Thermally compensating microwave cavity

Details Thermally compensating microwave cavity Thermally compensating microwave cavity

1992-09-04

1994-07-12

Mis, David

Oscillators

With distributed parameter resonator

331107DP, 331176, 333229, 333233, H03B 504, H03B 518, H03B 712, H03B 714

Patent

active

053292553

ABSTRACT:
A thermally compensating microwave cavity is provided. An active device that generates microwaves is disposed within this microwave cavity such that microwaves are emitted within the cavity. A first portion of these microwaves travels in one direction from the active device and forms a broad bandwidth signal. A section portion of the microwaves travels toward a reflecting member and is reflected. Once reflected, this second portion combines with and compensates the first portion. A temperature dependent bellows is utilized to displace the active device and the reflecting member relative to one another. Accordingly, as the signal emitted by the active device changes with temperature, the reflecting member is displaced by the bellows to properly reflect the second portion of the microwaves such that it combines with and properly compensates the signal.

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"Circuit Characterization of V-Band IMPATT Oscillators and Amplifiers", T. T. Fong, Kenneth P. Weller, David L. English, IEEE Transactions on Microwave Theory and Techniques. vol. MTT-24, No. 11, Nov. 1976.

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