IMPROVING THE PERFORMANCES OF A HIGH TC SUPERCONDUCTING CIRCULAR MICROSTRIP AN- TENNA WITH MULTILAYERED CONFIGURATION AND ANISOTROPIC DIELECTRICS
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Date
2010-12
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Université de M'sila , univ-msila.dz
Abstract
The moment method technique has been improved to in-
vestigate the scattering properties of high Tc superconducting circular
antennas with anisotropic substrate in multi-layered con¯guration. In
this method, the electric ¯eld integral equation for a current element
on a grounded dielectric slab of in¯nite extent was developed by basis
functions involving Chebyshev polynomials. An improved analytical
model is presented taking into account anisotropic substrate, super-
conducting material for the circular patch and multilayered structure.
To validate the theoretical results, an experimental study has been
performed for a perfectly conducting circular patch on a single layer,
with and without air gap. Good agreements were obtained between
our theory and measurements. E®ects of temperature and thicknessof a superconducting ¯lm are also reported and discussed. The perfor-
mances of high Tc superconducting circular antennas were improved by
the use of uniaxial anisotropy substrate and multilayer con¯guration.
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IMPROVING THE PERFORMANCES OF A HIGH TC SUPERCONDUCTING CIRCULAR MICROSTRIP AN- TENNA WITH MULTILAYERED CONFIGURATION AND ANISOTROPIC DIELECTRICS , univ-msila.dz