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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >High-gain bow-tie antenna using array of two-sided planar metamaterial loading for H-band applications
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High-gain bow-tie antenna using array of two-sided planar metamaterial loading for H-band applications

机译：使用双面平面超材料负载阵列的高增益领结天线，用于H波段应用

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摘要

A method to significantly increase the gain of a bow-tie antenna based on metamaterial concept is presented. The μ-negative feature of the proposed two-sided planar metamaterial (TSPM) structure is investigated by retrieving its constitutive parameters from the S-parameters. The proposed structure consists of six slabs that are loaded with a 3 × 3 array of TSPM unit cells, which are embedded in azimuth plane of a modified bow-tie antenna vertically. The TSPM unit cells provide a medium of low effective permeability. The dimensions of the slabs are 30.6 × 20.6 mm~2 at 7 GHz. To show the adaptability of the proposed high-gain antenna, the structure was designed to cover H-band applications (6-8 GHz). Consequently, a small antenna is designed in comparison with initial bow-tie structures. The corresponding return loss of the antenna is better than 10 dB over 6 to 8 GHz. The proposed metamaterial antenna was manufactured and its characteristics measured to verify the proposed idea. Good agreement between the measured and simulated data is obtained. Maximum gain measured of the antenna is 10.21 dB at 7.5 GHz, constituting a maximum gain enhancement of 7 dB for H-band in comparison with a bow-tie antenna without any metamaterial structures.
机译：提出了一种基于超材料概念的显着提高领结天线增益的方法。通过从S参数中检索其本构参数，研究了所提出的双面平面超材料（TSPM）结构的μ负特征。拟议的结构由六个平板组成，这些平板上装有3×3的TSPM单元阵列，这些单元垂直嵌入改进的领结天线的方位角平面中。 TSPM晶胞提供了低有效渗透率的介质。平板在7 GHz时的尺寸为30.6×20.6 mm〜2。为了显示所提出的高增益天线的适应性，该结构被设计为覆盖H波段应用（6-8 GHz）。因此，与最初的领结结构相比，设计了一种较小的天线。天线的相应回波损耗在6至8 GHz范围内优于10 dB。制造了所提出的超材料天线，并对其特性进行了测量以验证所提出的想法。在测量数据和模拟数据之间取得了良好的一致性。天线的最大增益在7.5 GHz时为10.21 dB，与没有任何超材料结构的领结天线相比，H波段的最大增益提高了7 dB。

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