Analysis of arbitrary shape printed line microstrip antennas

A rigorous solution for arbitrary-shape printed line antennas is developed using the microstrip Green's functions. The current distribution of the line is determined by a moment method and the use of sinusoidal basis functions. Analytical expressions for the far zone fields are obtained using a...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 1990-02, Vol.38 (2), p.269-274
Main Authors: Ragheb, H.A., Shafai, L.
Format: Article
Language:English
Subjects:
Current distribution
Integral equations
Magnetic analysis
Microstrip antenna arrays
Microstrip antennas
Moment methods
Permittivity
Polarization
Shape
Wire
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Summary:A rigorous solution for arbitrary-shape printed line antennas is developed using the microstrip Green's functions. The current distribution of the line is determined by a moment method and the use of sinusoidal basis functions. Analytical expressions for the far zone fields are obtained using an asymptotic method for evaluating the Sommerfeld integrals. Examples illustrating the accuracy of the method and characteristics of selected printed antennas are presented. It is found that, for undulated printed line elements, the resonance length increases when the undulation height increases. Various examples of undulated printed line elements which are useful for array design are investigated. The effect of the undulation height on the radiation characteristics of the printed line is studied.< >
ISSN:0018-926X
1558-2221
DOI:10.1109/8.45131