Holographic Antenna With Slotted Yagi Array Antenna As Surface Wave Launcher

In this paper, the holographic antenna with 4 elements of slotted Yagi array antenna as surface wave launcher is proposed to generate the plane wave holographic pattern within the small size of the antenna. The type of the feeder antenna is chosen to the slotted Yagi antenna for TM0 mode which radiates uni-directionally. The main radiator of the feeder antenna is modified to reduce mutual coupling. By arraying 4 elements of the feed antennas, they are able to generate plane wave just in front of themselves. The proposed holographic antenna with 12 metal strips is designed on the substrate of 24.25 x70 mm(2) and analyzed the characteristics of the gain and the radiation efficiency.