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yes, i think the main reason is just as you said. the siganl in primary coil was coupled to secondary one. the phenomena was worse at high freq than low freq, which also show the effort of capacitance coupling. But the coupling is along the whole coil, which is distributed, the quantitative...
since i could not upload the pic, i'll try to explain it more clearly.
the balun was 1:1, the primary coil was a one turn indcutor with top metal, the the secondary coil was the same pattern as primary coil but was the another metal layer. so the layout is fully differntial, and no metal...
I designed an onchip balun to fullfill the single to differential convertion at output. the self-inductor was about 0.3nH. and the operating freq. was about 18G. the balun differntial output had a center tap, which should be connected to a AC ground. I found that if the center tap was not...
I am familiar with the RF front end circuit design,such as LNA, mixer and so on,
but it puzzles me that how to determine the specifics (e.g. Gain, bandwidth, Noise figure, IIP3...) for the RF front end receiver which fulfilled the standard or protocol such as WLAN?
I think this problem is...
Hello everyone,
1. since the ground plane of microstrip line is in different layer with the center line, assuming the CPW line is in layer 1, the center line of microstip is also in layer1, and the ground of microstrip line is in layer2, how could I set the ports?
on the CPW side, I set as...
i want to simulate a model of MOS transistor,
for the VCCS, the expression is I=gm*Vgs, and gm=gm0*exp(-jωτ), where τ is a delay constant,ω is the operate frequency. But how do I descripe exp(-jωτ) in netlist, which I write it in HSPICE or ICCAP ?
Any idea is welcome!
iccap site:edaboard.com
Can anybody offer some studing materials about ICCAP except for the user guide?
I am a beginner on MOS Modeling, and any instrument and advice is welcome!
i want to design a LVDS Driver/Receiver in 0.5 um CMOS, the speed achieving a few hundreds mbps is ok, which is similar to DS90LV019, but the datasheet said the process of DS90LV019 is "cs080" . i really puzzle about it , what's cs080?
Thanks in advance!
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