Jan 9, 2017 #1 N nsarimin Newbie level 6 Joined Jan 16, 2016 Messages 14 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 106 Dear all, I am a beginner. How to perform a load/source pull for differential PA? Do I need to use balun/transformer? Or a single ended configuration is sufficient to extract the optimum impedance then connect it in differential manner to get 3dB extra power? Please share. Thanks
Dear all, I am a beginner. How to perform a load/source pull for differential PA? Do I need to use balun/transformer? Or a single ended configuration is sufficient to extract the optimum impedance then connect it in differential manner to get 3dB extra power? Please share. Thanks
Jan 9, 2017 #2 BigBoss Advanced Member level 6 Joined Nov 17, 2001 Messages 5,953 Helped 1,609 Reputation 3,225 Reaction score 1,593 Trophy points 1,393 Location Türkiye Activity points 35,774 No, you should use Balun.Differential Optimum Load will absolutely different than single ended. But later on, de-embedding of the Balun from Optimum Load Impedance will be quite hard because of phase relationships.
No, you should use Balun.Differential Optimum Load will absolutely different than single ended. But later on, de-embedding of the Balun from Optimum Load Impedance will be quite hard because of phase relationships.
Jan 9, 2017 #3 N nsarimin Newbie level 6 Joined Jan 16, 2016 Messages 14 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 106 I am using Cadence spectre. Do you think I can use ideal balun? Thanks
Jan 9, 2017 #4 FvM Super Moderator Staff member Joined Jan 22, 2008 Messages 52,413 Helped 14,749 Reputation 29,780 Reaction score 14,097 Trophy points 1,393 Location Bochum, Germany Activity points 298,068 In simulation, you won't need a balun, just a differentially connected load.
Jan 9, 2017 #5 N nsarimin Newbie level 6 Joined Jan 16, 2016 Messages 14 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 106 If you dont mind, can you show some visual of that.