A 54-GHz PUSH-PUSH VCO WITH WIDE TUNING RANGE IN 0.18-mu m CMOS TECHNOLOGY

作者：Huang Tzuen Hsi^*; You Pen Li; Huang Kai Li

来源：Microwave and Optical Technology Letters, 2010, 52(7): 1480-1483.

DOI：10.1002/mop.25268

• push-push
• V-band
• voltage-controlled oscillator
• wide tuning range

The design of a V-band 54-GHz push push voltage-controlled oscillator (VCO) with a wide tuning range is presented in this article. The circuit is fabricated using 0.18-mu m CMOS technology. A new single-turn inductor structure with a smaller inductance. which can reduce the substrate loss, is adopted for the oscillator core to have the performances of low phase noise and a wide tuning range. Besides, a new technique that delivers the output signal from the common drain of the no-stage buffers has been proposed to enhance the output power. The VCO core dissipates 8.54 mW from a 2 V supply. The buffer stage consumes 10.11 mW for raising the measured output power level up to -25 am. The measured output phase noise at an offset of 1 MHz front the carrier frequency of 53.0 GHz is about -94.45 dBc/Hz. This VCO. with a tuning range of 2.68 GHz (4.9%) shows the tuning-related figure-of-merit FOM(T) of -170.12 dB.

• 出版日期2010-7