Computation of input impedance of printed antennas with finite size and arbitrarily shaped dielectric substrate and ground plane

The input impedances of a microstrip antenna with finite and curved substrates are calculated using the hybrid volume surface integral equation approach. The results for flat and large substrate cases are compared with the measurement as well as the method of moment solution based on the spectral do...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2004-02, Vol.52 (2), p.615-619
Main Authors: Lu, C.-C., Yu, C.
Format: Article
Language:English
Subjects:
Antenna measurements
Antennas
Curved
Dielectric measurements
Dielectric substrates
Green's function methods
Ground plane
Input impedance
Integral equations
Mathematical analysis
Microstrip antennas
Moment methods
Patch antennas
Printed antennas
Shape
Spectra
Surface impedance
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Summary:The input impedances of a microstrip antenna with finite and curved substrates are calculated using the hybrid volume surface integral equation approach. The results for flat and large substrate cases are compared with the measurement as well as the method of moment solution based on the spectral domain Green's function for infinitely large ground plane. Numerical results show that the input impedance can be significantly influenced when the substrate of a patch antenna is reduced in size or curved in shape.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2004.823894