Single UHF/VHF antenna system
US4268834A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 24, 1977 |
| Grant date | May 19, 1981 |
| Priority date | — |
| Expiry date | Mar 24, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H7/461
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Serially connected UHF and VHF tuners and control of the lead lengths of the conductors to the tuners from the antenna permit utilization of a single antenna for both the UHF and VHF tuners without need for a crossover network. If the lead lengths are selected to present minimal impedance at the highest UHF frequencies to be received, the intrinsic input impedance for each tuner can be utilized as the crossover network, allowing UHF signals to be applied to the UHF tuner and VHF signals to be applied to the VHF tuner. By use of both external and internal leads in conjunction with a terminal block, each of the tuners is made available for dual antenna operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.