UM
A wideband circularly polarized patch antenna using λ/4 and λ/2 resonators
Wu Q.-S.; Zhang X.; Zhu L.
2018-11-29
Source PublicationRFID-TA 2018 - 2018 IEEE International Conference on RFID Technology and Applications
AbstractA wideband circularly polarized (CP) patch antenna with enhanced axial ratio (AR) bandwidth via co-design of feeding network is proposed in this paper. One$\lambda$ /4 resonator and one $\lambda$ /2 resonator are introduced and coupled in proximity to two orthogonal points of a square patch radiator to excite two orthogonal modes. These two resonators not only function as impedance matching elements to achieve equal magnitude of two orthogonal modes in a wide frequency band, but also provide the required 90° phase difference. In this way, two minima in the AR response appear, resulting in extended AR bandwidth. Simulated results demonstrate that 2% 3-dB AR bandwidth is achieved on a low profile of 0.014 $\lambda{0}$.
KeywordCircularly polarized Wideband λ/4 and λ/2 resonators
DOI10.1109/RFID-TA.2018.8552813
URLView the original
Language英語
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Document TypeConference paper
CollectionUniversity of Macau
AffiliationUniversidade de Macau
Recommended Citation
GB/T 7714
Wu Q.-S.,Zhang X.,Zhu L.. A wideband circularly polarized patch antenna using λ/4 and λ/2 resonators[C],2018.
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