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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >Switched Beam Dielectric Resonator Antenna Array with Six Reconfigurable Radiation Patterns
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Switched Beam Dielectric Resonator Antenna Array with Six Reconfigurable Radiation Patterns

机译：具有六个可重配置辐射方向图的开关波束介电谐振器天线阵列

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摘要

A single feed, four element rectangular Dielectric Resonator Antenna (DRA)rnarray, with beam switching capability is proposed. A wide impedance bandwidth of morernthan 25% at the center frequency of 1.95 GHz is achieved. Each DRA has two excitationrnstrips and four parasitic patches. The six cases are discussed; each case corresponds to arndiverse radiation pattern. The antenna beam is switched in azimuth (θ=45°) at φ=0°, 60°,rn120°, 180°, 240°, and 300°. The antenna gain is found to be more than 7 dB in most of thernfrequency band of interest. A passive prototype is developed and tested to validate simulationrnresults. The comparison between the simulated and measured reflection coefficientsrnand the radiation patterns for the six cases is presented. A good agreement between thernmeasured and simulated results is observed.
机译：提出了一种具有波束切换能力的单馈四元矩形介质谐振天线（DRA）阵列。在1.95 GHz的中心频率上实现了超过25％的宽阻抗带宽。每个DRA具有两个激励带和四个寄生贴片。讨论了这六个案例；每种情况都对应于各种辐射图案。天线波束以φ= 0°，60°，120°，180°，240°和300°的方位角（θ= 45°）进行切换。发现在感兴趣的大多数频带中，天线增益均大于7 dB。开发并测试了无源原型，以验证仿真结果。给出了六种情况下模拟反射系数和测量反射系数rn与辐射方向图的比较。观察到的测量结果与模拟结果之间有很好的一致性。

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