In this paper, a Schottky diode detector based on spoof surface plasmon polariton (SPP) structure is reported. The detector consists of an input matching network, a Schottky diode, and an output filtering network. The proposed detector is designed using a step impedance section and λ/4 radial stub integrated in the circuit. Compared with the conventional microwave detector, experimental results show that the proposed detector achieves 31% improvement of detection sensitivity with the high input radio frequency (RF) power and 95% improvement of the detection sensitivity with the low input RF power by the SPPs. The proposed detector is attractive for use in aircraft, vehicles, and wireless communication due to its miniaturization, low-cost, and easy fabrication with planar circuits.

中文翻译：

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基于欺骗表面等离子体激元极化子结构的微波探测器

本文报道了一种基于欺骗表面等离子体激元极化（SPP）结构的肖特基二极管检测器。该检测器由一个输入匹配网络，一个肖特基二极管和一个输出滤波网络组成。所提出的检测器是使用步进阻抗部分和集成在电路中的λ/ 4径向短截线设计的。与传统的微波检测器相比，实验结果表明，所提出的检测器通过高输入射频（RF）功率可以将检测灵敏度提高31％，而通过SPP进行低输入RF功率则可以将检测灵敏度提高95％。所提出的检测器由于其小型化，低成本和易于用平面电路制造而吸引用于飞机，车辆和无线通信中。