Chip-scale radio-frequency localization devices and associated systems and methods
摘要
說明書
Some embodiments provide for a device comprising: a first transmit antenna configured to transmit, to a target device, a first radio-frequency (RF) signal having a first center frequency; a second transmit antenna configured to transmit, to the target device, a second RF signal having a second center frequency; a first receive antenna configured to receive, from the target device, a third RF signal having a third center frequency different from each of the first and second center frequencies; a second receive antenna configured to receive, from the target device, a fourth RF signal having a fourth center frequency different from each of the first, second, and third center frequencies; first circuitry configured to obtain, using the first RF signal, the second RF signal, and the third 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 RF signal, the second RF signal, and the fourth RF signal, a second mixed RF signal indicative of a second distance between the device and the target device.
Some embodiments provide for a device comprising: a substrate; an oscillator disposed on the substrate and configured to generate a first radio-frequency (RF) signal having a first center frequency; a dual band antenna mounted on the substrate and configured to receive, from an external device different from the device, a second RF signal having a second center frequency; and a frequency mixer disposed on the dual band antenna and configured to: generate a third RF signal having a third center frequency by mixing the first RF signal generated by the oscillator with the second RF signal received by the dual band antenna; and provide the third RF signal to the dual band antenna for transmission, wherein the dual band antenna is configured to transmit the third RF signal.
