Broadband dipole antenna system with coaxial feed-line coated with ferrite particles to reduce line currents
US4218687A · kind A · utility
6Cited by
5References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1977 |
| Grant date | Aug 19, 1980 |
| Priority date | — |
| Expiry date | Oct 31, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/10
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
This disclosure deals with a three-element unit array (or stacked groups of the same) that enables the use of very large length-to-diameter dipole elements to cover broad frequency bands, greater than 2:1 in frequency ratio, by novel feed structures exciting the element gaps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.