Communications: radio wave antennas – Antennas – With coupling network or impedance in the leadin
Reexamination Certificate
2005-02-15
2005-02-15
Wimer, Michael C. (Department: 2828)
Communications: radio wave antennas
Antennas
With coupling network or impedance in the leadin
C343S7000MS
Reexamination Certificate
active
06856300
ABSTRACT:
A feed network for, and method of feeding, an array of antenna elements has multiple feed points. Two feed lines extend from the feed points, one having a longer length that the other to provide a phase difference in the two feed lines. The feed lines split into main feed lines, which in turn split into secondary feed lines that connect to the antenna elements. The connections to the elements fed from one of the feed lines are rotated with respect to the connections to the elements fed from the other to provide another phase difference between the elements. The antenna elements may be fed from the longer of the feed lines from one of the feed points and the shorter of the feed lines from an adjacent feed point, with the connections from the feed points providing for right hand and left hand circular polarized elements, respectively.
REFERENCES:
patent: 2508085 (1950-05-01), Alford
patent: 4370657 (1983-01-01), Kaloi
patent: 4686535 (1987-08-01), Lalezari
patent: 5008681 (1991-04-01), Cavallaro et al.
patent: 5166693 (1992-11-01), Nishikawa et al.
patent: 5181042 (1993-01-01), Kaise et al.
patent: 5210542 (1993-05-01), Pett et al.
patent: 5220335 (1993-06-01), Huang
patent: 5231406 (1993-07-01), Sreenivas
patent: 5245349 (1993-09-01), Harada
patent: 5382959 (1995-01-01), Pett et al.
patent: 6204823 (2001-03-01), Spano et al.
patent: 6297774 (2001-10-01), Chung
patent: 6396440 (2002-05-01), Chen
patent: 6407717 (2002-06-01), Killen et al.
patent: 6421012 (2002-07-01), Heckaman
patent: 6452550 (2002-09-01), Channabasappa et al.
patent: 6473057 (2002-10-01), Monzon
patent: 6496146 (2002-12-01), Chang et al.
patent: 20010050654 (2001-12-01), Killen et al.
patent: 20010055948 (2001-12-01), Ikeda et al.
patent: 20020067311 (2002-06-01), Wildey et al.
patent: 20020167449 (2002-11-01), Frazita et al.
patent: 20030011514 (2003-01-01), Kirchofer et al.
patent: 20030020663 (2003-01-01), Bolzer et al.
Foley & Hoag LLP
KVH Industries, Inc.
Wimer Michael C.
LandOfFree
Feed network and method for an offset stacked patch 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 Feed network and method for an offset stacked patch antenna..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Feed network and method for an offset stacked patch antenna... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3496411