Bootstrapped, piecewise-asymptotic directivity pattern control mechanism setting weighting coefficients of phased array antenna
US6397083B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2001 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | Feb 13, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/2605
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Weighting coefficients for a phased array antenna are iteratively refined to optimal values by a ‘bootstrapped’ process that starts with a coarse set of weighting coefficients, to which received signals are subjected, to produce a first set of signal estimates. These estimates and the received signals are iteratively processed a prescribed number of times to refine the weighting coefficients, such that the gain and/or nulls of antenna's directivity pattern will maximize the signal to noise ratio. Such improved functionality is particularly useful in association with the phased array antenna of a base station of a time division multiple access (TDMA) cellular communication system, where it is necessary to cancel interference from co-channel users located in cells adjacent to the cell containing a desired user and the base station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.