Dual frequency microstrip antenna structure
US3971032A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1975 |
| Grant date | Jul 20, 1976 |
| Priority date | — |
| Expiry date | Aug 25, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/24
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A conformal microstrip antenna structure formed by a plurality of separated spaced-apart electrically conducting elements on a dielectric substrate overlying a ground plane. The innermost edges of the separated conducting elements define two sets of two intersecting radiators which are fed by microstrip transmission circuits disposed within the space between the separated conducting elements to individually feed the various radiators and/or segments thereof from the common feed point. The dimensions of the conducting elements also determine the resonant frequency of the radiators and their relative phases such that dual frequency operation as well as circular and/or elliptical polarization of the received/transmitted electromagnetic radiation can be conveniently achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.