Engineering topics
Publications and source records attributed to Hearn, C. P..
Modulator produces phase-modulated waveform having high modulating linearity. Technique is inherently wideband with respect to carrier frequency and can operate over decade carrier frequency range without adjustments. Circuit performance is both mathematically predictable and highly reproducible.
Wideband voltage controlled oscillator with high phase stability
Design and performance of polarization diversity combiner for two channels with uncorrelated noise voltages
Two or more series RLC circuits are used with a negative feedback amplifier to make a voltage variable oscillator. This combination results in high phase stability and optimum frequency modulation.