stopband characteristics, Multiple transmission zeros (TZs) are introduced near the passband. A new tunable BPF with a 100% tuning range from 480 to 960 MHz has been designed and fabricated to verify the proposed method. The measured results are in good agreement with the electromagnetic (EM) simulation. The circuit only occupies 3.5x3.0x1.7mm(3).

引用

页数：6

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20151500741028
[J]. (1) School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu; 611731, China; (2) National University of Singapore, Department of Electrical and Computer Engineering, Singapore; 117576, Singapore, 1600, et al.; IEEE Sendai Section, The Japan Institute of Electronics Packaging; The Institute of Electronics, Information and Communication Engineers (IEICE); The Technical Committee on Electronics Simulation Technology, Electronics Society, IEICE; The Technical Committee on Microwave Photonics, Electronics Society, IEICE; The Technical Committee on Microwaves, Electronics Society, IEICE (Institute of Electrical and Electronics Engineers Inc., United States):
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