Broad-band directional antenna
US4811027A · kind A · utility
2Cited by
13References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 5, 1986 |
| Grant date | Mar 7, 1989 |
| Priority date | — |
| Expiry date | Feb 5, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/061
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A directional antenna is provided having an array of directional antenna elements arranged in at least one row. The directional antenna elements are activated in accordance with a predetermined pattern. The signal amplitudes on the receiving side are time-shifted to simulate a low-frequency signal for detection of deeper-lying anti-tank mines. Each directional antenna element has a pair of flat strips which lie close to each other at the base side and which proceed in parallel before diverging to a greater width toward the aperture side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.