Chip-scale radio-frequency localization devices and associated systems and methods
摘要
說明書
In turn, interrogator 1100 may receive the second RF signal having the second center frequency (e.g., 120 GHz) using receive antenna 1120-1 and provide it to frequency mixer 1118-1 for mixing with a transformed signal obtained by transforming the first RF signal using frequency multiplier 1112-1, amplifier 1114-1, and filter 1116-1 and having the second center frequency. The frequency mixer 1118-1 may output a first mixed RF signal indicative of the distance between the interrogator 1100 and target device 1150. The interrogator 1100 may further receive the third RF signal having the third center frequency (e.g., 180 GHz) using receive antenna 1120-2 and provide it to frequency mixer 1118-2 for mixing with a transformed signal obtained by transforming the first RF signal using frequency multiplier 1112-2, amplifier 1114-2, and filter 1116-2 and having the third center frequency. The frequency mixer 1118-2 may output a second mixed RF signal indicative of the distance between the interrogator 1100 and target device 1150. The interrogator 1100 may further receive the fourth RF signal having the fourth center frequency (e.g., 240 GHz) using receive antenna 1120-n and provide it to frequency mixer 1118-n for mixing with a transformed signal obtained by transforming the first RF signal using frequency multiplier 1112-n, amplifier 1114-n, and filter 1116-n and having the fourth center frequency. The frequency mixer 1118-n may output a third mixed RF signal indicative of the distance between the interrogator 1100 and target device 1150.
