Chip-scale radio-frequency localization devices and associated systems and methods
摘要
說明書
Some embodiments provide for a device comprising: a transmit antenna configured to transmit, to a target device, a first radio-frequency (RF) signal having a first center frequency; a first receive antenna configured to receive, from the target device, a second RF signal having a second center frequency that is a harmonic of the first center frequency; a second receive antenna configured to receive, from the target device, 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 configured to obtain, using the first RF signal and the second RF signal, a first mixed RF signal indicative of a first distance between the device and the target device; and second circuitry configured to obtain, using the first and third RF signals, a second mixed RF signal indicative of a second distance between the device and the target device.
Some embodiments provide for a device comprise: a first receive antenna configured to receive a first radio-frequency (RF) signal having a first center frequency; a second receive antenna configured to receive a second RF signal having a second center frequency; a first transmit antenna configured to transmit a third RF signal having a third center frequency different from each of the first and second center frequencies; a second transmit antenna configured to transmit a fourth RF signal having a fourth center frequency different from each of the first, second, and third center frequencies; and circuitry comprising: a frequency mixer configured to generate a fifth RF signal by using the first RF signal and the second RF signal; first circuitry configured to generate the third RF signal using the fifth RF signal; and second circuitry configured to generate the fourth RF signal using the fifth RF signal.
