HARMONIC RF TAG FOR WIRELESS MEASUREMENT OF MULTIPLE PRODUCTS

    公开(公告)号:US20240265230A1

    公开(公告)日:2024-08-08

    申请号:US18289971

    申请日:2022-05-04

    IPC分类号: G06K19/077 G06K19/067

    CPC分类号: G06K19/07786 G06K19/0672

    摘要: The harmonic tag includes a ring resonator circuit and may include a first ring microstrip disposed on a first side of a first dielectric substrate, a microstrip feedline spaced apart from and adjacent to the first ring microstrip and a ground plane disposed opposite the first ring microstrip and the microstrip feedline on a second side of the first dielectric substrate. The ring resonator circuit is tuned to resonate at an interrogation frequency. A dipole antenna circuit may include a dipole microstrip electrically coupled to the microstrip feedline through a first diode. The first diode causes the dipole microstrip to transmit a harmonic signal having a harmonic frequency twice the interrogation frequency.