Circularly polarized waveguide slot array
US8957818B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 4, 2012 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | Jan 26, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/24
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A circularly polarized waveguide slot array includes first and second waveguide sections, the first waveguide section extending along a longitudinal axis, and including an antenna element for transmitting or receiving a circularly polarized signal. The second waveguide slot section is coupled side-to-side with the first waveguide slot section and extends along the longitudinal axis, the second waveguide slot section including an antenna element for transmitting or receiving the circularly polarized signal at a phase which is substantially complementary to the circularly polarized signal transmitted by or received by the first waveguide slot section. Further exemplary, the antenna element disposed on the first waveguide slot section is offset from said antenna element disposed on the second waveguide slot section substantially one half of a predefined guide wavelength λg along said longitudinal axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.