Minkowski Fractal Parasitic Slot Antenna for Wideband Applications

A compact printed parasitic slot antenna integrated with Minkowski fractal patch for wideband applications is proposed in this paper. The design is mounted on FR-4 substrate with height h = 1.6 mm and a simple 500Ω microstrip line feed is used to excite the rotated slot of the antenna. The Minkowski fractal patch reduces the overall radiator size and increases the bandwidth compared to the conventional square patch. Four stubs introduced in the design further enhance the bandwidth of the antenna as well as the omnidirectional radiation pattern. The simulation results shows that this design exhibits a bandwidth improvement by 88.87% as compared to the antenna without the stub. Further, the triple notched bands of proposed antenna can accommodate the channel 3 of IEEE 802.11g (2.41 -2.43 GHz), the lower band of 5G technology at 2.5 GHz and can be used at X-band .