Hexagonal array structure of dielectric rod to shape flat-topped element pattern

A hexagonal structure of dielectric rods forming a flat-topped element pattern (FTEP), comprising:

• a center element and a plurality of first ring elements for forming a unit radiation pattern of the FTEP through an electromagnetic wave mutual coupling by receiving a polarization signal of a basic mode;
• a plurality of second ring elements arranged at vertexes of a regular triangle grating having one or two first ring elements as a vertex of the regular triangle and forming a shape of a regular hexagon for forming a radiation pattern by mutual coupling with the center element and the first ring elements;
• and
• circular waveguide array supporting means for supporting the center element, the plurality of first ring elements and the plurality of second ring elements.

A hexagonal structure of dielectric rods forming a flat-topped element pattern (FTEP), comprising:

• a plurality of elements from a center element to 6(N−1) elements of a (N−1)th ring for forming a unit radiation pattern of the FTEP by electromagnetic wave mutual coupling by receiving a polarization signal of a basic mode;
• 6N elements of Nth ring for forming a unit radiation pattern by being arranged within a regular space and being electromagnetic wave mutual coupled with adjacent element;
• and
• circular waveguide array supporting means for supporting a plurality of elements from the center element to Nth ring,
• wherein N is a natural number greater than one.