Accession Number:

ADP002445

Title:

Compact Rectangular Cavity for Rubidium Vapor Cell Frequency Standards,

Descriptive Note:

Corporate Author:

LITTON SYSTEMS INC WOODLAND HILLS CA GUIDANCE AND CONTROL SYSTEMS DIV

Personal Author(s):

• Williams,H. E.
• Kwon,T. M.
• McClelland,T.

Report Date:

1983-01-01

Pagination or Media Count:

6.0

Abstract:

A new 6.8 GHz microwave cavity design for use in rubidium vapor cell frequency standards is discussed. The design consists of a rectangular cavity operating in the TE101 mode, partially loaded with a low loss dielectric slab. This configuration combines the desirable H-field uniformity of conventional cylindrical TE011 cavities with the reduced size advantage of cylindrical TE111 cavities. Careful selection of dimensions and dielectric material actually result in a resonator substantially smaller than even the cylindrical TE111 cavity, yet without significant degradation of field uniformity. Test results for a cavity based on this design in an operational Rb frequency standard are presented. Author

Descriptors:

• *Frequency standards
• *Rubidium
• *Microwave frequency
• Vapors
• Dielectric properties
• Cavities
• Rectangular bodies
• Resonant frequency

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE