標題: Miniaturized Hybrid Ring Bandpass Filter with a Notched Band and an Improved Upper Stopband Using Double-Sided Parallel-Strip Lines
作者: Li, Jian-Yu
Chi, Chun-Hsiang
Chang, Chi-Yang
電信工程研究所
Institute of Communications Engineering
關鍵字: wideband bandpass filter;hybrid ring;double-sided parallel-strip line (DSPSL);offset double-sided parallel-strip line (ODSPSL);stepped-impedance;notch
公開日期: 2012
摘要: A wideband stepped-impedance hybrid bandpass filter with a notched band and an improved upper stopband is proposed. The double-sided parallel-strip line (DSPSL) is employed to implement the proposed filter. The stepped-impedance structure improves the upper stopband performance and reduces the size. Besides, the open-circuited stub embedded in the stepped-impedance line of the hybrid ring is used to create a notched band. The low impedance portion of the stepped-impedance line is formed by the DSPSL while the high impedance portion of that is constructed by the offset double-sided parallel-strip line (ODSPSL). The design example is fabricated on a 20 mil RO4003 substrate. The measurement results show excellent agreements with the electromagnetic simulation.
URI: http://hdl.handle.net/11536/21988
ISBN: 978-1-4577-1330-9
期刊: 2012 ASIA-PACIFIC MICROWAVE CONFERENCE (APMC 2012)
起始頁: 250
結束頁: 252
顯示於類別:會議論文