Electromagnetic Coupling Reduction between Millimeter Microstrip Antennas using High Impedance Surface
نویسنده
چکیده
Recently, a widely use of High Impedance Surface (HIS) structures in several applications such as in radar and telecommunication systems have been described in the literature. An interesting characteristic of the High Impedance Surface (HIS) is that it can be used to reduce the mutual coupling between microstrip antennas. In this paper, firstly the band-gap features of three types of high impedance surface structure have been studied by using CST Microwave Studio. Secondly, those HIS structures are integrated in to an antennas array system to improve the low mutual coupling. The investigation included both E and H coupling direction, and antenna system is analyzed using HFSS. A significant value of -12 dB mutual coupling reduction is reached at resonant frequency.
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