A dual-notch +27dBm Tx-power electrical-balance duplexer.

Barend van Liempd,Jan Craninckx,R. Singh,P. Reynaert,S. Malotaux,J. R. Long

ESSCIRC（2014）

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摘要

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-toRx isolation is demonstrated experimentally with a planar inverted-F antenna. The 0.18um CMOS prototype achieves >50dB isolation for 220MHz aggregated bandwidth or >40dB dual-notch isolation for 160MHz bandwidth, +49dBm Tx-path IIP3 and -48dBc ACE% for +27dBm at the antenna.

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关键词

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,Duplexer,Electrical-Balance,Frequency Division Duplexing,Hybrid Transformer,Isolation

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