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Compact microstrip quasi-elliptic bandpass filter using open-loop dumbbell shaped defected ground structure
Sio-Weng Ting1; Kam-Weng Tam1; R. P. Martins1,2
2006-11-20
Conference NameIEEE MTT-S International Microwave Symposium
Source PublicationIEEE MTT-S International Microwave Symposium Digest
Pages527-530
Conference Date11-16 June 2006
Conference PlaceSan Francisco, CA, USA
CountryUnited States
Author of SourceIEEE
Publication Place345 E 47TH ST, NEW YORK, NY 10017 USA
PublisherIEEE
Abstract

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. 

KeywordBandpass Filter Defected Ground Structure (Dgs) Finite Transmission Zero Quasi-elliptic
DOI10.1109/MWSYM.2006.249627
URLView the original
Indexed ByCPCI-S
Language英語English
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000244379001027
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Citation statistics
Cited Times [WOS]:8   [WOS Record]     [Related Records in WOS]
Document TypeConference paper
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Faculty of Science and Technology
Affiliation1.Wireless Communication Laboratory, University of Macau, Macao, China
2.20n leave from Instituto Superior Tecnico, Technical University of Lisbon, Portugal
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Sio-Weng Ting,Kam-Weng Tam,R. P. Martins. Compact microstrip quasi-elliptic bandpass filter using open-loop dumbbell shaped defected ground structure[C]//IEEE. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2006:527-530.
APA Sio-Weng Ting,Kam-Weng Tam,&R. P. Martins.(2006).Compact microstrip quasi-elliptic bandpass filter using open-loop dumbbell shaped defected ground structure.IEEE MTT-S International Microwave Symposium Digest,527-530.
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