Electronic switching device for an antenna switchable in the VHF and UHF frequency ranges
US5296867A · kind A · utility
7Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 5, 1992 |
| Grant date | Mar 22, 1994 |
| Priority date | — |
| Expiry date | Jun 5, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/145
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A switching device for adjusting the impedance of a self-inductance (3) forming part for example of the radiator of a VHF/UHF antenna for aircraft switchable by short-circuiting a part of the self-inductance. A PIN diode (12) is raised to a blocking or a transmitting voltage in response to control signals which are transmitted thereto by an optical link (8). Preferably the optical signals are transmitted to a hybrid opto-electronic circuit, which renders the PIN diode operative in conjunction with insulated conductors (11, 13) plated on the self-inductance and raised to the desired voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.