Pulse amplification apparatus and method
US5757241A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 31, 1996 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | Dec 31, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/198
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An electromagnetic radiation reflection amplifier capable of amplifying cw or pulsed signals has a pair of cw oscillators operated under injection locking conditions. Diversion of oscillator power to a separate signal path during the off time of the input pulse is achieved through purely passive means; no active control devices are utilized. The device can be implemented for amplification of microwave, millimeter wave or optical signals. The amplifier comprises a 180-degree hybrid coupler, a matched pair of cw oscillator modules, a waveguide discontinuity, a waveguide termination, and an optional signal input element. For a magic-tee hybrid coupler, the cw oscillator modules are mounted on the ports of the symmetrically positioned waveguide arms and the waveguide discontinuity is located within either the sum arm or difference waveguide arm intermediate its ends. The waveguide termination is located at the port of that arm, and the port of the other non-symmetric arm of the magic-tee becomes the input/output port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.