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A reconfigurable ultra-wideband (UWB) bandpass filter (BPF) with tunable notch band for UWB system is presented in this paper. The UWB BPF adopts the proposed stub-loaded multiple-mode resonator (MMR) structure and RF-MEMS switched capacitor network which is used for electronic tuning. The filter is printed on a Roger's RT/Duriod 6010 substrate with the dimensions of 10 mm × 10 mm × 1.2 mm and relative...
This paper presents a dual-band bandpass filter with tunable centre frequencies. The proposed filter is mainly implemented by two λ / 2 resonator and three varactor diodes. By adjusting all varactors can adjust the centre frequency of the two passband, if Cv1 is fixed, only tuned Cv2 can achieve first pass band fixed while the second passband could be adjusted. When adjusted the frequency of both...
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