A Microstrip Bandpass Filter With Ultra-Wide Stopband

This paper develops a novel microstrip bandpass filter with ultra-wide stopband. With the assistance of open stubs and interdigital capacitors, a very wide stopband with a sufficient rejection level can be achieved easily. Detailed design and synthesis procedures are provided. Moreover, the electrom...

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Veröffentlicht in:	IEEE transactions on microwave theory and techniques 2008-06, Vol.56 (6), p.1468-1472
Hauptverfasser:	TANG, Ching-Wen, HSU, Yen-Kuo
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Band pass filters Bandpass filter Bandpass filters Capacitors Circuit properties Dielectric, amorphous and glass solid devices Electric, optical and optoelectronic circuits Electromagnetic measurements Electronic circuits Electronics Equivalent circuits Exact sciences and technology Feasibility Filtering theory Frequency filters microstrip filter Microstrip filters Microstrip resonators Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits Microwave filters Microwaves Power harmonic filters Prototypes Rejection Resonator filters Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Simulation Synthesis ultra-wide stopband
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Beschreibung
Zusammenfassung:	This paper develops a novel microstrip bandpass filter with ultra-wide stopband. With the assistance of open stubs and interdigital capacitors, a very wide stopband with a sufficient rejection level can be achieved easily. Detailed design and synthesis procedures are provided. Moreover, the electromagnetic simulator IE3D is used, and the prototype of the bandpass filter is fabricated and measured. Good agreement between measured and theoretically predicted results demonstrates feasibility of the proposed filter.
ISSN:	0018-9480 1557-9670
DOI:	10.1109/TMTT.2008.923900