High powered ferrite loaded helicopter antenna
US3936834A · kind A · utility
2Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1972 |
| Grant date | Feb 3, 1976 |
| Priority date | — |
| Expiry date | Jun 21, 1992 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/28
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An inductive, internally fed, ferrite-loaded antenna mounted at the geomecal center of a helicopter. The antenna is capable of transmitting in the 2-30 MHZ range with particularly good characteristics between 2.0-3.5 MHZ and employs the air frame as a radiating element. The radiation pattern is circular and extends for a radius greater than 200 mi. at an altitude of 300 feet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.