Back to results
US 12,736,653 B2Granted
MIMO radar transmission and signal processing
AssigneeNXP B.V.
InventorsCicero Silveira Vaucher, Feike Guus Jansen
Life of this patent
Estimating the term…
Abstract
A radar system includes a radar front end with multiple transmit antennas and multiple phase rotators. Each one of the multiple phase rotators is configured to output multiple phase modulated signals to a corresponding set of power amplifiers of a plurality of power amplifiers, where each power amplifier is coupled to one transmit antenna of the multiple transmit antennas.
Claims18
A radar front end comprising:
- a plurality of transmit antennas;
- a plurality of power amplifiers, each power amplifier coupled to one of the plurality of transmit antennas;
- and
- a plurality of phase rotators, each phase rotator of the plurality of phase rotators coupled to a corresponding set of the plurality of power amplifiers and configured to output multiple phase modulated signals to the corresponding set of the plurality of power amplifiers, the corresponding set including a first power amplifier and a second power amplifier, each phase rotator configured to output a first conjugate phase modulated signal to the first power amplifier and a second conjugate phase modulated signal to the second power amplifier.
1 more element
A method comprising:
- generating, at each phase rotator of a plurality of phase rotators, a plurality of phase modulated signals based on a phase control signal and a local oscillator signal;
- and
- inputting each phase modulated signal of the plurality of phase modulated signals to one of a plurality of power amplifiers, wherein each power amplifier of the plurality of power amplifiers is coupled to a corresponding transmit antenna;
- and
- wherein each phase rotator is coupled to a first power amplifier and a second power amplifier of the plurality of power amplifier and is configured to input a first conjugate phase modulated signal of the plurality of phase modulated signals to the first power amplifier and to input a second conjugate phase modulated signal of the plurality of phase modulated signals to the second power amplifier.
2 more elements
A radar system comprising:
- a radar front end comprising:
- a plurality of transmit antennas;
- a plurality of power amplifiers, each power amplifier coupled to one of the plurality of transmit antennas;
- a plurality of phase rotators, each phase rotator of the plurality of phase rotators configured to output multiple phase modulated signals to a corresponding set of the plurality of power amplifiers, the corresponding set including a first power amplifier and a second power amplifier, each phase rotator configured to output a first conjugate phase modulated signal to the first power amplifier and a second conjugate phase modulated signal to the second power amplifier;
- a controller to provide control signals to the plurality of phase rotators to generate signals for transmission via the plurality of transmit antennas;
- and
- a plurality of receive antennas to receive reflections of signals transmitted from the plurality of transmit antennas;
- and
- a radar processor to perform range and velocity estimates of a surrounding environment of the radar system based on digitized samples of the received reflections.
6 more elements
Dependencies are inferred from the claim text.