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Then we focus on the P1dB simulation first:

If my LNA is operating at 60 GHz, should I put frf1 = 60 GHz for my hb analysis?

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...

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...

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...

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:

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May...

My bandwidth is (65.97-52.17) GHz = 13.8 GHz

May I know how to determine whether OIP3 falls into bandwidth?

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...

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...

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

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...

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...

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.

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Besides, in SCI, I've taken...

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...

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...

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...

Agreed, especially when I have only 4GB of soldered RAM on my laptop, I had to configure my simulation to output relatively accurate results while using just below my RAM limit. Compromises had to be...

Wow, that's an impressive amount of RAM, and even that was still not enough for you! May I know how large is the structure?

Thanks for the reply! I'm aware that I can reduce RAM usage by using conformal mesh and increase the size of the mesh, I'm just curious whether anyone here had hit high RAM usage for their projects,...

Hi, I'm just curious, what are your maximum used RAM for the projects you've been simulated for either/both software?

Is it possible to achieve extreme RAM usage, like 64 GB or above for a single...

Say I created four single-turn round (stadium) inductors to operate at 60 GHz, all within 68 pH to 104 pH, and I've simulated them with Sonnet, they somehow reached my targeted inductance with decent...

Hi, I'm designing custom inductors using Spiral Inductor Assistant for Sonnet. Below are my questions:

1. For "round differential" inductors, if i'm creating a single-turn inductor, why does the...

UPDATE:

I've somehow solved the problem.

What I did:

1. In .bashrc, I've typed the wrong directory at the MMSIM lines, so I've changed the part as shown below (some paths may be redundant):...

If I enter "which spectre", the terminal returned:


[JLHW@jlhw opt]$ which spectre
/usr/bin/which: no spectre in...

/opt/cadence/MMSIM151/tools/spectre

Hi, I, a rookie in Linux environment, have installed Cadence IC617 on CentOS 7.6 and was going to simulate an analogue IC schematic.

When I launched ADE L, the command interpreter window (CIW)...