High-frequency test connector device, high frequency testing system and use of same

The invention relates to a high-frequency test connector device (12; 12′) having an adapter housing including a sleeve-like ground contact section (10; 10′) axially at one end, (18) at the other end, and centrally an insulated inner contact (20), wherein the ground contact section has an electrically conducting spring member (26; 26′, 28; 42, 44; 44′, 46) for ground contact, associated such that for engaging over the sleeve section (14) of the contacting partner (16), the latter with an end face (30), to form a contact and resiliently along the movement or connecting longitudinal axis, can engage on the spring member (26) formed in a sleeve base of the ground contact section (10), or wherein, for engaging in the sleeve section (14′) of the connecting partner (16′), the spring member (26′) projects from an end face end section of the ground contact section (10′), to form a contact and resiliently along the longitudinal axis, can engage on a ground-conducting inner section (40) of the connecting partner.