Title :
A Novel Sub-Millimeter-Wave UWB Filter
Author :
Cai, Peng ; Ma, Zhewang ; Guan, Xuehui ; Zheng, Guoxin ; Anada, Tetsuo
Author_Institution :
Shanghai Univ., Shanghai
Abstract :
A novel sub-millimeter-wave bandpass filter used in ultra-wideband (UWB) systems is developed in this paper. The filter consists of two microstrip square ring resonators loaded with two lambda0/4 and 3lambda0/4 open stubs, respectively, where lambda0 is the guided-wavelength at the midband frequency of the filter. The filter has a midband frequency of 25.5 GHz and a 3-dB bandwidth of 5 GHz (20%). Theoretical and measured results show that the filter is low loss within the passband, has sharp attenuations near the passband, and exhibits very wide stopband due to the introduced multiple transmission zeros.
Keywords :
band-pass filters; microstrip resonators; poles and zeros; submillimetre wave filters; ultra wideband technology; bandpass filter; bandwidth 5 GHz; frequency 25.5 GHz; microstrip square ring resonators; multiple transmission zeros; sub-millimeter-wave UWB filter; ultra-wideband systems; Attenuation measurement; Band pass filters; Bandwidth; Frequency; Microstrip filters; Microstrip resonators; Optical ring resonators; Passband; Resonator filters; Ultra wideband technology;
Conference_Titel :
Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics, 2006. IRMMW-THz 2006. Joint 31st International Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0400-2
Electronic_ISBN :
1-4244-0400-2
DOI :
10.1109/ICIMW.2006.368448
