Chip-scale radio-frequency localization devices and associated systems and methods

A device comprising: a substrate; a semiconductor die mounted on the substrate; a transmit antenna fabricated on the substrate and configured to transmit radio-frequency (RF) signals at least at a first center frequency; a receive antenna fabricated on the substrate and configured to receive RF signals at least at a second center frequency different than the first center frequency; and circuitry integrated with the semiconductor die and configured to provide RF signals to the transmit antenna and to receive RF signals from the receive antenna.一种设备，其包括：基板；安装于该基板的半导体芯片（semiconductor die）；制作于基板之上、配置为至少以第一中心频率发射射频（RF）信号的发射天线；制作于基板之上、配置为至少以与第一中心频率不同的第二中心频率接收射频信号的接收天线；以及集成于该半导体芯片、配置为向发射天线提供射频信号并从接收天线获取射频信号的电路模块。