A compact microstrip square-loop dual-mode balun-bandpass filter with simultaneous spurious response suppression and differential performance improvement
Cheong P.; Lv T.-S.; Choi W.-W.; Tam K.-W.
2011
Source PublicationIEEE Microwave and Wireless Components Letters
ISSN15311309
Volume21Issue:2Pages:77-79
Abstract

A microstrip balun-bandpass filter (BPF) using capacitively loaded square-loop dual-mode resonator is proposed; it realizes not only simultaneous size reduction and spurious response suppression in filtering but also overall good differential performance of the balun. The phase and amplitude imbalance improvements due to the loaded resonator are also studied and verified by a prototype balun-BPF operated at 2.55 GHz with 3.5% fractional bandwidth. The experimental results reveal that size reduction of 47% and spurious suppressions of 30 dB beyond 1.5 f0 are achieved as compared to that of the conventional structure. The loading effect of the prototype balun-BPF reports 180.8° and 0.97 dB as phase and amplitude imbalances at the operating frequency respectively. © 2010 IEEE.

KeywordBalun Bandpass Filter (Bpf) Dual-mode Resonator Size Reduction Spurious Suppression
DOI10.1109/LMWC.2010.2099650
URLView the original
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000287319900007
The Source to ArticleScopus
Fulltext Access
Citation statistics
Cited Times [WOS]:40   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
AffiliationUniv Macau, Dept Elect & Elect Engn, Av Padre Tomas Pereira, Peoples R China
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Cheong P.,Lv T.-S.,Choi W.-W.,et al. A compact microstrip square-loop dual-mode balun-bandpass filter with simultaneous spurious response suppression and differential performance improvement[J]. IEEE Microwave and Wireless Components Letters,2011,21(2):77-79.
APA Cheong P.,Lv T.-S.,Choi W.-W.,&Tam K.-W..(2011).A compact microstrip square-loop dual-mode balun-bandpass filter with simultaneous spurious response suppression and differential performance improvement.IEEE Microwave and Wireless Components Letters,21(2),77-79.
MLA Cheong P.,et al."A compact microstrip square-loop dual-mode balun-bandpass filter with simultaneous spurious response suppression and differential performance improvement".IEEE Microwave and Wireless Components Letters 21.2(2011):77-79.
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