Single frequency low power rfid device

摘要: Methods, systems, and apparatuses for a reader transceiver circuit are described. The incorporates frequency generator, such as surface acoustic wave (SAW) oscillator. A incorporating the is configured to read tag at very close range, including while being in contact with tag. can be coupled various host devices variety of ways, located RFID (e.g., mobile or fixed position), computing device, barcode reader, etc. an module that attachable communicate device over distance. may include one more antennas, first antenna receive magnetic field component electromagnetic second electric wave. detector determine if positioned proximity object, operate trigger module, enable function module.