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首页> 外文期刊>Applied Computational Electromagnetics Society journal >Design of Frequency Reconfigurable Patch Antenna for Sensing and Tracking Communications
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Design of Frequency Reconfigurable Patch Antenna for Sensing and Tracking Communications

机译：用于传感和跟踪通信频率可重构贴片天线的设计

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摘要

This paper presents a front-end structure of a reconfigurable patch antenna for cognitive radio systems. The antenna structure consists of an Ultrawideband (UWB) sensing antenna and an array of frequency reconfigurable antennas incorporated on the same substrate. The UWB and reconfigurable antennas are fed by co-planar waveguides (CPW). The reconfigurability is achieved by rotating the series of patch antennas through a certain angle and the rotation is controlled by mechanical means using an Arduino microcontroller. The rotational reconfigurability has been preferred over MEMS switches, PIN diodes, and other lumped elements because the latter requires the need for bias lines. The entire structure is designed using High Frequency Structure Simulator (HFSS) software and the prototype is fabricated over FR-4 substrate having a thickness of 1.6mm and measurements are carried out. This antenna achieves a wideband frequency from 2 GHz to 12 GHz and distinct narrow band of frequencies by reconfigurability using single antenna consisting of different shapes spaced accurately to ensure isolation between adjacent frequency bands and each antenna element working for a bandwidth of 2 GHz for frequency from 2 GHz to 12 GHz upon a single substrate and the reconfigurable elements are controlled using a low cost Arduino microcontroller connected directly to the antenna which ensures accurate controlling of the rotation and fast switching between the antenna elements. The measured results agree with the simulated results and have less than 10 dB impedance bandwidth.
机译：本文介绍了用于认知无线电系统的可重构贴片天线的前端结构。天线结构包括超字节带（UWB）感测天线，并结合在同一基板上的频率可重新配置天线阵列。 UWB和可重新配置的天线由共平面波导（CPW）馈送。通过通过一定的角度旋转一系列贴片天线来实现重新配置性，并且使用Arduino微控制器通过机械装置控制旋转。旋转重新配置性是优选的MEMS开关，引脚二极管和其他集成元件，因为后者需要需要偏置线。整个结构采用高频结构模拟器（HFSS）软件设计，并在厚度为1.6mm的FR-4基板上制造原型，并进行测量。该天线通过使用单个天线组成的单个天线，通过精确地组成的单个天线来实现从2GHz到12 GHz的宽带频率和独特的窄频带，以确保相邻频带和每个天线元件之间的隔离，从而为来自2GHz的带宽工作。在单个基板上的2 GHz至12 GHz和可重新配置的元件使用直接连接到天线的低成本Arduino微控制器来控制，这确保了精确控制天线元件之间的旋转和快速切换。测量结果与模拟结果一致，具有少于10dB阻抗带宽。

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