A Wide-Angle Time-Domain Electronically Scanned Array Based on Energy-Pattern-Reconfigurable Elements

作者：Jiang, Zhiguo; Xiao, Shaoqiu^*; Li, Yan

来源：IEEE Antennas and Wireless Propagation Letters, 2018, 17(9): 1598-1602.

DOI：10.1109/LAWP.2018.2856844

• Energy pattern
• energy-pattern-reconfigurable antenna
• wide-angle scanning array

A wideband wide-angle electronically scanned array with energy-pattern-reconfigurable elements is proposed, and the time-domain characteristics of the array are studied. An energy-pattern-reconfigurable antenna is designed as the array element. The element uses two p-i-n diodes to control the antenna working at three different modes, and the beam width of the energy pattern can jointly cover +/- 70 degrees under three modes. A 1 x 8 linear array is designed based on the reconfigurable element. The scanning space is divided into three subspaces, each subspace matching with one of the three reconfigurable states. By adding time delay, the array can scan its main lobe of the energy pattern from -70 degrees to +70 degrees with a gain fluctuation less than 3.5 dB. The measured fidelities are larger than 0.75 on the main lobe direction during scanning.

• 出版日期2018-9
• 单位电子科技大学