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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >A dual-band dual-polarized cubical DRA coupled with new modified cross-shaped slot for ISM (2.4 GHz) and Wi-MAX (3.3-3.6 GHz) band applications
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A dual-band dual-polarized cubical DRA coupled with new modified cross-shaped slot for ISM (2.4 GHz) and Wi-MAX (3.3-3.6 GHz) band applications

机译：双频双极化立方DRA加上新的改进的十字形槽，适用于ISM（2.4 GHz）和Wi-MAX（3.3-3.6 GHz）频段应用

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In this article, a new modified cross-shaped coupled cubical dielectric resonator antenna (DRA) has been investigated for dual-band dual-polarized applications. The linearly polarized (LP) fields in DRA has been generated by using a single slot in the ground plane and kept at either 45 degrees (S-L1) or -45 degrees (S-L2) from the microstrip feed line. Combining these two slots (S-L1 and S-L2) in the modified ground plane, the proposed structure able to generate circularly polarized (CP) field in DRA. But the generated CP field is not enough to cover ISM 2400 band. To achieve CP in ISM 2400 band, an extra slot (S-L3) to the existing slots and an extra strip (S-T) in the circular ring feed line have been included. This modified final antenna arrangement has been able to produce LP (due to loading effect, ie, slot and DRA) and CP fields (orthogonal modes have been generated, ie, TE111x and TE111y), simultaneously. The measured CP and LP, -10 dB impedance bandwidths are 11.85% (2.38-2.68GHz) and 9.11% (3.25-3.56GHz) in combination with the 3-dB axial ratio bandwidth of 4.11% (2.38-2.48GHz). The generated CP and LP fields are used for different wireless communication bands such as ISM 2400 and Wi-MAX (3.3-3.7 GHz) bands.
机译：在本文中，已经研究了一种用于双频双极化应用的新型改进的十字形耦合立方介电共振器天线（DRA）。 DRA中的线性极化（LP）场是通过使用接地平面中的单个槽产生的，并与微带馈线保持45度（S-L1）或-45度（S-L2）保持不变。结合修改后的接地平面中的这两个槽（S-L1和S-L2），所提出的结构能够在DRA中生成圆极化（CP）场。但是，生成的CP字段不足以覆盖ISM 2400频段。为了在ISM 2400频段中实现CP，在圆环馈线中包括了一个到现有插槽的额外插槽（S-L3）和一个额外的带（S-T）。修改后的最终天线布置已能够同时产生LP（由于加载效应，即缝隙和DRA）和CP场（已生成正交模式，即TE111x和TE111y）。测得的CP和LP的-10 dB阻抗带宽为11.85％（2.38-2.68GHz）和9.11％（3.25-3.56GHz），而3.dB轴向比率带宽为4.11％（2.38-2.48GHz）。生成的CP和LP字段用于不同的无线通信频段，例如ISM 2400和Wi-MAX（3.3-3.7 GHz）频段。

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