Array antenna
US8427372B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2009 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Oct 5, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/0254
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is an electronic scanning array antenna which can be used as a UWB radar having an occupied band of not less than 500 MHz. An impulse generator is connected to each of a plurality of antenna elements constituting the electronic scanning array antenna, and a transmission trigger time to each of the impulse generators connected to the antenna elements is changed, whereby the phase of radio waves emitted from an antenna is equivalently changed. Moreover, a transmission trigger repletion interval is changed to thereby control a direction of a beam emitted from the array antenna. As means of changing a transmission trigger timing to each of the impulse generators connected to the antenna elements, a method of changing a frequency of a transmission trigger pulse and a method of changing a pulse position are adopted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.