A 3D video conferencing station includes a video camera for capturing video signals and a depth map calculator for creating a depth map of a user of the 3D video conferencing station. Each of the multiple non electrically conductive layers is formed of a first lamina and a second lamina bonded together in a resin matrix. The epitaxy layer is disposed on the base. A filter is present for filtering the fundamental RF frequency from the parasitic diode. A dummy packet includes a flag indicating that the packet is a dummy packet.