Quarter wave high voltage DC block covered with a polyurethane insulating layer
US5216395A · kind A · utility
1Cited by
3References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1992 |
| Grant date | Jun 1, 1993 |
| Priority date | — |
| Expiry date | Jun 3, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/20363
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A DC high voltage block comprising coupled lines etched upon a substrate and covered with a bubble-free, polyurethane insulating layer. The polyurethane insulating layer prevents DC voltage breakdown through air. This DC voltage block provides a planar, noncomplex circuit that can effectively provide voltage blockage up to 4500 volts. High voltage DC blocks of this nature have applications in vacuum tubes and IMPATT devices, as well as ferro-electric or electro-optic phase shifters. They are also employed to protect bias tees and electrical devices that employ bias tees.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.