Antenna system for two-way UHF underground radio system
US6195561A · kind A · utility
42Cited by
11References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 3, 1998 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Jul 3, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/08
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna system for a multi-channel, two-way UHF underground communication includes a base radio station; a non-radiating coaxial cable attached to the transmit/receive connector on said base radio station; radiators affixed to said non-radiating coaxial cable at predetermined intervals along the length thereof, wherein said radiator is insulated from the center conductor of said coaxial cable; and bi-directional amplifiers spaced at predetermined intervals along the length of said coaxial cable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.