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A small meander VHF & UHF antenna by magneto-dielectric materials

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2 Author(s)
Seok Bae ; Samsung Electro-Mech. Co. Ltd., Central R&D Inst., Suwon, South Korea ; Y. Mano

Nowadays, new digital multimedia broadcasting services like DAB (digital audio broadcasting) and T-DMB (terrestrial digital multimedia broadcasting) have been realized through VHF band and will provide large opportunities for mobile business. The antenna size for DAB/T-DMB must be too large to be assembled in mobile equipments because a quarter wavelength of VHF band in vacuum (μr=1, εr=1) is about 40cm. To solve this problem, we have developed new small antennas consist of meander conductive metal pattern and magneto-dielectric (μr=1, εr=1) layers. The ferrite resin composite material and ferrite film have been used for magneto-dielectric layers. The results of electromagnetic field simulation showed that resonant length of an antenna must be 1/(μr × εr)0.5, and the resonance frequency of a magneto-dielectric antenna was about 30% of an antenna by dielectric materials.

Published in:

2005 Asia-Pacific Microwave Conference Proceedings  (Volume:4 )

Date of Conference:

4-7 Dec. 2005