Honeycomb cross-polarized load
US5311199A · kind A · utility
Inventors
Key dates
| Filing date | Oct 28, 1991 |
| Grant date | May 10, 1994 |
| Priority date | — |
| Expiry date | Oct 28, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q13/085
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An impregnated carbon film expanded into a honeycomb structure is employed in a tapered notch phased array antenna and is used to absorb cross-polarized incident fields to reduce the reflections from shorted TEM parallel plate modes existing between radiator elements of the antenna. The carbon loading used to achieve this absorption may comprise a resistive taper, or analog circuit or anisotropic elements having a predetermined tapering resistive profile. The honeycomb cross-polarized load of the present invention provides the electrical performance necessary to meet tapered notch phased array antenna electrical requirements while reducing the weight and cost of antennas in which it is employed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.