DocumentCode
1970596
Title
A 7GHz Band GaAs FET Amplifier for the Straight-Through-Repeater
Author
Yokouchi, Haruo ; Izumi, Akira ; Dooi, Yoshikazu ; Takahara, Kazuo
Author_Institution
Department of Radio Transmission Systems, Fujitsu Limited, Kawasaki Japan
fYear
1977
fDate
5-8 Sept. 1977
Firstpage
382
Lastpage
386
Abstract
A 7GHz band GaAs FET amplifier for the straight-through-repeater has been developed. The amplifier has six single-ended stages, a 40dB linear gain, a 4 to 4.5dB noise figure and 17dBm saturated output power over a frequency range of 6.5 to 6.9GHz. The power consumption is lW maximum. Distortion for FM transmission is sufficiently low over a wide dynamic range up to saturation, so the repeater needs no additional AGC circuit for output limitting. 960 telephone channel FM Transmission noise loading test results show distortion to be less than 10pWOp up to saturation. For two FM/ FDM carrier transmission, the distortion is nearly the same as single carrier up to the 1dB compression point.
Keywords
Circuit testing; Dynamic range; Energy consumption; FETs; Frequency; Gain; Gallium arsenide; Noise figure; Power amplifiers; Power generation;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference, 1977. 7th European
Conference_Location
Copenhagen, Denmark
Type
conf
DOI
10.1109/EUMA.1977.332456
Filename
4131105
Link To Document