Millimeter wave coaxial connector and its insulating support body

Abstract

The invention relates to a millimeter-wave coaxial connector and an insulation support body thereof. The millimeter-wave coaxial connector comprises inner and outer conductors, and the insulation support body arranged between the inner and outer conductors. The insulation support body comprises a body whose axis is extended along forward and backward directions. A central section of the body is provided with a passing and installation hole, wherein the inner conductor passes through and is installed in the passing and installation hole. A periphery ring of the passing and installation hole on at least one end surface of the body is provided with an impedance compensation groove. A cross section size of the impedance compensation groove is gradually decreased from a notch to a groove bottom. In the invention, the cross section size of the impedance compensation groove is gradually decreased from the notch to the groove bottom. Compared to a compensation structure with fixed impedance provided by a traditional flat ring groove, a V-shaped ring groove provides a smooth transition type compensation structure whose impedance is gradually decreased. Therefore, a better impedance compensation effect can be acquired.

Description

technical field [0001] The invention relates to a millimeter wave coaxial connector and an insulating support body thereof in the field of millimeter wave signal transmission. Background technique [0002] Existing millimeter-wave coaxial connectors include an inner conductor, an outer conductor, and an insulating support disposed between the inner and outer conductors. The specific structure of the insulating support is as follows: Figure 1~2 Shown: It includes a body 2 made of insulating material. The center of the body is provided with an inner conductor piercing hole 4 for the corresponding inner conductor to wear. In order to reduce the dielectric constant between the inner and outer conductors, on the body A plurality of peripheral holes 3 arranged at intervals along the circumferential direction of the main body are provided on the periphery of the inner conductor penetration hole. At the same time, an impedance compensation groove 1 for impedance matching compensat...

AI Technical Summary

Problems solved by technology

The problem with the existing insulating support structure is that as the frequency of millimeter-wave signals used in modern equipment is getting higher and higher, millimeter-wave coaxial connectors are inevitably becoming more and more miniaturized. Millimeter-wave coaxial connectors, the most frequently used type 1.0 connector, the frequency can reach 110GHz, but the structure is very small, the inner diameter of the outer conductor is only 1.0mm, such a small size, it must be its insulation support It is very difficult to design and manufacture the body

[0003] When the existing insulating support is faced with such a small size, the processing difficulty is doubled. First, the existing peripheral hole structure for reducing the dielectric constant is too small and difficult to process. Even if it is barely processed, the hole wall will be damaged. Too thin, parts deformed

Secondly, because the peripheral hole is too small, there is little material removed for the part as a whole, and the dielectric constant of the insulating support between the inner and outer conductors cannot be effectively reduced.

Thirdly, the fixed impedance compensation structure of the flat-bottomed ring groove can only provide a fixed compensation value, and it is becoming more and more difficult to bring better compensation effects when the frequency of millimeter-wave coaxial connectors is getting higher and higher, thus affecting millimeter-wave Overall RF Performance of Coaxial Connectors

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