作者: J.-X. Chen , T.Y. Yum , J.-L. Li , Q. Xue
关键词: Prototype filter 、 Electronic engineering 、 Physics 、 Band-pass filter 、 Topology 、 Elliptic filter 、 Band-stop filter 、 Passband 、 Butterworth filter 、 Transition band 、 High-pass filter
摘要: 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 resonators results in respective passband. This can provide convenience easily change one passband frequency, while another keeps almost the same. Several attenuation poles stopband are realized improve selectivity proposed filter. The theoretical and measured presented show good agreement