Manufacture rf/microwave components and subsystems.Welcome to AMC & PMI wELCOME TO American Microwave Corporation (AMC) AND Planar Monolithics Industries (PMI) Are TWO companies that perform research, development, custom design, and manufacture RF/Microwave Components and Subsystems in the DC to 40 GHz Frequency Range. For more information please feel free to contact us or click on one of the websites listed below. Copyright ? 2001-2007 American Microwave Corporation, Planar Monolithics Industries, Planar Filter Company, Planar Electronics Technology, All Rights Reserved