A K-Band RF-MEMS-Enabled Reconfigurable and Multifunctional Low-Noise Amplifier Hybrid Circuit

Table 1

Results of RF-MEMS-Switched LNAs and fixed LNAs.

Circuit/RF performance (at 24 GHz)	Gain (ON) (dB)	Gain (OFF) (dB)	NF (dB)	𝐏𝟏𝐝𝐁(dBm)
SPDT (type I)	−1.4	−13.0	1.4 (estim.)	N/A
SPDT (type II)	−0.9	−22.0	0.9 (estim.)	N/A
LNA1 (low NF)	17.0	N/A	2.2	14
LNA2 (high linearity)	9.5	N/A	2.9	19
Switched LNA1 (low NF)	16.0	−11.5	2.8	15
Switched LNA2 (high linearity)	8.2	−20.8	4.9	20