Connector with non-convex polygon dielectric support member

Abstract

A radiofrequency (RF) or coaxial connector includes a coaxial center conductor and a dielectric support member having a non-convex polygonal cross-section. The dielectric support member is configured to radially support and axially position the coaxial center conductor, and is further configured to expand radially and deform axially in response to an applied force. The dielectric support member provides a spring force in response to axial displacement and allows for radial expansion and axial deflection without fracture. The connector can include a vertical compression mount connector operable to be affixed to a printed circuit board.

Description

Attorney Docket: MX-25522-US-PROCONNECTOR WITH NON-CONVEX POLYGON DIELECTRIC SUPPORT MEMBERTECHNICAL FIELD

[0001] The present disclosure relates generally to coaxial radiofrequency (RF) connectors and transmission lines, and more particularly to dielectric support structures for use with coaxial connectors and transmission lines.BACKGROUND

[0002] Coaxial transmission lines and connectors are widely used in various applications, including telecommunications, broadcasting, and high-frequency electronics. These components typically consist of a center conductor surrounded by a dielectric material and an outer conductor. The dielectric material serves to support the center conductor and maintain its position relative to the outer conductor, while also affecting the electrical characteristics of the transmission line. Traditionally, materials such as polytetrafluoroethylene (PTFE) have been used as dielectric supports in coaxial connectors due to their favorable electrical properties. However, the mechanical properties of PTFE can present challenges in certain applications.BRIEF SUMMARY

[0003] According to an aspect of the present disclosure, a connector is provided. The connector includes a coaxial center conductor and a dielectric support member having a non-convex polygonal cross-section. The dielectric support member is configured to radiallyAttorney Docket: MX-25522-US-PROsupport and axially position the coaxial center conductor. The dielectric support member is configured to expand radially and deform axially in response to an applied force.

[0004] The non-convex polygonal cross-section may be star-shaped. The dielectric support member may be made of a material selected from a group consisting of: polyetherimide (PEI) and polytetrafluoroethylene (PTFE). The dielectric support member may be configured to provide a spring force in response to axial displacement. The connector may be a vertical compression mount connector configured to be affixed to a printed circuit board (PCB). The dielectric support member may comprise a plurality of projections that allow for radial expansion and axial deflection without fracture.

[0005] According to another aspect of the present disclosure, a coaxial connector is provided. The coaxial connector includes a coaxial center conductor, an outer conductor surrounding the coaxial center conductor, and a dielectric support member disposed between the coaxial center conductor and the outer conductor. The dielectric support member has a non-convex polygonal cross-section and is configured to provide radial support, axial positioning, and a spring force in response to axial displacement of the coaxial center conductor.

[0006] The non-convex polygonal cross-section may be star-shaped. The dielectric support member may be made of a material selected from a group consisting of poly etherimide and polytetrafluoroethylene. The dielectric support member may comprise a plurality of projections that allow for radial expansion and axial deflection without fracture. The coaxial transmission line may be part of a vertical compression mount connector configured to be affixed to a printed circuit board (PCB). The dielectric support member may be a firstAttorney Docket: MX-25522-US-PROdielectric support member, and the coaxial connector may further comprise a second dielectric support member being identical to the first dielectric support member, the first dielectric support member supporting the coaxial center conductor at a first position, and the second dielectric support member supporting the coaxial center conductor at a second position.

[0007] According to another aspect of the present disclosure, a coaxial connector assembly is provided. The coaxial connector assembly includes a conductor, an outer conductor surrounding the conductor, and a first dielectric support member and a second dielectric support member each disposed between the conductor and the outer conductor at different positions. The first and second dielectric support members are configured to provide radial support and axial positioning for the coaxial center conductor, and at least one of the first dielectric support member and the second dielectric support member has a non-convex polygonal cross-section.

[0008] The non-convex polygonal cross-section may be star-shaped. At least one of the first dielectric support member and the second dielectric support member may be made of a material selected from a group consisting of: polyetherimide and polytetrafluoroethylene. At least one of the first dielectric support member and the second dielectric support member may be configured to provide a spring force in response to axial displacement of the conductor. The coaxial connector assembly may be a vertical compression mount connector configured to be affixed to a printed circuit board (PCB). At least one of the first dielectric support member and the second dielectric support member may comprise a plurality of projections that allow for radial expansion and axial deflection without fracture.Attorney Docket: MX-25522-US-PRO

[0009] This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description, and is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter. The foregoing general description of the illustrative embodiments and the following detailed description thereof are merely exemplary aspects of the teachings of this disclosure and are not restrictive.BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Many aspects of the present disclosure can be better understood with reference to the following drawings. The components in the drawings are not necessarily to scale, with emphasis instead being placed upon clearly illustrating the principles of the disclosure. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.

[0011] FIG. 1 is a top, front perspective view of a coaxial connector according to various embodiments of the present disclosure.

[0012] FIG. 2 is a front view of the coaxial connector of FIG. 1 according to various embodiments of the present disclosure.

[0013] FIG. 3 is a bottom, rear perspective view of the coaxial connector of FIG. 1 according to various embodiments of the present disclosure.

[0014] FIG. 4 is another bottom, rear perspective view of the coaxial connector of FIG.1 according to various embodiments of the present disclosure.Attorney Docket: MX-25522-US-PRO

[0015] FIG. 5 is an exploded perspective view of the coaxial connector of FIG. 1 coupled to a substrate according to various embodiments of the present disclosure.

[0016] FIG. 6 is a cross-section of the coaxial connector of FIG. 1 showing a dielectric support member according to various embodiments of the present disclosure.

[0017] FIG. 7 is a perspective cross-section of the coaxial connector showing the dielectric support member according to various embodiments of the present disclosure.

[0018] FIG. 8 is a perspective view of a non-limiting embodiment of the dielectric support member according to various embodiments of the present disclosure.

[0019] FIG. 9 is a front view of the dielectric support member of FIG. 8 according to various embodiments of the present disclosure.

[0020] FIGS. 10-14 are cross-sections of various embodiments of the dielectric support member according to various embodiments of the present disclosure.

[0021] FIGS. 15-18 are perspective view of various embodiments of the dielectric support member according to various embodiments of the present disclosure.DETAILED DESCRIPTION

[0022] The present disclosure relates to connector assemblies featuring connectors (e.g., coaxial connectors) having one or more dielectric support members. The dielectric support members can have non-convex polygonal cross-sections, which axially position and support a coaxial center conductor, expand radially, deflect and deform axially, and provides spring force axially, among other benefits as will become apparent.Attorney Docket: MX-25522-US-PRO

[0023] Coaxial and like connectors are widely used in various applications requiring high-frequency signal transmission. In current designs, these connectors often feature a center conductor formed of a conductive metal, where the center conductor includes a barb or shark-fin projection. This projection has a sharp edge that engages with and forms an interference connection with a dielectric disc, typically made of polytetrafluoroethylene, a material softer than the conductive material of the projection. The interference fit between the barb and the disc helps maintain proper alignment and positioning of the center conductor within the connector assembly. The barb must be formed as part of the conductor, which can require additional processes during manufacturing.

[0024] The dielectric disc in conventional designs commonly has a circular and uniform cross-section. However, the mechanical properties of polytetrafluoroethylene have become a limiting factor in certain applications, particularly those requiring radial expansion or axial deformation. Polytetrafluoroethylene can exhibit poor compression resistance in a circular disc geometry, which may result in degraded performance or reliability issues in connectors subjected to repeated mechanical stress.

[0025] Accordingly, various embodiments are described herein for coaxial connectors and other connectors that include one or more dielectric support members with non-convex polygonal cross-sections. The dielectric support members may be configured to provide radial support and axial positioning for a coaxial center conductor while also allowing for radial expansion and axial deformation in response to applied forces. The non-convex polygonal cross-section, which may be star-shaped in some implementations, can offer improved mechanical properties compared to traditional circular cross-section dielectric discs.Attorney Docket: MX-25522-US-PRO

[0026] In some embodiments, the dielectric support members may be made from materials such as polyetherimide or polytetrafluoroethylene. These materials, combined with the non-convex polygonal cross-section, allow the dielectric support members to provide a spring force in response to axial displacement. This can be particularly beneficial in applications where connectors are subjected to repeated mechanical stress or require enhanced reliability.

[0027] The disclosed connectors can be implemented in various configurations, including vertical compression mount connectors configured to be affixed to printed circuit boards (PCBs) or other substrates. In some embodiments, multiple dielectric support members may be used within a single connector assembly, and can be positioned at different locations to provide enhanced support and positioning for a center conductor. The non-convex polygonal cross-section can include a plurality of projections that allow for radial expansion and axial deflection without fracture, improving the overall durability and performance of the connector, as will be described.

[0028] The non-convex polygonal shape of the dielectric support member may provide several advantages for coaxial connectors and transmission lines. The geometry allows for the use of stiffer dielectric materials while still enabling radial expansion without the dielectric support member fracturing or otherwise breaking. Additionally, the non-convex polygonal shape allows the dielectric support member to deflect axially when subjected to axial displacement, even when using relatively stiff or rigid polymer materials.

[0029] The axial deflection of the dielectric support member can help absorb mechanical stresses and maintain proper alignment of the center conductor. Furthermore, the polygonalAttorney Docket: MX-25522-US-PROshape of the dielectric support member can generate a normal reaction force in response to axial displacement, which can act as a spring-like mechanism to maintain consistent contact pressure and electrical performance under various operating conditions.

[0030] Turning now to the drawings, FIG. 1 is a top, front perspective view of a coaxial connector 100. FIG. 2 is a front view of the coaxial connector 100, FIG. 3 is a bottom, rear perspective view of the coaxial connector 100, and FIG. 4 is another bottom, rear perspective view of the coaxial connector 100 according to various embodiments of the present disclosure. The coaxial connector 100 as shown is a jack-type connector, although other types of connectors can be employed. Moreover, the coaxial connector 100 can be a surface-mount connector, such as a vertical surface-mount connector, as will be described.

[0031] The coaxial connector 100 generally includes a base plate 103 and a coupler 106 that extends or projects from the base plate 103. The base plate 103 can include a piece of metal or other conductive material having a substantially uniform and planar surface. The coupler 106 can include, for example, a body having a circular or ovular cross-section that extends from the base plate 103. Generally, the coupler 106 can include a threaded interface 109 for forming a threaded connection with another connector (not shown). However, while various embodiments described herein show a threaded interface 109 for forming a threaded connection with another connector, it is understood that other types of interfaces and connections can be employed. For instance, other types of connection mechanisms can be implemented in connection with the coupler 106 to form snap-fit connections, bayonet connections, press-fit connections, or friction-fit connections, among others.Attorney Docket: MX-25522-US-PRO

[0032] In some embodiments, the coupler 106 may be integrally formed with the base plate 103, which can provide structural integrity, improved electrical conductivity, and can simplify the manufacturing process. For instance, by forming the coupler 106 and base plate 103 as a single integral unit, the number of separate components in the coaxial connector 100 may be reduced, which can lead to improved reliability and reduced assembly time. The integrated coupler 106 and base plate 103 may be fabricated using various manufacturing techniques, such as machining from a single piece of conductive material or utilizing advanced metal forming processes.

[0033] The coupler 106 can include an opening 112 positioned at a front end of the coupler 106. The opening 112, also referred to as a front opening 112, can expose one or more conductive components for signal communication, such as one or more conductors. For instance, in embodiments in which a single conductive component is employed, a center conductor 115 can be positioned in the front opening 112. The center conductor 115 can be equally spaced relative to inner walls of the coupler 106. When another connector is mated to the coaxial connector 100 via the threaded interface (or other connection), a conductive terminal of the other connector conductively couples to the center conductor 115 for signal communication.

[0034] The coupler 106 can include one or more structural elements to provide a secure and functional connection to another connector. A base portion 118 can be positioned adjacent to the base plate 103. A neck portion 121 can extend from the base portion 118 having a diameter smaller than that of the base portion 118 which couples the base portion 118 to the threaded interface 109. As such, the neck portion 121 acts as a transitional element connectingAttorney Docket: MX-25522-US-PROthe base portion 118 to the threaded interface 109. The threaded interface 109 can facilitate a secure mechanical connection with a mating connector. A lip 124 can protrude from the threaded interface 109 in certain implementations. The lip 124 can act as a stop for the mating connector, preventing over-insertion of the mating connector.

[0035] The base plate 103 includes a coupler surface 127 and a mating surface 130, which can be opposing surfaces. The base portion 118, the neck portion 121, the threaded interface 109, and the lip 124 can project or otherwise extend from the coupler surface 127. In embodiments in which the coaxial connector 100 is a surface-mount connector, the mating surface 130 can contact a surface of a substrate on which the coaxial connector 100 is to be mounted, such as a printed circuit board (PCB) or other substrate. For instance, when the coaxial connector 100 is mounted on a printed circuit board, the mating surface 130 comes into direct contact with a surface of the printed circuit board.

[0036] A rear portion of the center conductor 115 can extend beyond a plane of the mating surface 130 of the base plate 103, and can be exposed in an aperture such that, when the coaxial connector 100 is mounted to a printed circuit board, the center conductor 115 contacts a trace or other conductive feature of the printed circuit board to establish signal communication. The center conductor 115 can thus be referred to as a compression mount conductor, which can couple to a printed circuit board or like substrate without deformation of any traces on the substrate. In some embodiments, a rear portion of the center conductor 115 is co-planar with the mating surface 130. However, due to orientation of the printed circuit board, only the center conductor 115 will come into contact with conductive portionsAttorney Docket: MX-25522-US-PROof the printed circuit board, whereas the mating surface 130 will only come into contact with non-conductive portions of the printed circuit board.

[0037] The coaxial connector 100 can further include a ground ring 133 positioned around the center conductor 115. Like the center conductor 115, the ground ring 133 can be formed of a conductive material. When the center conductor 115 is mounted on or otherwise coupled to a printed circuit board, the ground ring 133 can provide grounding properties to the connection, improving a quality of a signal transmitted through the center conductor 115.

[0038] In some embodiments, the base plate 103 includes one or more mounting apertures 136a, 136b (collectively “mounting apertures 136”). Screws, pins, or other coupling components can be situated through or terminate in the mounting apertures 136 to align and secure the base plate 103 to a printed circuit board or other substrate. In implementations in which screws are utilized, the screws can include hand screws or screws that require a tool to manipulate. Moreover, in some embodiments, the mounting apertures 136 can be threaded.

[0039] Referring specifically to FIG. 2, in which a front view of the coaxial connector 100 is shown, the coaxial connector 100 can include one or more dielectric support members 139. The dielectric support member 139 can have a central aperture through which the center conductor 115 is positioned. Thus, the dielectric support member 139 maintains a distance between inner walls of the opening 112 and the center conductor 115.

[0040] The dielectric support members 139 are sized and positioned to contact inner walls of a channel in which the center conductor 115 is situated. As such, the dielectric support members 139 can retain and align the center conductor 115 relative to the inner walls of a conductor channel 142 (FIG. 6) as defined by an outer conductor (e.g., a body of theAttorney Docket: MX-25522-US-PROcoaxial connector 100). The central aperture of the dielectric support members 139 may be sized to provide a snug fit around the center conductor 115 to maintain position and prevent unwanted movement or misalignment.

[0041] In some implementations, the dielectric support members 139 may have a slightly smaller inner diameter as compared to the outer diameter of the center conductor 115. This dimensional difference can create an interference fit, which may enhance the retention of the center conductor 115 relative to the dielectric support members 139.

[0042] Turning now to FIG. 5, FIG. 5 shows an exploded perspective view of the coaxial connector 100 and its associated mounting components for attachment to a printed circuit board 200 or other substrate. As previously noted, the base plate 103 extends horizontally and includes mounting apertures 136 for securing the coaxial connector 100 to the printed circuit board 200. The coaxial connector 100 is shown as a surface-mount connector in FIG.5.

[0043] Below the coaxial connector 100 and the printed circuit board 200, various mounting assembly components are shown in an exploded arrangement. Specifically, a screw 300 can be positioned through one or more holes of the printed circuit board 200 and into the mounting apertures 136 of the base plate 103 for termination. As the mounting aperture 136 can include threads, the screws 300 can form a threaded connection with the base plate 103. In some implementations, a spring washer 303 and / or a washer 306 can be threaded onto a shaft of the screw 300 above a screw head. The washer 306 can assist with distributing a load of the screw head over a larger area. The spring washer 303 may be a split or lock washer that prevents loosening of the screw 300 due to vibration, heat, or other circumstances. TheAttorney Docket: MX-25522-US-PROscrew 300 may be a machine screw or other suitable fastener for securing the coaxial connector 100 to the printed circuit board 200.

[0044] The exploded view illustrates how the screw 300, the spring washer 303, and the washer 306 stack vertically when assembled. For instance, the screw 300 may pass through the spring washer 303 and the washer 306 before engaging with corresponding mounting holes in the base plate 103 of the coaxial connector 100 (or the printed circuit board 200). This configuration may allow for secure mechanical fastening of the coaxial connector 100 to the printed circuit board 200 while providing flexibility to accommodate vibrations, thermal expansion, or mechanical stress. The printed circuit board 200 may include conductive traces and pads (not shown) that align with the electrical contacts of the coaxial connector 100, such as the center conductor 115, the ground ring 133, and potentially other conductive components.

[0045] Referring next to FIG. 6, a cross-section of the coaxial connector 100 is shown including the dielectric support member 139 according to various embodiments of the present disclosure. A conductor channel 142 extends through the coaxial connector, for instance, from a front of the coaxial connector 100 to the rear of the coaxial connector 100, creating a pathway for the center conductor 115. The conductor channel 142 can be generally uniform in some examples. The front opening 112 is in communication with the conductor channel 142, and the conductor channel 142 can have a diameter substantially less than a diameter of the front opening 112, as defined by the lip 124.

[0046] One or more dielectric support members 139 may be positioned at strategic locations within this conductor channel 142 to provide optimal support and alignment for theAttorney Docket: MX-25522-US-PROcenter conductor 115. For instance, a first dielectric support member 139a can be positioned along a central portion of the center conductor 115 (e.g., at a first position), and a second dielectric support member 139b can be positioned at a distal end of the center conductor 115 (e.g., at a second position).

[0047] Such arrangement can ensure that the center conductor 115 remains centered within the conductor channel 142, maintaining consistent spacing from inner walls and improving the electrical performance of the coaxial connector 100. While a particular implementation is shown, it is understood that a dielectric support member 139 can be positioned along at least one of the proximal end, the central portion, and the distal end of the center conductor 115, among other locations.

[0048] In some cases, multiple dielectric support members 139 may be used along the length of the conductor channel 142 to provide distributed support for the center conductor 115. This configuration may help maintain proper alignment even under various mechanical stresses (e.g., through repeated use) or thermal conditions that the coaxial connector 100 may experience during operation. The center conductor 115 is positioned along a longitudinal axis aiong of the coaxial connector 100 within the conductor channel 142, where the conductor channel 142 extends through the coupler 106 and the base plate 103.

[0049] In some implementations, the dielectric support member 139 may be positioned within a notch 145 in the internal structure of the coupler 106. For instance, the notch 145 can be formed in inner walls that define the conductor channel 142. The positioning of one or more dielectric support members 139 within the notch 145 can help secure the dielectric support member 139 in place while allowing it to perform its function of supporting andAttorney Docket: MX-25522-US-PROaligning the center conductor 115. Moreover, the notch 145 can act as an interference connection, preventing lower and upper portions of the dielectric support member 139 from becoming dislodged from the notch 145 while the lower and upper portions of the dielectric support member 139 flexes or bends when forces are imposed along the longitudinal axis along.

[0050] In various embodiments, the center conductor 115 can include one or more grooves 147, where the one or more grooves 147 can have a diameter less than a diameter of other portions of the center conductor 115. The one or more grooves 147 of the center conductor 115 can be aligned with respective dielectric support members 139. The dielectric support member 139 can be configured to receive the groove 147 (e.g., using an aperture) and retain a center portion of the dielectric support member 139 therein, which can assist the dielectric support member 139 from becoming dislodged from a notch 145 when an axial force is imposed on the dielectric support member 139. The dielectrics support member 139 can flex axially when displaced by the center conductor 115.

[0051] In some embodiments, the center conductor 115 can include a multitude of fingers 148. The fingers 148 can be positioned at the proximal end of the center conductor 115 and, as such, can be configured to receive and engage with a conductor or terminal of another connector (not shown) when it is inserted into the coaxial connector 100. Specifically, when the conductor of the other connector is positioned within the fingers 148, the fingers 148 may bias against the conductor of the other connector, creating a retention force.

[0052] The biasing of the fingers 148 can help secure the conductor of the other connector in place and maintain consistent contact between the center conductor 115 and the conductor of the other connector. The retention provided by the fingers 148 can assist with high-qualityAttorney Docket: MX-25522-US-PROsignal transmission by minimizing disconnections or intermittent contacts that could arise from vibration, thermal expansion, or other environmental factors. The number and arrangement of the fingers 148 can be varied to accommodate different designs and to optimize the retention force and contact area with the mating conductor.

[0053] Referring now to FIG. 7, a cross-sectional view of the coaxial connector 100 is shown. The center conductor 115 includes a pocket 151 between the fingers 148 and a body portion of the center conductor 115 adapted to receive a conductor of an external connector (not shown).

[0054] A first dielectric support member 139a is shown positioned in a first notch 145a to retain a central portion of the center conductor 115. Similarly, a second dielectric support member 139b is shown positioned in a second notch 145b to retain a distal portion of the center conductor 115. A callout region A shows a perspective view of the first dielectric support member 139a, although the second dielectric support member 139b may be the same as the first dielectric support member 139a in some implementations.

[0055] In some embodiments, however, the first dielectric support member 139a and the second dielectric support member 139b can have different shapes, sizes, and / or geometries. In some scenarios, a size of the center conductor 115 may impact a thickness of a dielectric support member 139 as well as the number of projections 154. Thus, various geometries, sizes, and shapes can be employed based on a size and other characteristics of the transmission line. Thus, a thickness, geometry, size, and / or number of projections 154 of the dielectric support member 139 can be selected based on a size (e.g., a width, length, impedance such as 50 ohm or 75 ohm, and / or gauge) of the center conductor 115.Attorney Docket: MX-25522-US-PRO

[0056] The dielectric support member 139 is shown in greater detail in the callout region A. This support member 139 has a non-convex polygonal shape or, more specifically, a non-convex polygonal cross-section, which in some embodiments may be star-shaped. The geometry of the dielectric support member 139 may allow for controlled radial expansion and axial deformation. To this end, when a conductor of an external connector (not shown) is inserted into or otherwise engages with the coaxial connector 100, the conductor may engage with the center conductor 115, particularly within the pocket 151 formed by the fingers 148.

[0057] As the external conductor is fully seated, an axial force can be exerted on the center conductor 115. This force may be transmitted through the center conductor 115 to the dielectric support members 139. In response to this applied force, the dielectric support members 139 may flex and deform. The non-convex polygonal shape of the dielectric support members 139 may allow for controlled radial expansion as projections 154a... 154h (collectively “projections 154”) of the star-shaped cross-section deform outward. Simultaneously, the dielectric support members 139 may compress axially, accommodating the movement of the center conductor 115 while maintaining its alignment radially within the conductor channel 142. The flexing and deformation of the dielectric support members 139 help absorb mechanical stresses and maintain consistent electrical performance of the coaxial connector 100 during mating with external connectors, all without fractures or undesirable deformations occurring within the dielectric support members 139.

[0058] In some embodiments, each of the projections 154 can include outer contact surfaces 157 that are flat or slightly contoured to match a contoured surface of the inner walls of the conductor channel 142. The dielectric support members 139 can further include aAttorney Docket: MX-25522-US-PROcentral aperture 160 in which the center conductor 115 or a groove 147 thereof can be positioned. The projections 154 can further form inner contact surfaces 163 (as shown in FIG.8) that are flat or contoured to match a contoured outer surface of the center conductor 115. The inner contact surfaces 163 thus collectively define a circular-shaped central aperture 160 that closely conforms to a diameter of the center conductor 115. While two dielectric support members 139 are shown in FIG. 7, it is understood that, in some cases, one, three, four, or more dielectric support members 139 may be used along the length of the conductor channel 142 to provide distributed support for the center conductor 115.

[0059] FIG. 8 is a perspective view and FIG. 9 is a front view of a non-limiting embodiment of the dielectric support member 139a shown in FIG. 7 according to various embodiments of the present disclosure. Referring to FIGS. 7-9 collectively, the non-convex polygonal shape of the dielectric support member 139, which may be star-shaped in some embodiments. The geometry of the dielectric support member 139 may allow for controlled radial expansion and axial deformation, improving the ability of the coaxial connector 100 to maintain proper alignment and electrical performance under various operating conditions.

[0060] The materials used for different components of the connector may be selected based on their specific properties. For example, the coupler 106 and base plate 103 may be made from a conductive metal such as brass or stainless steel, while the dielectric support member 139 may be composed of a material like poly etherimide or polytetrafluoroethylene to provide the desired structural strength and ability to flex or deform based on connector insertion or other forces.Attorney Docket: MX-25522-US-PRO

[0061] FIG. 10 illustrates a cross-sectional view of the dielectric support member 139 as shown in FIGS. 7-9. The dielectric support member 139 includes a star-shaped geometry, featuring eight projections 154 extending radially outward from a central hub. While eight projections 154 are shown, it is understood that two or more projections 154 can be employed. Each projection 154 may include an outer contact surface 157 (FIG. 9) designed to interface with the inner walls of the conductor channel 142 (FIG. 7), and an inner contact surface 163 (FIG. 9) shaped to accommodate the center conductor 115. The central aperture 160 is defined by the inner contact surfaces 163 (FIG. 9), providing a snug fit for the center conductor 115. This configuration may allow for controlled radial expansion and axial deformation, enhancing the support and alignment capabilities of the dielectric support member 139.

[0062] FIGS. 11-14 show alternative non-convex polygonal dielectric support members 139 according to various embodiments. FIG. 11 depicts an alternative embodiment of the dielectric support member 139, featuring a hub-and-spoke configuration. In this embodiment, the dielectric support member 139 may include an inner ring surrounding the central aperture 160, an outer ring designed to contact the conductor channel 142, and a plurality of spokes or members connecting the inner and outer rings. The configuration may also allow for radial expansion and axial deformation while maintaining support for the center conductor 115. Areas between the spokes may reduce the overall mass of the dielectric support member 139, permitting flexing while also being resilient.

[0063] FIG. 12 shows another alternative embodiment of the dielectric support member 139, comprising multiple triangular-shaped bodies coupled together via cross-members. This configuration may create a series of void spaces within the dielectric support member 139,Attorney Docket: MX-25522-US-PROwhich enabled deformation upon stress. The triangular bodies may provide structural integrity, while the cross-members may allow for controlled flexing and expansion.

[0064] FIG. 13 shows an X-shaped cross-section for the dielectric support member 139, which may include an inner ring, an outer ring, or both. The X-shaped structure may provide four main contact points with both the center conductor 115 and the conductor channel 142, while allowing for significant void space.

[0065] Similarly, FIG. 14 illustrates a Y-shaped cross-section for the dielectric support member 139, which may also include an inner ring, an outer ring, or both. This configuration provides three main contact points, which may be sufficient for many applications while further reducing the material used in the dielectric support member 139. The Y-shape may allow for even greater radial expansion and axial deformation compared to the X-shaped embodiment shown in FIG. 13.

[0066] FIGS. 15-18 include perspective view of other embodiments of the dielectric support member 139. The dielectric support members 139 of FIGS. 15-18 include a central aperture 160 in which a center conductor 115 is positioned. Each of the projections 154 can include outer contact surfaces 157 that are flat or slightly contoured to match a contoured surface of the inner walls of the conductor channel 142. Moreover, the projections 154 can further form inner contact surfaces 163 that are flat or contoured to match a contoured outer surface of the center conductor 115. Specifically, FIG. 15 shows a dielectric support member 139 having a T-shaped body including four projections. FIG. 16 includes a triangular-shaped body, where the sides deform inwards towards the central aperture 160. FIG. 17 includes aAttorney Docket: MX-25522-US-PROstar-shaped body featuring five projections 154. FIG. 18 includes a star-shaped body featuring six projections 154.

[0067] The coaxial connector 100 may be utilized in various applications and industries where high-frequency signal transmission is beneficial or required. In some cases, the coaxial connector 100 may be employed in telecommunications infrastructure, such as in cellular base stations or satellite communication systems. In other cases, the coaxial connector 100 may be utilized in test and measurement equipment. The coaxial connector 100 described herein, having one or more non-convex polygonal dielectric support members 139, may allow for reliable connections in scenarios involving repeated mating and unmating cycles.

[0068] While various embodiments described above describe a coaxial connector 100 having one or more dielectric support members 139, the principles and structures disclosed may be applicable to various other types of connectors. For instance, the dielectric support member 139 with its non-convex polygonal cross-section may be utilized in different connector configurations where radial support, axial positioning, and controlled deformation are desirable. In some embodiments, the dielectric support member 139 can be incorporated into multi-pin connectors, where the dielectric support member 139 can provide support and alignment for individual pins or groups of pins. In such applications, the dielectric support member 139 may be modified to accommodate multiple conductors or terminals while maintaining an ability to expand radially and deform axially.

[0069] The dielectric support member 139 can also be implemented in fiber optic connectors for precise alignment and protection of delicate optical fibers. The controlled deformation properties of the non-convex polygonal geometry of the dielectric supportAttorney Docket: MX-25522-US-PROmember 139 may help absorb mechanical stresses and maintain optical alignment. Accordingly, the dielectric support member 139 may be incorporated into board-to-board connectors or cable-to-board connectors, where its spring-like properties and ability to accommodate slight misalignments may improve connection reliability.

[0070] The dielectric support member 139 may be fabricated or otherwise formed using various manufacturing techniques, including three-dimensional printing, injection molding, and so forth. In some implementations, three-dimensional printing processes, such as stereolithography (SLA) or selective laser sintering (SLS), may be employed to create the dielectric support member 139 with the geometries and features described above. Injection molding techniques may be utilized for high-volume production of the dielectric support member 139, reducing manufacturing costs and ensuring consistent quality.

[0071] The dielectric support member 139 may be formed of poly etherimide (PEI), polytetrafluoroethylene (PTFE), or a combination thereof such that the dielectric support member 139 has favorable dielectric properties and mechanical characteristics. In other embodiments, high-performance thermoplastics, such as polyetheretherketone (PEEK), polyetherimide (PEI), polytetrafluoroethylene (PTFE), polyamide-imide (PAI), acrylonitrile butadiene styrene (ACB), acrylic, nylon, phenolic, polycarbonate, polyethylene (PE), polyvinyl chloride (PVC), polyphenylensulfid (PPS) or liquid crystal polymers (LCP), Rexolite® polymer, fluoropolymers (e.g., Fluoroly® polymers), or any combination thereof, may be employed. In some embodiments, composite materials combining polymers with reinforcing fibers or particles may be used to tailor the mechanical and electrical properties of the dielectric support member 139 to specific performance requirements.Attorney Docket: MX-25522-US-PRO

[0072] The features, structures, or characteristics described above may be combined in one or more embodiments in any suitable manner, and the features discussed in the various embodiments may be interchangeable, if possible. In the following description, numerous specific details are provided in order to fully understand the embodiments of the present disclosure. However, a person skilled in the art will appreciate that the technical solution of the present disclosure may be practiced without one or more of the specific details, or other methods, components, materials, and the like may be employed. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the present disclosure.

[0073] Although the relative terms such as “on,” “below,” “upper,” and “lower” are used in the specification to describe the relative relationship of one component to another component, these terms are used in this specification for convenience only, for example, as a direction in an example shown in the drawings. It should be understood that if the device is turned upside down, the “upper” component described above will become a “lower” component. When a structure is “on” another structure, it is possible that the structure is integrally formed on another structure, or that the structure is “directly” disposed on another structure, or that the structure is “indirectly” disposed on the other structure through other structures.

[0074] In this specification, the terms such as “a,” “an,” “the,” and “said” are used to indicate the presence of one or more elements and components. The terms “comprise,” “include,” “have,” “contain,” and their variants are used to be open ended, and are meant toAttorney Docket: MX-25522-US-PROinclude additional elements, components, etc., in addition to the listed elements, components, etc. unless otherwise specified in the appended claims.

[0075] The terms “first,” “second,” etc. are used only as labels, rather than a limitation for a number of the objects. It is understood that if multiple components are shown, the components may be referred to as a “first” component, a “second” component, and so forth, to the extent applicable.

[0076] The terms “about” and “substantially,” unless otherwise defined herein to be associated with a particular range, percentage, or related metric of deviation, account for at least some manufacturing tolerances between a theoretical design and manufactured product or assembly, such as the geometric dimensioning and tolerancing criteria described in the American Society of Mechanical Engineers (ASME®) Y14.5 and the related International Organization for Standardization (ISO®) standards. Such manufacturing tolerances are still contemplated, as one of ordinary skill in the art would appreciate, although “about,” “substantially,” or related terms are not expressly referenced, even in connection with the use of theoretical terms, such as the geometric “perpendicular,” “orthogonal,” “vertex,” “collinear,” “coplanar,” and other terms.

[0077] The above-described embodiments of the present disclosure are merely possible examples of implementations set forth for a clear understanding of the principles of the disclosure. Many variations and modifications may be made to the above-described embodiment(s) without departing substantially from the spirit and principles of the disclosure. All such modifications and variations are intended to be included herein within the scope of this disclosure and protected by the following claims.

Claims

Attorney Docket: MX-25522-US-PROCLAIMSTherefore, the following is claimed:

1. A connector, comprising:a coaxial center conductor; anda dielectric support member having a non-convex polygonal cross-section, wherein the dielectric support member is configured to radially support and axially position the coaxial center conductor, and wherein the dielectric support member is configured to expand radially and deform axially in response to an applied force.

2. The connector of claim 1 , wherein the non-convex polygonal cross-section is star-shaped.

3. The connector of claim 1, wherein the dielectric support member is made of a material selected from a group consisting of: polyetherimide (PEI) and polytetrafluoroethylene (PTFE).

4. The connector of claim 1, wherein the dielectric support member is configured to provide a spring force in response to axial displacement.Attorney Docket: MX-25522-US-PRO5. The connector of claim 1, wherein the dielectric support member is positioned within a notch in a housing of the connector, at least a portion of the dielectric support member being disposed in the notch.

6. The connector of claim 1, wherein the connector is a vertical compression mount connector configured to be affixed to a printed circuit board (PCB).

7. The connector of claim 1 , wherein the dielectric support member comprises a plurality of projections that allow for radial expansion and axial deflection without fracture.

8. A coaxial connector, comprising:a coaxial center conductor;an outer conductor surrounding the coaxial center conductor; and a dielectric support member disposed between the coaxial center conductor and the outer conductor, the dielectric support member having a non-convex polygonal crosssection and configured to provide radial support, axial positioning, and a spring force in response to axial displacement of the coaxial center conductor.

9. The coaxial connector of claim 8, wherein the non-convex polygonal crosssection is star-shaped.Attorney Docket: MX-25522-US-PRO10. The coaxial connector of claim 8, wherein the dielectric support member is made of a material selected from a group consisting of polyetherimide (PEI) and polytetrafluoroethylene (PTFE).

11. The coaxial connector of claim 8, wherein the dielectric support member comprises a plurality of projections that allow for radial expansion and axial deflection without fracture.

12. The coaxial connector of claim 8, wherein the coaxial connector is a vertical compression mount connector configured to be affixed to a printed circuit board (PCB).

13. The coaxial connector of claim 8, wherein the dielectric support member is a first dielectric support member, and the coaxial connector further comprises a second dielectric support member being identical to the first dielectric support member, the first dielectric support member supporting the coaxial center conductor at a first position, and the second dielectric support member supporting the coaxial center conductor at a second position.Attorney Docket: MX-25522-US-PRO14. A coaxial connector assembly, comprising:a conductor;an outer conductor surrounding the conductor; anda first dielectric support member and a second dielectric support member each disposed between the conductor and the outer conductor at different positions;wherein the first and second dielectric support members are configured to provide radial support and axial positioning for the coaxial center conductor, and wherein at least one of the first dielectric support member and the second dielectric support member has a non-convex polygonal cross-section.

15. The coaxial connector assembly of claim 14, wherein the non-convex polygonal cross-section is star-shaped.

16. The coaxial connector assembly of claim 14, wherein at least one of the first dielectric support member and the second dielectric support member is made of a material selected from a group consisting of: polyetherimide (PEI) and polytetrafluoroethylene (PTFE).

17. The coaxial connector assembly of claim 14, wherein at least one of the first dielectric support member and the second dielectric support member is configured to provide a spring force in response to axial displacement of the conductor.Attorney Docket: MX-25522-US-PRO18. The coaxial connector assembly of claim 14, wherein the first dielectric support member is positioned within a first notch in the outer conductor, the second dielectric support member is positioned within a second notch in the outer conductor, and at least a portion of the first dielectric support member and the second dielectric supported being disposed in the first notch and the second notch, respectively.

19. The coaxial connector assembly of claim 14, wherein the coaxial connector assembly is a vertical compression mount connector configured to be affixed to a printed circuit board (PCB).

20. The coaxial connector assembly of claim 14, wherein at least one of the first dielectric support member and the second dielectric support member comprises a plurality of projections that allow for radial expansion and axial deflection without fracture.

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