This paper proposes a microstrip patch antenna based on the left-handed metamaterial concept, using planar periodic geometry,\nwhich results in improved characteristics. This periodic geometry is derived from fractal shapes, which have been widely used in\nantenna engineering. The metamaterial property was obtained as a result of the double-fractal structure on both the upper and\nthe bottom sides of the antenna. The final structure has been optimized to enhance bandwidth, gain, and radiation characteristics\nof the microstrip antenna. This combination significantly improved antenna performance; our design could support an ultrawide\nbandwidth ranging from 4.1 to 19.4GHz, demonstrating higher gain with an average value of 6 dBi over the frequency range and a\npeak of 10.9 dBi and a radiation capability directed in the horizontal plane of the antenna.
Loading....