A differential CMOS T/R switch for multistandard applications

• Main Authors: Zhang, Yue Ping, Li, Qiang, Fan, Wei, Ang, Chew Hoe, Li, He
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2009
• Subjects: DRNTU::Engineering::Electrical and electronic engineering
• Online Access: https://hdl.handle.net/10356/91429; http://hdl.handle.net/10220/4648
• Institution: Nanyang Technological University

This brief presents a differential transmit–receive (T/R) switch integrated in a 0.18- m standard CMOS technology for wireless applications up to 6 GHz. This switch design employs fully differential architecture to accommodate the design challenge of differential transceivers and improve the linearity performance. It exhibits less than 2-dB insertion loss, higher than 15-dB isolation, in a 60 m 40 m area. 15-dBm power at 1-dB compression point (P1dB) is achieved without using additional techniques to enhance the linearity. This switch is suitable for differential transceiver front-ends with a moderate power level. To the best of the authors’ knowledge, this is the first reported differential T/R switch in CMOS for multistandard and wideband wireless applications.