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Okay, so right now, I have two testbenches for the same LNA circuit, one for P1dB sim, another for IP3.
for P1dB, I've set my frf1 variable in ADE as 60 GHz and for IP3, frf1=59.5 GHz, frf2=59 GHz as mentioned previously.
The result of P1dB is as shown:
I've heard about the rule of thumb...
Alright, thanks for the clarification, then I'll leave my IP3 plot as it is shown here.
BTW, If I set the frequency for P1dB plot at 60 GHz, will the P1dB curve contradict with my current setup for IP3 since the frequencies are already different for both plots?
Thanks
I've tested with other values by playing with other harmonics within the bandwidth in the direct plot form, and the results will differ, so may I know how can we decide which harmonics to produce the right IP3?
also, if I set the frequency for P1dB plot at 60 GHz, will it contradict the...
Okay, I've chosen f1=59.5 GHz and f2=59 GHz and run the hb analysis. Then at the main form, I chose 59.5 GHz as 1st order freq and 60.5 GHz as 3rd order freq, the result is as shown:
May I know are the two frequencies acceptable in this analysis?
Hi, rookie post here, the LNA I'm simulating in Cadence ADE is operating at a carrier frequency of 60 GHz. I'm using hb analysis.
I'm aware of the formula 2f1 - f2 = fc, but:
1. Is there a formula/method/rule of thumb to specify either f1 or f2?
2. Is it correct that I set frf1 (tone 1) as 60...
Hi, I'm using Calibre in Cadence Virtuoso to verify my layout using Silterra's PDK. I have acquired all four DRC and LVS/PEX runset and header TXT files, but all of them could not be loaded inside Calibre Interactive. Below shows what would happen after loading the DRC runset file after being...
Did some quick digging and found this, your answer should be in page 7: https://people.rit.edu/lffeee/CD4007_SPICE_MODEL.pdf
PMOS:
W = 360 um, L = 10 um
nMOS:
W = 170 um, L = 10 um
Hope that helps!
Hi, the PDK I currently use supports Calibre, but their header and runset file for DRC and LVS are all in TXT format (4 files in total), may I know are text files supported by Calibre?
Also, when I first opened nmDRC, it prompted me to load a runset file, so I choose the PDK's runset text file...
So hypothetically, if I remove the feedlines in SCI (only the oval shapes are left), will the simulation results be the same with my previous simulations in Sonnet?
Speaking of which, these inductors ultimately need to be connected with the main LNA circuit, which involves transmission lines...
there are arrows in all inductors in xgeom, in fact, all of them are synthesised by your spiral inductor assistant and come with the arrows by default.
Besides, in SCI, I've taken special attention to the box margins so that it will appear the same with the box size (um) in xgeom. Note that...
The feedlines are the same as I imported their gdsII from Sonnet.
not sure about the de-embedding settings and different equations, may I know where to check it?
(edit: the equations I used are inductance1 and q-factor respectively in both platforms.)
also, my .matl file was translated using...
Hi,
As per title, I am simulating four custom inductors that'll operate at their target inductance at 60 GHz. All simulations are satisfactory when using Sonnet by itself, however when I re-simulate them using Sonnet Cadence Interface (SCI), all of their inductances are way higher then...
Hi everyone,
I've successfully simulated several inductors in Sonnet and is moving on to re-simulate them using Sonnet Cadence Interface and integrate them into my LNA in Cadence Virtuoso for further simulations. Back in Sonnet, the inductors are following the dielectric layers exactly from...
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