Radio oscillating and radar systems
US7787773B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2006 |
| Grant date | Aug 31, 2010 |
| Priority date | — |
| Expiry date | Apr 10, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/0516
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
It is provided a radio oscillating system for oscillating a radio signal. The system has an optical modulator for oscillation, a modulating means for inputting a modulating signal of a frequency of fm into the optical modulator to modulate a carrier wave so as to interpose sideband waves onto the carrier wave at positions shifted with respect to the frequency of the carrier wave by the frequency “fm”; and an optical receiver for oscillation for receiving beam from the optical modulator and converting the beam into an electrical signal. The system further has a radiating means for radiating radio signal of a frequency of 2fm based on the electrical signal. An input voltage Vp-p applied on the optical modulator is 1.0 times or more and 1.99 times or less of a half-wavelength voltage Vπ of the optical modulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.