A Low Power Voltage Controlled Oscillator Design

Table 3

Comparison of VCO performances.

VCO designs	Operating frequency; (GHz)	VDD; (V)	Technology; (µm)	Power consumption	Phase noise; (dBc/Hz)
[4]	2.17–2.73	0.9	0.18	2.7 mW	−122.3 at 1 MHz
[8]	0.39–1.41	1.8	0.18	12.5 mW	−80 at 600 KHz
[11]	0.12–1.3	0.5	0.18	0.085 mW	—
[14]	1.57–3.57	1.8	0.090	16.8 mW	−90.01 at 600 kHz
[16]	0.65–1.6	1.8	0.18	39 mW	−108 at 0.2 MHz
Present work 3 stages	3.2909–4.2280	1.8	0.18	335.4071–486.1816 𝜇W	−80.9461 at 1 MHz
Present work 5 stages	1.9406–2.5769	1.8	0.18	559.0118–810.3027 𝜇W	−84.5595 at 1 MHz
Present work 7 stages	1.3984–1.8077	1.8	0.18	782.6165–1134.400 𝜇W	−86.6507 at 1 MHz