Low Side-Lobe Beamforming Antenna for Earth Stations in Motion

Abstract

Phased array antennas are commonly used in earth stations because of their fast and accurate beam steering characteristics. The sidelobe of earth station antennas is strictly regulated internationally to avoid affecting the adjacent satellites. To suppress the side lobe of the phased array antenna, the accurate amplitude and phase of the signal must be fed to each radiating element. This paper proposed a method for calculating the amplitude and phase of a signal. The proposed method can rapidly and accurately calculate the amplitude and phase of each radiating element signal by setting an arbitrary phase in the radiation pattern reference. In addition, the proposed method was verified through a beamforming problem that satisfies the domestic radiation pattern reference.

Design Approach of a Wideband Non-Uniformly Spaced Linear Array Based on Reinforcement Learning to Suppress Multiple Interference Signals

“…배열 안테나 빔 패턴의 BW를 유지하면서 SLL을 낮추 기 위한 많은 연구가 이루어졌다 [3]∼ [7] . 하지만, 이러한 방 법은 재밍(jamming)과 방송 신호와 같이 강한 파워를 갖 는 간섭(interference) 신호가 수신되는 경우에 효과적이지 않다.…”