Method and system for propagation time measurement and calibration using mutual coupling in a radio frequency transmit/receive system
US10094914B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2016 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | Sep 18, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/4017
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system use the mutual coupling property of multiple antenna elements for measuring differences in propagation time among various signal paths involving antenna elements in a radio frequency transmit/receive system. The method and system alleviate the need for external test equipment by using the same hardware used in standard operation of the transmit/receive system for performing propagation time measurement through the generation, mutual coupling, and acquisition of a specially selected reference signal. In an embodiment involving calibration of various signal paths to realize matched propagation times, the signal energy returned through these various paths during standard system operation arrives for acquisition more closely coincident in time, increasing the instantaneous bandwidth of the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.