Abstract:A new method is presented which allows the design of a medium power MESFET amplifier stage in the 3.7 -4.2 GHz communication band using a simple and universal feedback network. Using a commercially avalaible Nippon Electric Co. NE-464194 MESFET, an amplifier stage has been constructed using thick-film microstrip circuitry. A gain of 8 ± 0.3 dB has been obtained, with input and output VSWR less than 2. Power output at 1 dB compression is 22.5 dBm with an 3er O.I.P. of 33 dBm. Noise figure is 4.7 dB. The method … Show more
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