Cascaded radar system
AssigneeInfineon Technologies AG
InventorsMartin Dechant, Josef Kulmer, George Efthivoulidis
Life of this patent
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Abstract
The present disclosure relates to a cascaded radar system. The cascaded radar system includes a primary MMIC and a secondary MMIC coupled to the primary MMIC via a signal channel. The primary MMIC is configured to combine a LO signal with at least a second signal to generate a combined LO signal and to transmit the combined LO signal to the secondary MMIC via the signal channel. The secondary MMIC is configured to receive the combined LO signal via the signal channel, separate the LO signal and at least the second signal from the combined LO signal, and perform radar operations based on the LO signal and at least the second signal.
Claims18
A cascaded radar system, comprising:
- a primary monolithic microwave integrated circuit (MMIC);
- a secondary MMIC coupled to the primary MMIC via a signal channel;
- wherein the primary MMIC is configured to:
- combine a local oscillator (LO) signal with at least a second signal to generate a combined LO signal, and
- transmit the combined LO signal to the secondary MMIC via the signal channel;
- and
- wherein the secondary MMIC is configured to:
- receive the combined LO signal via the signal channel,
- separate the LO signal and at least the second signal from the combined LO signal, wherein separating the LO signal from the combined LO signal comprises regenerating the LO signal from the combined LO signal, and wherein separating at least the second signal from the combined LO signal comprises demodulating, using the regenerated LO signal, at least the second signal from the combined LO signal;
- and
- perform radar operations based on the LO signal and at least the second signal.
A monolithic microwave integrated circuit (MMIC) for a cascaded radar system, the MMIC comprising:
- a local oscillator (LO) circuit configured to generate a LO signal;
- a combiner circuit configured to combine the LO signal with at least a second signal to obtain a combined LO signal;
- and
- an interface configured to transmit the combined LO signal to a further MMIC, the further MMIC to regenerate the LO signal from the combined LO signal and demodulate, using the regenerated LO signal, at least the second signal from the combined LO signal.
A monolithic microwave integrated circuit (MMIC) for a cascaded radar system, the MMIC comprising:
- an interface configured to receive a combined local oscillator (LO) signal comprising an LO signal combined with at least a second signal;
- a separator circuit configured to separate the LO signal and at least the second signal from the combined LO signal, wherein separating the LO signal from the combined LO signal comprises regenerating the LO signal from the combined LO signal, and wherein separating at least the second signal from the combined LO signal comprises demodulating, using the regenerated LO signal, at least the second signal from the combined LO signal;
- and
- a radar processing circuit configured to perform radar processing based on the LO signal and at least the second signal.
Dependencies are inferred from the claim text.