Expander system for pulse signals
US4812771A · kind A · utility
4Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1986 |
| Grant date | Mar 14, 1989 |
| Priority date | — |
| Expiry date | Jun 19, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/26
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An expander system for pulse signals with enhanced output power level is disclosed. The expander system, which comprises an expander filter and subsequently connected amplifier means, is provided with a supplementary 180 degree phase modulator connected in front of the expander filter. The phase modulator is switched on and off by a control signal delivered from a control stage in such a manner that, during the duration of a pulse signal, the phase modulator produces at least two phase shifts of approximately 180 degrees.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.