Microstrip dual-band bandstop filter of defected ground structure and stepped impedance resonators

被引：12

作者：

Che, Wenquan ^{[1
]}

Feng, Wenjie ^{[1
]}

Deng, Kuan ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Dept Commun Engn, Nanjing 210094, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ELECTRONICS | 2010年 / 97卷 / 11期

关键词：

microstrip bandstop filter (BSF); defected ground structure (DGS); fractional bandwidth; stepped impedance resonators (SIRs);

D O I：

10.1080/00207217.2010.488907

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：

This article presents a compact microstrip dual-band bandstop filter (BSF), in which one g/4 defected ground structure (DGS) pair is utilised to realise one stopband while two stepped impedance resonators (SIRs) help obtain another stopband and suppress the spurious harmonics. The design strategies and the equivalent circuits are introduced in detail. The measured results indicate 43.8% and 18.7% fractional bandwidth in the two stopbands (2.4GHZ and 5.2GHz) respectively, and the return loss is greater than 15dB in the whole passband. In addition, size reduction can be conveniently achieved by adjusting the length of the SIRs and DGS.

引用

页码：1351 / 1359

页数：9

共 9 条

[1] Direct-coupled microwave filters with. single and dual stopbands [J].

Cameron, RJ ;

Yu, M ;

Wang, Y .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2005, 53 (11) :3288-3297

[2]

Hong J. S. G., 2001, WILEY MICRO

[3]

MA Z, 2007, P AS PAC MICR C BANG, P1177

[4] BANDPASS-FILTERS USING PARALLEL COUPLED STRIPLINE STEPPED IMPEDANCE RESONATORS [J].

MAKIMOTO, M ;

YAMASHITA, S .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1980, 28 (12) :1413-1417

[5] Compact microstrip lowpass filter with wide stop-band integrating a bandstop structure in an open-loop resonator [J].

Shi, J ;

Chen, JX ;

Xue, Q .

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2005, 47 (06) :582-584

[6] Dual-band bandpass and bandstop filters using composite right/left-handed metamaterial transmission lines [J].

Tseng, Chao-Hsiung ;

Itoh, Tatsuo .

2006 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST, VOLS 1-5, 2006, :931-+

[7] Dual-band-rejection filter for distortion reduction in RF transmitters [J].

Uchida, H ;

Kamino, H ;

Totani, K ;

Yoneda, N ;

Miyazaki, M ;

Konishi, Y ;

Makino, S ;

Hirokawa, J ;

Ando, M .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2004, 52 (11) :2550-2556

[8] Novel U-slot and V-slot DGSs for bandstop filter with improved Q factor [J].

Woo, Duk-Jae ;

Lee, Taek-Kyung ;

Lee, Jae-Wook ;

Pyo, Cheol-Sig ;

Choi, Won-Kyu .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2006, 54 (06) :2840-2847

[9] Novel 1-D microstrip PBG cells [J].

Xue, Q ;

Shum, KM ;

Chan, CH .

IEEE MICROWAVE AND GUIDED WAVE LETTERS, 2000, 10 (10) :403-405

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