A coaxial microwave connector, intended to link two printed circuit boards (PCBs) to one another, of central axis (X) comprising: two connection elements each with a central contact and a ground contact, the ground and central contacts of the second element being free to be displaced, along the axis (X), relative to those of the first element, between a configuration of disconnection, and a configuration of connection in which the elements are intended to establish an electrical ground and central contact between the two PCBs; and at least one flexible electrically insulating washer, which both allows the coaxial mechanical holding between each central contact inside the ground contact of the first or of the second connection element, and makes it possible to establish a mechanical pressure between the end of the central contact and one of the two PCBs.