Title :
RF-circuit configurations and new SAW duplexers for single- and dual-band cellular radios
Author :
Hikita, M. ; Matsuura, N. ; Shibagaki, N. ; Sakiyama, K.
Author_Institution :
Central Res. Lab., Hitachi Ltd., Tokyo, Japan
Abstract :
Single-band and dual-band SAW antenna duplexers have been developed. The former constructed with R1 and T1 filters can be used in 800-MHz EGSM or 1.8-GHz PCN single-band system. The latter constructed with R1´s anti-diode switches can be used in the EGSM/PCN dual-band system. The required frequency characteristics as well as the module miniaturization have been achieved.
Keywords :
UHF antennas; antenna accessories; cellular radio; multiplexing equipment; personal communication networks; radio equipment; surface acoustic wave devices; 1.8 GHz; 800 GHz; EGSM; PCN; R1 filters; RF-circuit configurations; SAW antenna duplexers; SAW duplexers; T1 filters; anti-diode switches; dual-band cellular radios; frequency characteristics; module miniaturization; single-band cellular radios; Bandwidth; Diodes; Dual band; Frequency; Land mobile radio cellular systems; Personal communication networks; Radio spectrum management; SAW filters; Surface acoustic waves; Switches;
Conference_Titel :
Microwave Symposium Digest, 1999 IEEE MTT-S International
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
0-7803-5135-5
DOI :
10.1109/MWSYM.1999.780221
