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Axial ratio improvement in aperture antennas using high-impedance ground plane

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3 Author(s)
Sievenpiper, D. ; Hughes Res. Labs., Malibu, CA, USA ; Schaffner, J. ; Navarro, J.

High-impedance surfaces are studied as a means of improving the radiation pattern symmetry in aperture antennas. Compared to a solid metal ground plane, the results suggest that high-impedance surfaces can significantly improve the axial ratio of circularly polarised antennas. This can be used to reduce interference between left and right polarisation components.

Published in:

Electronics Letters  (Volume:38 ,  Issue: 23 )