Systems for multi-band radar based sensing

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.

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.

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 the fifth signal at the medium-band frequency received at the medium-band receive interface to a seventh signal at the low-band frequency or to downconvert the sixth signal at the high-band frequency received at the high-band receive interface to an eighth signal at the low-band frequency, wherein the upconversion and the downconversion corresponding to the medium-band frequency are implemented using a conversion signal at a first conversion frequency and wherein the upconversion and the downconversion corresponding to the high-band frequency are implemented using a conversion signal at a second conversion frequency.

A radio frequency system comprising:

• a radio frequency (RF) integrated circuit (IC) device including:
• 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;
• 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;
• a low-band transmit antenna connected to the at least one low-band transmit interface and tuned to the low-band frequency;
• a high-band transmit antenna connected to the at least one high-band transmit interface and tuned to the high-band frequency;
• a low-band receive antenna connected to the at least one low-band receive interface and tuned to the low-band frequency;
• a high-band receive antenna connected to the at least one high-band receive interface and tuned to the high-band frequency.