Patent ID: 8876552

Claim:
A coaxial connector comprising: a signal conductor which is to be electrically connected to an inner conductor of a coaxial cable; a ground conductor which is to be electrically connected to an outer conductor of the coaxial cable; and an insulator which holds the signal conductor and which is interposed between the signal conductor and the ground conductor, wherein the signal conductor includes: a first wall portion in which an insertion portion into which the inner conductor is to be inserted is formed; a base portion which supports the first wall portion; a second wall portion which protrudes from the base portion in substantially the same direction as the first wall portion; and a fitting portion which protrudes from the base portion in a direction opposite to the first wall portion, the first wall portion is positioned closer to a rear end side than the fitting portion in a plan view and is disposed at least at both ends of the base portion in a direction substantially orthogonal to an axial direction of the coaxial cable, the second wall portion is positioned closer to a distal end side than the fitting portion in a plan view and is disposed at least at both sides of the base portion in the direction substantially orthogonal to the axial direction of the coaxial cable, the insulator includes: a body portion in which an accommodation hole which accommodates the signal conductor is formed; and a middle cover portion which closes the accommodation hole, the middle cover portion is connected to the body portion so as to be able to perform a hinge operation about a direction substantially parallel to an axial direction of the coaxial cable, a rear end-side surface of the middle cover portion and a rear end-side surface of the first wall portion substantially overlap each other in a plan view, the accommodation hole includes: a first accommodating portion which accommodates the fitting portion; a second accommodating portion which accommodates the base portion, the first wall portion and the second wall portion; and a third accommodating portion which accommodates the middle cover portion, the accommodation hole has a stepped surface between the first accommodating portion and the second accommodating portion, the stepped surface holding a main surface of the base portion opposite to a protruding direction of the first wall portion and the second wall portion, the rear end-side surface of the first wall portion is in contact with a rear end-side inner wall surface of the second accommodating portion, a distal end-side surface of the base portion is in contact with a distal end-side inner wall surface of the second accommodating portion, and a length of the middle cover portion in an axial direction of the coaxial cable is equal to a length of the signal conductor in the axial direction.