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Design of Small Antennas for Mobile Handsets Using Magneto-Dielectric Material

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4 Author(s)
Jungyub Lee ; Samsung Electron. Co. Ltd., Suwon, South Korea ; Jeongkyu Heo ; Joonghee Lee ; Youngho Han

This communication presents practical implementations of small antennas using magneto-dielectric (MD) materials. We first describe the manufacturing process of MD materials with a low-loss property (tan δm <; 0.1) up to 2 GHz. With this MD material as a substrate, miniaturized handset antennas are developed and the radiation performances are compared with the dielectric substrate antenna. The measured results show that the required volume of MD chip antenna is minimized to 25 mm × 5 mm × 3 mm at cellular frequency and the bandwidth is better compared to dielectric chip antennas. In addition, MD loaded antenna is designed to improve the performance of conventional antennas on the plastic carriers.

Published in:

IEEE Transactions on Antennas and Propagation  (Volume:60 ,  Issue: 4 )