Title :
Wideband Parallel-Strip Bandpass Filter Using Phase Inverter
Author :
Wong, Ka Wai ; Chiu, Leung ; Xue, Quan
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong
Abstract :
A new wideband parallel-strip bandpass filter using phase inverter with stubs is proposed. With the wideband phase inverter in the parallel-strip line structure, the measured fractional passband bandwidth is 123% with a flat group delay response. Also, over 90% impedance bandwidth is obtained for the return loss higher than 20 dB. The theoretical simulation, electromagnetic simulation, and measured results show good agreement with this proposed design.
Keywords :
band-pass filters; invertors; electromagnetic simulation; fractional passband bandwidth; parallel-strip line structure; phase inverter; wideband parallel-strip bandpass filter; Band pass filters; Bandwidth; Circuit simulation; Delay; Electromagnetic measurements; Impedance; Inverters; Microwave filters; Passband; Wideband; Bandpass filter (BPF); parallel-strip line; phase inverters; wideband filters;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2008.2001001
