Compact microstrip quasi-elliptic bandpass filter using open-loop dumbbell shaped defected ground structure

被引：8

作者：

Ting, Sio-Weng ^{[1
]}

Tam, Kam-Weng ^{[1
]}

Martins, R. P. ^{[1
]}

机构：

[1] Univ Macau, Wireless Commun Lab, Macau, Peoples R China

来源：

2006 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST, VOLS 1-5 | 2006年

关键词：

defected ground structure (DGS); bandpass filter; finite transmission zero; quasi-elliptic;

D O I：

10.1109/MWSYM.2006.249627

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 square open-loop dumbbell-shaped defected ground structure (DGS) unit is proposed. This unit provides a quasi-elliptic bandpass characteristic and the two transmission zeros near the passband edges can, be controlled by the dimensions of DGS. Two quasi-elliptic bandpass filters using one and two DGS units; centered at 1.5 GHz were designed and implemented. Both the simulation and experimental results show that the DGS filter response is in good accordance with ideal quasi-elliptic model. The prototype filter with two DGS units yields higher order quasi-elliptic filtering and reports the measured 0.72 dB as insertion loss, 34 dB as matching, 51.8% fractional bandwidth and about 20 dB stopband attenuation up to 10 GHz.

引用

页码：527 / 530

页数：4

共 50 条

[1] Quasi-elliptic SIR Bandpass Filter with Defected Ground Structure
Garmjani, Nima Molaei
Komjani, Nader
[J]. APMC: 2009 ASIA PACIFIC MICROWAVE CONFERENCE, VOLS 1-5, 2009, : 2534 - 2537
[2] Bandpass Filter Design using an Open-Loop Defected Ground Structure Resonator
Vagner, Petr
Kasal, Miroslav
[J]. PROCEEDINGS OF THE 15TH CONFERENCE ON MICROWAVE TECHNIQUES, COMITE 2010, 2010, : 77 - 80
[3] Compact quasi-elliptic function filter based on defected ground structure
Chen, J. -X.
Li, J. -L.
Wan, K. -C.
Xue, Q.
[J]. IEE PROCEEDINGS-MICROWAVES ANTENNAS AND PROPAGATION, 2006, 153 (04) : 320 - 324
[4] Novel quasi-elliptic microstrip filter configuration using hexagonal open-loop resonators
Chang, KF
Tam, KW
Choi, WW
Martins, RP
[J]. 2002 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOL III, PROCEEDINGS, 2002, : 863 - 866
[5] Compact Quasi-Elliptic Bandpass Filter
Virdee, Bal S.
Farhat, Mohamad
Ahmed, Kafil U.
[J]. ASIA-PACIFIC MICROWAVE CONFERENCE 2011, 2011, : 1051 - 1053
[6] A Novel Bandpass Filter Using a Combination of Open-Loop Defected Ground Structure and Half-Wavelength Microstrip Resonators
Vagner, Petr
Kasal, Miroslav
[J]. RADIOENGINEERING, 2010, 19 (03) : 392 - 396
[7] A novel compact bandpass filter using microstrip defected ground structure
Shi, J
Li, JL
[J]. MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2006, 48 (02) : 281 - 283
[8] Novel Reconfigurable Multiple-Band Quasi-Elliptic Bandpass Filter using Defected Ground Structure
Chio, Chan-Keong
Ting, Sio-Weng
Tam, Kam-Weng
[J]. 2013 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST (IMS), 2013,
[9] Compact microstrip square open-loop bandpass filter using open stub
Maharjan, R. K.
Shrestha, B.
Kim, N. Y.
[J]. ELECTRONICS LETTERS, 2012, 48 (06) : 333 - 334
[10] Quasi-elliptic filter characteristics of an asymmetric defected ground structure
Parui, Susanta Kumar
Moyra, Tamosi
Das, Santanu
[J]. INTERNATIONAL JOURNAL OF ELECTRONICS, 2009, 96 (9-10) : 915 - 924

← 1 2 3 4 5 →