A miniaturized 70-GHz broadband amplifier in 0.13-μm CMOS technology

[[abstract]]A 70-GHz broadband amplifier is realized in a 0.13- m 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 under a power consumption hgA of 79.5 mW. Within the circuit bandwidth, the maximum input and output reflection coefficients are 6.1 and 10.8 dB, respectively. The group delay variation is sion point is 0.2 dBm at 5 GHz.With the miniaturized transformer design, the occupied core area of the circuit is only 12.0 ps, and the output 1-dB compres- 0.05 mmP. This amplifier demonstrates a gain-bandwidth product of 231GHz and aqf hg up to 2.9 GHz/mW.[[fileno]]2030121010039[[department]]電機工程學