Monolithic Integration of PCM Switches with BST Varactors and Acoustic Filters

Microwave and mm-wave switches are key components in communication systems. They are used for signal routing and for realizing a wide range of reconfigurable microwave and mm-wave devices. Phase-Change Materials (PCMs), long employed in optical storage media and non-volatile memory applications, have recently attracted significant attention for RF and microwave applications. In particular, germanium telluride (GeTe) and related compounds are being investigated for their unique switching characteristics. This talk will highlight recent advances in PCM-based RF switches and their integration with BST varactors to create hybrid analog/digital varactors. Very recent results for PCM-based reconfigurable acoustic filters are also presented.