The proposed antenna has been designed and simulated using CST microwave studio at 10 GHz. As a result, the electric and the magnetic fields at the top of the patch are improved, the radiated electromagnetic beam size reduces which results in a highly focused beam and hence the antenna directivity and gain are improved, while the beam are is reduced. These enhancements occur between the patch and the periodic structure resonators and between the different resonator pairs of the periodic structure. The radiated electromagnetic waves intensity of the proposed antenna is improved compared with the conventional patch antenna due to the electric and magnetic coupling enhancements.
The three dimensional periodic structure is placed at the top of the patch within a specific separation distance to construct the proposed antenna. In this paper, three dimensional periodic structure composed of circular split ring resonators and thin wires is used to improve the performance of a microstrip patch antenna.
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