Title :
Compact 2.4-/2.9-GHz band parallel-planar bandpass filter
Author :
Takagi, Yuta ; Satoh, Kei ; Koizumi, Daisuke ; Narahashi, Shoichi
Author_Institution :
Res. Labs., NTT DOCOMO, Inc., Yokosuka
Abstract :
This paper proposes a compact dual-band bandpass filter (DBPF) based on a parallel-planar architecture where resonators are formed on the opposite sides of each substrate. The proposed architecture enables dual-band operation without an appreciable change in the volume of the DBPF and yields design freedom for the resonant frequencies by adjusting the distance between the substrates. A 2.4-/2.9-GHz band DBPF is fabricated using YBCO film deposited on a MgO substrate with a coplanar waveguide structure to investigate experimentally dual-band operation. The measurement results agree with those of the simulation.
Keywords :
band-pass filters; resonators; MgO; compact dual-band bandpass filter; frequency 2.4 GHz; frequency 2.9 GHz; parallel-planar bandpass filter; Band pass filters; Distributed Bragg reflectors; Dual band; Mobile communication; Passband; Radio frequency; Resonant frequency; Resonator filters; Substrates; Yttrium barium copper oxide; Bandpass filters; YBCO; dual-band; resonator filters;
Conference_Titel :
Radio and Wireless Symposium, 2009. RWS '09. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2698-0
Electronic_ISBN :
978-1-4244-2699-7
DOI :
10.1109/RWS.2009.4957291
