Title :
Base station multicoupler design for UK cellular radio systems
Author :
Kazeminejad, S. ; Howson, D.P. ; Hamer, G.
Author_Institution :
University of Bradford, Schools of Studies in Electrical & Electronic Engineering, Bradford, UK
Abstract :
Intermodulation interference in a TACS cellular radio scheme can be reduced if the base station multicoupler operates at 900 MHz, with transmitter frequency spacings of 200 kHz. Such a combiner, using a high-Q cavity and a circu-lator in each branch, is described. This gives a total transmitter-transmitter isolation of 75 dB for an insertion loss of 2.5 dB.
Keywords :
cellular radio; radio transmitters; 2.5 dB; 200 kHz; 900 MHz; TACs; UK cellular radio systems; base station multicoupler; circulator; high- Q cavity; intermodulation interference; transmitter frequency spacings; transmitter-transmitter isolation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870575
