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the default conversion gain in "mixer design guide" is power conversion gain, and it do has negative value!
you can name the i/o pin, and get the voltage conversion gain such as:
ConvGain_voltage=dbm(mix(HB.Voutp,{1,-1}))-dbm(mix(HB.Vinp,{0,1}))
if f_LO > f_RF
it can be consider as a parellel capacitor to ground, and the value my be between 100 ~ 600f, depend on the pad structure.
btw: you can get the detail information from your foundary, such as TSMC et al.
Re: measure Er
There are many method, suck like cavity pertubation, transmission line, and so on, you can find them in any microwave measurement cookbook
gray analog integrated circuit rapidshare
gray
razavi
allen
if you read and exercised this there book, you have solid basics on analog
Added after 1 minutes:
you can find the solutions with google
CST MWS is based on FIT, u can start your learn from two documents -- getting start and tutorials, in "documentation" fold which is direct in CST install fold.
antenna coax length
I am simulating a mono antenna feed by coaxial line, and find that different length of coax line will lead to different S11 parameters. What length on earth should be? I have no idea to find the principle, Can anyone help me? Thanks very much!
Re: Why do we need SFDR?
linear dynamic range, which use 1-db gain compression point for the upper side, is used for PA; SFDR is used for LNA and Mixer et al.
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