Temperature-stable Y2.95Dy0.05MgAl3SiO12 garnet-type 5G millimeter-wave dielectric ceramic resonator antenna

Jiang, Yu; Liu, Huan; Xiu, Zhiyu; Wu, Guofa; Mao, Minmin; Luo, Xinjiang; Liu, Bing; Lu, Zhilun; Qi, Zeming; Sun, Dongyang; Song, Kaixin

Abstract

Temperature stability is a crucial property of microwave electronic components, as well as a pivotal aspect of assessing the performance of microwave dielectric ceramics. In this article, the temperature coefficient of high-Q × f garnet-type Y2.95Dy0.05MgAl3SiO12 microwave ceramic was regulated by doping with different mass ratios of TiO2. Further, combined with the Kramers-Kronig (K–K) formula, the dielectric loss and theoretical permittivity of Y2.95Dy0.05MgAl3SiO12-9 wt%TiO2 ceramic are calculated by infrared reflection spectrum data, which coincide exactly with the experimental results. Importantly, a 5G millimeter-wave antenna was fabricated with Y2.95Dy0.05MgAl3SiO12-9 wt%TiO2 ceramic and tested at 25 °C and 85 °C, respectively. The center frequencies of measurement are 25.99 GHz at 25 °C and 26.12 GHz at 85 °C, and the frequency shift with temperature is rather low, showing excellent temperature stability. The simulated efficiency of 88.5% and gain of 6.05 dBi also indicate that the antenna has favorable radiation characteristics. The results show that the temperature-stable Y2.95Dy0.05MgAl3SiO12-9 wt%TiO2 ceramic antenna has broad prospect in 5G millimeter wave communication.

• Journal Article Type: Article
• Acceptance Date: Aug 8, 2022
• Online Publication Date: Aug 16, 2022
• Publication Date: 2022-12
• Deposit Date: Aug 18, 2022
• Publicly Available Date: Aug 17, 2023
• Journal: Ceramics International
• Print ISSN: 0272-8842
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 48
• Issue: 23
• Pages: 35085-35091
• DOI: https://doi.org/10.1016/j.ceramint.2022.08.098
• Keywords: Infrared reflectivity spectroscopy, Garnet, Millimeter-wave antenna
• Public URL: http://researchrepository.napier.ac.uk/Output/2897566