Temperature calibration system for a ferroelectric phase shifting array antenna
US5680141A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 1995 |
| Grant date | Oct 21, 1997 |
| Priority date | — |
| Expiry date | May 31, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/267
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Telecommunication systems and methods for driving a phased-array antenna ing a plurality of spaced antenna elements that radiate and receive a beam of radio frequency signals. Each of a plurality of ferroelectric phase shifters connect to a different one of the antenna elements. A signal processor system, having a receiver and a frequency synthesizer communicates with the phase shifters under the control of a data processor system. A joystick connects to the data processor system for permitting manual input of beam steering information thereto. The data processor system responds to the joystick inputs by controlling the relative phase shifts of the signals propagating in the ferroelectric phase shifters. The system further includes a temperature sensor circuit for sensing the temperature of each of the ferroelectric phase shifters. This temperature sensor circuit connects to the data processor system for inputting temperature information that the data processor system uses to calculate calibration error factors. The data processor system uses the joystick inputs and the calibration error factors to apply concurrent calibrated analog control voltages to the ferroelectric phase shift…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.