Dual-Mode Dual-Band Bandpass Filter Using Stacked-Loop Structure

In this letter, a dual-mode dual-band bandpass filter using stacked-loop structure is proposed, which allows two transmission paths to radio frequency (RF) signals. Each of them using dual-mode resonators results in respective passband. This can provide convenience to easily change one passband freq...

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Veröffentlicht in:	IEEE microwave and wireless components letters 2006-09, Vol.16 (9), p.502-504
Hauptverfasser:	Jian-Xin Chen, Yum, T.Y., Jia-Lin Li, Quan Xue
Format:	Artikel
Sprache:	eng
Schlagworte:	Accuracy Applied sciences Attenuation Band pass filters Bandpass filter Bandpass filters Circuit properties Dielectric substrates Dual band dual-mode Electric, optical and optoelectronic circuits Electronic circuits Electronics Exact sciences and technology Frequency filters Microstrip filters Microwaves Oscillators, resonators, synthetizers Passband Poles Radio frequencies Radio frequency Resonant frequency Resonator filters Resonators RF signals Selectivity stacked-loop Wireless communication
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Beschreibung
Zusammenfassung:	In this letter, a dual-mode dual-band bandpass filter using stacked-loop structure is proposed, which allows two transmission paths to radio frequency (RF) signals. Each of them using dual-mode resonators results in respective passband. This can provide convenience to easily change one passband frequency, while another keeps almost the same. Several attenuation poles in the stopband are realized to improve the selectivity of the proposed bandpass filter. The theoretical and measured results are presented and show good agreement
ISSN:	1531-1309 2771-957X 1558-1764 2771-9588
DOI:	10.1109/LMWC.2006.880705