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A stacked ring-patch artificial substrate for surface waves suppression and in phase reflection

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2 Author(s)
Sujatha, M.N. ; Electr. Commun. Eng., Indian Inst. of Sci., Bangalore, India ; Vinoy, K.J.

In this paper, a stacked ring-patch two layer planar artificial substrate is analyzed numerically and is shown to possess the properties of a high impedance surfaces (HIS). Its properties are evaluated by investigating the surface wave propagation and plane wave reflection characteristics. Its application to reduce the mutual coupling of microstrip antennas is investigated by the FDTD simulations. Experimental measurements using a pair of monopoles are used to confirm the surface waves suppression band. One of the main advantages of the proposed geometry is that it is simple and planar in nature, without the need for any via connections across dielectric layers and thus can be realized by planar technologies. Second one, it exhibits over lapped surface wave suppression and in-phase reflection bands. Also it can be scalable to operate in different frequency range.

Published in:

Industrial and Information Systems (ICIIS), 2010 International Conference on

Date of Conference:

July 29 2010-Aug. 1 2010

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