UNIPLANAR TUNABLE BANDPASS FILTER USING CENTRALLY-LOADED SLOT-LINE RESONATOR

被引：11

作者：

Chen, Jian-Xin ^{[1
]}

Bao, Zhi-Hua ^{[1
]}

Xu, Chen ^{[1
]}

Zhang, Guo-An ^{[1
]}

机构：

[1] Nantong Univ, Sch Elect & Informat, Nantong 226019, Jiangsu Prov, Peoples R China

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2010年 / 52卷 / 12期

基金：

中国国家自然科学基金;

关键词：

tunable bandpass filter (BPF); short-ended resonator; centrally loaded slot-line resonator;

D O I：

10.1002/mop.25617

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 novel uniplanar tunable bandpass filter (BPF) is designed by using the centrally loaded slot-line resonator. From the voltage-ware distribution along the resonator, the proper location for the loading element is determined to be the center of the slot-line resonator, where the voltages of the fundamental signal and second harmonic are maximum and zero. respectively. As a result, the fundamental frequency can be tuned, whereas the second harmonic remains almost unchanged. For the first time, the properties of the centrally loaded slot-line resonator are analyzed by using the even- and odd-mode method, and their respective resonant frequencies are derived. The demonstrated tunable BPF can give >30% frequency tuning range with acceptable insertion loss when a varactor is used as the loading element. (C) 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52:2805-2807,2010; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25617

引用

页码：2805 / 2807

页数：3

共 8 条

[1] Miniature high-Q double-spiral slot-line resonator filters [J].

Azadegan, R ;

Sarabandi, K .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2004, 52 (05) :1548-1557

[2] An Investigation of Open- and Short-Ended Resonators and Their Applications to Bandpass Filters [J].

Dai, Gao Le ;

Zhang, Xiu Yin ;

Chan, Chi Hou ;

Xue, Quan ;

Xia, Ming Yao .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2009, 57 (09) :2203-2210

[3]

Hong J. S, 2001, Microwave Filter for RF/Microwave Application

[4] Synthesis Design of Ultra-Wideband Bandpass Filters With Composite Series and Shunt Stubs [J].

Li, Rui ;

Sun, Sheng ;

Zhu, Lei .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2009, 57 (03) :684-692

[5] Low-loss two-pole tunable filters with three different predefined bandwidth characteristics [J].

Park, Sang-June ;

Rebeiz, Gabriel M. .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2008, 56 (05) :1137-1148

[6] Hybrid narrow-band tunable bandpass filter based on varactor loaded electromagnetic-bandgap coplanar waveguides [J].

Pistono, E ;

Ferrari, P ;

Duvillaret, L ;

Duchamp, JM ;

Harrison, RG .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2005, 53 (08) :2506-2514

[7]

Pozar D. M., 2009, Microwave Engineering

[8] ELECTRONICALLY SWITCHABLE AND TUNABLE COPLANAR WAVE-GUIDE SLOTLINE BAND-PASS FILTERS [J].

SHU, YH ;

NAVARRO, JA ;

CHANG, K .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1991, 39 (03) :548-554

← 1 →