The increasing advance of short-range wireless communications requiring high data rates and the lack of available spectrum have driven researchers and industry to move towards higher frequencies, in particular to the millimeter-wave range. The antenna is the most important part of a communication system and the optimum design is the challenge of this frequency range. Higher frequencies lead to smaller sizes of RF components and the implementation of passive components of communication systems is difficult at millimeter waves with dir="LTR" Gap Wavegiude, Artificial Magnetic Conductor, Radar Cross Section Reduction, Bed of Nails, Slot Array Antenna, Side Lobe level Reduction
