IT Convergence and Security 2012 by Kuinam J. Kim & Kyung-Yong Chung

Author:Kuinam J. Kim & Kyung-Yong Chung
Language: eng
Format: epub
Publisher: Springer Netherlands, Dordrecht

Abstract

Efforts to downsize antennas were mostly made in microstrip antenna with great success and progress in a wide variety of fields. Using dielectric substance is one way to downsize antennas but it hinders such antenna characteristics as antenna bandwidth and radiation efficiency. Because of such limitations, there is an ongoing research to modify antenna structure. Radiation pattern of small antennas becomes nearly non-directional and antenna gain becomes lower. Furthermore, bandwidth gets narrower because of weakened input resistance and extremely high reactance. Developing a small-sized antenna that is free of such shortcomings is not easy and the major job is to downsize antennas while matching impedance to protect its characteristic. In this paper, we proposed novel particle swarm optimization method based on IE3D is used to design a mobile communication Microstrip Patch Antenna. The aim of the thesis is to Design and fabricate an inset fed rectangular Microstrip Antenna and study the effect of antenna dimensions Length (L), Width (W) and substrate parameters relative Dielectric constant (εr), substrate thickness on Radiation parameters of Band width. When the antenna was designed, a dual-band, dual-polarized antenna was used to secure the bandwidth and improve performance, and a coaxial probe feeding method so that the phased array of antenna is easy.

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