DocumentCode :
18500
Title :
Low-Cost Metamaterial Absorbers for Sub-GHz Wireless Systems
Author :
Costa, Francois ; Genovesi, Simone ; Monorchio, Agostino ; Manara, Giuliano
Author_Institution :
Dept. of Inf. Eng., Univ. of Pisa, Pisa, Italy
Volume :
13
fYear :
2014
fDate :
2014
Firstpage :
27
Lastpage :
30
Abstract :
The possibility of realizing low-cost ultra-thin and angularly stable absorbers at low frequencies is investigated. It is demonstrated that ultra-thin absorbers comprising metallic high impedance surfaces can be realized by using a low-cost fabrication process. This approach opens up the realistic possibility of employing such absorbing panels to improve the performance of wireless systems operating in complex environments (e.g., radio frequency identification systems). The substrate here employed is a common cardboard panel, and the metallized parts are realized through a conventional aluminum foil or by using a commercial spray paint used for shielding. Experimental tests are provided both in a waveguide environment at 5 GHz and in free space at 868 MHz.
Keywords :
electromagnetic shielding; electromagnetic wave absorption; microwave devices; microwave metamaterials; radiofrequency identification; waveguides; angularly stable absorber; cardboard panel; frequency 5 GHz; frequency 868 MHz; low-cost fabrication process; low-cost metamaterial absorber; low-cost ultrathin absorber; metallic high impedance surface; radiofrequency identification system; shielding; spray paint; subGHz wireless system; waveguide environment; Arrays; Dielectrics; Frequency selective surfaces; Impedance; Metamaterials; Substrates; Surface impedance; Electromagnetic absorbers; frequency selective surfaces (FSSs); high impedance surface (HIS); metamaterials; radio frequency identification (RFID);
fLanguage :
English
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
Publisher :
ieee
ISSN :
1536-1225
Type :
jour
DOI :
10.1109/LAWP.2013.2294791
Filename :
6680632
Link To Document :
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