Title :
TEM-mode planar dielectric waveguide resonator BPF for W-CDMA
Author :
Kundu, A.C. ; Endou, K.
Author_Institution :
Adv. Products Dev. Center, TDK Corp., Ichikawa, Japan
Abstract :
A low-profile TEM-mode silver-coated /spl lambda//4 high dielectric (/spl epsi//sub r/=93) planar waveguide resonator having a dimensions of 4.25/spl times/3/spl times/1 (mm) with unloaded quality factor of /spl cong/240 have been devised at the resonant frequency of 2 GHz. Two types (with and without attenuation poles at the both sides of the pass band) of low-profile and high performance 2-pole BPFs are designed and fabricated using two such physical resonators, each of which have dimensions of /spl cong/9/spl times/3/spl times/1 (mm). A precise design procedure is also described.
Keywords :
Q-factor; UHF filters; band-pass filters; code division multiple access; dielectric resonator filters; dielectric waveguides; passive filters; poles and zeros; silver; waveguide filters; 2 GHz; 2-pole band pass filters; Ag; Ag-coated planar resonator; TEM-mode BPF; W-CDMA application; attenuation poles; design procedure; low-profile resonator; planar dielectric waveguide resonator; quality factor; Attenuation; Band pass filters; Dielectrics; Electrodes; Electrooptical waveguides; Insertion loss; Multiaccess communication; Planar waveguides; Q factor; Resonant frequency;
Conference_Titel :
Microwave Symposium Digest. 2000 IEEE MTT-S International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-5687-X
DOI :
10.1109/MWSYM.2000.860935
