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Design and Development of SMART Antenna using Butler Matrix

K. Kumara Swamy, Mahesh Mudavath, V. Omjee, P. Laksminarayana

Abstract


The Multi beam Antenna is a revolutionary design which is able to access a large number of users in cellular communication systems. The number of users increasing very rapidly day by day so that the communication systems are becoming more complex. This complexity can be reduced to some extent by the multiple beam smart antennas. Multiple beam smart antenna system covers a number of users simultaneously so that information can be received from more than one user at the same time. The antennas which are used for receiving information from more than one direction are called as Smart antennas. The main aim of this paper work is to design and develop a multiple beam antenna producing eight orthogonal beams simultaneously at the frequency of 2GHz. For this, eight element dipole antenna array is designed which is fed by Butler matrix. Specifications: Frequency: 2GHz, Relative  Permittivity εr: 6.15, Characteristic Impedance Zo: 50Ω, H (thickness of the substrate): 1.27 mm.


Keywords


Butler Matrix, ADS, Hybrid Junction.

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References


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