A Broadband Radar Absorber Based on Perforated Magnetic Polymer Composites Embedded With FSS
- 27 November 2013
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Magnetics
- Vol. 50 (5), 1-5
- https://doi.org/10.1109/tmag.2013.2293129
Abstract
This paper presents a design method of broadband radar absorber (RA) combining together the features of frequency selective surfaces (FSSs), subwavelength hole array, and magnetic absorbing sheets. The absorber is constructed of a periodic array of square conducting patches embedded into a magnetic absorbing substrate perforated with circular hole arrays and backed by a metal ground. The absorption characteristics of the magnetic absorbing substrate are tuned and improved by means of perforating holes and embedding FSSs. After optimizing the dimensions of the holes and FSSs, the RA with a thickness of 2.4 mm achieves a reflection coefficient less than -10 dB from 6.3 to 17.3 GHz, which is nearly 3.6 times the bandwidth of the magnetic absorbing substrate. Meanwhile, the weight of the RA decreases by 15% due to the hole perforation, and the reflection coefficient is insensitive to incident angle from 0° to 30° for both TE and TM polarizations.Keywords
This publication has 20 references indexed in Scilit:
- Enhancing and broadening absorption properties of frequency selective surfaces absorbers using FeCoB-based thin filmJournal of Applied Physics, 2012
- Extrinsic permeability of Fe-based flake composites from intrinsic parameters: A comparison between the aligned and random casesJournal of Magnetism and Magnetic Materials, 2011
- Simple and Accurate Analytical Model of Planar Grids and High-Impedance Surfaces Comprising Metal Strips or PatchesIEEE Transactions on Antennas and Propagation, 2008
- Effects of particle morphology and crystal structure on the microwave properties of flake-like nanocrystalline Fe3Co2 particlesJournal of Alloys and Compounds, 2008
- Tailoring the AMC and EBG Characteristics of Periodic Metallic Arrays Printed on Grounded Dielectric SubstrateIEEE Transactions on Antennas and Propagation, 2006
- A Theoretical Approach to Matching Characteristics of a Novel Absorber Based on the Concept of Equivalent Transformation Method of Material ConstantIEICE Transactions on Electronics, 2006
- A method of effective use of ferrite for microwave absorberIEEE Transactions on Microwave Theory and Techniques, 2003
- Application of a microgenetic algorithm (MGA) to the design of broadband microwave absorbers using multiple frequency selective surface screens buried in dielectricsIEEE Transactions on Antennas and Propagation, 2002
- On the application of the microgenetic algorithm to the design of broad-band microwave absorbers comprising frequency-selective surfaces embedded in multilayered dielectric mediaIEEE Transactions on Microwave Theory and Techniques, 2001
- Frequency Selective SurfacesPublished by Wiley ,2000