A low-power CMOS power amplifier for ultra wideband (UWB) applications

Abstract— This paper presents the design and implementation of a wideband power amplifier for UWB applications, covering the lower band frequencies of 3.1 GHz to 4.8 GHz. To achieve sufficient linearity and efficiency, this PA operates in the Class-AB regime, delivering an output power of -4.2 dBm at an input-1dB compression point of -22 dBm for a 4 GHz signal. This PA has a differential input and a single-ended output that has been matched to 50Ω at both the ends. Complete design and implementation was done using TSMC 0.18µm CMOS technology and it consumes a very low power of 25 mW, while realizing a flat gain of 19±1 dB across the whole band of operation.

• Type: Conference
• Year: 2005
• Where: ISCAS
• Authors: Sajay Jose, Hyung-Jin Lee, Dong Sam Ha, Sangsung Choi
• Keywords: GHz Signal, ISCAS 2005, Lower Band Frequencies, Wideband Power Amplifier