Novel MIC bipolar frequency doublers having high gain, wide bandwidth and good spectral performance

Techniques for the design of high efficiency bipolar microwave frequency multipliers having wideband performance, high conversion gain and good spectral properties are presented. Experimental conversion gains of up to 7 dB have been attained for narrow bandwidths ( approximately=8%) and approximately 0 dB for wideband designs (40%) at C band. Corresponding fundamental and 3rd harmonic rejections are greater than 40 dBc. Extensive modeling and computer-oriented design have been employed utilizing harmonic balance.<
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