Abstract
A distinctly compact triple band offset field rectangular patch monopole antenna with metamaterial unit cell is presented. Complementary split ring resonator (CSRR) is used as a metamaterial unit cell. A CSRR etched patch antenna of dimensions 19.18×22.64×1.6 mm3 is designed on FR4 substrate with relative permittivity 4.4 and loss tangent 0.024. The proposed antenna provides wide bandwidth of 6.13 % (4.53–4.78 GHz), 8.509% (5.382–5.84 GHz) and 17.50% (8.98–10.65 GHz) with reasonable gain. Negative permittivity of CSRR and its new resonance creating ability are verified. The proposed antenna is targeted to address C band, WLAN and x band applications.
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