Multi-band frequency loop-slot antenna

Details Multi-band frequency loop-slot antenna Multi-band frequency loop-slot antenna

2007-04-10

2007-04-10

Dinh, Trinh Vo (Department: 2821)

Communications: radio wave antennas

Antennas

Slot type

C343S767000, C343S768000, C343S7000MS

Reexamination Certificate

active

11200430

ABSTRACT:
A loop-slot antenna defined by a conductive plate includes a first slot and a second slot. The first slot and the second slot divide the conductive plate into a first strip, a second strip and a patch element. The first slot is an L-shaped slot and includes a transverse slot section extending along the lower edge of the conductive plate and a longitudinal slot section extending along the left edge of the conductive plate and opening to the upper edge of the conductive plate. The first slot is operated at a first frequency. The first strip includes a transverse branch and a longitudinal branch that has a feed point. The second slot opens upward. The second strip has a free end on which a grounding point is disposed. The patch element is formed between the first and the second slots and operable at a second frequency.

REFERENCES:
patent: 7102575 (2006-09-01), Pan
patent: 2003/0076268 (2003-04-01), Tarvas et al.
patent: 2003/0112195 (2003-06-01), Cheng et al.
patent: 2004/0155823 (2004-08-01), Kossiavas et al.
patent: 2005/0237251 (2005-10-01), Boyle et al.
patent: 2006/0290569 (2006-12-01), Boyle

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