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Novel quasi-elliptic microstrip filter configuration using hexagonal open-loop resonators
Chang K.F.; Tam K.W.; Choi W.W.; Martins R.P.
2002
Conference NameIEEE International Symposium on Circuits and Systems
Source PublicationProceedings - IEEE International Symposium on Circuits and Systems
Volume3
Pages863-866
Conference Date26-29, 2002
Conference PlacePHOENIX, AZ
CountryUnited States
Author of SourceIEEE
Publication Place345 E 47TH ST, NEW YORK, NY 10017 USA
PublisherIEEE
Abstract

In this paper, a novel filter configuration in enhancing the selectivity of the quasi-elliptic microstrip bandpass filters is presented. The filter topology is based on hexagonal open-loop resonators and this offers additional electric coupling. This extra electric coupling together with the cross coupling between several pairs of adjacent hexagonal open-loop resonators relocate the attenuation poles of the quasi-elliptic filter so as to provide higher selectivity. Compared to a traditional six-pole square open-loop resonator microstrip filter with a fractional bandwidth of 7.8% and center frequency of 1GHz, this new filter configuration offers additional 13dB rejection improvement at the attenuation pole in the lower rejection band whilst the fractional bandwidth reduces about 5% of that traditional filter and the filter dimension diminishes by 27%.

DOI10.1109/ISCAS.2002.1010361
URLView the original
Indexed BySCI
Language英语
WOS Research AreaComputer Science ; Engineering ; Telecommunications
WOS SubjectComputer Science, Hardware & Architecture ; Computer Science, Information Systems ; Engineering, Electrical & Electronic
WOS IDWOS:000186328000217
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Citation statistics
Document TypeConference paper
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
AffiliationUniversidade de Macau
Recommended Citation
GB/T 7714
Chang K.F.,Tam K.W.,Choi W.W.,et al. Novel quasi-elliptic microstrip filter configuration using hexagonal open-loop resonators[C]//IEEE. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2002:863-866.
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