Keywords: Circuit diagram.jpg MMIC Transceiver Design for an Automotive Collision Avoidance System ACAS http //www nhtsa dot gov/people/injury/research/pub/ACAS/Ch3-3 htm 1998-05-10 US Department of Transportation - National Highway Traffic Safety Administration - ACAS Program PD-USGov The image was copied from Englsih Wikipedia http //en wikipedia org/wiki/Image Circuit_diagram jpg but it comes originally from a US Government website http //www nhtsa dot gov/people/injury/research/pub/ACAS/Ch3-3 htm so it is public domain en Work of the United States Government PD-USGov Radio circuits Electronic sensors |