Temperature stabilized helical resonator

Details Temperature stabilized helical resonator Temperature stabilized helical resonator

1978-02-27

1980-05-27

Smith, Alfred E.

Wave transmission lines and networks

Resonators

Coaxial or shielded

333229, 333234, H01P 700

Patent

active

042052866

ABSTRACT:
The coil form for a helical resonator is comprised of two sections connected by a flexible joint. The coil form/winding assembly is positioned within a cavity such that the ends of the coil forms are affixed to the cavity walls. A tuning screw threads into the cavity wall in tuning relation to the coil.
The resulting resonator structure maintains a low frequency drift characteristic over a wide temperature range due to the fixed tuning screw to coil spacing. Strain to the structure due to thermal stress is relieved by the flexible joint.

REFERENCES:
patent: 3621484 (1971-11-01), Shult

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