A CMOS 180-GHz Signal Source with an Integrated Frequency Doubler

초록

A 180-GHz signal source based on a 65-nm CMOS technology has been developed in this study. The 180-GHz signal source consists of a 90-GHz fundamental-mode Colpitts oscillator and a 180-GHz frequency doubler. A coupled-line is employed to couple two oscillator cores for generating a differential signal, which is delivered to the input of the differential-mode doubler. The fabricated signal source operates from 181.2 to 182.4 GHz with output power varying from - 15.3 to - 10.8 dBm. The peak output power was - 10.53 dBm at 181.3 GHz with a DC power consumption of 42 mW, and the associated phase noise was - 71 dBc/Hz at 1 MHz offset.

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