A compact sharp-rejection lowpass filter

作者：Hung Cheng Yuan; Weng Min Hang; Yang Ru Yuan^*

来源：Microwave and Optical Technology Letters, 2008, 50(4): 894-896.

DOI：10.1002/mop.23224

• sharp-rejection
• lowpass filter
• coupled line
• open-circuited resonator

In this article, a compact sharp-rejection lowpass filter (SRLPF) is proposed and analyzed. By combining the coupled line section and shunt open-circuited resonator, a compact lowpass filter with wide stopband and very high passband selectivity, is realized. This filter at cutoff frequency f(c) of 2 GHz has presented very good measured characteristics, including very low insertion loss of 0.15 +/- 0.05 dB, wide stopband from 3.2 to 8 GHz and attenuation slope of 51 dB/GHz.

• 出版日期2008-4