Abstract
For most of the weather antenna application, the antenna must be covered with radome to enhance operational efficiency in all weather circumstances. This radome provides environmental protection and along with that it enhances antenna performance. The antenna manufacturer must evaluate radome scattering level so that they can estimate the parameter of cost effective antenna and can provide maximum efficiency at minimum power requirement. It is well known that continuous antenna measurement on the radome enclosed antenna is difficult to perform, the analysis of the radome's effect on antenna pattern can be done by practical method. We analyzed microstip patch antenna in IE3D by finite moment method. The proposed antenna design have been analyzed between 1GHz to 20GHz. When the proposed antenna design for different geometries (i.e. Rectangular and Circular) were examined for two dielectric i.e. RT Duroid 5870 with dielectric constant 2.33, loss tangent 0.0005 and Ferro A6M LTCC with dielectric constant 5.9, loss tangent 0.0012 the results are: In case of rectangular geometry directivity is 11.1329 and efficiency is 39.9296% and in case of circular geometry directivity is 7.67422 and efficiency is 100%.
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