High-Temperature Additively Manufactured C-Band Antennas Using Material Jetting of Zirconia and Micro-Dispending of Platinum Paste
High-Temperature Additively Manufactured C-Band Antennas Using Material Jetting of Zirconia and Micro-Dispending of Platinum Paste
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DOI：
10.1109/ojap.2022.3218798
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发表时间：
2022
影响因子：
4
通讯作者：
Carlos R. Mejias-Morillo;Jayaprakash Shivakumar;Seng Loong Yu;Blake A. Roberts;P. Cortes;E. MacDonald;A. Polotai;E. Rojas-Nastrucci
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文献类型：
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作者：
Carlos R. Mejias-Morillo;Jayaprakash Shivakumar;Seng Loong Yu;Blake A. Roberts;P. Cortes;E. MacDonald;A. Polotai;E. Rojas-Nastrucci
增材制造（AM）能够为临时和按需制造开发快速，低成本的原型，以修复和保持系统的连续运行，特别是在系统恢复不能等待新组件运输的时间敏感的情况下。因此，工业、军事和学术界继续投资于这些技术，以实现基于高温电介质和导体的新型3D几何形状，以承受恶劣的环境，例如石油和天然气、国防和航空航天领域中常见的环境。本文报道了3D打印的氧化钇稳定氧化锆（YSZ）在2-6 GHz的电磁特性以及烧结铂油墨的DC和RF有效电导率，其中增材制造的共面波导（CPW）的耗散损耗在频率低于4 GHz时小于0.05 dB/mm。此外，AM CPW暴露于高达600 °C的热循环，以研究材料的热疲劳和潜在降解。然而，样品在热循环后没有表现出明显的降解。此外，设计，制造和测试了基于3D打印的YSZ和铂油墨的双层背馈天线。结果表明，在4.1 GHz的测量增益为2.5 dBi和9.6 dB的前后比。
Additive manufacturing (AM) enables the development of rapid, low-cost prototypes for ad-hoc and on-demand manufacturing to repair and keep up the continuous operation of systems, especially in time-sensitive scenarios where the system recovery cannot wait for the shipment of new components. Therefore, the industry, military, and academia continue to invest in these technologies to potentially achieve novel 3D geometries based on high-temperature dielectric and conductors to endure harsh environments, such as commonly found in the oil and gas, defense, and aerospace sectors. This paper reports the electromagnetic properties of 3D-printed Yttria-Stabilized Zirconia (YSZ) for 2–6 GHz and the DC and RF effective conductivity of sintered platinum ink, where the dissipative losses of the additively manufactured coplanar waveguides (CPWs) are less than 0.05 dB/mm when the frequency is below 4 GHz. In addition, the AM CPWs are exposed to thermal cycling up to 600 °C to study the material’s thermal fatigue and potential degradation. However, the samples do not exhibit appreciable degradation after thermal cycling. Also, a two-layer back-fed antenna based on 3D-printed YSZ and platinum ink is designed, manufactured, and tested. Results show a measured gain of 2.5 dBi and a front-back ratio of 9.6 dB at 4.1 GHz.