1. Barret T History of ultra wideband (UWB) radar and communications: pioneers and innovators 1 42
2. Principles and limitations of ultra-wideband FM communications systems;Gerrits;EURASIP Journal of Applications Signal Process Special Issue UWB State-of-the-Art 3,2005
3. Tong T Wenhua Z Mikkelsen J Larsen T A 0.18 µm CMOS low power ring VCO with 1 GHz tuning range for 3-5 GHz FM-UWB applications 1 5
4. Wei C-C Chiu H-C Feng W-S An ultra-wideband CMOS VCO with 3-5 GHz tuning range 87 90
5. Tu W Yeh J Tsai H Wang C A 1.8 V 2.5-5.2 GHz CMOS dual input two stage ring VCO 134 137