Printed circuit impedance transformation network with an integral spark gap
US4160210A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 30, 1977 |
| Grant date | Jul 3, 1979 |
| Priority date | — |
| Expiry date | Aug 30, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/09263
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A printed circuit board including a serpentine conductor formed thereon is mounted on a grounded metal chasis of the receiver's tuner so that the serpentine conductor and the grounded chassis form a transmission line for matching the impedances of the receiver's antenna network and tuner circuitry. Eyelets by which the serpentine conductor is connected to the antenna network and tuner circuitry extend through the dielectric material of the printed circuit into cutout areas in the chassis. Tabs extend from the peripheries of the cutout areas toward the eyelets to form spark gaps for discharging excessively high energies which may be induced by lightning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.