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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >Wideband circular polarized cylindrical segmenteddielectric resonator antenna for ISM band applications
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Wideband circular polarized cylindrical segmenteddielectric resonator antenna for ISM band applications

机译：ISM波段宽带圆极化圆柱分段电介质谐振器天线

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摘要

In this article, cylindrical segmented dielectric resonator antenna (CDRA) isproposed for ISM band applications. To obtain the proposed antenna, three different(120, 60, and 30) segments of different cylindrical radius r_1, r_2, and r_3with stacked angular displacement are used for circular polarization withwideband frequency response. Quadrature phase shift of orthogonal field areobserved when segment of cylinder is stacked with specific angular displacement.Various higher order modes are investigated. The simulated and measuredimpedance bandwidth of the proposed antenna is 90% (3.3 GHz-8.7 GHz) and 83.4% (3.5 GHz-8.5 GHz) respectively and the simulated andmeasured axial ratio bandwidth is 53.8% (3.8 GHz-6.6 GHz) and 58.5%(3.5 GHz-6.4 GHz), respectively. Proposed antenna attains 7.1 dBi measuredpeak gain at 8.5 GHz with more than 80% radiation efficiency in the frequencyband. The fabricated prototype is experimentally measured and its results arefound to be commensurable with the simulation results.
机译：在本文中，提出了圆柱形分段介质谐振器天线（CDRA）用于ISM频段应用。为了获得所提出的天线，将具有堆叠角位移的不同圆柱半径r_1，r_2和r_3的三个不同的（120、60和30）段用于具有宽带频率响应的圆极化。当圆柱体的段以特定的角位移堆叠时，观察到正交场的正交相移。研究了各种高阶模。拟议天线的模拟和测量阻抗带宽分别为90％（3.3 GHz-8.7 GHz）和83.4％（3.5 GHz-8.5 GHz），模拟和测量轴比带宽为53.8％（3.8 GHz-6.6 GHz）和58.5％ （3.5 GHz-6.4 GHz）。拟议的天线在8.5 GHz时可达到7.1 dBi的实测峰值增益，在该频带中的辐射效率超过80％。对制成的原型进行了实验测量，发现其结果与仿真结果相当。

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