A 70-GHz transformer-peaking broadband amplifier in 0.13-μm CMOS technology

[[abstract]]A 70-GHz broadband amplifier is realized in a 0.13-mum CMOS technology. By using five cascaded common-source stages with the proposed asymmetric transformer peaking technique, the measured bandwidth and gain can reach 70.6 GHz and 10.3 dB respectively under a power consumption (PDC) of 79.5 mW. With miniaturized transformer design, the core area of the circuit is only ~0.05 mm2. Compared with the state-of-the-art CMOS broadband amplifiers, this work achieves the highest gain-bandwidth product (GBW) of 231 GHz and also the highest GBW/PDC of 2.9 GHz/mW.[[fileno]]2030121030036[[department]]電機工程學