X AXIS : offset freq/ k. i' N) y6 G9 V+ P9 F+ {
Define of Phase noise (dBc/Hz)$ I2 b! I X3 L* U# M
Unit BW at an "offset" △ω with respect to ωc (operate freq), , f" t% l5 Y! r- vcalculate the noise power in this bandwidth, + H- v% W1 h% r) i V% I9 K
and divide the result by the average power.