关键词: 临近耦合馈电, 偶极子天线, 可重构, 波束扫描

Abstract:

A novel reconfigurable proxy-coupled printed dipole antenna array is presented.The radiation pattern can be switched by controlling the distance of each dipole and distance between every dipole and the main feed line.The antenna array can form dipole antenna array nesting arrangement of different radiation patterns,and can transfer to different dipole radiation elements via pin switch,leading to the reconfiguration of the radiation pattern and diversity of maximum radiation direction.The simulation results show that the antenna can obtain the maximum radiation direction at 0°and 40° at the center frequency of 9.8 GHz,and the maximum gain is 12 dBi at 0° and 8.7 dBi at 40°;the input reflection coefficient under either working state is lower than -30 dB,showing a perfect impedance matching.

Key words: coupling feed;dipole antenna;reconfigurable;switched beam