Table 3: Frequency synthesizer performance summary and comparison.

[11]This work

Technology0.5 μm SiGe CMOS0.18  m CMOS
VCO frequency range (GHz)1.15–1.751.5–2.1
Current (mA)19.51.2
Calibration resolution (Hz)5 M1 M
Phase noise−129 dBc/Hz at 400 KHz
−139 dBc/Hz at 3 MHz
−126.3 dBc/Hz at 400 KHz
−137 dBc/Hz at 3 MHz
Calibration time (μs)150450