Millimeter-wave sourceless receiver
US10116396B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2017 |
| Grant date | Oct 30, 2018 |
| Priority date | — |
| Expiry date | Apr 28, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2210/006
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A receiver includes a planar antenna array including at least three antennas. Each antenna simultaneous receives a local oscillator (LO) signal from a near field region and a radio frequency (RF) signal from a far field region. Each antenna is coupled to a respective quasi-optical mixer. Each quasi-optical mixer includes only passive components and outputs a respective intermediate frequency (IF) signal. The receiver includes two six-port demodulators. Each six-port demodulator receives a different pair of IF signals as input and outputs signals representing baseband power of the pair of IF signals. Each six-port demodulator includes only passive components. The receiver also includes a processor to calculate direction of arrival (DoA) for the LO signal and the RF signal using the output from the six-port demodulators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.