Nov 21, 2010 #1 L laperla Full Member level 4 Joined Oct 17, 2009 Messages 191 Helped 2 Reputation 4 Reaction score 3 Trophy points 1,298 Activity points 2,364 Hi friend I have some question about designing of gilbert cell. 1- what are RF power and LO power affect in the cirtcuit? 2- how can I choise them? ( what are the best value for them? )
Hi friend I have some question about designing of gilbert cell. 1- what are RF power and LO power affect in the cirtcuit? 2- how can I choise them? ( what are the best value for them? )
Nov 22, 2010 #2 L laperla Full Member level 4 Joined Oct 17, 2009 Messages 191 Helped 2 Reputation 4 Reaction score 3 Trophy points 1,298 Activity points 2,364 plzzzz help meeeee
Nov 22, 2010 #3 J jayce3390 Full Member level 6 Joined May 22, 2007 Messages 351 Helped 29 Reputation 58 Reaction score 21 Trophy points 1,298 Activity points 3,287 You already posted a similar question about gilbert cell and got some answers: https://www.edaboard.com/threads/179915/
You already posted a similar question about gilbert cell and got some answers: https://www.edaboard.com/threads/179915/
Nov 22, 2010 #4 L laperla Full Member level 4 Joined Oct 17, 2009 Messages 191 Helped 2 Reputation 4 Reaction score 3 Trophy points 1,298 Activity points 2,364 You already posted a similar question about gilbert cell and got some answers: How can I find basic information about gilbert cell? -------------------------------------------------------------------------------- Click to expand... this was my previouse post unfortunately that informations don't relat to my new post!!!!
You already posted a similar question about gilbert cell and got some answers: How can I find basic information about gilbert cell? -------------------------------------------------------------------------------- Click to expand... this was my previouse post unfortunately that informations don't relat to my new post!!!!
Nov 22, 2010 #5 tony_lth Advanced Member level 5 Joined Jul 28, 2010 Messages 2,088 Helped 377 Reputation 756 Reaction score 368 Trophy points 1,363 Location Beijing Activity points 12,641 Just do simulation in ADS, and maybe you will get answer. You should make sure that the gilbet model in ADS is as close as possible to the real component.
Just do simulation in ADS, and maybe you will get answer. You should make sure that the gilbet model in ADS is as close as possible to the real component.
Nov 22, 2010 #6 L laperla Full Member level 4 Joined Oct 17, 2009 Messages 191 Helped 2 Reputation 4 Reaction score 3 Trophy points 1,298 Activity points 2,364 I did it but I couldn't find my problem when I RFPower=-10db , gain is so different from RFpower=10dB???why?????
I did it but I couldn't find my problem when I RFPower=-10db , gain is so different from RFpower=10dB???why?????
Nov 22, 2010 #7 tony_lth Advanced Member level 5 Joined Jul 28, 2010 Messages 2,088 Helped 377 Reputation 756 Reaction score 368 Trophy points 1,363 Location Beijing Activity points 12,641 check the P1dB point , maybe RF=+10dBm cause the mixer saturated. IIP3 is IM3 of input, that is always about 10dB greater than input P1dB.
check the P1dB point , maybe RF=+10dBm cause the mixer saturated. IIP3 is IM3 of input, that is always about 10dB greater than input P1dB.
Nov 23, 2010 #8 L laperla Full Member level 4 Joined Oct 17, 2009 Messages 191 Helped 2 Reputation 4 Reaction score 3 Trophy points 1,298 Activity points 2,364 thanks for reply another problem in this design, I can obtain and draw C.G but I don't know why the noise figure is zero?
thanks for reply another problem in this design, I can obtain and draw C.G but I don't know why the noise figure is zero?
Nov 26, 2010 #9 L laperla Full Member level 4 Joined Oct 17, 2009 Messages 191 Helped 2 Reputation 4 Reaction score 3 Trophy points 1,298 Activity points 2,364 no one here to help me!!!!!!!!!!1
Dec 5, 2010 #10 L laperla Full Member level 4 Joined Oct 17, 2009 Messages 191 Helped 2 Reputation 4 Reaction score 3 Trophy points 1,298 Activity points 2,364 I want to know how I can realize that MOS in saturation or linear( in ADS)?