This paper presents a novel coupled receiver–transmitter metasurface (MS) which is used to realize a high-aperture-efficiency Fabry–Perot resonator antenna. The unit cell of the MS adopts a slot-coupling procedure to realize energy transmission from the receiver patch to the radiator patch. This approach makes it easier to independently control the transmission magnitude and phase. Based on this characteristic, the transmission coefficients of different unit cells on the MS can be optimized by a genetic algorithm. Then, nearly uniform electric amplitude and phase distribution across the aperture field of the antenna are achieved. Therefore, the gain and aperture efficiency of the antenna are improved. A prototype of the optimized antenna is fabricated and measured to validate the design. The measured gain of the fabricated antenna reaches 17.3 dBi with an aperture efficiency of 94.5%. A higher aperture efficiency is obtained with the proposed antenna which has a low profile and simple structure.

本文提出了一种新型耦合接收器-发射器超表面（MS），用于实现高孔径效率的法布里-珀罗谐振器天线。MS的单位单元采用时隙耦合程序实现从接收器贴片到辐射器贴片的能量传输。这种方法可以更容易地独立控制传输幅度和相位。基于这个特性，可以通过遗传算法优化MS上不同单元的传输系数。然后，在天线的孔径场上实现几乎均匀的电振幅和相位分布。因此，提高了天线的增益和孔径效率。制造和测量优化天线的原型以验证设计。所制作天线的实测增益达到17。3 dBi，孔径效率为 94.5%。所提出的具有低剖面和简单结构的天线可以获得更高的孔径效率。