Novel dual-mode resonator bandpass filter with high rejection in extended wide stopband
作者： Dian-Jing Chen , Jen-Tsai Kuo
DOI: 10.1109/APMC.2012.6421514
关键词: Elliptic filter 、 Band-stop filter 、 Transition band 、 Passband 、 Stopband 、 Prototype filter 、 Electronic filter topology 、 Chebyshev filter 、 Acoustics 、 Control theory 、 Physics
摘要: A dual-mode resonator filter is designed to have a wide upper stopband. The design incorporates controllable transmission zero near the passband for selectivity enhancement. Through proposed input and output coupling structure, more zeros are generated multi-order spurious suppression stopband extension. As result, extended up 7 times center frequency (7f o ) with rejection better than 30-dB, 5.82f at least 40-dB. Measurement results show good agreement simulation.
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