Microwave sample-and-hold unit with transistor
US5012084A · kind A · utility
4Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1990 |
| Grant date | Apr 30, 1991 |
| Priority date | — |
| Expiry date | Jan 25, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C27/024
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a microwave (1 GHZ) sample-and-hold unit having a field-effect transistor, to which an input signal is applied, and a storage capacitor. The transistor is made of materials of the III-V group, such as GaAs or InP, and Its channel region is controlled by an optical control device formed by an optic fiber and a pulsed laser semiconductor. In order to reduce the switching time of the transistor, this transistor and the laser are both biased at points close to their thresholds. The disclosed device can be applied in signal processing, at frequencies of the order of 1 GHz.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.