Microstrip antenna array
US4173019A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 2, 1978 |
| Grant date | Oct 30, 1979 |
| Priority date | — |
| Expiry date | Feb 2, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/062
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A microwave antenna comprising a dielectric sheet with a ground conductor on one side and an array of antenna elements on the other side. The elements are connected in shunt by feeder lines which are inclined to the direction of polarization of the antenna. The elements may be fed from a common central feed point. A suitable pattern of feeder lines comprises a plurality of parallel regularly-spaced lines inclined at a given angle to the direction of polarization and intersected by a single feeder line inclined at a mirror-inverted angle to the direction of polarization. The feeder lines are suitably of much higher impedance than the elements. Power tapering across the antenna apertures giving good polar diagrams is readily obtainable with such an arrangement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.