Designer’s Guide Community

‹ Previous topic | Next topic ›

Pages: 1

Phase Noise Simulation of Injection Locked Oscillator (Read 72 times)

sarthak

Junior Member

Offline

Posts: 10

Phase Noise Simulation of Injection Locked Oscillator
Dec 13^th, 2017, 7:27am

I am using the following setting for calculation of the phase noise using PSS and PNOiSE analysis:
PSS:
Beat Frequency = 50MHz (Same as the injection frequency)
Number of Harmonics = 100

PNOISE:
SweepType = relative
Relative Harmonic = 100 (Because oscillator frequency is 5G = 100*50M)
Start and Stop Frequencies = 10k and 100M
Maximum Sideband = 15

I am getting results which seem correct. Just wanted �to make sure if these parameters are correct. In particular, I am not sure if relative harmonic is the harmonic of the beat frequency or the oscillator frequency?
Thanks!

pss.PNG

IP Logged

deba Community Member Offline Posts: 84	Re: Phase Noise Simulation of Injection Locked Oscillator Reply #1 - Dec 14^th, 2017, 2:46am Your settings are correct. Just make sure that maxacfreq is set to maximum_sideband times the oscillation_frequency. Otherwise the noise folding is not taken into account.
Back to top	IP Logged

sarthak Junior Member Offline Posts: 10	Re: Phase Noise Simulation of Injection Locked Oscillator Reply #2 - Dec 14^th, 2017, 2:59am Thank you for replying. Should I also change the maxstep setting in the simulation?
Back to top	IP Logged

Pages: 1

‹ Previous topic | Next topic ›