Antenna and radio device using the same

Details Antenna and radio device using the same Antenna and radio device using the same

2005-08-16

2005-08-16

Dinh, Trinh Vo (Department: 2821)

Communications: radio wave antennas

Antennas

With radio cabinet

C343S7000MS, C343S895000

Reexamination Certificate

active

06930641

ABSTRACT:
An inverted-F type antenna and a wireless device using the same. The antenna element comprises a grounding conductor plate and a conductor at least a part of which is generally spiral in shape and is disposed above the grounding conductor plate apart from the grounding conductor plate. A stub connects one end of the antenna element with the grounding conductor plate. A feeding point locates on the antenna element at a predetermined distance from one end of the antenna element and a feeder line electrically connects the feeding point with an external circuit. The antenna element is secured on the grounding conductor plate with a support member made of a dielectric material.

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“Radiation Characteristics of Shunt-Driven Inverted L-Type Antenna”, J. Nagai et al.

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