Switchable multi-frequency dielectric resonator oscillator

Details Switchable multi-frequency dielectric resonator oscillator Switchable multi-frequency dielectric resonator oscillator

1985-12-16

1987-03-10

Grimm, Siegfried H.

Oscillators

With distributed parameter resonator

Parallel wire type

331117D, 331117FE, 331179, H03B 518

Patent

active

046493549

ABSTRACT:
A switchable multi-frequency dielectric resonator oscillator that generates microwave energy at any of several available frequencies is disclosed. The oscillator includes a transistor that is operable for oscillation at a frequency determined by a feedback resonator connected to its control terminal, and switching means for selectively connecting any one of a plurality of feedback resonators to the control terminal of the transistor. The oscillation frequency of the oscillator is determined by the resonant frequency of whichever of the feedback resonators is connected to the control terminal of the transistor through the switching means. It is preferred to utilize dielectric resonators as the feedback resonators, a field effect transistor as the transistor, and PIN diodes as the switching means.

REFERENCES:
patent: 3969681 (1976-07-01), Fincke
patent: 4078210 (1978-03-01), Lewis
patent: 4442415 (1984-04-01), Ashida
patent: 4484156 (1984-11-01), Khanna et al.

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