TELECOMMUNICATIONS AND RADIO ENGINEERING - 2010 Vol. 69,
No 17 		 

 

 

 

INPUT IMPEDANCE OF A CYLINDRICAL MICROSTRIP ANTENNA WITH AN ARBITRARY GEOMETRY RADIATOR EXCITED BY A COAXIAL LINE

A.E. Svezhentsev
A. Usikov Institute of Radio Physics and Electronics,
National Academy of Sciences of Ukraine
12, Academician Proskura St., Kharkiv 61085, Ukraine
Address all correspondence to A.E. Svezhentsev E-mail: svezh@ire.kharkov.ua

Abstract
The problem of a cylindrical microstrip antenna excitation by a coaxial line (rod) is considered. The coaxial line is modeled by a finite-length filament of electric current. The problem is solved by the method of moments in the spectral domain using piece-wise specified functions. Such an approach allows the class of possible problems to be essentially expanded, specifically, it makes possible to analyze antennas with radiators of arbitrary geometries. The frequency dependence of the return loss amount is considered for the antenna with an E-shaped radiator.
KEY WORDS:cylindrical microstrip antenna, arbitrary geometry radiator method of moments, input impedance

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pages 1499-1515

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