Question: Phase Noise issue simulated with SpectreRF

Status
Not open for further replies.
K

koukei

Newbie level 4
Joined
May 18, 2009
Messages
7
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,323
Question:
To do normal divider's phase noise simulate with SpectreRF(PSS + Pnoise). The Sweeptype "relative" or "absolute" have great effect to the phase noise simulation result, why?
If sweeptype set to "relative", the phase noise is about 140dBc/Hz@100KHz, but if sweeptype set to "absolute", the phase noise is about 85dBc/Hz@100KHz. Why?

Thanks,
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…