DocumentCode :
1631749
Title :
Analysis of transmitting wire antenna
Author :
Shareena, E.M. ; Abdulla, P. ; Lethakumary, B.
Author_Institution :
Dept. of Electron. & Commun., Mahatma Gandhi Univ. Coll. of Eng., Thodupuzha, India
fYear :
2012
Firstpage :
1
Lastpage :
7
Abstract :
Researches and investigations in transmitting wire antenna is continuing. The term wire means metallic, highly conducting, solid or tubular electrically thin wires, i.e. wires with diameter very small compared to the length of the wire and the wavelength of an incident plane wave. When the wire element is excited at one or more electrically small regions along the length, it behaves as a transmitting antenna. The accurate solution of the antenna characteristics can be obtained from the surface current, which can be obtained from Maxwell´s equation subject to boundary conditions. This result an integral equation of current which can be solved using numerical method. The numerical methods are so simple and it can be applicable to many configurations. In this work a moment based numerical technique which consists of expanding the unknown quantity in to a series with unknown coefficients. The expansion is introduced in the integral equations and a testing procedure is performed and that has been used to evaluate the current distribution. First theoretical analysis with appropriate derivations are presented. Then a Matlab code to model the current distribution is developed. The algorithm to evaluate integral is based on moment method and Pocklington´s equations. Length of the wire is taken as 0.47λ and area of cross-section as 0.005λ. Frequency is selected as 3MHz.
Keywords :
Maxwell equations; integral equations; transmitting antennas; wire antennas; wires (electric); Matlab code; Maxwell equation; Pocklington equations; antenna characteristics; boundary conditions; integral equations; moment method; numerical method; surface current; transmitting wire antenna; tubular electrically thin wires; wire element; Current distribution; Electric fields; Equations; Integral equations; Linear antenna arrays; Microstrip antenna arrays; Wires; MoM technique;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power, Signals, Controls and Computation (EPSCICON), 2012 International Conference on
Conference_Location :
Thrissur, Kerala
Print_ISBN :
978-1-4673-0446-7
Type :
conf
DOI :
10.1109/EPSCICON.2012.6175237
Filename :
6175237
Link To Document :
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