Predictive Control-Based Morphology Compensation Method for Microdroplet Injection Antennae

PING Bu; MENG Fan-bo; HUANG Jin

doi:10.12263/DZXB.20230968

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Predictive Control-Based Morphology Compensation Method for Microdroplet Injection Antennae

Special Issue: Recipients of CIE Science and Technology Awards | 更新时间：2025-12-08

- Predictive Control-Based Morphology Compensation Method for Microdroplet Injection Antennae
- ACTA ELECTRONICA SINICA Vol. 52, Issue 4, Pages: 1173-1181(2024)
- 作者机构：
  
  西安电子科技大学高性能电子装备机电集成制造全国重点实验室，陕西西安 710071
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(52035010;52205411);Natural Science Foundation of Shaanxi Province(2022-JCJQ-LB018);Shaanxi Provincial Innovation Team(2022JQ-366);111 Intelligence Introduction Base(2018TD-012);Shaanxi Key Industry Chain Project(2020ZDLGY14-08)
- DOI：10.12263/DZXB.20230968
  CLC： TP272;TN455
- Received：19 October 2023，
  
  Revised：2024-02-22，
  
  Published：25 April 2024
- 稿件说明：
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平补,孟凡博,黄进. 基于预测控制的微滴喷射天线形貌补偿方法[J]. 电子学报,2024,52(04):1173-1181.

PING Bu, MENG Fan-bo, HUANG Jin. Predictive Control-Based Morphology Compensation Method for Microdroplet Injection Antennae[J]. Acta Electronica Sinica, 2024, 52(04): 1173-1181.
平补,孟凡博,黄进. 基于预测控制的微滴喷射天线形貌补偿方法[J]. 电子学报,2024,52(04):1173-1181. DOI：10.12263/DZXB.20230968

PING Bu, MENG Fan-bo, HUANG Jin. Predictive Control-Based Morphology Compensation Method for Microdroplet Injection Antennae[J]. Acta Electronica Sinica, 2024, 52(04): 1173-1181. DOI：10.12263/DZXB.20230968

摘要

微滴喷射在印刷电子领域有广阔的应用前景，可以在一台设备上完成天线介质基板与导电图案的一体化成形.打印功能器件的表面形貌质量对其电性能有着显著的影响.本文针对微滴喷射三维打印中存在的表面形貌质量难以控制的问题，提出了一种基于预测控制的打印零件形貌补偿方法.首先，基于液滴的逐层堆积行为，建立打印零件形貌预测模型，该模型使用矩阵元素更新描述零件形貌逐层演化，从而准确预测多层打印零件存在的边缘塌陷与表面粗糙度大等形貌缺陷.然后，基于该模型建立预测控制器，通过调整后续层打印图形，实现打印零件形貌缺陷的高效率补偿.采用开环打印与补偿打印的对比实验验证了该方法的有效性.实验结果表明，补偿打印方法使打印零件表面粗糙度下降了66.80%，边缘塌陷量下降了43.22%，有效补偿了打印零件的表面形貌缺陷.最后，采用微滴喷射三维打印工艺制作了微带贴片天线.采用本文提出的补偿打印方法制造的介质基板表面粗糙度低于开环打印样件，从而保证了天线射频层的高质量连接.经测试，其回波损耗参数与方向图更接近仿真结果，从而证明了本研究在印刷电子中的意义.

Abstract

Microdroplet injection has a promising application in the field of printed electronics

which can complete the integrated molding of antenna dielectric substrates and conductive patterns in a single device. The surface topography quality of printed functional devices has a significant impact on their electrical properties. In this paper

for the problem of difficult to control the surface topographic quality in microdroplet jet 3D printing

a predictive control-based topographic compensation method for printed parts is proposed. Firstly

based on the layer-by-layer stacking behavior of the droplets

a topography prediction model of the printed part is established

which uses the matrix element update to describe the layer-by-layer evolution of the part topography

so as to accurately predict the existence of topographic defects in the multilayer printed part

such as the edge collapse and the large surface roughness. Then

a prediction controller is built based on this model to realize efficient compensation of topographic defects of the printed part by adjusting the print pattern of subsequent layers. Comparison experiments between open-loop printing and compensated printing are used to verify the effectiveness of the method. The experimental results show that the compensated printing method reduces the surface roughness of the printed part by 66.80% and the edge collapse by 43.22%

which effectively compensates for the surface morphology defects of the printed part. Finally

the microstrip patch antenna was fabricated using the microdroplet jet 3D printing process. The surface roughness of the dielectric substrate fabricated with the compensated printing method proposed in this paper is lower than that of the open-loop printed samples

which ensures the high-quality connection of the RF layer of the antenna. The return loss parameters were tested to be closer to the simulation results

thus demonstrating the significance of this study in printed electronics.

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references

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