Abstract

Fabrication of microstrip transmission line (MTL) in a one-step and direct process was a challenge in many of the recent research projects. In this study, for the first time, an MTL is printed on RO4003C substrate using water-based reactive inks and ink-jet printing technique. The deposited MTL structure includes an ink-jet printed silver line, a dielectric layer, and a continuous metallic ground plate. The conductivity of the printed MTL is measured using four-point probe method. Experimental results showed that the absorption rate of MTL at the 1–5 GHz frequency range is close to 70% revealing a good agreement with the results obtained from the software simulation. Increasing the conductivity of the deposited layer up to 1950 S/m will increase the electromagnetic (EM) absorbing power, while increasing conductivity after this maximum causes a constant decrease in the absorption rate. Fabricating a layer with the conductivity close to the bulk silver can ultimately reduce the absorption rate close to zero where the product will be suitable for use as an interconnection in EM wave handling circuits.

中文翻译：

---

喷墨印刷法制备电磁波吸收材料

摘要

在许多最近的研究项目中，一步一步直接制造微带传输线（MTL）是一项挑战。在这项研究中，首次使用水基反应性油墨和喷墨印刷技术将MTL印刷在RO4003C基材上。沉积的MTL结构包括喷墨印刷的银线，介电层和连续的金属接地板。使用四点探针法测量印刷的MTL的电导率。实验结果表明，在1–5 GHz频率范围内MTL的吸收率接近70％，这与从软件仿真获得的结果吻合良好。将沉积层的电导率提高到1950 S / m将增加电磁（EM）吸收功率，在此最大值之后增加电导率会导致吸收率不断降低。制造导电率接近于块状银的层最终可以降低吸收率，接近于零，此时该产品将适合用作EM波处理电路中的互连。