Wide band co-planar waveguide feeding circularly polarized...

Details Wide band co-planar waveguide feeding circularly polarized... Wide band co-planar waveguide feeding circularly polarized...

2008-04-03

2009-10-06

Dinh, Trinh V (Department: 2821)

Communications: radio wave antennas

Antennas

Microstrip

C343S822000

Reexamination Certificate

active

07598914

ABSTRACT:
A wide band co-planar waveguide feeding circularly polarized antenna is disclosed. The wide band co-planar waveguide feeding circularly polarized antenna comprises: a substrate having a surface; a signal feeding unit located on the surface and comprising a feeding bar, a matching portion, a first extended portion, and a second extended portion; a first ground unit located on the surface and having a first ground bar; and a second ground unit located on the surface and having a second ground bar; wherein, the first extended portion and the second extended portion are respectively extended from the matching portion. Besides, the matching portion is electrically connected with the feeding bar, the first extended portion and the second extended portion. Moreover, the feeding bar is located between the first ground bar and the second ground bar.

REFERENCES:
patent: 2005/0156787 (2005-07-01), Myoung et al.
patent: 2006/0066487 (2006-03-01), Park et al.
patent: 2007/0290926 (2007-12-01), Tseng
patent: 2008/0169982 (2008-07-01), Mei
T.N. Chang and G.A. Tsai, A wideband coplanar waveguide-fed circularly polarised antenna, IET Microwaves, Antennas & Propagation, Jun. 2008, pp. 343-347, vol. 2 No. 4.

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