The Analysis of Element and Array of Parabolic Reflector Antenna with Hexagonal Aperture

In this paper, the Hexagonal Aperture Parabolic Reflector (HAPR) array is presented to achieve high gains. Because of their hexagonal aperture, the HAPR antennas are easy to be integrated into a compact reflector array with a large total aperture. Investigations of efficiency and radiation properties of HAPR antennas are conducted, and compared with traditional Circular Aperture Parabolic Reflector (CAPR) ones. Simulated results demonstrate that the proposed antenna has comparable performances with CAPR one. The HAPR array's gain increases linearly from 39.86dB to 48.38dB, with a stable efficiency above 75%, as the number of elements varies from 1 to 7. HAPR array's advantages of high gain, stable efficiency, low cost and robust configuration would make it more practical in applications of long distance communication, radio-astronomy and so on.