Lengthened radio frequency coaxial connector

Abstract

The invention discloses a lengthened radio frequency coaxial connector, which belongs to a radio frequency coaxial connector. The lengthened radio frequency coaxial connector is provided with a connecting sleeve, an inner conductor, an insulating sleeve and a seal ring, and is characterized in that: the connecting sleeve consists of a connecting head sleeve, a connecting middle sleeve and a connecting tail sleeve, wherein the outer diameter of the connecting middle sleeve is in interference fit with the cavity of the connecting head sleeve; the cavity of the connecting tail sleeve is in interference fit with the outer diameter of the connecting middle sleeve; the inner conductor consists of a contact pin head and a pore-shaped contact pin tail, wherein the tube wall on the neck part of the contact pin tail is designed with three tail pieces which are curved inwards; the insulating sleeve consists of an insulating head sleeve, an insulating middle sleeve, an insulating inner sleeve andan insulating tail sleeve, wherein the insulating head sleeve is sleeved at the front end of the contact pin head; the insulating middle sleeve is sleeved on the middle part; the insulating inner sleeve is sleeved at the contact pin tail; the back end of the insulating tail sleeve is sleeved at the joint between the tail end of the contact pin head and the contact pin tail and the front end of the insulating tail sleeve is sleeved on the periphery of the insulating inner sleeve; the seal ring comprises an outer seal ring and an inner seal ring, wherein the outer seal ring is sleeved on the periphery of the connecting head sleeve; and the inner seal ring is connected between the cavity at the front end of the connecting tail sleeve and the front end of the insulating tail sleeve. Through trial, the product pass percentage is improved to 95 percent from 75 percent; above 15 percent of materials is saved; and return loss is reduced to -22db from -15db.

Description

technical field [0001] The invention relates to a radio frequency coaxial connector, in particular to an elongated radio frequency coaxial connector used for connection between a high frequency head of a satellite antenna and signals received by the antenna. Background technique [0002] The existing similar products are integral cylindrical connecting sleeves with a length of 50 mm and an outer diameter of 9 mm, with connecting threads at both ends; a length of 55 mm, one end of the connecting tuner is a pin head, and the other end is 2 tail pieces The inner conductor is composed of the pin tails of the duck mouth structure; the insulating sleeve is sleeved on the inner conductor, embedded in the connecting sleeve, and the sealing ring is sleeved on the threaded joints at both ends of the connecting sleeve. Since the shape of the existing elongated product connecting sleeve is a slender overall cylinder, and the inner conductor is also a slender combined needle body, it wil...

AI Technical Summary

Problems solved by technology

Since the shape of the existing elongated product connecting sleeve is a slender overall cylinder, and the inner conductor is also a slender combined needle body, it will inevitably cause the coaxiality between the parts of the finished product to be difficult to meet the requirements, so The pass rate of the product is only 75%, which not only affects the economic benefits, but also wastes non-ferrous metal materials that are scarce in resources and whose prices tend to rise; secondly, the 2 tail pieces of the inner conductor pin tail are combined with the duck mouth structure, which is compatible with the inserted antenna The electrical connection between the pins of the receiving signal cable is realized through two points, which will inevitably cause a large return loss at the connection, and the return loss RL of 0.8-2.15GHZ is as high as -15db

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