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
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;
Conference_Titel :
Microwave Conference, 1977. 7th European
Conference_Location :
Copenhagen, Denmark
DOI :
10.1109/EUMA.1977.332456
