Communications: radio wave antennas – Antennas – Active sleeve surrounds feed line
Patent
1997-10-10
2000-05-02
Wong, Don
Communications: radio wave antennas
Antennas
Active sleeve surrounds feed line
343790, 343891, H01Q 916
Patent
active
060578041
ABSTRACT:
A coaxial dipole antenna element which has omni-directional radiation characteristics in azimuth and can be incorporated into linear antenna arrays to shape the radiation pattern in the vertical dimension is fed by coaxial conductors built into a electrically integral center support extrusion.
REFERENCES:
patent: 3899787 (1975-08-01), Czerwinski
patent: 4369449 (1983-01-01), MacDougall
patent: 4578652 (1986-03-01), Sterns
patent: 4875024 (1989-10-01), Roberts
patent: 5621420 (1997-04-01), Benson
patent: 5798736 (1998-08-01), Hall
Mobile Antenna Systems Handbook, Editors--K. Fujimoto & J.R. James, pp. 152-159.
Nguyen Hoang
Tx Rx Systems Inc.
Wong Don
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