Electronic beam steering of active arrays with phase-locked loops
US5523764A · kind A · utility
32Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1994 |
| Grant date | Jun 4, 1996 |
| Priority date | — |
| Expiry date | Aug 23, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/22
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An electronic beam steering technique for active arrays uses a single balanced diode mixer phase-locked loop connected between adjacent oscillators. Each oscillator has its own antenna that radiates energy into free space so the phase difference between oscillators determines the direction of the main radiating beam. An offset voltage added to the phase-locked loop controls the phase difference and thus the beam direction, providing over 100.degree. of adjustable phase difference between adjacent oscillators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.