Communications: radio wave antennas – Antennas – Within conductive apertured wall
Reexamination Certificate
2005-05-31
2005-05-31
Le, Hoanganh (Department: 2821)
Communications: radio wave antennas
Antennas
Within conductive apertured wall
C343S895000
Reexamination Certificate
active
06900772
ABSTRACT:
An antenna having an antenna cup and a helical element mounted in the antenna cup. The antenna cup has a side wall extending from a base thereof towards an open end thereof, the side wall having a plurality of slots formed therein, a first set of the slots being arranged parallel to a longitudinal axis of the helical element and a second set of the slots being arranged perpendicular to the longitudinal axis of the helical element, the first set of slots being arranged to surround an upper portion of the helical element and the second set of slots being arranged to surround a lower portion of the helical element. The slots present a high impedance wall to surface currents and thereby significantly reduce side lobe radiation. Such an antenna is particular useful in antenna co-location applications, such as cellular telephone and Wi-Fi applications.
REFERENCES:
patent: 1219 (1839-07-01), Miller
patent: 3568206 (1971-03-01), Sisson et al.
patent: 4668956 (1987-05-01), Mahmad
patent: 5874924 (1999-02-01), Csongor et al.
patent: 6095820 (2000-08-01), Luxon et al.
patent: 6317097 (2001-11-01), Smith
Copy of International Search Report Dated Aug. 27, 2004.
Bednarek Michael D.
Le Hoang-anh
Shaw Pittman LLP
LandOfFree
Systems and methods for wireless telecommunications does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Systems and methods for wireless telecommunications, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Systems and methods for wireless telecommunications will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3403810