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A graphical design method for Iossless and lossy gain-compensating networks is presented, and the advantages of the use of this technique in the construction of microwave transistor amplifiers are discussed. The method is based on the use of a set of constant Sji circies plotted on the Smith Chart, and is easily automated on a personal computer. Two applications are presented: a two-stage amplifier with 20 dB in the 100-1100-MHz band and an ultra-broad-band lossy matched amplifier stage with 4 dB in the dc-16-GHz band.
Microwave Theory and Techniques, IEEE Transactions on (Volume:33 , Issue: 3 )
Date of Publication: Mar 1985