Mutual coupling based calibration technique for structurally deformed phased array apertures
US8842040B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2011 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | Oct 17, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/0245
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A phased array antenna includes a plurality of subarrays, and each subarray includes a panel, a plurality of primary antenna elements positioned on the panel, and at least one pair of sensor antenna elements positioned along a perimeter of the panel. One of the sensor antenna elements is a transmitting sensor antenna element and the other sensor antenna element is a receiving sensor antenna element. Changes in the mutual coupling between the two high frequency sensor antenna elements as a function of deformation of the subarrays provides a calibration signal outside of the operational band of the array while the array is operated and without requiring external calibration sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.