Couple-fed multi-band loop antenna

Details Couple-fed multi-band loop antenna Couple-fed multi-band loop antenna

2011-07-12

2011-07-12

Dinh, Trinh V (Department: 2821)

Communications: radio wave antennas

Antennas

High frequency type loops

C343S7000MS, C343S850000, C343S860000

Reexamination Certificate

active

07978141

ABSTRACT:
The present invention is related to a coupled-fed multi-band loop antenna. The antenna comprises a dielectric substrate, a ground plane located on the dielectric substrate and has a grounding point, a radiating portion which comprise a supporter, a coupling trip and a loop strip, and a matching circuit. The coupling strip and loop strip are both located on the supporter, with the coupling strip surrounded by the loop strip. The length of loop strip is about 0.25 wavelength of the antenna's first resonant mode. The loop strip has a first end paralleling with the coupling loop, a second end and a shorting point near the second end and electrically connected to the grounding point on the ground plane. The matching circuit is on the dielectric substrate. One terminal of the matching circuit is connected to the coupling strip, and the other is connected to a signal source.

REFERENCES:
patent: 5861854 (1999-01-01), Kawahata et al.
patent: 6800832 (2004-10-01), Hutchison et al.
patent: 6903690 (2005-06-01), Leclerc et al.
patent: 6903691 (2005-06-01), Sato et al.
patent: 7196667 (2007-03-01), Watada et al.
patent: 7265726 (2007-09-01), Kenoun et al.
patent: 2002/0118075 (2002-08-01), Ohwada et al.
patent: 2007/0268191 (2007-11-01), Ishizuka et al.
patent: 0 814 535 (1997-12-01), None
patent: 1 154 516 (2001-11-01), None
patent: 2 860 927 (2005-04-01), None
patent: 10-173425 (1998-06-01), None

Affiliated with

Also associated with

Rating

Couple-fed multi-band loop antenna does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Couple-fed multi-band loop antenna, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Couple-fed multi-band loop antenna will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2643181