Systems for multi-band radar based sensing

Patent metadata

Field	Value
Publication number	US-11298037-B2
Application number	US-201916719134-A
Country	US
Kind code	B2
Filing date	Dec 18, 2019
Priority date	Dec 18, 2018
Publication date	Apr 12, 2022
Grant date	Apr 12, 2022

Abstract

Devices, systems, and methods for multi-band radar sensing are disclosed. In an embodiment, an integrated circuit device includes transmit components and receive components, a low-band transmit interface connected to output a first signal at a low-band frequency, a high-band transmit interface connected to output a second signal at a high-band frequency, a low-band receive interface connected to receive a third signal at the low-band frequency, a high-band receive interface connected to receive a fourth signal at the high-band frequency, and mixers connected to upconvert the first signal at the low-band frequency to the second signal at the high-band frequency for transmission from the high-band transmit interface and to downconvert the fourth signal at the high-band frequency received at the high-band receive interface to a fifth signal at the low-band frequency, wherein the upconversion and the downconversion are implemented using a conversion signal at a conversion frequency.

First claim

What is claimed is:

1. An integrated circuit device comprising:
transmit components and receive components;
at least one low-band transmit interface connected to a first transmit component to output a first signal at a low-band frequency;
at least one high-band transmit interface connected to a second transmit component to output a second signal at a high-band frequency;
at least one low-band receive interface connected to a first receive component to receive a third signal at the low-band frequency;
at least one high-band receive interface connected to a second receive component to receive a fourth signal at the high-band frequency; and
mixers connected to upconvert the first signal at the low-band frequency to the second signal at the high-band frequency for transmission from the high-band transmit interface and to downconvert the fourth signal at the high-band frequency received at the high-band receive interface to a fifth signal at the low-band frequency, wherein the upconversion and the downconversion are implemented using a conversion signal at a conversion frequency.

2. The integrated circuit device of claim 1 , wherein the low-band frequency is in the range of 2-6 GHz, the high-band frequency is in the range of 122-126 GHz, and the conversion frequency is 120 GHz.

3. The integrated circuit device of claim 1 , wherein the low-band frequency is in the range of 2-6 GHz, the high-band frequency is in the range of 22-26 GHz, and the conversion frequency is 20 GHz.

4. The integrated circuit device of claim 1 , further comprising a second receive mixer connected to upconvert the first signal at the low-band frequency with an intermediate frequency to output a sixth signal at the low-band frequency plus the intermediate frequency.

5. The integrated circuit device of claim 4 , further comprising a third receive mixer connected to downconvert the third signal at the low-band frequency and the fifth signal at the low-band frequency with the sixth signal at the low-band frequency plus the intermediate frequency to produce a seventh signal at the intermediate frequency.

6. The integrated circuit device of claim 1 , further comprising:
a second receive mixer connected to upconvert the first signal at the low-band frequency with an intermediate frequency to output a sixth signal at the low-band frequency plus the intermediate frequency;
a third receive mixer connected to downconvert the third signal at the low-band frequency and the fifth signal at the low-band frequency with the sixth signal at the low-band frequency plus the intermediate frequency to produce a seventh signal at the intermediate frequency; and
a baseband interface connected to receive the seventh signal.

7. The integrated circuit device of claim 6 , wherein the low-band frequency is in the range of 2-6 GHz, the high-band frequency is in the range of 122-126 GHz, and the conversion frequency is 120 GHz.

8. The integrated circuit device of claim 7 , wherein the first signal is stepped across the 2-6 GHz frequency range.

9. The integrated circuit device of claim 8 , wherein the intermediate frequency is 2.5 MHz.

10. The integrated circuit device of claim 6 , wherein the low-band frequency is in the range of 2-6 GHz, the high-band frequency is in the range of 22-26 GHz, and the conversion frequency is 20 GHz.

11. The integrated circuit device of claim 10 , wherein the first signal is stepped across the 2-6 GHz frequency range.

12. The integrated circuit device of claim 11 , wherein the intermediate frequency is 2.5 MHz.

13. The integrated circuit device of claim 1 , wherein the transmit components, the receive components, and the mixers are fabricated into a semiconductor substrate of the integrated circuit device.

14. The integrated circuit device of claim 13 , wherein the transmit components include power amplifiers and the receive components include low-noise amplifiers.

15. The integrated circuit device of claim 1 , further comprising a frequency multiplier configured to generate the conversion signal at the conversion frequency from a pre-conversion signal at a pre-conversion frequency.

16. An integrated circuit device comprising:
transmit components and receive components;
at least one low-band transmit interface connected to a first transmit component to output a first signal at a low-band frequency;
at least one high-band transmit interface connected to a second transmit component to output a second signal at a high-band frequency;
at least one low-band receive interface connected to a first receive component to receive a third signal at the low-band frequency;
at least one high-band receive interface connected to a second receive component to receive a fourth signal at the high-band frequency; and
means for upconverting the first signal at the low-band frequency to the second signal at the high-band frequency for transmission from the high-band transmit interface and downconverting the fourth signal at the high-band frequency received at the high-band receive interface to a fifth signal at the low-band frequency, wherein the upconversion and the downconversion are implemented using a conversion signal at a conversion frequency.

17. An integrated circuit device comprising:
transmit components and receive components;
at least one low-band transmit interface connected to a first transmit component to output a first signal at a low-band frequency;
at least one high-band transmit interface connected to a second transmit component to output a second signal at a high-band frequency;
at least one low-band receive interface connected to a first receive component to receive a third signal at the low-band frequency;
at least one high-band receive interface connected to a second receive component to receive a fourth signal at the high-band frequency;
a transmit mixer connected to upconvert the first signal at the low-band frequency to the second signal at the high-band frequency for transmission from the high-band transmit interface; and
a receive mixer connected to downconvert the fourth signal at the high-band frequency received at the high-band receive interface to a fifth signal at the low-band frequency;
wherein the transmit mixer and the receive mixer are connected to receive a conversion signal at a conversion frequency.

18. An integrated circuit device comprising:
transmit components and receive components;
at least one low-band transmit interface connected to a first transmit component to output a first signal at a low-band frequency;
at least one medium-band transmit interface connected to a second transmit component to output a second signal at a medium-band frequency;
at least one high-band transmit interface connected to a third transmit component to output a third signal at a high-band frequency;
at least one low-band receive interface connected to a first receive component to receive a fourth signal at the low-band frequency;
at least one medium-band receive interface connected to a second receive component to receive a fifth signal at the medium-band frequency;
at least one high-band receive interface connected to a third receive component to receive a sixth signal at the high-band frequency; and
mixers connected to upconvert the first signal at the low-band frequency to the second signal at the medium-band frequency for transmission from the medium-band transmit interface, or to upconvert the first signal at the low-band frequency to the third signal at the high-band frequency for transmission from the high-band transmit interface, and to downconvert t

Assignees

• Movano Inc

Inventors

• Leabman Michael A

Classifications

• H04B7/06

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• A61B5/742

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• A61B5/02444

  Details of sensor (A61B5/02427 takes precedence) · CPC title

• A61B5/681

  Wristwatch-type devices · CPC title

• A61B5/7257

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