Miniaturized atomic frequency standard having both filter cell and absorption cell in resonator cavity
US4494085A · kind A · utility
21Cited by
8References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 28, 1982 |
| Grant date | Jan 15, 1985 |
| Priority date | — |
| Expiry date | Apr 28, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04F5/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical-physics package used in an atomic frequency standard is miniaturized and the performance thereof improved. The optical-physics package includes a microwave cavity in which is positioned a filter cell and an absorption cell, preferably located in close physical proximity to one another. The microwave cavity may double as an oven, and is preferably designed to operate in the TE111 mode with "E" probe microwave coupling. Dielectric loading is provided by the filter cell and absorption cell to reduce the internal dimensions of the microwave cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.