Miniaturized and Flexible FSS-Based EM Shields for Conformal Applications

Abstract

This paper reports on very efficient and highly miniaturized wideband Polygon shaped Frequency Selective Surface (PFSS) shields for planar and conformal applications in X band. These shields have been analyzed for both lossy as well as for low loss substrates. The conformal configurations of PFSS are particularly investigated for inward, outward and double curved profiles useful for a variety of applications. The conformal designs have been tested for two different radii of curvatures. The models have been simulated using a hybrid simulation approach for electrically large geometries. Equivalent circuit model as well as analytical model is determined. The proposed PFSS designs offer stable angular response up to 60 0 for planar and all conformal geometries on both lossy and low loss prototypes. Shielding effectiveness of at least 55 dB and 48 dB has been measured for flat/non conformal and conformal configurations.

Performance evaluation of compact FSS‐integrated flexible monopole antenna for body area communication applications

“…In the recent literature, many design configurations have been studied to incorporate fractal‐inspired antennas to provide compactness, dual‐band, and wide‐band for wearable applications 4–8 . Many frequency selective surface (FSS) structures have been reported 9–14 in the literature to alter the radiation characteristics of the antenna for the desired applications. A polygon‐shaped miniaturized FSS is presented as an electromagnetic shield for conformal applications 11 .…”

“…Many frequency selective surface (FSS) structures have been reported 9–14 in the literature to alter the radiation characteristics of the antenna for the desired applications. A polygon‐shaped miniaturized FSS is presented as an electromagnetic shield for conformal applications 11 . Convoluted elements and square slots FSS is introduced to obtain compactness of the FSS in previous studies 10,13 .…”

Design of Polarization Insensitive Frequency Selective Surface for Electromagnetic Shielding Application

“…This spatial filtering property of FSS is also useful for enhancing the gain of the antenna [8,9] and steering the beam in a particular direction [10]. Notably, for electromagnetic shielding applications, FSS based band stop filter effectively reduces electromagnetic interference [11][12][13]. Traditionally metallic enclosures are used to provide electromagnetic shielding for electronic circuitry.…”

3D printing conformal metasurface for Fabry‐Perot resonator antenna application

“…Besides, there are also some researches on the conformal metasurface (MS) [12][13][14] and conformal frequency selective surface (FSS). 15 A sparse conformal MS is designed to manipulate the electromagnetic wave in Ref. 13.…”

“…High efficiency and wideband miniaturized FSS based on polygon unit cell is presented in Ref. 15. The FSS can be applied in plane and conformal applications.…”