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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >Dual-band dual-sense circularly polarized antenna based on crossed dipole structure for WLAN/WiMAX applications
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Dual-band dual-sense circularly polarized antenna based on crossed dipole structure for WLAN/WiMAX applications

机译：基于交叉偶极结构的双频双感圆极化天线，用于WLAN / WiMAX应用

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摘要

This paper presents a new approach to design dual-band antenna with dual-sense circularly polarized (CP) operation. A principle for CP radiation is the use of two orthogonal dipoles and properly choosing their lengths can produce either right-hand CP (RHCP) or left-hand CP (LHCP) operation. In the proposed structure, the lower frequency band at 2.4 GHz is designed with RHCP radiation and LHCP is the operating mode of the higher band at 3.5 GHz. For verification, an antenna prototype is fabricated and measured. Measured data indicate that good performances over the RHCP and LHCP bands can be obtained with usable bandwidths of 2.9% (2.36-2.43 GHz) and 1.7% (3.48-3.54 GHz). Along with this, it also observes good unidirectional radiation patterns and the measured broadside gains are around 7.7 and 7.4 dBic across these frequency ranges.
机译：本文提出了一种新的方法来设计具有双检测圆极化（CP）操作的双频带天线。 CP辐射的原理是使用两个正交偶极子，正确选择其长度可以产生右旋CP（RHCP）或左旋CP（LHCP）操作。在建议的结构中，使用RHCP辐射设计2.4 GHz的较低频段，而LHCP是3.5 GHz的较高频段的工作模式。为了验证，制造并测量了天线原型。实测数据表明，可用带宽分别为2.9％（2.36-2.43 GHz）和1.7％（3.48-3.54 GHz）时，可以在RHCP和LHCP频段上获得良好的性能。除此之外，它还能观察到良好的单向辐射方向图，在这些频率范围内测得的宽边增益约为7.7和7.4 dBic。

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