COAXIAL CONNECTOR AND ASSEMBLY METHOD OF THE SAME

To reduce a degree of an increase in level of a reflection wave caused by engagement backlash between a coaxial connector and a mating connector.SOLUTION: A coaxial terminal 31 of a coaxial connector includes an internal terminal 32, an external terminal 41, and an insulation member 55. In the external terminal 41, an intermediate part located between a contact part 42 and a connection part 43 has an intermediate front part 45 and an intermediate rear part 46. An inner diameter of the intermediate front part 45 is larger than an inner diameter of the intermediate rear part 46. In a coaxial connector 1, the inner diameter of the intermediate front part 45 and the inner diameter of the intermediate rear part 46 are respectively set so that characteristic impedance at a position of the intermediate front part 45 is higher than characteristic impedance at a position of the intermediate rear part 46.SELECTED DRAWING: Figure 6 【課題】同軸コネクタと相手コネクタとの間の嵌合がたによって生じる反射波のレベルの増加の程度を小さくする。【解決手段】同軸コネクタの同軸端子３１は、内部端子３２、外部端子４１および絶縁部材５５を備え、外部端子４１において、接触部４２と接続部４３との中間に位置する中間部は中間前部４５および中間後部４６を備え、中間前部４５の内径は中間後部４６の内径よりも大きく、中間前部４５の内径および中間後部４６の内径は、同軸コネクタ１において、中間前部４５の位置における特性インピーダンスが中間後部４６の位置における特性インピーダンスよりも高くなるようにそれぞれ設定されている。【選択図】図６