Multi-band antenna

Details Multi-band antenna Multi-band antenna

2007-08-14

2009-11-17

Owens, Douglas W (Department: 2821)

Communications: radio wave antennas

Antennas

Microstrip

C343S702000, C343S767000, C343S846000, C343S895000

Reexamination Certificate

active

07619569

ABSTRACT:
A multi-band antenna has a first radiating conductor defining a first side connected to a feeding conductor and a short portion, and a second side opposite to the first side and connected to a second radiating conductor, a third radiating conductor and a fourth radiating conductor. The second radiating conductor is arranged between the third radiating conductor and the fourth radiating conductor. The length of the first radiating conductor and the second radiating conductor resonates at a first frequency range and a second frequency range which is double frequency higher than the first frequency range. The length of the first radiating conductor and the third radiating conductor resonates at a third frequency range which is higher than and close to the second frequency range. The dimension of the fourth radiating conductor has an effect on antenna characteristics in the third frequency range.

REFERENCES:
patent: 7161541 (2007-01-01), Chen
patent: 7388543 (2008-06-01), Vance
patent: 7564411 (2009-07-01), Piisila et al.
patent: 2009/0002243 (2009-01-01), Dahlstrom et al.

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