Extensive experimental investigation applied at Ka band, of all VCO parameters including the effects of a sliding short circuit have confirmed the accuracy of the analysis. For example, a prediction of a 3.7 GHz or 13% tuning bandwidth at 28.5 GHz was experimentally confirmed. The accuracy of the analysis together with the rugged and modular VCO construction are useful for production technology of millimeter wave Gunn or IMPATT VCO's for Electronic Warfare or communications tunable local oscillator applications.
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