DataVXACS Applied Materials & InterfacesPaper
journal article·2021-10-06

High-Quality-Factor AlON Transparent Ceramics for 5 GHz Wi-Fi Aesthetically Decorative Antennas

Chao Du, Di Zhou, Shu-Zhao Hao, He-Tuo Chen, Jian Zhang, Shi-Kuan Sun, Tao Zhou, Ming-Zhao Dang, Shao-Fei Wang, Hai-Wen Liu, Long Li, Zhuo Xu

ACS Applied Materials & Interfaces· Volume 13· Issue 39
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Source abstract

Abstract

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.
Source: openalex_inverted_index · Quality: baseline

Research context

Ceramics & glasses

OpenAlex topics: Antenna Design and Analysis · Advanced Antenna and Metasurface Technologies · Microwave Engineering and Waveguides

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

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

State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China

CAS Key Laboratory of Transparent Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China

School of Material Science and Energy Engineering, Foshan University, Foshan, Guangdong 528000, China

School of Electronic and Information Engineering, Hangzhou Dianzi University, Hangzhou 310018, China

Guangdong Fenghua Advanced Technology Holding Co., Ltd, Zhaoqing, Guangdong 526000, China

School of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China

School of Electronic Engineering, and the Collaborative Innovation Center of Information Sensing and Understanding, Xidian University, Xi’an 71007, China

Funding

Natural Science Foundation of Shanghai · Ministry of Education of the People's Republic of China · State Key Laboratory of Advanced Materials and Electronic Components, Guangdong Fenghua Advanced Technology Holding · National Natural Science Foundation of China · Higher Education Discipline Innovation Project · Shaanxi Province

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