RF coaxial angle-connector part and method for its production

• US 6,132,244 A
• Filed: 10/22/1998
• Issued: 10/17/2000
• Est. Priority Date: 10/22/1997
• Status: Expired due to Fees

• Current Assignee: Tyco Electronics Logistics AG (TE Connectivity Limited)
• Original Assignee: Siemens AG
• Inventors: Leeman, Reginald, Acke, Edgard, Houtteman, Bernard, Schoubben, Roger
• Primary Examiner(s): Bradley, Paula
• Assistant Examiner(s): Leon, Edwin A.
• Application Number:
  US09/176,816
• Time in Patent Office: 726 Days
• Field of Search: 439/63, 439/578, 439/579, 439/580, 439/581, 439/351, 439/358, 439/329, 439/86, 439/541.5, 439/540.1, 439/931
• US Class Current: 439/541.5
• CPC Class Codes: H01R 12/57 surface mounting terminals
• CPC Class Codes: H01R 13/6585 Shielding material individually surrounding or interposed between mutually spaced contacts
• CPC Class Codes: H01R 2103/00 Two poles
• CPC Class Codes: H01R 24/50 mounted on a PCB [Printed Circuit Board]
• CPC Class Codes: Y10S 439/931 Conductive coating

Abstract

A RF coaxial angle-connector part embodied as a coaxial connector-part module having coaxial connector parts disposed at the front in a housing. The metallized-plastic housing has, on a bottom at an edge, a multiplicity of contact bearing feet with bearing surfaces which constitute SMD connections. The contact bearing feet are used both for mounting the housing on a base as well as for conductively connecting the SMD connections to connections that are allocated to the latter on the base. The conductive connections between coaxial inner conductors of the coaxial connector parts and the SMD connections includes insulated metallic inner-conductor connection pieces that have in each case two sections which are disposed essentially perpendicular to one another. The two sections include an inner-conductor plug part and an SMD inner-conductor foot. The inner-conductor plug parts are oriented in each case perpendicular to the coaxial connector parts, and have, at their free end, a press-fit contact head for a highly conductive connection to associated coaxial inner conductors of the coaxial connector parts.

Claims

1. In combination with a base having connectors, a RF coaxial angle-connector part, comprising:

a coaxial connector-part module to be mounted on the base and including a plastic housing having recesses formed therein, a front wall and a bottom with an edge, said housing also having metallized surface areas;

coaxial connector parts disposed in said front wall of said housing, said coaxial connector parts having coaxial outer conductors and straight rod shaped inner conductors with ends disposed in an insulated fashion in said coaxial outer conductors;

a multiplicity of contact bearing feet having bearing surfaces constituting SMD connections with metallized surfaces disposed at said edge of said bottom of said housing for mounting said housing on the base and conductively connecting said SMD connections to the connectors of the base;

said metallized surface areas of said housing divided up into metallized regions at least between said metallized surfaces of said SMD connections and a remainder of said metallized surface areas of said housing for electrically isolating said metallized regions from one another for DC isolation;

metallic inner-conductor connection pieces disposed in an insulated fashion in said recesses of said housing perpendicular to said coaxial connector parts, said inner-conductor connection pieces each having an inner-conductor plug part and an SMD inner-conductor foot disposed substantially perpendicular to said inner-conductor plug part, said SMD inner-conductor foot extending into a respective bearing surface of said contact bearing feet, said inner-conductor plug part having a press-fit contact head receiving one of said ends of a respective coaxial inner conductor and forming a highly conductive connection with said respective coaxial inner conductor; and

said inner-conductor connection pieces, said coaxial connector parts and said contact bearing feet forming coaxial connection paths dimensioned to have an at least substantially constant characteristic impedance.

2. The RF coaxial angle-connector part according to claim 1, wherein the base is a printed circuit board.

3. The RF coaxial angle-connector part according to claim 1, wherein said coaxial outer conductors are one of inserted and screwed into said housing and integrated with said housing.

4. The RF coaxial angle-connector part according to claim 1, wherein:

said press fit contact head of said inner-conductor plug part has a terminal slot formed therein;

said coaxial connector-part module has a bottom part locked to said housing, said bottom part having a dielectric mounting plate with a top for supporting said inner-conductor connection pieces, said top of said dielectric mounting plate having dielectric support pillars each with said inner-conductor plug part embedded therein up to said terminal slot of said press-fit contact head;

said top of said dielectric mounting plate additionally having at least one plug part having a locking element;

said recesses of said housing are formed in said bottom of said housing and include a central cutout, pillar holding apertures and a further holding aperture with a mating lock aperture, said bottom part having said dielectric mounting plate received in said central cutout, said pillar holding apertures receiving said dielectric support pillars having said inner-conductor plug parts, said further holding aperture with said mating lock aperture receiving and locking with said locking element of said at least one plug part; and

only after said bottom part has been locked to said housing can said coaxial inner conductors of said coaxial connector parts be inserted into and connected in said highly conductive manner to said press-fit contact heads of said inner-conductor plug parts.

5. The RF coaxial angle-connector part according to claim 4, wherein:

said pillar holding apertures and said further aperture have a rectangular cross-section;

said dielectric support pillars of said bottom part have longitudinal grooves formed therein for matching said characteristic impedance, said dielectric support pillars having a cross section matching said rectangular cross-section of said pillar holding apertures disposed in said bottom of said housing; and

said dielectric support pillars having funnel shaped holes formed therein, said holes exposing said terminal slot of said press-fit contact head of said inner-conductor plug part and serving to center said ends of said coaxial inner conductors to be pressed into said press-fit contact heads.

6. The RF coaxial angle-connector part according to claim 4, wherein said housing has mutually parallel side walls and a rear wall, said contact bearing feet disposed on an exterior of said housing at said bottom on said mutually parallel side walls and said rear wall, and projecting slightly beyond said bottom part inserted into said housing.

7. The RF coaxial angle-connector part according to claim 6, wherein said contact bearing feet are short outer-wall attachments in a manner of support teeth, and together forming a comb-like structure on said mutually parallel side walls and said rear wall of said housing.

8. Th RF coaxial angle-connector part according to claim 1, wherein said remainder of said metallized surface areas of said housing are divided into further metallized regions between said coaxial outer conductors for electrically isolating said further metallized regions from each other.

9. The RF coaxial angle-connector part according to claim 1, wherein said metallized regions of said metallized surface areas of said housing are isolated from one another by partial removal of lines in said metallized surface areas of said housing.

10. The RF coaxial angle-connector part according to claim 9, wherein said lines are removed by laser processing.

11. The RF coaxial angle-connector part according to claim 1,

wherein said coaxial connector parts are disposed in a row/column pattern on said housing;

including a mounting plate;

wherein said housing has at least one plate-shaped elevated area constituting a stop and having a hole formed therein disposed in said front wall in a center region between said coaxial connector parts for receiving a fixing screw to additionally mount said housing to said mounting plate; and

including a contact plate having contact prongs at an edge slightly bent away forwards in a direction towards said mounting plate and disposed on said front wall of said housing for forming a highly conductive contact between said mounting plate and said metallized surface areas of said housing.

12. The RF coaxial angle-connector part according to claim 1, wherein said coaxial outer conductors are disposed on said front wall of said housing and are an integral component of said housing.

13. The RF coaxial angle-connector part according to claim 1, wherein said housing has outer conductor recesses formed therein and said coaxial outer conductors are metallic sleeves disposed on said front wall in said outer conductor recesses, said coaxial outer conductors are one of screwed, pressed and inserted into said outer conductor recesses.

14. The RF coaxial angle-connector part according to claims 1, including dielectric sleeves disposed in said coaxial outer conductors receiving and housing said coaxial inner conductors.

15. The RF coaxial angle-connector part according to claim 1, wherein the base has centering holes formed therein, and said housing has centering devices disposed on said bottom for centering said housing on the base.

16. The RF coaxial angle-connector part according to claim 15, wherein said centering devices are centering pins.

17. The RF coaxial angle-connector part according to claim 1, wherein said metallized surface areas have a layer thickness of metallization at least equal to a penetration depth of electromagnetic waves to be transmitted via said coaxial connector-part module.

18. The RF coaxial angle-connector part according to claim 1, wherein said housing has exterior surfaces with non-metallized surface sub-areas.

19. The RF coaxial angle-connector part according to claim 1, wherein said bearing surfaces constituting said SMD connections have a planarity less than 0.1 mm.