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Wideband and compact horizontally polarized omnidirectionalrnantenna using composite dipole elements

机译:使用复合偶极子元件的宽带紧凑型水平极化全向天线

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摘要

A wideband horizontally polarized (HP) omnidirectional antenna is constructed and experimented in this article. The antenna consists of four composite dipoles forming a circular array in the azimuth plane and four pairs of parallel strip lines as impedance transformer networks. Two kinds of dipoles compose the composite dipole to achieve a wideband operation. By utilizing the composite dipole, four resonances can be simultaneously excited and manipulated to increase the bandwidth. A prototype is manufactured to validate the method. The dimensions of the antenna are just 0.62λrnrn_0 ×rnrn 0.62λrnrn_0 ×0.03λrnrn_0 (λrnrn_0 is the free-space wavelength at center frequency). The measured results show that the presented antenna has a impedance bandwidth of 58.6% (1.63-2.98 GHz) for VSWR ≤rnrn2. The gain variations are less than 0.6 dB at the azimuth plane in the operating band. Meanwhile, the cross-polarization is less than 20 dB and the peak gain reaches 1.7 dBi among in the band. These advantages of the antenna make it suitable for 4G mobile communication applications.
机译:本文构造并测试了宽带水平极化(HP)全向天线。天线由在方位平面上形成圆形阵列的四个复合偶极子和四对平行带状线作为阻抗变换器网络组成。两种偶极子组成复合偶极子以实现宽带工作。通过利用复合偶极子,可以同时激发和控制四个谐振以增加带宽。制造原型以验证该方法。天线的尺寸仅为0.62λrnrn_0×rnrn0.62λrnrn_0×0.03λrnrn_0(λrnrn_0是中心频率处的自由空间波长)。测量结果表明,对于VSWR≤rnrn2,所提出的天线具有58.6%(1.63-2.98 GHz)的阻抗带宽。在工作频带中的方位平面处,增益变化小于0.6 dB。同时,在该频带中,交叉极化小于20 dB,峰值增益达到1.7 dBi。天线的这些优点使其适合4G移动通信应用。

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    National Key Laboratory ofAntennas and MicrowavesTechnology, Xidian University,Xi’an, Shaanxi, 710071, People’sRepublic of China;

    National Key Laboratory ofAntennas and MicrowavesTechnology, Xidian University,Xi’an, Shaanxi, 710071, People’sRepublic of China,Collaborative Innovation Center ofInformation Sensing andUnderstanding, Xidian University,Xi’an, Shaanxi, 710071, People’sRepublic of China;

    National Key Laboratory ofAntennas and MicrowavesTechnology, Xidian University,Xi’an, Shaanxi, 710071, People’sRepublic of China;

    National Key Laboratory ofAntennas and MicrowavesTechnology, Xidian University,Xi’an, Shaanxi, 710071, People’sRepublic of China,Collaborative Innovation Center ofInformation Sensing andUnderstanding, Xidian University,Xi’an, Shaanxi, 710071, People’sRepublic of China;

    National Key Laboratory ofAntennas and MicrowavesTechnology, Xidian University,Xi’an, Shaanxi, 710071, People’sRepublic of China,Collaborative Innovation Center ofInformation Sensing andUnderstanding, Xidian University,Xi’an, Shaanxi, 710071, People’sRepublic of China;

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  • 正文语种 eng
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  • 关键词

    compact; horizontally polarized (HP) antenna; omnidirectional antenna; wideband;

    机译:紧凑;水平极化(HP)天线;全向天线宽频;

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