Broadband high -gain circular polarization RFID antenna

The utility model discloses a broadband high -gain circular polarization RFID antenna relates to the communication technology field, including metal radiation piece, oscillator piece integrated configuration, metal reflecting plate and feed network, oscillator piece integrated configuration includes that first oscillator piece that the single face part covers copper and single face partially coverthe second oscillator piece of copper, nested setting of first oscillator piece and second oscillator piece vertical cross, is this antenna a coverability whole world UHF RFID working frequency band(840 960MHz), high -gain, staff compares, hangs down the general circular polarization RFID antenna of standing wave, antenna height only is 0.1 lambda, and metal radiation piece size only is 0.35 lambda, has to hang down to shell the face small -bore characteristics, the easily system integration, feed network comprises coaxial cable, and antenna structure is succinct, easily equipment, and havethe cost advantage. 本实用新型公开