Method and apparatus for making phase stable microwave measurements
US4887313A · kind A · utility
6Cited by
8References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 27, 1987 |
| Grant date | Dec 12, 1989 |
| Priority date | — |
| Expiry date | Jan 27, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R29/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method and apparatus for making phase stable measurements of charateristics of microwave antennas and other devices utilizing an optical transmission path as a phase stable reference in order to identify phase errors along a radio frequency transmission path induced by flexing of a radio frequency transmitting cable as the antenna probe or antenna under test is moved in the course of testing. Similar apparatus and techniques are described for use with a harmonic mixer to gather receiver data which is free of phase errors caused by movement of the antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.