Calibration apparatus for a switchable antenna array, and an associated operating method
US7132979B2 · kind B2 · utility
13Cited by
26References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 6, 2003 |
| Grant date | Nov 7, 2006 |
| Priority date | — |
| Expiry date | Jun 6, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/267
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A calibration device for a switchable antenna array, distinguished by the following improvements provides at least two inputs of two or more available inputs of the beam forming network fed simultaneously and/or jointly and/or in the same phase. The antenna elements have been trimmed in advance in order to produce intermediate lobes or further different azimuth beam directions, such that the individual lobes which are produced when at least two inputs are connected can be added with the correct phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.