IEICE Transactions on Communications
Online ISSN : 1745-1345
Print ISSN : 0916-8516
Regular Section
Numerical Analysis of Monopole Multi-Sector Antenna with Dielectric Cylinder
Yuto SUZUKINaoki HONMA
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2012 Volume E95.B Issue 9 Pages 2991-2994

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Abstract
This letter proposes a monopole multi-sector antenna with dielectric cylinder, and shows some results of simulations that examined the antenna characteristics. The dependency of radiation characteristics on relative permittivity εr shows the lens effect with increase of εr. Furthermore, the characteristics of the proposed antenna are improved by optimizing the termination conditions at the quiescent antennas. The backlobe level is lower than -10dB. Also, the vertical HPBW and the conical HPBW are around 70.5° and 63.4°, respectively. The optimization improved the actual gain by 2dB. It is found that the diameter of the proposed antenna is 1/3rd that of the conventional one.
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© 2012 The Institute of Electronics, Information and Communication Engineers
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