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US 11,112,489 B2Granted
Radar systems and methods having isolator driven mixer
AssigneeIntel Corporation
InventorsWoorim Shin, Christopher Hull, Stefano Pellerano
Life of this patent
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Abstract
Radar circuitry can include an isolator and a mixer. The isolator can isolate a transmission signal path and a reception signal path from each other, and generate a mixing (e.g. oscillation) signal based on a transmission signal. The isolator can be coupled to the mixer such that the drive signal drives the mixer (e.g. serves as the local oscillation signal of the mixer). The mixer mixes a received signal and the drive signal to generate a converted signal (e.g. a down-converted signal). The isolator can be a hybrid transformer or electrically balanced duplexer.
Claims13
A radar circuitry, comprising:
- an isolator configured to:
- isolate a transmission signal path and a reception signal path from each other;
- and
- generate a drive signal at a balanced port of the isolator based on a transmission signal on the transmission signal path that is received at a transmission signal port of the isolator;
- a mixer configured to mix a received signal on the reception signal path and the drive signal to generate a converted signal,
- wherein during signal transmission, the transmission signal on the transmission signal path is split between the balanced port and a common antenna port of the isolator, and
- wherein during signal reception, the received signal that is received via the common antenna port is split between the transmission port and a receiving port of the isolator that is coupled to the reception signal path;
- and
- an impedance tuner configured to adjust an impedance of the balanced port to match an input impedance of a common antenna that is coupled to the isolator via the common antenna port, the isolation provided between the transmission signal path and the reception signal path being dependent on the impedance matching between the balanced port and the common antenna port.
6 more elements
Dependencies are inferred from the claim text.