Chip-scale radio-frequency localization devices and associated systems and methods
摘要
說明書
Some embodiments provide for a method comprising: generating radio-frequency (RF) signal synthesis information; generating a first RF signal using the RF signal synthesis information; transmitting the first RF signal to a target device using a transmit antenna; after transmitting the first RF signal, receiving a second RF signal from the target device using a first receive antenna; generating a third RF signal using the RF signal synthesis information; receiving a fourth RF signal from the target device using a second receive antenna; generating, using the first RF signal and the second RF signal, a first mixed RF signal indicative of a first distance between the first receive antenna and the target device; and generating, using the third RF signal and the fourth RF signal, a second mixed RF signal indicative of a second distance between the second receive antenna and the target device.
Some embodiments provide for a device comprising: a receive antenna configured to receive a first radio-frequency (RF) signal having a first center frequency; a first transmit antenna configured to transmit a second RF signal having a second center frequency that is a harmonic of the first center frequency; a second transmit antenna configured to transmit a third RF signal having a third center frequency that is a harmonic of the first center frequency and is different from the second center frequency; first circuitry, coupled to the receive antenna and to the first transmit antenna, configured to generate the second RF signal using the first RF signal and provide the second RF signal to the first transmit antenna for transmission; and second circuitry, coupled to the receive antenna and to the second transmit antenna, configured to generate the third RF signal using the first RF signal and provide the third RF signal to the second transmit antenna for transmission.
