IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
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Multiband EMI filter based on metamaterials
Ignacio GilRaúl FernándezJavier GagoJosep Balcells
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2010 Volume 7 Issue 9 Pages 563-568

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Abstract

A novel compact multiband microstrip EMI filter based on metamaterials is presented. The filter is implemented by means of split-rings resonators and complementary spiral sub-wavelength resonators, conveniently coupled to the victim transmission line. The suitable combination of these resonators allows us to design several stop-band frequency responses located at 900MHz (RFID UHF), 1.8GHz (GSM) and 2.4GHz (ISM) with a significant rejection level. A 3-stages/5-stages rejection band filter has been designed and fabricated in a PCB. The experimental results show a significant rejection level in agreement with the electromagnetic simulations.

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© 2010 by The Institute of Electronics, Information and Communication Engineers
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