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Direction Finding with Angle Estimation in Antenna Array Using Radiation Pattern

Abstract:

Directional antennas concentrate the radiated energy in a localized manner, increasing the transmission or reception gain of a radio signal. One of the purposes of electronic warfare is the detection of arrival signals with their angle of arrival. In this article it is proposed to find the radiation pattern of an element of the antenna array, to determine the received power distribution in the 360° with an interval of 1°. The radiation pattern allows integrating a circular antenna array in order to detect the angle of arrival of a radio signal in the 80 MHz to 2 GHz band, also, a coefficient is proposed to estimate the angle of arrival using the two elements that receive the highest power from the circular antenna array.