A new corner-reflector antenna with a tunable gain based on active frequency selective surfaces (AFSSs) is presented. The proposed design comprises a dipole antenna as a source of the electromagnetic (EM) waves, and three reconfigurable AFSS layers of different size arranged at the same side of the dipole. Each screen consists of two AFSS panels that connected in series and rotated towards the feed to form a V-shaped corner reflector. These AFSS layers are mainly used to control the transmission/ reflection characteristics of the proposed antenna. By applying different combinations for ON/OFF states of diodes, the proposed antenna can adjust its gain value. The antenna performance in terms of reflection coefficient, radiation pattern in the H-plane and gain is analyzed at 5.8 GHz. To validate the concept of the proposed antenna, the prototype of the proposed antenna is fabricated and measured. The measured results show a good agreement with the simulated ones.

中文翻译：

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基于有源频率选择性表面的新型可调增益角反射天线

提出了一种基于有源频率选择性表面（AFSS）具有可调增益的新型角反射天线。提出的设计包括一个偶极天线作为电磁波（EM）的源，以及三个不同大小的可重构AFSS层，它们布置在偶极的同一侧。每个屏幕由两个AFSS面板组成，该面板串联连接并朝进纸方向旋转以形成V形角反射器。这些AFSS层主要用于控制所建议天线的传输/反射特性。通过对二极管的开/关状态应用不同的组合，所提出的天线可以调整其增益值。在5.8 GHz频率下分析了天线的反射系数，H平面辐射方向图和增益方面的性能。为了验证建议天线的概念，拟议天线的原型已制造并测量。测量结果与模拟结果吻合良好。