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A dual-band internal antenna with a parasitic patch for mobile handsets and the consideration of the handset case and battery

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3 Author(s)
Young Jun Cho ; Sch. of Eng., Commun. Univ., Daejeon, South Korea ; Soon Ho Hwang ; Seong-Ook Park

This letter proposes a compact internal antenna of the modified planar inverted F antenna (PIFA) type with a parasitic patch. It also considers the influences of the handset case and battery. A low-profile design is implemented on both the top and bottom sides of the FR-4 substrate. The proposed antenna, with the small size of 27.5×12×7 mm3, can be easily placed in the actual handset. The measured bandwidths of the proposed antenna with handset case and battery ( VSWR<2 ) can cover 140 MHz (1740-1880 MHz) in the Korean personal communication service (KPCS) band and 90 MHz (2400-2490 MHz) in the Bluetooth band. Numerical simulation and experiment results of antenna electrical performance are investigated by considering the antenna, the phone case, and the battery.

Published in:

Antennas and Wireless Propagation Letters, IEEE  (Volume:4 )

Date of Publication:

2005

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