Title :
A 55GHz 5-pole NRD guide E-plane bandpass filter for millimeter wave OFDM applications
Author :
Shimizu, Takashi ; Kawahara, Yuki ; Nakagawa, Takayuki ; Yoneyama, Tsukasa
Author_Institution :
Tohoku Inst. of Technol., Sendai
Abstract :
A rectangular waveguide compatible NRD guide E-plane bandpass filter is proposed for millimeter wave OFDM applications. The NRD guide E- plane bandpass filter is constructed by inserting a metal foil array in the E-plane of NRD guide. Simulation, fabrication, and handling of the filter are not difficult because each resonator is constructed by a couple of metal foils of a simple shape. A Chebyshev response 5-pole bandpass filter with a very narrow bandwidth of 550 MHz is designed and fabricated at 55 GHz. Simulated and measured filter performances agree well with the design specifications. Insertion loss and temperature stability of the fabricated filter are found to be quite practical.
Keywords :
Chebyshev filters; OFDM modulation; band-pass filters; millimetre wave filters; nonradiative dielectric waveguides; rectangular waveguides; 5-pole NRD guide E-plane bandpass filter; Chebyshev response 5-pole bandpass filter; bandwidth 55 MHz; fabricated filter; frequency 55 GHz; insertion loss; metal foil array; millimeter wave OFDM applications; rectangular waveguide; temperature stability; Band pass filters; Bandwidth; Chebyshev approximation; Fabrication; Insertion loss; OFDM; Performance evaluation; Rectangular waveguides; Resonator filters; Shape; NRD guide E-plane resonator; NRD-guide; bandpass filter; millimeter wave;
Conference_Titel :
Microwave Conference, 2006. APMC 2006. Asia-Pacific
Conference_Location :
Yokohama
Print_ISBN :
978-4-902339-08-6
Electronic_ISBN :
978-4-902339-11-6
DOI :
10.1109/APMC.2006.4429532
