Release time:2019-08-08

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Affiliation of Author(s):UESTC

Teaching and Research Group:CRFICS

Journal:IEEE Transactions on Antennas and Propagation

Key Words:Antenna feeds , circular polarization , dipole antennas

Indexed by:Applied Research

Document Code:10.1109/TAP.2019.2905926

Volume:67

Issue:6

Page Number:4195-4199

Translation or Not:no

Date of Publication:2019-03-18

A low-profile and meandered crossed dipole antenna design for ultrahigh-frequency (UHF) radio-frequency identification (RFID) circularly polarized (CP) tag or handheld reader application is described in this communication. The crossed dipole CP condition is obtained by employing a series power divider meandered at the center of the dielectric substrate, and a surrounding ring which acts as a T-match network guarantees impedance matching. The series power divider alleviates the problem of using a balun when the crossed dipole is fed with a 50 Ω coaxial cable. A prototype has been manufactured o