An overview on RF-front-end architectures and technologies for future reconfigurable mobile communication systems (4G-systems) is given. Favourable standard combinations are WCDMA and WLAN. With respect to reconfigurability three different system approaches are introduced and compared: switchable systems, systems with reusable components and systems with multifunctional components. Furthermore, RF frontend key components like low noise amplifiers, mixers, voltage controlled oscillators and baseband variable gain amplifiers are treated, particularly with regard to reconfigurable systems Index Terms -Reconfigurable communication systems, mobile receiver, WCDMA, UMTS, WLAN, RF-CMOS circuits
UMTS/WLAN RF Receiver Studies for Reconfigurable Mobile Terminals
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