Abstract
A modified fT-doubler with current-reused technique is proposed to realize a low power and low phase noise V-band voltage controlled oscillator (VCO) in a standard 1P9M 90-nm CMOS. The proposed technique not only increases the operation frequency but also reduces the DC power consumption at millimeter-wave frequencies. The short circuit unity gain frequency fT of the modified fT-doubler yields a 31% improvement compared to that of conventional one. Measurement result shows that the designed VCO achieves a phase noise of-115.4 dBc/Hz at 10-MHz offset under a low power consumption of 2 mW. The figure-of-merit is up to-187.7 dBc/Hz.
Original language | English |
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Pages (from-to) | 1752-1755 |
Number of pages | 4 |
Journal | Microwave and Optical Technology Letters |
Volume | 57 |
Issue number | 7 |
DOIs | |
State | Published - 1 Jul 2015 |
Keywords
- current reused
- modified f-doubler
- V-band
- voltage controlled oscillator