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Resistive feedback in low-frequency FET amplifiers is an attractive method of simultaneously attaining gain flatness and excellent input-output VSWR over wide bandwidths. Combined with simple matching circnitry, the feedback approach allows the design of general-purpose utility amplifiers requiring much less chip area than when conventional matching techniques are used, The 1.5- by 1.5-mm chip desenbed in this paper provides 10-dB +-1-dB gain, excellent input and output VSWR, and saturated output power in excess of +20 dBm, from below 5 MHz to 2 GHz. The noise figure is approximately 2 dB when biased for minimum noise, with an associated gain of 9 dB.
Microwave Theory and Techniques, IEEE Transactions on (Volume:31 , Issue: 1 )
Date of Publication: Jan. 1983