Frequency drift compensation due to temperature variations in di

Details Frequency drift compensation due to temperature variations in di Frequency drift compensation due to temperature variations in di

1976-01-07

1977-05-17

Gensler, Paul L.

Wave transmission lines and networks

Attenuators

333 83T, H01P 130, H01P 704

Patent

active

040244814

ABSTRACT:
The arrangement includes a TEM cavity having a shunt inductive rod having one end connected to one wall of the cavity and a capacitive gap between the other end of the rod and a member of the cavity with the cavity and gap being filled with a solid dielectric material. The thermal coefficient of expansion of the metal of the cavity, the metal of the rod and the dielectric are all selected so that in cooperation with a selected physical dimension of the gap and a selected length of the rod the rate of change of the inductive and capacitive reactance of the cavity are equalized during a temperature variation so that their difference remains zero at the operating frequency of the cavity.

REFERENCES:
patent: 2103515 (1937-12-01), Conklin et al.
patent: 2489433 (1949-11-01), Rambo

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