Novel dual-mode dual-band bandpass filter using double square-loop structure

被引:37
作者
Chen, Z.-X. [1 ]
Dai, X.-W. [1 ]
Liang, C.-H. [1 ]
机构
[1] Xidian Univ, Natl Key Lab Antennas & Microwave Technol, Xian 710071, Peoples R China
关键词
15;
D O I
10.2528/PIER07082803
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 dual-mode dual-band bandpass microstrip filter using double square-loop structure is proposed in this paper. Each of the square-loop forms a dual-mode resonator with controllable respective passband. Two tuning patches placed symmetrically at the side of the perturbation patch are used to change the higher passband frequency, while while keeping the lower invariable. Several attenuation poles in the stopband are realized to improve the selectivity of the proposed bandpass filter. The filter is evaluated by experiment and simulation with good agreement.
引用
收藏
页码:409 / 416
页数:8
相关论文
共 15 条
[1]  
CHEN JX, 2006, IEEE MICROWAVE WIREL, V16
[2]   Description of coupling between degenerate modes of a dual-mode microstrip loop resonator using a novel perturbation arrangement and its dual-mode bandpass filter applications [J].
Görür, A .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2004, 52 (02) :671-677
[3]   REALIZATION OF QUASIELLIPTIC FUNCTION FILTER USING DUAL-MODE MICROSTRIP SQUARE LOOP RESONATORS [J].
HONG, JS ;
LANCASTER, MJ .
ELECTRONICS LETTERS, 1995, 31 (24) :2085-2086
[4]  
Hong JS, 2000, IEEE MTT S INT MICR, P331, DOI 10.1109/MWSYM.2000.861002
[5]   Compact dual-mode elliptic-function bandpass filter using a single ring resonator with one coupling gap [J].
Hsieh, LH ;
Chang, K .
ELECTRONICS LETTERS, 2000, 36 (19) :1626-1627
[6]   Simulation, analysis, design and applications of array defected microstrip structure (ADMS) filters using rigorously coupled multi-strip (RCMS) method [J].
Kazerooni, M. ;
Cheldavi, A. .
PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER, 2006, 63 :193-207
[7]   Microwave filters using waveguides filled by multi-layer dielectric [J].
Khalaj-Amirhosseini, M. .
PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER, 2006, 66 :105-110
[8]  
LEVY R, 1970, IEEE GMTT MICROWAVE, V70, P71
[9]   Electromagnetic characterization of a magnetic material using an open-ended waveguide probe and a rigorous full-wave multimode model [J].
Stewart, J. W. ;
Havrilla, M. J. .
JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS, 2006, 20 (14) :2037-2052
[10]  
SUN S, 2005, IEEE APMC 2005