RF connector element and RF connector system

1. A first RF connector element for mating with a second RF connector element, comprising:

a first terminal having a first contact region electrically connecting with a first mating terminal of the second RF connector element;

a second terminal having a second contact region electrically connecting with a second mating terminal of the second RF connector element; and

a first electrical insulator element electrically insulating the first terminal and the second terminal, the first electrical insulator element has a first contact support part and a first compensation part, the first contact support part is integrally formed of a first dielectric material and has a first relative dielectric constant, the first compensation part is integrally formed in a single piece with the first contact support part of a second dielectric material different from the first dielectric material, the second dielectric material having a second relative dielectric constant greater than the first relative dielectric constant, the first compensation part is arranged at a front end region of the first electrical insulator element and at least partly encompasses the first contact region.

2. The first RF connector element of claim 1 , wherein the first terminal is a first inner conductor and the second terminal is a first outer conductor that surrounds the first inner conductor.

3. The first RF connector element of claim 1 , wherein the first terminal is a first inner conductor and the second terminal is a second inner conductor.

4. The first RF connector element of claim 3 , further comprising a first outer conductor surrounding the first terminal and the second terminal.

5. The first RF connector element of claim 1 , wherein a ratio between the first relative dielectric constant and the second relative dielectric constant is in a range between 1/35 and 5/8.

6. The first RF connector element of claim 1 , wherein the first electrical insulator element is produced by injection molding the first contact support part from the first dielectric material and subsequently overmolding the first compensation part from the second dielectric material.

7. The first RF connector element of claim 1 , wherein the first terminal is a receptacle.

8. The first RF connector element of claim 1 , wherein:

the first terminal includes a first inner conductor and a second inner conductor for defining a twin-axial connector element; and

the first electrical insulator element electrically insulates the first inner conductor and the second inner conductor.

9. A second RF connector element for mating with a first RF connector element, comprising:

a first mating terminal having a first mating terminal contact region electrically connecting with a first terminal of the first RF connector element and a first mating terminal end region electrically connecting with a first conductor of an RF cable element;

a second mating terminal having a second mating terminal contact region electrically connecting with a second terminal of the first RF connector element and a second mating terminal end region electrically connecting with a second conductor of the RF cable element; and

a second electrical insulator element electrically insulating the first mating terminal and the second mating terminal, the second electrical insulator element has a second contact support part and a second compensation part, the second contact support part is integrally formed of a third dielectric material and has a third relative dielectric constant, the second compensation part is integrally formed with the second contact support part of a fourth dielectric material, the fourth dielectric material having a fourth relative dielectric constant greater than the third relative dielectric constant, the second compensation part is arranged at a rear end region of the second electrical insulator element and at least partly between the first mating terminal end region and the second mating terminal end region.

10. The second RF connector element of claim 9 , wherein a ratio between the third relative dielectric constant and the fourth relative dielectric constant is in a range between 1/35 and 5/8.

11. The second RF connector element of claim 9 , wherein the second electrical insulator element is fabricated by injection molding the second contact support part from the third dielectric material and subsequently overmolding the second compensation part from the fourth dielectric material.

12. The second RF connector element of claim 9 , wherein the first mating terminal is a pin.

13. The second RF connector element of claim 9 , wherein the third dielectric material is different from the fourth dielectric material.

14. An RF connector system, comprising:

a first RF connector element including:

a first terminal having a first contact region;

a second terminal having a second contact region; and

a first electrical insulator element electrically insulating the first terminal and the second terminal, the first electrical insulator element has a first contact support part and a first compensation part, the first contact support part is integrally formed of a first dielectric material and has a first relative dielectric constant, the first compensation part is integrally formed with the first contact support part of a second dielectric material, the second dielectric material having a second relative dielectric constant greater than the first relative dielectric constant, the first compensation part is arranged at a front end region of the first electrical insulator element and at least partly encompasses the first contact region; and

a second RF connector element mating with the first RF connector element and including:

a first mating terminal having a first mating terminal contact region electrically connecting with the first terminal and a first mating terminal end region electrically connecting with a first conductor of an RF cable element;

a second mating terminal having a second mating terminal contact region electrically connecting with the second terminal and a second mating terminal end region electrically connecting with a second conductor of the RF cable element; and

a second electrical insulator element electrically insulating the first mating terminal and the second mating terminal, the second electrical insulator element has a second contact support part and a second compensation part, the second contact support part is integrally formed of a third dielectric material and has a third relative dielectric constant, the second compensation part is integrally formed with the second contact support part of a fourth dielectric material, the fourth dielectric material having a fourth relative dielectric constant greater than the third relative dielectric constant, the second compensation part is arranged at a rear end region of the second electrical insulator element and at least partly between the first mating terminal end region and the second mating terminal end region.

15. The RF connector system of claim 14 , wherein the first compensation part at least partly surrounds the first mating terminal contact region when the first RF connector element and the second RF connector element are mated.

16. The RF connector system of claim 14 , wherein the second relative dielectric constant and the fourth relative dielectric constant are equal.

17. The RF connector system of claim 14 , wherein the first relative dielectric constant and the third relative dielectric constant are equal.

18. The RF connector system of claim 14 , wherein the second dielectric material is different from the first dielectric material.

19. The RF connector system of claim 18 , wherein the third dielectric material is different from the fourth dielectric material.

20. The RF connector system of claim 14 , wherein an air gap is defined between a front surface of the first compensation part and an opposing front surface of the second compensation part in a longitudinal direction of the connector system.