POLARIZATION INSENSITIVE ANTENNA FOR HANDHELD RADIO FREQUENCY IDENTIFICATION READERS

    公开(公告)号:CA2725867A1

    公开(公告)日:2009-12-03

    申请号:CA2725867

    申请日:2009-05-19

    Inventor: BELLOWS DAVID

    Abstract: A handheld radio frequency identification (RFID) reader includes a polarization insensitive antenna that enables simultaneous operation in two orthogonal polarization modes. The RFID reader includes an RF communication module and an antenna coupled to the RF communication module. The RF communication module is configured to process RF signals associated with operation of the RFID reader, and the antenna is configured to transmit and receive RF energy associated with operation of the RFID reader. The antenna includes a conductive loop element having a major longitudinal path, and a slot formed in the conductive loop element along the major longitudinal path. The conductive loop element is configured to operate as a first antenna polarized in a first orientation, and the slot is configured to operate as a second antenna polarized in a second orientation.

    ARRANGEMENT INCLUDING RIGID HOUSING AND DISPLAY

    公开(公告)号:CA2613948C

    公开(公告)日:2014-09-23

    申请号:CA2613948

    申请日:2006-05-26

    Abstract: Described is a device including a housing (350) and a display arrangement (320) . The housing (350) is integrally formed (i.e., a single-piece housing) and has a predefined substantially transparent area. The housing (350) has also at least one opening (352) . The display arrangement (320) is situated inside of the housing (350) and is inserted into the housing (350) through the opening (352) and aligned with the predefined area.

    POLARIZATION INSENSITIVE ANTENNA FOR HANDHELD RADIO FREQUENCY IDENTIFICATION READERS

    公开(公告)号:CA2725867C

    公开(公告)日:2013-08-13

    申请号:CA2725867

    申请日:2009-05-19

    Inventor: BELLOWS DAVID

    Abstract: A handheld radio frequency identification (RFID) reader includes a polarization insensitive antenna that enables simultaneous operation in two orthogonal polarization modes. The RFID reader includes an RF communication module and an antenna coupled to the RF communication module. The RF communication module is configured to process RF signals associated with operation of the RFID reader, and the antenna is configured to transmit and receive RF energy associated with operation of the RFID reader. The antenna includes a conductive loop element having a major longitudinal path, and a slot formed in the conductive loop element along the major longitudinal path. The conductive loop element is configured to operate as a first antenna polarized in a first orientation, and the slot is configured to operate as a second antenna polarized in a second orientation.

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