Push-push dielectric resonator oscillator
AssigneeTexas Instruments Incorporated
InventorsAnthony M. Pavio, Jr., Mark A. Smith
Life of this patent
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Abstract
A push-push broadband dielectric resonator oscillator circuit that operates in the K and Ka band frequency range has two oscillator circuits that oscillate at the same fundamental frequency. An antiphaseal relationship is maintained between the two oscillators through the use of a dielectric resonator and the desired frequency is obtained by vectorially combining the output signals of the two oscillators that have the antiphase relationship to obtain an output frequency that is twice the fundamental frequency of operation of each of the individual dielectric resonator oscillator circuits.
Claims4
A push-push dielectric resonator oscillator circuit, comprising:
- a first oscillator means for generating a first signal at a first frequency and phase;
- a second oscillator means for generating a second signal at the first frequency and at a second phase;
- a resonator means for maintaining an antiphase relationship between the first signal and the second signal;
- combining means for vectorially combining the first and second signals to obtain an output signal at a second frequency;
- and
- the first and second oscillator means each include a field effect transistor circuit including a field effect transistor having a gate, a drain and a source, a resonating circuit tuned to resonate at the first frequency as its fundamental frequency connected to the gate of the field effect transistor, a network circuit tuned for impedance matching at the first frequency and connected to the source, and an output circuit tuned for impedance matching at the first frequency and connected to the drain.
Dependencies are inferred from the claim text.