Integrated design of active phased array for low‐altitude detection radar

Analysis and Optimal Design of Antenna System's Forced Performance

“…After decades of upgrading, radar antenna system has gradually transformed from passive phased array to active phased array. Active phased array radar antenna system gradually occupies the mainstream position of modern radar antenna system with high resolution, excellent anti electronic interference ability, stable and reliable continuous working ability and large coverage ability [4,5].Through the active phased array technology, the antenna system, with its high adaptability, can be better combined with electronic information technology, electric scanning technology, numerical simulation technology, and microwave phaseshifting technology, so as to make the formation of digital beam more convenient and fast, and the system can obtain excellent and stable working performance [6][7][8].Although the performance of active phased array radar antenna is excellent, its design has high requirements for structural accuracy, complex structure composition and high overall cost. Mei et al [9] proposed a three-layer antenna structure composed of right composite panel and Nomex honeycomb structure.…”