Abstract

One of competitive advantages implementing artificial dielectric material (ADM) in the antenna application is its capability to lower the resonant frequency. In this paper, an experimental investigation of ADM-based microstrip square patch antenna with unique characteristic in resonant frequency lowering is presented. The ADM is implemented by configuring cylindrical-shaped copper conductors in such a way in a dielectric substrate, i.e. styrofoam, as host material which is perpendicular to the antenna patch and the groundplane. To show potentiality of the unique characteristic, a similar construction of conventional microstrip square patch antenna realized using a styrofoam is also experimentally characterized as comparison. The characterization result indicates that the use of ADM has affected the resonant frequency lowering up to 13.1% from the conventional antenna.

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