DocumentCode :
127878
Title :
A GHz-band gasket-free electromagnetic shielding structure with built-in cascaded SIW resonators
Author :
Yoneda, Satoshi ; Shiraki, Yasuhiro ; Sasaki, Yutaka ; Oka, Naoto ; Oh-Hashi, Hideyuki
Author_Institution :
Adv. Technol. R&D Center, Mitsubishi Electr. Corp., Amagasaki, Japan
fYear :
2014
fDate :
1-4 Sept. 2014
Firstpage :
432
Lastpage :
437
Abstract :
As operating frequencies of electronic devices have become higher recently, GHz-band electromagnetic noise leakage from gaps of a shielded enclosure may become a problem. Conductive sealing gaskets are usually applied and mostly effective in this case, however, high contact pressure is required and deterioration is therefore inevitable. In this paper, a gasket-free electromagnetic shielding structure with built-in cascaded substrate integrated waveguide (SIW) resonators is proposed and evaluated. An SIW resonator is a kind of resonant cavity embedded in a dielectric substrate, and has been widely applied for recent microwave filtering technologies. In the structure, SIW resonators with different resonant frequencies are arranged in a cascaded configuration, and placed on the inner walls of a gap. A prototype structure is designed with FR4 substrates, and measured results showed more than 25-dB improvement in the shielding effectiveness at 12-16 GHz.
Keywords :
electromagnetic shielding; microwave resonators; substrate integrated waveguides; FR4 substrate; built-in cascaded SIW resonators; cascaded substrate integrated waveguide resonators; electronic device; frequency 12 GHz to 16 GHz; gasket free electromagnetic shielding structure; gigahertz band electromagnetic noise leakage; Dielectric measurement; Dielectric substrates; Equations; Mathematical model; Noise; Resonant frequency; Substrates; GHz band; SIW resonator; electromagnetic analysis; shielding effectiveness; shielding structure;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electromagnetic Compatibility (EMC Europe), 2014 International Symposium on
Conference_Location :
Gothenburg
Type :
conf
DOI :
10.1109/EMCEurope.2014.6930945
Filename :
6930945
Link To Document :
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