Chip-scale radio-frequency localization devices and associated systems and methods
摘要
說明書
Some embodiments provide for a device, comprising: a substrate; a first transmit antenna fabricated on the substrate and configured to transmit radio frequency (RF) signals circularly polarized in a first rotational direction; a first receive antenna fabricated on the substrate and configured to receive RF signals circularly polarized in a second rotational direction different from the first rotational direction; a second receive antenna fabricated on the substrate and configured to receive RF signals circularly polarized in the first rotational direction; and a second transmit antenna fabricated on the substrate and configured to transmit RF signals circularly polarized in the second rotational direction; a semiconductor die mounted to the substrate and coupled to the first transmit antenna, the first receive antenna, the second transmit antenna, and the second receive antenna, the semiconductor die comprising: interrogator circuitry configured to provide RF signals to the first transmit antenna and to receive RF signals from the first receive antenna; and target device circuitry configured to receive RF signals from the second receive antenna and provide RF signals to the second transmit antenna.
