By Atef Z. Elsherbeni
The target of this booklet is to introduce scholars and design-engineers to antenna layout and research utilizing the preferred advertisement electromagnetic software program FEKO. This booklet is basically meant for college kids operating within the box of antenna research and layout; but the wealth of hands-on layout examples provided during this book―along with simulation details―also makes it a necessary reference for practising engineers. The requirement for the readers of this booklet is to be accustomed to the fundamentals of antenna conception; besides the fact that electric engineering scholars taking an introductory path in antenna engineering may also reap the benefits of this booklet as a supplementary textual content.
The key strengths of this e-book are as follows
* First, the fundamentals of antenna simulation should be awarded in an in depth, comprehensible, and easy-to-follow method via learn of the best kinds of radiators, i.e. dipole and loop antennas, in chapters 2 and three. it will construct the basic wisdom a scholar would want with a purpose to make the most of antenna simulation software program commonly.
* moment, comparability among theoretical research and full-wave simulation result of FEKO are given for quite a few antenna varieties, so one can relief the readers with a greater realizing of the speculation, approximations and barriers within the theoretical research, and resolution accuracy.
* 3rd, and of paramount significance, is the visualization of the antenna present distribution, radiation styles, and different radiation features which are made to be had via full-wave simulations utilizing FEKO. a formal research of the radiation features via those visualizations serves as a robust academic software to totally comprehend the radiation habit of antennas.
The advertisement electromagnetic software program FEKO is chosen for the simulations as a result of its various benefits and recognition. specifically, this software program offers a number of solvers that may be selected for a quick and effective research looking on the kind of antenna. furthermore, FEKO presents unfastened school room licenses to universities which can be utilized to simulate many of the antenna configurations awarded during this book.
FEKO simulation records can be found to teachers who undertake the publication for his or her direction or execs who've bought the ebook. Please touch The IET for additional information
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Additional info for Antenna analysis and design using FEKO electromagnetic simulation software
A very interesting configuration is the dipole antenna when it is placed above an infinite perfect electrical conductor (PEC) ground plane. Theoretical analysis of this configuration is done using image theory [7,8]. Here we will study two cases: the vertical and horizontal half-wavelength dipoles above an infinite PEC ground plane. The geometry of these two configurations is shown in Figure 2-24. The center of the dipole is placed at a distance of one wavelength from the ground plane. Studying the effect of CH002 17 April 2014; 14:54:22 26 CHAPTER Wire Dipole and Monopole Antennas 2 FIGURE 2-22 ¢ Setup for wireless power transfer using two dipole antennas.
41 41 43 53 60 68 71 INTRODUCTION This chapter introduces another fundamental antenna configuration: the loop antenna. This simple, inexpensive, and very versatile antenna takes many different forms, such as a rectangle, square, triangle, ellipse, and circle. Because of the simplicity in analysis and construction, the circular loop is the most popular and has received the widest attention. In this chapter, the effect of loop circumference on the current distribution and radiation performance of the antenna is illustrated using several examples.
0001l. The amplitude of the current distribution on the dipoles at the center frequency and at the frequency extremes across a 20% band is given in Figure 2-7. Frequency = 300 MHz Frequency = 330 MHz Frequency = 270 MHz 600 600 500 500 Current [uA] Current [uA] Frequency = 270 MHz 400 300 200 100 0 (a) Frequency = 300 MHz Frequency = 330 MHz 400 300 200 100 –20 –10 0 10 Segment Z-position [mm] FIGURE 2-7 ¢ 20 (b) 0 –50 –40 –30 –20 –10 0 10 20 30 Segment Z-position [mm] Current distribution on small dipole antennas: (a) l/20.