Abstract
ABSTRACT In this article, a dual-port ceramic-based radiator is discussed and examined. A pentagon-shaped slot is used to excite the cylindrical-shaped dielectric, which stimulates HEM11δ mode in it. A meta-surface is placed over the dual-port radiator for transforming linear waves into circularly polarized (CP) waves from 5.51 to 6.01 GHz. LHCP antenna gain is also increased from 6.0 to 9.0 dBi within the working frequency range, after applying the proposed meta-surface. Experimental verification of antenna prototype confirms the working band of the proposed radiator from 5.25 to 6.17 GHz. The isolation between the ports is more than 20 dB, which is in the acceptable limit. The better value of far-field and diversity factors confirms the suitability of the proposed antenna in wireless LAN (5.5 GHz) applications.
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