Circuit board coaxial connector

1. An adapter ( 1 ) for a coaxial connector assembly ( 2 ) comprising:

a. a tubular outer conductor ( 3 ) and a pin-shaped inner conductor ( 4 ) both extending in a mounted position in a longitudinal direction (z) and

b. a spacer ( 5 ) which in the mounted position is arranged inside the outer conductor ( 3 ) encompassing the inner conductor ( 4 ) at least partially and by which the inner conductor ( 4 ) is positioned with respect to the outer conductor ( 3 ), wherein

c. the spacer ( 5 ) comprises a first half ( 5 a ) and a second half ( 5 b ) which are interconnectable to each other along a separation plane extending in the longitudinal direction (z), wherein

d. the first and/or the second half ( 5 a , 5 b ) comprise at least one holding means ( 6 ) to hold the inner conductor ( 4 ) in the mounted position, and wherein

e. the inner conductor ( 4 ) of at least one punched sheet metal part, and wherein

f. the inner conductor ( 4 ) having a generally rectangular cross-section, defined by a constant thickness in a y-direction and a lateral dimension in a lateral direction (x).

2. The adapter ( 1 ) according to claim 1 , wherein the lateral dimension of the inner conductor ( 4 ) varies over a length of the inner conductor ( 4 ).

3. The adapter ( 1 ) according to claim 2 , wherein the inner conductor ( 4 ) comprises, with respect to the longitudinal direction (z), a widening portion in a middle portion of the inner conductor.

4. The adapter ( 1 ) according to claim 1 , wherein in the mounted position the lateral dimension of the inner conductor ( 4 ) is arranged perpendicular with respect to the separation plane of the spacer ( 5 ).

5. The adapter ( 1 ) according to claim 1 , wherein the inner conductor ( 4 ) comprises with respect to the longitudinal direction (z) at least at one end a fork-like extension ( 7 ).

6. The adapter ( 1 ) according to claim 1 , wherein the at least one holding means ( 6 ) comprises a recess and/or a protrusion to receive the inner conductor ( 4 ).

7. The adapter ( 1 ) according to claim 1 , wherein the first half and the second half of the spacer ( 5 a , 5 b ) comprise interconnection means ( 8 ) to mechanically interconnect the first half and the second half of the spacer ( 5 a , 5 b ) to each other during assembly.

8. The adapter ( 1 ) according to claim 1 , wherein an outer shape of the spacer ( 5 ) and an inner shape of the tubular outer conductor ( 3 ) are designed such that the spacer ( 5 ) can be inserted into the outer conductor ( 3 ) in the longitudinal direction (z).

9. The adapter ( 1 ) according to claim 8 , wherein the spacer ( 5 ) and the outer conductor of the adapter ( 3 ) comprise one of a snap-fit ( 9 ) or a thereto corresponding depression ( 10 ) which interact with each other in the mounted position thereby securing the spacer ( 5 ) with respect to the outer conductor ( 3 ) in the longitudinal direction (z).

10. The adapter ( 1 ) according to claim 1 , wherein the outer conductor ( 3 ) comprises at least one punched sheet metal part.

11. The adapter ( 1 ) according to claim 1 , wherein the spacer ( 5 ) is made from a dielectric material.

12. A coaxial connector assembly ( 2 ) comprising an adapter ( 1 ) of claim 1 .