Support structure for coaxial transmission line using spaced dielectric balls
AssigneeWeinschel Engineering Co., Inc.
InventorEarl M. Jones, III
Life of this patent
Estimating the term…
Abstract
A support structure for a coaxial transmission line includes a plurality of groups of dielectric balls compressibly mounted between the inner and outer conductors of the coaxial transmission line, the balls being "locked" into position via recesses located in the outer face of the inner conductor with holes centrally located in the balls and aligned parallel with the longitudinal axis of the transmission line sewing to compression relieve the balls and improve the VSWR of the transmission line, and with seventy-degree V-grooves being located on either side of the recesses in longitudinal alignment with the coaxial transmission line, for further improving the VSWR by adding inductance to compensate for the capacitance added by the presence of the balls.
Claims22
A support structure for a coaxial transmission line comprises:
- an elongated rigid outer conductor having a substantially hollow and cylindrical interior cavity portion about a longitudinal axis, said outer conductor having an inner surface;
- an elongated substantially rigid cylindrical inner conductor centrally located within said outer conductor, having a longitudinal axis substantially parallel to said longitudinal axis of said outer conductor, said inner conductor having an outer surface;
- a plurality of dielectric balls compressibly mounted between the inner and outer surfaces of said outer and inner conductors, respectively, said balls being evenly located about the circumference of said inner conductor, thereby providing support members for centrally retaining said inner conductor within said outer conductor;
- retaining means for holding said dielectric balls in position, said retaining means including recesses in the outer surface of said inner conductor for receiving a portion of said balls;
- and
- standing wave compensation means for compensating for wave reflections caused by said balls, including;
- holes bored through said balls, said balls being positioned for aligning the longitudinal axes of their holes with the longitudinal axis of said inner conductor,
- first V-grooves located contiguous to and on either side of each one of said recesses of said inner conductor, and being aligned with the longitudinal axis of said inner conductor, said V-grooves being dimensioned for maximizing the reduction of reflected waves between said inner and outer conductors.
A support structure for an elongated coaxial transmission line comprises:
- an elongated substantially rigid inner conductor located within a cavity of an outer conductor, said inner conductor having an outer surface and a longitudinal axis parallel with said elongated coaxial line;
- and
- a plurality of dielectric balls compressibly mounted between said inner and outer conductors, for both supporting and centrally retaining said inner conductor within said cavity;
- wherein each one of said dielectric balls is longitudinally displaced along the length of said inner conductor from other ones of said dielectric balls.
A support structure for an elongated coaxial transmission line comprising:
- elongated substantially rigid inner conductor located within a cavity of an outer conductor, said inner conductor having an outer surface and a longitudinal axis extending parallel with said elongated coaxial line, and
- a plurality of dielectric balls compressibly mounted between said inner and outer conductors, for both supporting and centrally-retaining said inner conductor within said cavity,
- wherein a compensation hole is bored through each one of said dielectric balls, and the longitudinal axis of the holes are aligned with the longitudinal axis of said inner conductor, thereby reducing the compressive fatigue upon said balls and minimizing the standing wave ratio of said coaxial transmission line.
A support structure for an elongated coaxial transmission line comprising:
- elongated substantially rigid inner conductor located within a cavity of an outer conductor, said inner conductor having an outer surface and a longitudinal axis extending parallel with said elongated coaxial line, and
- a plurality of dielectric balls compressibly mounted between said inner and outer conductors, for both supporting and centrally-retaining said inner conductor within said cavity,
- wherein said dielectric balls are locked in position about said inner conductor via recesses fabricated into the outer surface of said inner conductor at predetermined locations,
- further including compensation means contiguous with said recesses for minimizing the standing wave ratio of said coaxial transmission line by reducing reflected waves caused by the presence of said dielectric balls.
Dependencies are inferred from the claim text.