A Novel Dual-Mode Dual-Band Bandpass Filter Based on a Single Ring Resonator

A dual-mode dual-band bandpass filter with two transmission poles in both passbands using a single ring resonator is proposed. Two excited ports are placed at the 135 deg -separated positions along the ring resonator and coupled with the ring via parallel-coupled lines, leading to synchronous excita...

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Veröffentlicht in:	IEEE microwave and wireless components letters 2009-08, Vol.19 (8), p.497-499
Hauptverfasser:	Sha Luo, Sha Luo, Lei Zhu, Lei Zhu
Format:	Artikel
Sprache:	eng
Schlagworte:	Adjustable Applied sciences Band pass filters Bandpass filter (BPF) Bandpass filters Circuit properties Couplings Dual band dual-mode Electric, optical and optoelectronic circuits Electronic circuits Electronics Exact sciences and technology Excitation Frequency Frequency filters Impedance Microstrip resonators Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits Microwave filters Microwaves open-circuited stubs Optical ring resonators Oscillators, resonators, synthetizers Passband Poles Ports Resonator filters Resonators ring resonator Synchronous
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