Title :
An NRD guide excited millimeter wave narrow bandpass filter using whispering gallery mode high-Q resonators
Author :
Shimizu, Takashi ; Kogami, Yoshinori
Author_Institution :
Graduate School of Engineering, Utsunomiya University, 7-1-2, Yoto, Utsunomiya, Tochigi, 321-8585, Japan
Abstract :
We focused on an NRD guide and the Whispering Gallery (WG) mode high Q sapphire resonator which have the excellent low loss characteristics in millimeter wave region. In this paper, the NRD guide excited millimeter wave narrow bandpass filter using WG mode sapphire resonators was designed and fabricated. As a result, it was reali%ed that the 3-pole bandpass filter with center frequency 58.64GH% and 3dB bandwidth 273MH%. Moreover, its insertion loss was found to be about 1.5dB.
Keywords :
Bandwidth; Ice; Band pass filters; Millimeter wave circuits; NRD guide; Resonator filter; Whispering gallery modes;
Conference_Titel :
Microwave Symposium Digest (MTT), 2012 IEEE MTT-S International
Conference_Location :
Montreal, QC, Canada
Print_ISBN :
978-1-4673-1085-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2012.6259404
