Method of measuring AAS EMF
US12058534B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2020 |
| Grant date | Aug 6, 2024 |
| Priority date | — |
| Expiry date | Jun 26, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/10
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Embodiments of a method for measurement of electromagnetic field strength at a point of interest in a coverage area of a 2-dimensional (2D) active antenna system (AAS). The 2D AAS transmits with a load factor of 100 percent. The 2D AAS sweeps a predefined range of azimuth and elevation angles, and azimuth and elevation directions which yield highest EMF at the point of interest are determined. First beamforming weights are determined based on the azimuth and elevation directions and the 2D AAS caused to apply the first beamforming weights. The 2D AAS sweeps a co-phasing angle from 0 to 360 degrees, and a co-phasing angle which yields highest EMF is determined. Second beamforming weights are determined based on azimuth and elevation directions and the co-phasing angle, and the 2D AAS caused to apply the second beamforming weights. The EMF strength at the point of interest is measured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.