Travelling wave antenna feed structures
US10230171B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Nov 22, 2016 |
| Grant date | Mar 12, 2019 |
| Priority date | — |
| Expiry date | Jan 17, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/22
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Techniques for implementing series-fed antenna arrays with a variable dielectric waveguide. In one implementation, coupling elements with optional controlled phase shifters are placed adjacent each radiating element of the array. To avoid frequency sensitivity of the resulting array, one or more waveguides have a variable propagation constant. The variable waveguide may use certain materials exhibiting this phenomenon, or may have configurable gaps between layers. Plated-through holes and pins can control the gaps; and/or a 2-D circular or a rectangular travelling wave array of scattering elements can be used as well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.