Method of measuring the null angle of a monopulse antenna and apparatus therefor
US5181040A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1990 |
| Grant date | Jan 19, 1993 |
| Priority date | — |
| Expiry date | Oct 22, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R29/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of and an apparatus for measuring the null angle in the difference vs. sum pattern and in the difference pattern of a monopulse antenna. The null angle of the monopulse antenna in the radiation pattern is acquired by transmitting an RF signal from a plurality of antenna elements to the monopulse antenna, acquiring the sum signal and difference signals in the directions of the respective antenna elements and acquiring the null angle in accordance with the sum and difference signals. The apparatus comprises a rotator for changing the direction of the monopulse antenna and a transmitting antenna facing the monopulse antenna for transmitting a test signal to the monopulse antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.