Abstract:7.1 Introduction7.2 Communication standards7.3 Receivers, transmitters and transceivers: basic architectures7.4 Conventional component technology7.5 MEMS-based technology: filters, duplexers, switches, tunable devices and architecture7.6 Diversity in receivers and transmitters7.7 Multi-input multi-output (MIMO) systems7.8 Systems-on-a-chip7.9 Conclusion