Circularly polarized cylindrical dielectric resonator antenna for the X-band frequency

2017 IEEE International Conference on Antenna Innovations & Modern Technologies for Ground, Aircraft and Satellite Applications (iAIM) Pub Date : 2017-11-01 DOI:10.1109/IAIM.2017.8402568

N. Mishra, Soma Das, D. Vishwakarma

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引用次数: 2

Abstract

In this paper circularly Polarized Dielectric Resonator Antenna (CDRA) for the X-band frequency applications has been designed and investigated. Proposed CDRA fed by V- shaped slot; is showing characteristics of Circular Polarization in the desired band. Two inclined arms of symmetrically centered V- shaped slot having same dimension excite the TM01δ modes at 10GHz as well as slots itself are resonating at 8.5 GHz. Crossing of λ/4 long micro strip line between both slots at an angle is generating the nature of circular polarization near the 9.5GHz frequency range. Axial Ratio bandwidth (AR ≤ 3 dB) of 9% (825MHz) and impedance bandwidth (S11 ≤ -10 dB) of 37% (3.5GHz) has been shown by the antenna which can be considered large axial ratio bandwidth for single and simple feed CDRA. Proposed antenna has shown average gain of more than 6 dBi in broadside direction with more than 96% radiation efficiency in desired band.

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为x波段频率的圆极化圆柱形介电谐振器天线

本文设计并研究了用于x波段的圆极化介质谐振器天线。提出了采用V形槽馈电的CDRA;在所需波段显示圆偏振特性。相同尺寸的对称中心V形槽的两个斜臂在10GHz激发TM01δ模式，槽本身在8.5 GHz谐振。在9.5GHz频率范围附近，λ/4长微带线在两个狭缝之间以一定角度交叉产生圆极化性质。该天线显示，轴比带宽(AR≤3db)为9% (825MHz)，阻抗带宽(S11≤- 10db)为37% (3.5GHz)，对于单馈和简单馈源CDRA来说，可以认为是大轴比带宽。该天线在宽带方向上的平均增益大于6 dBi，在期望频段的辐射效率大于96%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2017 IEEE International Conference on Antenna Innovations & Modern Technologies for Ground, Aircraft and Satellite Applications (iAIM)

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