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基于微波表面等离激元提出了一种电扫描多波束天线.该多波束天线由24条相同的端射天线绕同一圆心旋转而成,相邻端射天线之间的夹角为15?.单条端射天线的设计基于微波表面等离激元的耦合,将馈电单极子辐射的全向场调制为端射的定向场.仿真结果表明,提出的基于微波表面等离激元的多波束天线,在9.5—10.25 GHz频段内可实现面内360?波束扫描,且平均增益约为11.8 dBi,半功率波束宽度约为15?.
An electric scanning multibeam antenna is proposed based on microwave surface plasmon. The multibeam antenna is formed by rotating 24 identical endfire antennas around the same center, and the angle between adjacent endfire antennas is 15 °. Based on the coupling of microwave surface plasmon polarizer, the design of a single end-effector antenna is used to modulate the omni-directional field of the fed monopole into the directional field of the end-shoot. The simulation results show that the proposed multi-surface plasmon based multi- Beam Antenna An in-plane 360 beam scan is achieved in the 9.5-10.25 GHz band with an average gain of about 11.8 dBi and a half-power beamwidth of about 15 Ω.