Design of CMOS Tunable Image-Rejection Low-Noise Amplifier with Active Inductor

Table 1

Comparison between proposed IRLNA and LNA.

Parameters	Proposed IRLNA	LNA
Operating frequency	3.06 GHz	3.16 GHz
S11	−17.8 dB	−30.7 dB
S21	11.8 dB	14.6 dB
S12	−29.2 dB	−21.5 dB
S22	−10.7 dB	−15.4 dB
Noise figure (NF)
Simulation	2.73 dB	1.44 dB
Measurement	6.95 dB	5.76 dB
Measurement^*	4.95 dB	3.76 dB
Noise factor (𝐹)
Simulation	1.87	1.39
Measurement	4.95	3.77
Measurement^*	3.13	2.38
1 dB compression point	−12 dBm	−15 dBm
Image-rejection (filter only)	8.25 dB	—
Image-rejection tuning range	1.25–1.49 GHz	—
Power dissipation	11 mW	7.2 mW

^* Worst case estimated noise figures after de-embedding losses from cable and GSG Infinity probe. Actual noise figures will be better.