A connector element (1) comprises a dielectric sleeve (12) that axially accommodates a conductor (10), which may be female, and peripherally an outer conductor (16) including a rigid zone (160) followed by a nose (170), the solid beginning of which rests on a bearing surface (121) of the dielectric sleeve,...http://www.google.es/patents/US5074809?utm_source=gb-gplus-sharePatente US5074809 - Ultraminiature high-frequency connection interface
