Helical antenna for handheld UHF RFID reader

FREE-DOWNLOAD PV Nikitin… – RFID, 2010 research International …, 2010 –
Abstract— In this paper, we describe a compact high gain circularly polarized antenna for handheld
UHF RFID reader. The antenna is an axial mode helix operating in a backfire mode with ground
plane on top and reflector on the bottom. The described antenna has small footprint (85