A hybrid Dual Band Power Amplifier Module (PAM) for GSM900/GSM1800 mobile phones is described. The PAM utilizes Nortel's double-poly self-aligned Silicon NPN transistors and HP's RF MultiPak packaging technology. The PAM operates directly from the mobile phone battery over the 2 . W to 4.5V range.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.