SOME RESULTS FOR HIGHER-ORDER VARACTOR FREQUENCY MULTIPLIERS
MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB
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Analyses and numerical results for several frequency multipliers utilizing lossy abrupt junction varactors are presented. The theory is based on a series model of the varactor a constant resistance in series with a nonlinear elastance. This model proves to be a good characterization of practical varactors and permits us to perform closed form solutions for multipliers of any order. The problem is a nonlinear one and, consequently, it is not possible to make one solution which is applicable to all multipliers rather, we have to solve each multiplier separately by lengthy iterative numerical calculations. Therefore, only a limited number of the infinity of possibilities are treated.
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