Title :
A new balanced-type RF-band SAW filter using SAW resonators
Author :
Taguchi, Yasuhiro ; Seki, Satoshi ; Onishi, Kohei ; Eda, K.
Author_Institution :
Mater. & Dev. Lab., Matsushita Electr. Ind. Co. Ltd., Japan
Abstract :
A new balanced-type RF-band (950 MHz) surface acoustic wave (SAW) filter using SAW resonators for use in portable telephones is presented. This SAW filter has balanced input and output terminals. Based on the computer simulation, balanced-type SAW filters having a pass-band at 950 MHz were fabricated. The obtained characteristics showed excellent characteristics such as low insertion loss, wide bandwidth, high attenuation at stopbands, and small VSWR. Using the SAW filter, one can realize balanced-type RF circuits in portable telephones.<>
Keywords :
UHF filters; cordless telephone systems; surface acoustic wave resonator filters; surface acoustic wave resonators; 950 MHz; SAW filter; SAW resonators; UHF filter; balanced-type; portable telephones; surface acoustic wave filter; Acoustic waves; Attenuation; Band pass filters; Bandwidth; Computer simulation; Insertion loss; Resonator filters; SAW filters; Surface acoustic waves; Telephony;
Conference_Titel :
Microwave Symposium Digest, 1995., IEEE MTT-S International
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-2581-8
DOI :
10.1109/MWSYM.1995.405904
