Design of Circularly Polarized Hemispherical Conformal Phased Array

The hemispherical conformal phased array antenna has received widespread attention due to its excellent beam scanning performance. Circular polarized antennas are favored due to their strong anti-interference ability. This article designs a circularly polarized hemispherical conformal phased array with a center frequency of 2.45GHz. It represents a part of football as a whole. The antenna unit selects a typical doubly fed circularly polarized patch antenna. It contains a total of 375 antenna units. And select the working antenna unit by determining the effective excitation zone. It can achieve semi airspace coverage.