Array antenna
US9257753B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2014 |
| Grant date | Feb 9, 2016 |
| Priority date | — |
| Expiry date | Jun 21, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q25/02
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An array antenna includes radiating antenna elements arranged to form an antenna aperture, the radiating antenna elements including a first group and a second group of radiating antenna elements; a corporate feed network configured to feed the radiating antenna elements, wherein the corporate feed network includes a 4-port device including a sum port, a difference port, a first signal port and a second signal port, with the first signal port coupled via the corporate feed network to the first group of radiating elements and the second signal port coupled via the corporate feed network to the second group; a first phase shift element proximal to the antenna aperture to introduce a first predetermined phase shift to the first group of radiating antenna elements; and a second phase shift element proximal to the second signal port to introduce a second predetermined phase shift to the second group of radiating antenna elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.