研究目的
To investigate the power flow for electromagnetic wave absorbers using frequency selective surfaces by Poynting vectors and to develop a method to evaluate the flow of electromagnetic wave power upon irradiation with electromagnetic waves.
研究成果
The study successfully evaluated the flow of electromagnetic wave power in pattern absorbers using Poynting vectors. It was found that electromagnetic wave power flows horizontally along the pattern conductor surface and enters the polymer layer from the pattern interval, leading to absorption. The results suggest that the thickness of the electromagnetic wave absorber can be reduced by optimizing the flow-path of the electromagnetic power inside the pattern absorber.
研究不足
The study focuses on the power flow in electromagnetic wave absorbers using frequency selective surfaces and does not extensively explore the optimization of absorber materials or the impact of varying environmental conditions on absorption characteristics.
1：Experimental Design and Method Selection:
The study used Poynting vectors to evaluate the flow of power generated by an electromagnetic wave absorber. The time averaged complex Poynting vector was calculated with an electric field and magnetic field at each point on/above and in the electromagnetic wave absorber.
2：Sample Selection and Data Sources:
The structure of the designed pattern absorber included a layer of aluminum foil attached to a PET film, serving as both the patterned layer and back reflector of the absorber, applied to the absorption layer (polymer layer).
3：List of Experimental Equipment and Materials:
A simulator (MWSTUDIO, Computer Simulation Technology AG) based on FD-TD was used for simulation. The aluminum conductivity value was set to 3.54 × 107 S/m.
4：54 × 107 S/m.
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The absorption properties were simulated using a square pattern. The electromagnetic field distribution was obtained using the simulator, and the reflection characteristics were evaluated using the transmission line matrix (TLM) method.
5：Data Analysis Methods:
The Poynting vector was used to analyze the power flow, and the absorption characteristics were summarized based on the simulation results.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
