Cast core fabrication of helically wound antenna
US6181296A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1998 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Oct 29, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49016
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A cast core process is used to fabricate a very small, precision wound helical antenna having readily repeatable configuration parameters for use in a high GHz multi-element (e.g., phased array) antenna. A dielectric core member is formed by shaping a solid mandrel having a precision helical groove. After a mold is formed around the mandrel and cured, the mandrel is extracted, so that it may be used to make additional identical molds. A dielectric mixture is injected into the mold's cavity, and cured. The mold is then removed, and antenna wire is tightly wound and bonded into the dielectric core's helical groove. The antenna wire-wrapped core is then mechanically and electrically attached to a baseplate laminate structure, that includes a tuning circuit, so that the antenna may be physically mounted to a support member and connected to an associated transmit--receive module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.