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AssigneeHughes Aircraft Company
InventorsGary R. Weaver, Dana H. Theis, Bernard L. Walsh, Jr., Bryce M. Smith
Estimating the term…
A voltage controlled oscillator is tuned with a network comprising two varactor diodes and two transmission lines. By selecting appropriate values of varactor capacitance and transmission line length and width the overall reactance of the network is such that, when a varactor tuning voltage is varied, the output frequency of the voltage controlled oscillator will vary in an fashion with respect to the tuning voltage. Such a voltage controlled oscillator is gain compensated and exhibits a controlled modulation sensitivity over a range of frequencies. If the required frequency range of the oscillator is known beforehand, an alternate embodiment of the invention may be employed in which one of the varactor diodes is replaced with a fixed capacitor having a suitable value for the desired frequency range.
A method of tuning a voltage controlled oscillator to provide a selectable modulation sensitivity, said oscillator comprising an active element with feedback and a tuning circuit connected to said active element for inducing oscillation, said method comprising the steps of:
A voltage controlled oscillator providing an output frequency having a controllable modulation sensitivity curve, said oscillator comprising;
Dependencies are inferred from the claim text.