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In this study., an optically transparent wideband dipole antenna is proposed, utilizing indium tin oxide (ITO) material. The proposed antenna is composed of a typical dipole antenna and two pairs of symmetrically loaded stubs. Compared with the conventional dipole antenna, the proposed one matches the imaginary part of the main dipole input impedance by loading simple symmetric stubs. In return, the bandwidth of the antenna is significantly increased and the radiation efficiency is improved. To realize the antenna optical transparent, the glass BF33 is selected as the substrate and ITO material is set as the conductor. The optimized results indicate that the antenna achieves a bandwidth of 126% <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">(S₁₁ < -10dB)</tex> from 1.6 GHz up to 7.1 GHz, while ensuring 80% transparency. The antenna has good radiation characteristics and a wide range of applications in vehicular communication and other scenarios.
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Zhong et al. (2024) studied this question.
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