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This letter describes a practical 2-stage amplifier utilising active-medium-propagation (a.m.p.) devices. The unit is centred at 14.7 GHz with a 500 MHz bandwidth and 15 dB external gain. Comparable f.e.t. devices require Â¿ 0.5 Â¿m gate dimensions whereas the GaAs a.m.p. is fabricated with a 5.0 Â¿m gap.
Date of Publication: June 21 1979