Multiple antenna reflectors for microwave imaging and sounding
US6433752B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2001 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Apr 13, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q19/195
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for microwave imaging and sounding with large bandwidth radiometer reflector antennas in a compact form. The apparatus comprises a main reflector for reflecting a beam, a polarizer for polarizing the reflected beam into a first polarized beam and a second polarized beam, a first Frequency Selective Surface (FSS) reflecting a first selected frequency of the first polarized beam, a second FSS reflecting a second selected frequency of the second polarized beam, a first feed receiving the first selected frequency and a second feed receiving the second selected frequency. The method comprises reflecting a beam, polarizing the reflected beam into a first polarized beam and a second polarized beam, reflecting a first selected frequency of the first polarized beam, reflecting a second selected frequency of the second polarized beam, receiving the first selected frequency and receiving the second selected frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.