Mobile terminal using an internal antenna with a conductive...

Details Mobile terminal using an internal antenna with a conductive... Mobile terminal using an internal antenna with a conductive...

2007-06-06

2010-06-29

Chen, Shih-Chao (Department: 2821)

Communications: radio wave antennas

Antennas

With radio cabinet

C343S7000MS, C343S818000

Reexamination Certificate

active

07746280

ABSTRACT:
A mobile communication terminal may be made smaller by using an internal antenna and a conductive layer. The conductive layer is spaced apart from the antenna by a fixed gap, and the conductive layer may be located either internally or externally to the terminal housing. The addition of the conductive layer provides a second resonant frequency in a higher frequency band than a first resonant frequency. Because the conductive layer has a relative smaller amount of radiation and is more directly affected by a human body than the internal antenna with a relatively larger amount of radiation, the performance characteristics of the terminal can be increased by a corresponding amount.

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Kingsley S: “Advances in Handset Antenna Design” RF Design, Primedia Business Magazines & Media, Overland Park, KS, U.S., vol. 28, No. 5, May 2005, p. 16, 18, 20, 22, XP001242240 ISSN: 0163-321X *p. 16, col. 3, lines 4-6*.

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