Development of an Analytical Approach to Design FSS Absorber as per User Requirement
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ORIGINAL ARTICLE
Development of an Analytical Approach to Design FSS Absorber as per User Requirement Udeshwari Jamwal1 · Naina Narang2,3 · Dharmendra Singh2 · K. L. Yadav1 Received: 4 July 2020 / Accepted: 31 August 2020 © Indian National Academy of Engineering 2020
Abstract An enormous literature is available for the development of electromagnetic (EM) wave absorbers using dielectric materials and frequency selective surfaces (FSS). The prevalent approach of designing the EM wave absorber requires a significant amount of time and resources. In this paper, we have illustrated an approach to design user-defined EM wave absorber impregnated with a simple cross-dipole FSS structure. The proposed model is based on the equivalent circuit modeling and has been validated using the full-wave simulation results. The paper presents a proof of concept demonstrating the efficient designing technique without the use of trial and error methods and with minimum computational and time complexity. The concept shows that the model produces a simple structure and accomplishes the goals set by the user. In the future, fabrication of the absorber sheet will be carried out to validate the proposed approach. Keywords Frequency selective surfaces (FSS) absorbers · Broadband absorber · Cross-dipole · Equivalent circuit model (ECM)
Introduction With the increasing population, there has been a significant increase in the number of electronic devices used in the telecommunication and electronic industry. These electronic devices generate undesirable radiations which may couple or interfere with the regular operating neighboring electronic devices and cause electromagnetic interference (EMI) (Rathi and Panwar 2018). The EMI affects not only entire electronic systems but also affects military and space exploration activities (Grellier et al. 2014). The need for secure data, protection of military equipment from electromagnetic (EM) pulse, and miniaturization of electronic systems are some of the aspects that generate concern about EMI. The effect of EMI can be reduced using EM wave absorbing * Dharmendra Singh [email protected] 1
Department of Physics, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
2
Department of Electronics and Communication Engineering, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
3
Department of CCE, Manipal University Jaipur, Jaipur 303007, Rajasthan, India
materials. The performance of absorbing material depends on impedance characteristics and intrinsic EM dissipation coefficient, i.e., on the electrical and magnetic properties of the material (permittivity, permeability, and conductivity values), shape, size (nano-size effect), and morphology of the absorber. The EM wave energy is dissipated and transformed into heat energy when it interacts with absorbing material due to dielectric and magnetic losses; thus, an effective combination of dielectric and magnetic materials is used for EM wave absorption. It has been seen that the combination o
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