Title :
A Dual-Notch +27dBm Tx-Power Electrical-Balance Duplexer
Author :
van Liempd, B. ; Craninckx, J. ; Singh, R. ; Reynaert, P. ; Malotaux, S. ; Long, J.R.
Author_Institution :
Imec, Leuven, Belgium
Abstract :
An electrical-balance duplexer uses series connected step-down transformers to enhance linearity and power handling capability by reducing the voltage swing across nonlinear components. Wideband, dual-notch Tx-to-Rx isolation is demonstrated experimentally with a planar inverted-F antenna. The 0.18μm CMOS prototype achieves >50dB isolation for 220MHz aggregated bandwidth or >40dB dual-notch isolation for 160MHz bandwidth, +49dBm Tx-path IIP3 and -48dBc ACLR1 for +27dBm at the antenna.
Keywords :
CMOS integrated circuits; multiplexing equipment; bandwidth 160 MHz; bandwidth 220 MHz; dual notch Tx-power electrical-balance duplexer; dual-notch isolation; nonlinear components; planar inverted-F antenna; power handling capability; series connected step-down transformers; size 0.18 mum; voltage swing; wideband dual-notch Tx-to-Rx isolation; Bandwidth; CMOS integrated circuits; Noise measurement; Radio frequency; Resistors; System-on-chip; Transformer cores; Duplexer; Electrical-Balance; Frequency Division Duplexing; Hybrid Transformer; Isolation;
Conference_Titel :
European Solid State Circuits Conference (ESSCIRC), ESSCIRC 2014 - 40th
Conference_Location :
Venice Lido
Print_ISBN :
978-1-4799-5694-4
DOI :
10.1109/ESSCIRC.2014.6942122
