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X-band directive single microstrip patch antenna using dielectric parasite

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2 Author(s)
Afzalzadeh, R. ; Dept. of Phys., Poona Univ., Pune, India ; Karekar, R.N.

A new method to enhance the gain of a single microstrip patch antenna using spaced superstrates as a dielectric parasite is presented. The experimental results of radiation patterns using alumina parasites with different thicknesses and spacings are given. The minimum beamwidth obtainable with a single patch using present studies is only 18 degrees with symmetric lobes in the H and E planes. This simple method can also be used to vary the beamwidth of the patch between 18 and 125 degrees with proper choice of parasite parameters.

Published in:

Electronics Letters  (Volume:28 ,  Issue: 1 )