Multiple-frequency antenna structure

Details Multiple-frequency antenna structure Multiple-frequency antenna structure

2005-04-05

2005-04-05

Le, Hoanganh (Department: 2821)

Communications: radio wave antennas

Antennas

With radio cabinet

C343S7000MS

Reexamination Certificate

active

06876332

ABSTRACT:
A multiple-frequency antenna includes a feed-line and a first radiating element electrically connected to the feed-line. A tuning element is electrically connected to the first radiating element. The tuning element contains at least two stubs, each stub having a fixed end connected to the first radiating element and a free end spaced apart from each other. The first radiating element and the tuning element serve to generate a first and a third operating frequency of the multiple-frequency antenna. The antenna also includes a second radiating element electrically connected to the feed-line, the second radiating element serving to generate a second operating frequency of the multiple-frequency antenna.

REFERENCES:
patent: 6008774 (1999-12-01), Wu
patent: 6747600 (2004-06-01), Wong et al.
patent: 20040017315 (2004-01-01), Fang et al.
patent: 20040027295 (2004-02-01), Huber et al.

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