FET switch for high frequency signals
US4628307A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 1984 |
| Grant date | Dec 9, 1986 |
| Priority date | — |
| Expiry date | Dec 18, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/691
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A solid state switching network includes three FET switches or devices arranged in a substantially "T" (or inverted "T") configuration. The network is controlled so that in an "OFF" or non-conducting state two of the FET switches are "OFF" and one is on. The high "OFF" impedance of the two FETs work against the low "ON" impedance of the third FET to provide an open circuit between the input and output of the switching network. The open circuit has greater isolation than is feasible with conventional circuits. The switching network or module is used in several configurations to couple data terminal equipment (DTE) to a communications highway.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.