Devices, assemblies, and methods for terminating coaxial radiofrequency ports
A coaxial terminator for terminating a coaxial equipment port includes a female connector, an outer housing, at least one support element, a center conductor, cured resin dielectric, and one or more resistive elements. The female connector is disposed within the outer housing, is supported within the outer housing by the at least one support element, and is configured to receive a male pin of the coaxial equipment port. The center conductor has a proximal portion and a distal portion and is coaxially coupled to the female connector at the proximal portion and encircled by cured resin dielectric at the distal portion. The cured resin dielectric is cured in place between the center conductor and the outer housing. The one or more resistive elements are in electrical communication at a first end with the center conductor and at a second end with the inner housing.
1 . A coaxial terminator for terminating a coaxial equipment port comprising:
a female connector, an outer housing, at least one support element, a center conductor, a cured resin dielectric, and one or more resistive elements, wherein:
the female connector is disposed within the outer housing, supported within the outer housing by the at least one support element, and configured to receive a male pin of the coaxial equipment port;
the center conductor has a proximal portion and a distal portion and is coaxially coupled to the female connector at the proximal portion and encircled by the cured resin dielectric at the distal portion;
the cured resin dielectric is cured in place between the center conductor and the outer housing; and
the one or more resistive elements are in electrical communication at a first end with the center conductor and at a second end with the outer housing, and
wherein a gap is disposed between the one or more resistive elements and the outer housing.
2 . The coaxial terminator of claim 1 , further comprising a tuning screw threadedly engaged with the outer housing, wherein advancing the tuning screw decreases the gap, thereby adjusting an inductance of the coaxial terminator.
3 . The coaxial terminator of claim 1 , further comprising an inner housing encircling the cured resin dielectric, wherein the inner housing is formed of a conductive material and is positioned coaxially within the outer housing such that the inner housing and the outer housing are in electrical communication.
4 . The coaxial terminator of claim 1 , wherein the outer housing comprises a first portion and a second portion press-fit within the first portion.
5 . The coaxial terminator of claim 1 , wherein the at least one support element comprises dielectric material.
6 . The coaxial terminator of claim 1 , wherein:
the at least one support element comprises a first support element and a second support element, and
the first support element maintains a coaxial orientation of the female connector relative to the outer housing.
7 . The coaxial terminator of claim 6 , wherein the second support element maintains a coaxial orientation of the female connector relative to the center conductor.
8 . The coaxial terminator of claim 1 , wherein the center conductor is press-fit within the female connector.
9 . The coaxial terminator of claim 1 , wherein the one or more resistive elements are made of a conductive particulate suspended within the cured resin dielectric.
10 . A coaxial terminator for terminating a coaxial equipment port comprising:
a female connector, an outer housing, at least one support element, a center conductor, a cured resin dielectric, an inner housing, and one or more resistors, wherein:
the female connector is disposed within the outer housing, supported within the outer housing by the at least one support element, and configured to receive a male pin of the coaxial equipment port;
the center conductor has a proximal portion and a distal portion and is formed integrally with the female connector at the proximal portion and encircled by the cured resin dielectric at the distal portion;
the cured resin dielectric is cured in place between the center conductor and the outer housing; and
the one or more resistors are in electrical communication at a first end with the center conductor and at a second end with the outer housing.
11 . The coaxial terminator of claim 10 , wherein the one or more resistors comprise a first resistor and a second resistor, wherein each of the first resistor and the second resistor are in electrical communication with the center conductor and the outer housing such that the first resistor and the second resistor operate in parallel.
12 . The coaxial terminator of claim 11 , wherein the center conductor defines a longitudinal axis, wherein the first resistor and the second resistor are directionally oriented radially away from the longitudinal axis.
13 . The coaxial terminator of claim 11 , further comprising a distal dielectric disposed within the inner housing, wherein the one or more resistors are in electrical communication at the first end to the center conductor and at the second end to the inner housing.
14 . The coaxial terminator of claim 11 , further comprising a spring extending between the inner housing and the outer housing.
15 . The coaxial terminator of claim 10 , wherein the one or more resistors are soldered at the first end to the center conductor and at the second end to the inner housing, wherein the cured resin dielectric is cured in place within the inner housing.
16 . The coaxial terminator of claim 10 , wherein the one or more resistors includes a chip resistor.
17 . A method of assembling a coaxial terminator comprising:
positioning an inner housing about a distal portion of a center conductor;
injecting a resin dielectric into the inner housing such that it is encircling the distal portion of the center conductor;
curing the resin dielectric about the distal portion of the center conductor;
coupling a first resistor at a first end to the center conductor and at a second end to the inner housing such that the first resistor is in electrical communication with the center conductor and the inner housing; and
enclosing the center conductor, the resin dielectric, and the first resistor within an outer housing.
18 . The method of claim 17 , further comprising:
coaxially coupling a proximal portion of the center conductor to a female connector, wherein the female connector is configured to receive a male pin of a coaxial equipment port.
19 . The method of claim 17 , further comprising:
coupling a second resistor to the center conductor and the inner housing such that the second resistor is in electrical communication with the center conductor and the inner housing.
20 . A coaxial terminator for terminating a coaxial equipment port comprising:
a female connector, an outer housing, at least one support element, a center conductor, a cured resin dielectric, one or more resistive elements, and
a tuning screw threadedly engaged with the outer housing, wherein advancing the tuning screw decreases the gap, thereby adjusting an inductance of the coaxial terminator, wherein:
the female connector is disposed within the outer housing, supported within the outer housing by the at least one support element, and configured to receive a male pin of the coaxial equipment port;
the center conductor has a proximal portion and a distal portion and is coaxially coupled to the female connector at the proximal portion and encircled by the cured resin dielectric at the distal portion;
the cured resin dielectric is cured in place between the center conductor and the outer housing; and
the one or more resistive elements are in electrical communication at a first end with the center conductor and at a second end with the outer housing.
21 . A coaxial terminator for terminating a coaxial equipment port comprising:
a female connector, an outer housing, at least one support element, a center conductor, a cured resin dielectric, and one or more resistive elements, wherein:
the female connector is disposed within the outer housing, supported within the outer housing by the at least one support element, and configured to receive a male pin of the coaxial equipment port;
the center conductor has a proximal portion and a distal portion and is coaxially coupled to the female connector at the proximal portion and encircled by the cured resin dielectric at the distal portion;
the cured resin dielectric is cured in place between the center conductor and the outer housing; and
the one or more resistive elements are in electrical communication at a first end with the center conductor and at a second end with the outer housing, and wherein the one or more resistive elements are made of a conductive particulate suspended within the cured resin dielectric.