Title :
A Compact Ultra-Wideband (UWB) Bandpass Filter With Transmission Zero
Author :
Shaman, Hussein N. ; Hong, Jia-Sheng
Author_Institution :
Dept. of Electr., Electron. & Comput. Eng., Heriot-Watt Univ., Edinburgh
Abstract :
A compact ultra-wideband (UWB) bandpass filter with a fractional bandwidth (FBW) of about 110% and transmission zero at the high frequency edge is presented using a microstrip structure. The filter is based on a circuit model for an optimum stub filter consisting of only 5 short-circuited stubs separated by non-redundant connecting lines. As a result, the filter in a compact structure exhibited a selective filtering characteristic equivalent to a 9-pole Chebyshev filter. The design was successfully realized in theory and verified by full-wave EM simulation of the full layout and the experiment. The proposed filter had low insertion loss, sharp rejection, and excellent performance both inside and outside the band
Keywords :
Chebyshev filters; band-pass filters; microwave filters; poles and zeros; Chebyshev filter; fractional bandwidth; insertion loss; microwave filters; stub filter; transmission zero; ultra wideband bandpass filter; Band pass filters; Bandwidth; Chebyshev approximation; Circuit simulation; Filtering theory; Frequency; Insertion loss; Joining processes; Microstrip filters; Ultra wideband technology;
Conference_Titel :
Microwave Conference, 2006. 36th European
Conference_Location :
Manchester
Print_ISBN :
2-9600551-6-0
DOI :
10.1109/EUMC.2006.281464
