Low profile ceramic choke
AssigneeAntcom
InventorsSon Huy Huynh, George Cheng
Life of this patent
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Abstract
A low profile ceramic choke for global positioning antenna systems having a ceramic ring with a plurality of concentric segments arranged in coaxial relationship about a center occupied by a circular antenna. The segments are spaced apart from each other and may be housed in a metal enclosure. The top surface of the ceramic ring and the enclosure are of frustro-conical configuration to provide for moisture elimination. The choke is less bulky and is smaller in size and the use of ceramic as a high dielectric constant material promotes fabrication by molding and mass production techniques.
Claims10
A low profile choke for a global positioning antenna system comprising:
- a ring of high dielectric constant material having an open center and a circular peripheral edge;
- a plurality of concentric segments forming said ring of high dielectric constant material providing a highly capacitive surface;
- a metallized undersurface backing carried on said ring;
- an antenna disposed in said open center of said ring;
- and
- an upper surface of said ring being tapered to provide moisture runoff.
A low profile choke for global positioning antenna systems comprising:
- a ring of ceramic material constituting a high idelectric constant material;
- an antenna located in the center of said ring so as to be flush with said ring;
- said ring being integrally formed with a plurality of concentric segments in fixed spaced-apart relationship;
- a bottom carried on said ring of metallized composition;
- and
- a top of said ring being of frustro-conical configuration to avoid collection of moisture.
A low profile choke for a global positioning antenna system comprising:
- a ring of high dielectric constant material having an open center and a circular peripheral edge;
- a plurality of concentric segments forming said ring of high dielectric constant material providing a highly capacitive surface;
- a metallized undersurface backing carried on said ring;
- said plurality of concentric segments are arranged in fixed spaced-apart relationship so as to define a slot or gap therebetween;
- and
- a metal formation occupying said slot or gap.
Dependencies are inferred from the claim text.