Development of an Automatic

In this project, a 3.9-4.2GHz monolithic
CMOS VCO (voltage control oscillator) is
accomplished. With a power consumption of
6.6mW, phase noise of–115.5 dBc/Hz
and–119.7dBc/Hz can be achieved at offset
frequency of 600kHz and 1MHz respectively,
which is comparable to the performance of
recently published monolithic CMOS VCOs.
After being handled with ICP (inductive
coupled plasma) post processing, with the same
power consumption of 6.6mW, phase noise
of –118.2dBc/Hz and –122.9 dBc/Hz can be
achieved at offset frequency of 600 kHz and 1
MHz respectively. Its F.O.M. (13.6) is superior
to all monolithic CMOS VCOs, and represents
the state of the art.