Communications: radio wave antennas – Antennas – With vehicle
Reexamination Certificate
2006-02-21
2006-02-21
Nguyen, Hoang V. (Department: 2821)
Communications: radio wave antennas
Antennas
With vehicle
C343S713000, C343S890000
Reexamination Certificate
active
07002525
ABSTRACT:
An antenna (10) includes a mast (12) which carries a coil (13) and a capacity hat (14). The capacity hat (14) includes a cylindrically shaped block (15) that is slidably received on the mast (12). The block includes a plurality of chordal bores (20–25) which are selectively adapted to receive conductive rods (40) therein. The configuration of the rods (40) is established by first identifying the desired frequency of operation for the antenna (10) and then selecting the size of the coil (13) and the configuration of the rods (40) which will provide approximately the desired frequency preferably using the smallest coil (13) possible to reduce losses.
REFERENCES:
patent: 2445336 (1948-07-01), Rauch
patent: 4149169 (1979-04-01), Weber
patent: 6313800 (2001-11-01), Kallina
patent: 6496152 (2002-12-01), Nilsson
Nguyen Hoang V.
Renner, Kenner, Greive, Bobak, Taylor and Weber
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