Abstract

This paper investigates the characteristic of the shape of split ring resonator (SRR) slot and hybrid substrate on a monopole antenna at a wideband ranged from 4.61 to 10.23 GHz. All antenna designs involved in this investigation are simulated in Computer Simulation Technology (CST) Microwave Studio software in open space environment. The SRR-slotted designs are printed on FR4 epoxy board with dielectric constant of 4.4 and tangent loss of 0.019. Subsequently, the hybrid substrate is a multilayer constructed by FR4 substrate and glass substrate with dielectric constant of 6.9 and conductivity of 0.0005 S/m. Antenna parameters such as frequency, return loss, gain, directivity, and efficiency will also be studied and analyzed in this paper. The result shows that the adding of SRR slot contributes to a notch function creation whereas the adding of hybrid substrate will cause widen bandwidth of first frequency band, shorten bandwidth of second frequency band, and the shifting in notch-band.

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