Subminiature microwave cavity
US6133800A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 2, 1999 |
| Grant date | Oct 17, 2000 |
| Priority date | — |
| Expiry date | Aug 2, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/26
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An extremely small and inexpensively manufactured physics package for an atomic frequency standard can be provided with a microwave cavity having non-critical dimensions that is driven in a substantially TEM mode by a lumped LC means, the cavity resonant frequency being primarily determined by the lumped LC means. The lumped LC means can be any structure or combination of elements providing, at a selected microwave reference frequency, a resonant inductance and capacitance. Examples of such lumped LC means include, preferably, a rod or wire conductively attached to a wall of the microwave cavity as a lumped inductance and extending into the cavity to form, at its other end, a gap with an opposing cavity wall as a lumped capacitance; or a pair of rods or wires conductively attached to opposing walls and extending therefrom as a lumped inductance to form a gap therebetween as a lumped capacitance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.