天线3D打印技术中的闪光烧结工艺  

Intense Pulsed Light Sintering in 3D Printing of Antennas

作　　者：周宇戈[1] 张海涛[2] 黄进[2] 杨玉鹏 ZHOU Yuge;ZHANG Haitao;HUANG Jin;YANG Yupeng(Southwest China Institute of Electronic Technology,Chengdu 610036,China;Key Laboratory of Electronic Equipment Structure Design,Ministry of Education,Xidian University,Xi′an 710071,China)

机构地区：[1]中国西南电子技术研究所,成都610036 [2]西安电子科技大学电子装备结构设计教育部重点实验室,西安710071

出　　处：《电讯技术》2020年第11期1378-1383,共6页Telecommunication Engineering

基　　金：陕西省重点研发计划(2020ZDLGY1408);装备预先研究项目(41423030704)。

摘　　要：闪光烧结的辐照面积大,能量密度分布均匀,可以显著提高天线3D打印的生产效率。目前对闪光烧结工艺的研究较少,烧结机理及其影响因素认识不足。为解决上述问题,针对纳米银薄膜闪光烧结工艺过程建立了数值模型,研究了纳米银薄膜和基板的温度分布规律,揭示了辐照能量对烧结温度的影响规律。实验测量了烧结温度和电导率,电导率最高为3.09×10^7 S/m,验证了模型的准确性。利用喷墨打印和闪光烧结制备了微带天线,实测其中心频率为5.81 GHz,在中心频率处回波损耗为-24.5 dB,与设计值吻合较好。仿真和实验成果可以为闪光烧结工艺的应用提供理论指导。Intense pulsed light sintering has large working areas and uniform radiation energy density.Intense pulsed light sintering can significantly improve the efficiency of 3D printing of antennas.Few studies have been conducted on this topic and the sintering mechanism has not been fully understood.To solve these problems,a mathematic model is developed to investigate the sintering process.The temperature distribution in the silver film and substrate is revealed and the effect of irradiation energy is discussed.In addition,the sintering temperature and electrical conductivity of the sintered silver film are experimentally measured and the highest conductivity is 3.09×10^7 S/m.Based on the simulation and experimental results,a microstrip antenna has been fabricated with inkjet printing and intense pulsed light sintering.The center frequency is 5.81 GHz and the according return loss is-24.5 dB.The measured performance is consistent with design value.The simulation and experimental results can provide suggestions for applications of intense pulsed light sintering.

关 键 词：微带天线 3D打印 喷墨打印 纳米银 闪光烧结 

分 类 号：TN05[电子电信—物理电子学]