A Bandpass Shielding Enclosure for Modern Handheld Communication Devices

Cheng-Nan CHIU  Yu-Fan KUO  

Publication
IEICE TRANSACTIONS on Communications   Vol.E90-B   No.6   pp.1562-1564
Publication Date: 2007/06/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e90-b.6.1562
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Electromagnetic Compatibility(EMC)
Keyword: 
shielding,  frequency-selective surface,  photonic bandgap,  RF,  EMI,  

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Summary: 
This letter proposes a new bandpass shielding enclosure (BPSE) for modern handheld communication devices. This enclosure is characterized by high transmittance at the specified wireless signal band and high shielding effectiveness (SE) outside this band. In addition, it has little influence on the impedance-matching bandwidth and antenna patterns of an internal antenna embedded inside the device. A prototype was created, simulated and measured. The simulated and measured results demonstrate the promising performance of this newly proposed shielding enclosure.