Antenna apparatus and portable wireless device using the same

Details Antenna apparatus and portable wireless device using the same Antenna apparatus and portable wireless device using the same

2006-02-14

2008-08-26

Dinh, Trinh V (Department: 2821)

Communications: radio wave antennas

Antennas

With radio cabinet

C343S702000, C343S7000MS, C343S846000, C343S829000

Reexamination Certificate

active

07417591

ABSTRACT:
An antenna apparatus and a portable wireless device using the same are disclosed, in which a coupling between antenna elements is reduced and an isolation property is improved even when frequencies of antenna elements are close or overlapped. The antenna apparatus includes a ground board, a first antenna element corresponding to a first frequency band, a second antenna element corresponding to a second frequency band in the vicinity of, or overlapped with the first frequency band, a first power feeding part connecting the ground board to the first antenna element and a second power feeding part connecting the ground board to the second antenna element, in which the first antenna element is arranged in a direction at an angle of an integer multiple of 90 degrees with respect to a long edge of the ground board, and the second antenna element is arranged in parallel with the long edge of the ground board.

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“Antenna Frequency Scaling”, The ARRL Antenna Book COpy right 1988, p. 2-24 to 2-25.

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