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GaAs m.e.s.f.e.t. linear power-amplifier stage giving 1 W

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3 Author(s)
Camisa, R.L. ; RCA Laboratories, David Sarnoff Research Centre, Princeton, USA ; Goel, J. ; Drukier, I.

A balanced GaAs m.e.s.f.e.t. power stage has been developed for the 7¿8 GHz satellite communication frequency band. At 7.5 GHz, the output power at 1 dB comparession 1 W with a power added efficiency of 37%. The small-signal gain was 6.65 ± 0.45 dB across the frequency band. The small-signal gain, phase, group delay and input and output v.s.w.r. as function of frequency are described. Large-signal gain saturation and 3rd-order intermodulation distrotion measurements are also presented.

Published in:

Electronics Letters  (Volume:11 ,  Issue: 24 )