A coaxial connection is electromagnetically shielded at an interface between a surface mountable coaxial connector and a planar circuit operating in the radio frequency (RF) and microwave frequency ranges. In addition or alternatively, the coaxial connection reduces a potential impedance mismatch associated...http://www.google.fr/patents/US6992544?utm_source=gb-gplus-shareBrevet US6992544 - Shielded surface mount coaxial connector
