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High-Quality-Factor AlON Transparent Ceramics for 5 GHz Wi-Fi Aesthetically Decorative Antennas.
Du, Chao; Zhou, Di; Hao, Shu-Zhao; Chen, He-Tuo; Zhang, Jian; Sun, Shi-Kuan; Zhou, Tao; Dang, Ming-Zhao; Wang, Shao-Fei; Liu, Hai-Wen; Li, Long; Xu, Zhuo.
Afiliação
  • Du C; Multifunctional Materials and Structures, Key Laboratory of the Ministry of Education, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.
  • Zhou D; Multifunctional Materials and Structures, Key Laboratory of the Ministry of Education, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.
  • Hao SZ; Multifunctional Materials and Structures, Key Laboratory of the Ministry of Education, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.
  • Chen HT; State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China.
  • Zhang J; CAS Key Laboratory of Transparent Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China.
  • Sun SK; State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China.
  • Zhou T; CAS Key Laboratory of Transparent Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China.
  • Dang MZ; School of Material Science and Energy Engineering, Foshan University, Foshan, Guangdong 528000, China.
  • Wang SF; School of Electronic and Information Engineering, Hangzhou Dianzi University, Hangzhou 310018, China.
  • Liu HW; Guangdong Fenghua Advanced Technology Holding Co., Ltd, Zhaoqing, Guangdong 526000, China.
  • Li L; School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
  • Xu Z; School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
ACS Appl Mater Interfaces ; 13(39): 46866-46874, 2021 Oct 06.
Article em En | MEDLINE | ID: mdl-34559512
Transparent material has been widely used in product design and has seen a large increase in its use. In this paper, a kind of aesthetically decorative 5 GHz Wi-Fi dielectric resonator antenna (DRA) of aluminum oxynitride (AlON) transparent ceramic has been designed. High-quality-factor AlON transparent dielectric ceramics were fabricated by presintering at 1780 °C and further cold isostatic pressing (CIP) under a 200 MPa argon atmosphere. For a 9.0 mm thick specimen, the in-line light transmittance reached 83%. Optimum dielectric constant (εr = 9.32), quality factor (Qf = 47 960) and temperature coefficient (TCF = -51.7 ppm/°C) was achieved in the AlON transparent ceramic by cold isostatic pressing. As a result, the proposed aesthetically decorative DRA can achieve an impedance bandwidth of 32% (4.48-6.19 GHz), a high radiation efficiency of 85%, and a low cross-polarization discrimination (XPD) of -30 dB. To achieve a broad bandwidth, the proposed antenna was excited in its dominant TE111x mode and higher-order TE113x mode. The proposed antenna is thus an excellent candidate for an indoor decoration Wi-Fi antenna.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2021 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2021 Tipo de documento: Article