An ultra-broadband coplanar-waveguide bandpass filter with sharp skirt selectivity

作者：Chen Nan Wei^*; Fang Kuo Zhi

来源：IEEE Microwave and Wireless Components Letters, 2007, 17(2): 124-126.

DOI：10.1109/LMWC.2006.890337

• bandpass filter (BPF)
• cascaded CPW filter
• coplanar-waveguide (CPW)

An ultra-broadband coplanar-waveguide (CPW) bandpass filter (BPF) is demonstrated. The proposed CPW BPF is designed via cascading CPW lowpass and bandpass structures. As compared to the classical CPW BPFs, the ultra broadband is realized relatively easily by separately adjusting the cutoff frequencies of the CPW lowpass and bandpass structures. The cascaded CPW BPF is of greater than 120% 3-dB fractional bandwidth, very sharp skirt selectivity, good stopband rejection, and no repeated passbands.

• 出版日期2007-2
• 单位中央民族大学