Millimeter wave phased array systems with ring slot radiator element
US7053847B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2004 |
| Grant date | May 30, 2006 |
| Priority date | — |
| Expiry date | Dec 14, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/064
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A phased array antenna structure capable of operation at millimeter-wave frequencies and having multiple ring slot radiator elements (10). The RF feed structure for each radiator element includes a feed via (28) extending part-way through a multi-layer structure (FIG. 3) on which the radiator elements (10) are formed and a strip line feed probe (30) extending from the via (28) toward the radiator element. A key feature facilitating high-frequency operation is the inclusion of multiple mode suppressors (32) surrounding the via (28) and providing a smooth transition from a coaxial mode of RF transmission to a strip line mode of RF transmission. The feed probe (30) is tailored to provide either a narrow-band or a wideband frequency characteristic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.