Abstract
A 140GHz CMOS wideband amplifier is proposed with the low group delay variation required to achieve a high-speed D-band wireless receiver. The amplifier is fabricated by the standard 1P12M 65nm CMOS process. From measurement, the gain is 10dB with a group delay variation of 10.2ps. The 0.1dB bandwidth, used as the figure of merit of the gain flatness, is 12GHz, whereas the generally used 3dB bandwidth is 27.6GHz. The power consumption is 57.1mW with a supply voltage of 1.2V.
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