The Designer's Guide Community
Forum
ForumVerilog-AMSAnalysisModelingDesignTheory
Welcome, Guest. Please Login or Register. Please follow the Forum guidelines.
Aug 15th, 2024, 9:24am
 
  HomeHelpSearchLoginRegisterPM to admin    
The Designer's Guide Community Forum › Design › RF Design › OPTIMIZATION TECHNIQUES FOR RF CMOS CIRCUITS
‹ Previous topic | Next topic ›
Pages: 1
Send Topic Print
OPTIMIZATION TECHNIQUES FOR RF CMOS CIRCUITS (Read 2655 times)
Mir
Junior Member
**
Offline



Posts: 25
Kashmir
OPTIMIZATION TECHNIQUES FOR RF CMOS CIRCUITS
Mar 30th, 2014, 8:06am  
What should be an approach to achieve a low noise figure in a RF Cmos circuit while doing optimization
Back to top
 
 
With Regards
View Profile   IP Logged
aaron_do
Senior Fellow
******
Offline



Posts: 1398
Re: OPTIMIZATION TECHNIQUES FOR RF CMOS CIRCUITS
Reply #1 - Apr 3rd, 2014, 2:51am  
Your question is way too general. So as a very general answer, I would say keep the design simple and maximize your gain. But really if you just follow that you might end up with the lowest noise circuit in the world that doesn't work properly.


Aaron
Back to top
 
 
there is no energy in matter other than that received from the environment - Nikola Tesla
View Profile   IP Logged
Mir
Junior Member
**
Offline



Posts: 25
Kashmir
Re: OPTIMIZATION TECHNIQUES FOR RF CMOS CIRCUITS
Reply #2 - Apr 3rd, 2014, 6:08am  
thanks Mr. Aaron

Actually i had designed a Wideband Rf Mixer (2-6GHz)...though m getting gain quite high (23dB)but at the same time Noise figure is (37dB SSb)...i.e NF is such a big concern here
Back to top
 
 
With Regards
View Profile   IP Logged
aaron_do
Senior Fellow
******
Offline



Posts: 1398
Re: OPTIMIZATION TECHNIQUES FOR RF CMOS CIRCUITS
Reply #3 - Apr 3rd, 2014, 6:31pm  
That's an unusually high NF even without an LNA. Is your output frequency below the flicker noise corner? Does it match simulations? Maybe there's a problem with your circuit.


regards,
Aaron
Back to top
 
 
there is no energy in matter other than that received from the environment - Nikola Tesla
View Profile   IP Logged
Pages: 1
Send Topic Print
‹ Previous topic | Next topic ›
« Home ‹ Board
The Designer's Guide Community Forum » Powered by YaBB 2.2.2!
YaBB © 2000-2008. All Rights Reserved.
Copyright 2002-2024 Designer’s Guide Consulting, Inc. Designer’s Guide® is a registered trademark of Designer’s Guide Consulting, Inc. All rights reserved. Send comments or questions to editor@designers-guide.org. Consider submitting a paper or model.