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首页> 外文期刊>International journal of antennas and propagation >A Compact CPW-Fed Low-Profile Wideband Circularly Polarized Slot Antenna with a Planar Ring Reflector for GNSS Applications
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A Compact CPW-Fed Low-Profile Wideband Circularly Polarized Slot Antenna with a Planar Ring Reflector for GNSS Applications

机译:紧凑型CPW馈电宽带圆偏振槽天线,具有用于GNSS应用的平面环形反射器

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摘要

A compact low-profile wideband circularly polarized slot antenna for global navigation satellite system (GNSS) is presented. The antenna comprises a planar slot radiator with a coplanar waveguide (CPW) feed and a modified ring-shaped reflector to achieve unidirectional radiation. The modified reflector is an inner square patch with four slantly cut corners, a center ring, and an outer ring with a notch; they significantly reduce the separation between the antenna radiator and reflector and therefore the overall antenna height. The overall dimensions are lambda(0)/3 x lambda(0)/3 x lambda(0)/30 (lambda(0) denotes the free space wavelength at lower frequency). The measured -10 dB bandwidth of |S-11|, 3-dB axial ratio (AR) bandwidth, and maximum gain are of 1.53-2.28 GHz, 1.558-1.672 GHz, and 5.87 dBi, respectively. The proposed antenna is simple without any additional feeding networks or shorting probes.
机译:提出了一种用于全球导航卫星系统(GNSS)的紧凑型低调宽带圆偏振光槽天线。天线包括平面槽散热器,具有共面波导(CPW)进料和改进的环形反射器,以实现单向辐射。改进的反射器是内部方形贴片,带有四个可口切口,中心环和带有缺口的外圈;它们显着降低了天线辐射器和反射器之间的分离,因此是整体天线高度。整体尺寸为λ(0)/ 3×λ(0)/ 3×Lambda(0)/ 30(λ(0)表示在较低频率下的自由空间波长)。测量-10 dB带宽| S-11 |,3-DB轴向比(AR)带宽和最大增益分别为1.53-2.28GHz,1.558-1.672 GHz和5.87 dBi。如果没有任何额外的馈电网络或短路探针,则所提出的天线很简单。

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  • 来源
    《International journal of antennas and propagation》 |2019年第3期|6463101.1-6463101.12|共12页
  • 作者单位

    Fuzhou Univ Coll Phys & Informat Engn Fuzhou 350116 Fujian Peoples R China;

    Fuzhou Univ Coll Phys & Informat Engn Fuzhou 350116 Fujian Peoples R China;

    Fuzhou Univ Coll Phys & Informat Engn Fuzhou 350116 Fujian Peoples R China;

    Fuzhou Univ Coll Phys & Informat Engn Fuzhou 350116 Fujian Peoples R China;

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