4.5dBi antenna, PCB antenna, matched with UHF RFID Fixed reader, connected with RFID ... Bidirectional Antenna circular antenna, good option for books, files management. PCB board structure, ground protection, , easy to installThis Antenna works with UHF ... .3Horizontal 3dB Beam width70°Vertical 3dB Beam width30°Impedance50ΩMaterialPCB PCB UHF RFID Antenna