Antenna having cross polarization improvement using rotated antenna elements
US6670931B2 · kind B2 · utility
7Cited by
8References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 19, 2001 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | Dec 10, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q25/001
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A phased array antenna having a plurality of independent antenna modules which are arranged in a manner to significantly improve cross polarization isolation of the antenna. The antenna modules are arranged in rows and columns to form a grid arrangement. Each antenna module has a pair of radiating elements, and each module is rotated 90° from its adjacent antenna modules in each column. In this manner, the worst case cross polarization isolation performance of each module is not summed together at the same azimuth scan angle as every other module but rather is broken up over the entire azimuth scan angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.