Abstract:SUMMARYTwo types of microstrip line antennas made of loop elements are treated and a basic study of dual circular polarizations is performed. The analytical values obtained by the method of moments are used for the study. Dual polarizations are attempted with an antenna combining two conventional series loop-line antennas. Unwanted radiation near an elevation angle of 0° in the radiation pattern is recognized. The radiated field is separated into emissions from various parts of the antenna. The study results i… Show more
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