Title :
Single balanced mixer for SAW front-end module used in 800 MHz cellular radio
Author :
Hikita, Masayuki ; Akagi, T.
Author_Institution :
Central Res. Lab., hitachi Ltd., Tokyo, Japan
Abstract :
A new-type single balanced mixer which satisfies the specifications of E-TACS (extended total access communication system) ultra-wideband cellular radio has been developed. The circuit is constructed with a single ferrite hybrid coil, two GaAs FETs and an IF coil, which provide good spurious-response characteristics for arbitrary intermediate frequencies. Miniaturisation of the front-end module is achieved by using SAW filters and the above mixer.
Keywords :
cellular radio; mixers (circuits); modules; radio equipment; surface acoustic wave filters; 800 MHz; E-TACS; FETs; GaAs; IF coil; SAW; SAW filters; cellular radio; extended total access communication system; ferrite hybrid coil; front-end module; single balanced mixer; spurious-response characteristics;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19921305
