Telescopic antenna extended by coaxial cable feed
US4647941A · kind A · utility
22Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 25, 1984 |
| Grant date | Mar 3, 1987 |
| Priority date | — |
| Expiry date | Jun 25, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q5/40
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A plural band telescopic antenna, including an added band much higher than the frequencies of the AM/FM band, is realized by making one telescopic section into a center-fed, high frequency antenna and using its coaxial cable feed line for also coupling mechanical extension and retraction forces to that section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.