Compact dual-band bandpass filter using single meander multimode DGS resonator

A novel dual-band bandpass filter (BPF) with a dual-plane structure is proposed. The dual-plane structure consists of a pair of microstrip feed lines with capacitive source–load coupling on the top layer and a meander multimode defected ground structure resonator (MMDGSR) on the bottom layer. Using...

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Veröffentlicht in:	Electronics letters 2013-08, Vol.49 (17), p.1083-1084
Hauptverfasser:	Jin, X, Zhang, Z.-H, Wang, L, Guan, B.-R
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences bottom layer capacitive source‐load coupling Circuit properties compact dual‐band bandpass filter compact dual‐band BPF dual‐plane structure Electric, optical and optoelectronic circuits Electronic circuits Electronics Exact sciences and technology frequency 2.45 GHz frequency 5.8 GHz Frequency filters microstrip feed lines Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits microwave filters microwave resonators Microwave technology MMDGSR single meander multimode defected ground structure resonator transmission zeros UHF filters UHF resonators wireless local area network application
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Beschreibung
Zusammenfassung:	A novel dual-band bandpass filter (BPF) with a dual-plane structure is proposed. The dual-plane structure consists of a pair of microstrip feed lines with capacitive source–load coupling on the top layer and a meander multimode defected ground structure resonator (MMDGSR) on the bottom layer. Using the intrinsic characteristics of the MMDGSR, two passbands and four transmission zeros can be generated simultaneously. An experimental dual-band BPF operating at 2.45/5.8 GHz (WLAN application) has been designed and fabricated. This performance is verified by good agreement between the simulated and measured results.
ISSN:	0013-5194 1350-911X 1350-911X
DOI:	10.1049/el.2013.0977