Analog Devices, Inc. announced new releases of its popular RF design tools, which now provide support for Hittite Microwave Corp. products from ADI. The ADIsimRF™ design tool enables engineers to model RF and microwave signal chains using devices from across ADI's RF IC portfolio. ADIsimRF Version 1.9 adds 190 mixers, amplifiers, switches and attenuators, which are primarily from the Hittite portfolio.