Abstract: Aspects of coaxial to microstrip transitional housings are described. A method of forming a transitional housing includes forming a channel to a first depth into a housing block from a top surface of the housing block, forming a first annular opening to a second depth into the housing block from the top surface of the housing block at a first end of the channel, forming a second annular opening to the second depth into the housing block from the top surface of the housing block at a second end of the channel, inserting a first cylindrical plug into the first annular opening, and inserting a second cylindrical plug into the second annular opening. The second depth can be greater than the first depth in some cases.

Abstract: Aspects of coaxial to microstrip transitional housings are described. In one example, a transitional housing includes a channel comprising sidewalls formed into the housing, and an opening formed at an end of the channel. The transitional housing also includes a plug that is fitted into the opening at an end of the channel. The plug has a flat surface positioned at the end of the channel, extending between the sidewalls of the channel, and an undercut below the flat surface. The transitional housing also includes a coaxial conductor aperture that extends from outside the housing, into the housing, into the plug, through the flat surface and undercut of the plug, and into the channel. Use of the plug offers a manufacturing solution for the mechanical and electrical transition between a coaxial feedthrough to a PCB microstrip secured within the housing. The solution helps to eliminate unwanted mismatches of the transition.

Abstract: Aspects of coaxial to microstrip transitional housings are described. In one example, a transitional housing includes a channel comprising sidewalls formed into the housing, and an opening formed at an end of the channel. The transitional housing also includes a plug that is fitted into the opening at an end of the channel. The plug has a flat surface positioned at the end of the channel, extending between the sidewalls of the channel, and an undercut below the flat surface. The transitional housing also includes a coaxial conductor aperture that extends from outside the housing, into the housing, into the plug, through the flat surface and undercut of the plug, and into the channel. Use of the plug offers a manufacturing solution for the mechanical and electrical transition between a coaxial feedthrough to a PCB microstrip secured within the housing. The solution helps to eliminate unwanted mismatches of the transition.