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Artificial Neural Network Based analysis of Circular Multiband Antenna

Artificial Neural Network Based analysis of Circular Multiband Antenna

Abstract-Designing the effectual shape of microstrip patch antenna for UHF band and C band is meant in this paper. Artificial neural network is used for optimizing the resonating frequencies of circular microstrip patch antenna. LevengbergMarquardt(LM) and Quasi-Newton BFG are used in this paper to achieve the different resonating frequencies. Development and implementation of ANN algorithm is finished in matlab. Which convert parameters containing dielectric constant, height of the substrate, radius of the circle to achieve resonating frequencies of antenna. The error and validity analysis of neural network results are execute in matlab. Good accord is their amoung the results available in literature and the results calculated through these algorithms.

Keywords- ANN, LM, Quasi-Newton BFG, Matlab, HFSS.

INTRODUCTION

In 1995, Huynh and Lee presents U-slot microstrip patch antenna [1]. Wideband applications are examined with Uslot antenna plus dual and triple band applications are also examined with it. WIFI, GPS, Military, Biomedical, Aerospace are some applications of wireless technology in which microstrip antenna plays an vital role [2]. A range of shapes like rectangular, triangular, circular, square, elliptical etc in which microstrip patch antenna can be developed [3][4]. Microstrip antenna plays an imperative task in wireless communication applications [5]. As an instant solution of loads of wireless antennas, microstrip antennas have drawn consideration of industries and researches due to their many striking features. Such advantages are easy fabrication, multiband operation, low cost, light weight, low profile nature and compatible with monolithic microwave integrated circuits. Demand of large distance communication is is pleased by Microstrip patch antenna [6]. Commercialization of microstrip antenna design require wide bandwidth and high gain. Microstrip patch antennas having key drawbacks such as narrow bandwidth [7] and low gain. Researchers and scientists have developed numerous methods to increase bandwidth. Microstrip feed line, coaxial probe feed, proximity coupled and aperture coupled feed are for providing power supply. Microstrip feed line is easy to match by controlling inset position and fabrication is also trouble-free.
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