Title :
A transformer-based broadband I/O matching-balun-T/R switch front-end combo scheme in standard CMOS
Author :
Wang, Yanjie ; Wang, Hua ; Hull, Chris ; Ravid, Shmuel
Author_Institution :
Intel Corp., Hillsboro, OR, USA
Abstract :
A transformer-based broadband front-end combo scheme (I/O matching, balun, and T/R switch) is proposed and achieves both high isolation and linearity performance. A design example is prototyped in a standard 90nm CMOS process covering a 1dB-bandwidth of 2GHz from 5GHz to 7GHz based on the total insertion loss. In the transmitting (TX) mode, the complete front-end combo achieves 2.77dB insertion loss, +45.7dBm IIP3, and -42dB antenna-receiver isolation. In the receiving (RX) mode, the front-end combo demonstrates an insertion loss of 2.62dB and +44.2dBm IIP3 with -42dB transmitter-antenna isolation. The front-end combo occupies a core area of 0.5mm2 including on-chip balun, which is conducive to broadband transceiver system-on-chip (SOC) integration.
Keywords :
CMOS integrated circuits; field effect MMIC; microwave antennas; receiving antennas; system-on-chip; transformers; transmitting antennas; RX mode; TX mode; antenna-receiver isolation; bandwidth 2 GHz; broadband transceiver SOC integration; broadband transceiver system-on-chip integration; frequency 5 GHz to 7 GHz; loss 2.62 dB; loss 2.77 dB; on-chip balun; receiving mode; size 90 nm; standard CMOS process; total insertion loss; transformer-based broadband I-O matching-balun-T-R switch; transformer-based broadband front-end combo scheme; transmitter-antenna isolation; transmitting mode; Broadband antennas; Broadband communication; CMOS integrated circuits; Impedance matching; Switches; Switching circuits;
Conference_Titel :
Custom Integrated Circuits Conference (CICC), 2011 IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4577-0222-8
DOI :
10.1109/CICC.2011.6055284
