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High gain L-T slots-loaded dual-band elliptical polarized antenna

机译：高增益L-T缝隙加载双频带椭圆极化天线

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摘要

In this letter, L-T slots-loaded dual-band elliptical polarized antenna etched on a single layer substrate is proposed. This antenna is composed from four T-shaped slots near patch boundary and two pair of L-shaped slots etched at patch corner with a rectangular slot located at the center. These combination slots are found out to produce two different frequency bands for LTE and wireless local area network application. The lower band of 2.5-2.69 GHz and the upper band of 5.725-5.85 GHz are controlled by the T-shaped slots and L-shaped slots, respectively. By symmetrically slots and properly positioning the feed position, the proposed antenna exhibits high gain of 6.91 dBi and 7.22 dBi at 2.6 GHz and 5.8 GHz, respectively, even with the compact dimensions of 44 x 44 x 1.6 mm(3). Due to the orthogonal surface currents at first and third resonant modes, the proposed antenna gives an elliptical polarization with axial ratios of 7.536 dB at 2.656 GHz and 5.76 dB at 5.8 GHz. The simulation and measurement results of reflection coefficient, gain, and radiation pattern are comparable. (c) 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:184-188, 2016
机译：在这封信中，提出了在单层基板上刻蚀的加载L-T缝隙的双波段椭圆极化天线。该天线由贴片边界附近的四个T形槽和在贴片角刻蚀的两对L形槽组成，矩形槽位于中心。发现这些组合时隙产生用于LTE和无线局域网应用的两个不同的频带。 2.5-2.69 GHz的较低频段和5.725-5.85 GHz的较高频段分别由T形槽和L形槽控制。通过对称的缝隙并正确定位馈电位置，即使尺寸为44 x 44 x 1.6 mm（3），建议的天线在2.6 GHz和5.8 GHz时仍分别具有6.91 dBi和7.22 dBi的高增益。由于在第一和第三谐振模式下正交的表面电流，所提出的天线产生椭圆极化，其轴向比率在2.656 GHz时为7.536 dB，在5.8 GHz时为5.76 dB。反射系数，增益和辐射方向图的仿真和测量结果是可比的。 （c）2016 Wiley Periodicals，Inc.微波选择技术通讯，2016年58：184-188

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