Phased array antenna for efficient radiation of heat and arbitrarily polarized microwave signal power
US5293171A · kind A · utility
Inventor
Key dates
| Filing date | Apr 9, 1993 |
| Grant date | Mar 8, 1994 |
| Priority date | — |
| Expiry date | Apr 9, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S343/02
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
According to the present invention, a thin, lightweight active phased array antenna panel is provided that efficiently radiates heat and arbitrarily polarized microwave signal power. The active array panel also efficiently reflects solar power so as to minimize solar heating. The active array panel includes a plurality of subarray elements each of which includes a plurality of aperture coupled patch radiators. The exterior surface of the subarray element is covered with silvered second surface mirrors to provide efficient radiation of heat in the presence of sunlight. A microstrip feed network in the subarray element is embedded in a dielectric material with a high thermal conductivity to efficiently distribute heat. The active array further includes an electronics module for each subarray element. The electronics module contains a solid state power amplifier, phase shifter and associated electronics mounted in a housing made of material with high thermal conductivity. Each electronics module and corresponding subarray element are thermally and electrically connected to each other and to a support structure assembly with silver-quartz mirrors bonded to the lower exterior surface. H…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.