Engineering Dielectric Genes in Debye Relaxation Model toward Frequency-Band-Reliant Electromagnetic Responses

Area of Science:

• Materials Science
• Electromagnetics
• Physics

Background:

• Electromagnetic wave absorption (EMWA) materials are crucial for wireless communications and the smart economy.
• Dielectric loss EMWA materials are of significant interest due to their unique properties.
• Existing research primarily focuses on material synthesis, with limited systematic explanation of dielectric loss mechanisms.

Purpose of the Study:

• To systematically explain the mechanism of dielectric loss in EMWA materials.
• To introduce the dependence of EMWA on dielectric parameters across different frequencies.
• To construct a dynamic trend model for predicting EMWA characteristics.

Main Methods:

• Utilizing the concept of "dielectric genes" as a foundational principle.
• Employing the Debye relaxation model as a theoretical framework.
• Developing a dynamic trend model for EMWA prediction.

Main Results:

• Detailed explanation of how EMWA depends on individual dielectric parameters at various frequencies.
• Construction of a predictive dynamic trend model for EMWA properties.
• Identification of key factors influencing dielectric loss in EMWA materials.

Conclusions:

• The study provides a mechanistic understanding of dielectric loss in EMWA materials.
• The developed dynamic model offers a novel approach for predicting EMWA performance.
• This work inspires the future design of advanced dielectric-loss absorption materials.