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Compact radiator antenna: A new approach to enhance the bandwidth using ENG-TL and C-CSRR mushroom meta-resonator
AEU - International Journal of Electronics and Communications ( IF 3.0 ) Pub Date : 2021-03-05 , DOI: 10.1016/j.aeue.2021.153697
Mohammad Ameen , Raghvendra Kumar Chaudhary

This work presents a new and efficient approach for enhancing the bandwidth and reducing the E-plane cross-polarization (X-pol) of an epsilon negative transmission line (ENG-TL) antenna with reduced size for working in 2.4 GHz Industrial, Scientific and Medical (ISM) band. The antenna consists of ENG-TL on which a curved meander line inductor is loaded for the generation of zeroth-order resonance mode. Subsequently, a miniaturized and low profile (0.06 λ0 × 0.06 λ0 × 0.013 λ0 at 2.44 GHz) circular-complementary split-ring resonator (C-CSRR) based mushroom meta-resonator is stacked over the ENG-TL antenna enhances the bandwidth twice without increasing any additional area. The proposed antenna provides a radiating element size of 0.17λ0 × 0.15λ0 excluding the feedline and total antenna dimension including ground plane is 0.17λ0 × 0.20λ0 × 0.025λ0 at 2.45 GHz. The measured results shows an enhanced impedance bandwidth (IBW) of 7.40%, an acceptable gain of 2.8 dBi, and X-pol value better than 35 dB is obtained for the E-plane. The antenna compactness, extended IBW, low X-pol levels, improved gain, high gain-to-area ratio, and acceptable radiation efficiency indicates that the proposed antenna is appropriate for working in 2.4 GHz (2.4–2.484 GHz) ISM band.



中文翻译:

紧凑型辐射器天线:使用ENG-TL和C-CSRR蘑菇形元谐振器提高带宽的新方法

这项工作提出了一种新的有效方法,可提高带宽并减小具有减小尺寸的ε负传输线(ENG-TL)天线的E平面交叉极化(X-pol),以在2.4 GHz工业,科学和工业领域中工作。医疗(ISM)频段。天线由ENG-TL组成,在该ENG-TL上装有弯曲的曲折线电感器,以生成零阶谐振模式。随后,小型化且低轮廓(0.06λ 0  ×0.06λ 0  ×0.013λ 0在2.44千兆赫)的圆形互补开口环谐振器基于(C-CSRR)蘑菇元谐振器被堆叠在ENG-TL天线增强了带宽增加了两倍,而没有增加任何其他区域。所提出的天线提供的0.17λ的辐射元件尺寸0 ×0.15λ 0不含馈线并且包括接地平面总天线尺寸是0.17λ 0  ×0.20λ 0  ×0.025λ 0在2.45GHz。测量结果表明,对于E平面,阻抗带宽(IBW)增强了7.40%,可接受增益为2.8 dBi,并且X-pol值优于35 dB。天线的紧凑性,扩展的IBW,低的X-pol电平,改善的增益,高的增益/面积比以及可接受的辐射效率表明,所建议的天线适合在2.4 GHz(2.4–2.484 GHz)ISM频段上工作。

更新日期:2021-03-26
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