Semiconductor suppliers have been active during the last few years, trying to keep pace with existing and emerging standards and trends in wireless electronics. In the history of the microwave industry, there has never been a time when specifiers have had more choices in semiconductor processes and types, from traditional silicon to high-speed/low-noise silicon germanium (SiGe) and even new gallium-based materials such as gallium nitride (GaN). Can so many choices possibly be bad? . Complete story at -->