A novel compact dual-mode circular-patch bandpass filter with improved second spurious response
作者： Min-Hung Weng , Han-Ding Hsueh
DOI: 10.1002/MOP.21123
关键词: Insertion loss 、 Band-pass filter 、 Center frequency 、 Physics 、 Acoustics 、 Band-stop filter 、 Bandwidth (signal processing) 、 Stopband 、 Microwave 、 Electronic engineering 、 Resonator
摘要: A novel compact dual-mode circular-patch bandpass filter (BPF) with improved stopband performance is presented. pair of square etched areas acting as a perturbation element on the resonator used in proposed structure, so that two split modes are coupled and structure can be reduced. An open stub attached at input/output port order to improve BPF. The BPF demonstrated central frequency f0 = 2.17 GHz, insertion loss −2 dB, 3-dB bandwidth 8%, rejection −35 dB 2nd harmonic. measured results experimental show good agreement theoretical simulated results. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 47: 203–206, 2005; Published online InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21123
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