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36 Threads found on edaboard.com: Momentum Capacitor
Is there any tutorial on how to design capacitor in momentum, @DS? /k
Hello folks, I need to simulate several resistors of very low parasite capacitance in ADS momentum. I contacted the vendor for the model but they charge me a lot of money. I tried with the model from other company but seemed not applicable for my case. Actually the resistor is physically equivalent to one pure resistor parallel with a 41fF ca
Hello folks, I need to simulate several resistors of very low parasite capacitance in ADS momentum. I contacted the vendor for the model but they charge me a lot of money. I tried with the model from other company but seemed not applicable for my case. Actually the resistor is physically equivalent to one pure resistor parallel with a 41fF
Hi, I am using momentum 2006A in order to simulate a planar spiral inductor with a patterned ground shield. The problem is that I do not fully understand how to insert ground to the shield. I tried to use ground ports but they need to be associated with another port. When I associate them with either of the inductor input ports, the results of t
HI everyone, Anyone one know how to place monoblock capacitor on top of thin film?And below the thin film there is cavity? I would like to simulate it using ADS/momentum/EMDS.. Thanks a lot..
hello,i want to layout a inductor and capacitor ,the capacitor musst withstand high power. see please the attached photos who can layout the capacitor and the conductor(the values of the capacitor and inductor are just example)) in momentum with the given 300MHz frequency. thank you very much for your help.:|
Hello, imado_60. Unfortunately, ADS has limited number of coplanar components, only transmission lines i think. If you want to simulate an interdigital capacitor in ADS you can only in momentum, from the EM field point of view (depends now what kind of result do you want from the simulation!!). As far as I know, i don't think any kind of microwave
I'm simulating the capacitance of a HEMT in off-state, and the capacitance values I got from Maxwell 2D (only simulated the cross-section), Sonnet, and momentum are different from each other, and Maxwell 2D's result matches the experimental value very well. I wonder if 2.5D EM simulators like Sonnet and momentum can calculate the fringing capacitan
In momentum you can not simulate lumped elements such as capacitors,inductors etc. except microstrip based components like interdigital capacitor... First you create the schematic and use tline discontunities where the discontunity occures. Then you simply click generate/update layout to generate layout.Look layout if there is a problem (...)
Hi all, have any one ever simulating a mim capacitor in momentum? I understand that the mim capacitor uses some extract layers and different substrate thickness. so the substrate definition in momentum will be different in momentum for mim capacitors. Then I have problem in (...)
Hello all, I am working on a filter design and I use ADS momentum for simulation. Its a microstrip filter which is in a complex shape and can't be set up in ADS schematic. Now I want to add a varactor at some point to make it tunable but I don't know how to do it. So I guess I have to do this in schematic window to be able to sweep the biasing v
You should put 10 times 1pF MiM cap parallel.. If your operating frequency is pretty high, then simulate them in momentum to check the parasitic inductances and stray capacitances..
I was trying to use ADS momentum, but somebody said it was a 2.5D simulation software This "2.5D" refers to the layered modelling, instead of arbitrary 3D shapes. However, the solver solves for the full 3D solution of Maxwell's equations. which I guess will ignore the horizontal EM field bet
capacitors are NOT recognized by momentum EM simulator.All you can do is to put 2 ports between capacitor plates' pads on layout and then connect a capacitor or equivalent circuit when you transfer your layout into schematic.
I suggest for your application using momentum to simulate the actual capacitor geometry you are using. You can import your gdsII file directly into the ADS layout to do this. If you define your silicon substrate losses correctly and also the process layers then you will get a very accurate result. I simulate complete MMICs this way with excelle
I think the current momentum can't handle that. Can you use momentum's result in the schematic mode?
Well, you should remember the C=epsilon0*epsilonr*S/d formula. This is quite a good approximation for low frequency. You should simulate with planar EM simulator like momentum (ADS). Is this cap used for decoupling? Why not use a radial stub instead then? Which stackup do you have?
Hi, ommumm. I think you can use ADS's momentum or HFSS to model and simulate the two-port inductor, and get the S parameters file. So you can calculate inductor value from S parameters using the right formulas.
there are alot , and in many asspects as well u can analyze the microstrip filter using EM simulation which is most accurate there are "momentum , EM sight , IE3d , sonnet , HFSS there are also filter simulation in compact model level , which is a models for TX lines the software . MWO , ADS , Eagleware , Ansoft designer khouly
Hi I think it's fundamental question The s-parameters are exact if we have established what trans line connected to component and in what substrate component is placed The using s-parameters measured on one substrate with one width of trl to model component behavior with another trl width produce errror due to component-trl coupling. We can not
Hi 1.Add ports for lumped components in your layout 2.simulate layout using momentum 3.approach 1: make schematic based on s-parameters data component + lumped elements, approach 2: make layout component using option from momentum menu and make schematic based on layout component + lumped elements 4.simulate schematic
Hi,I am designing a capacitor using the microstrip how can I measure my capacitance in the sumulation for momentum ADS layout design. I have perfect matching port terminals 50 Ohm and interdigital capacitor. thanks
hello all i am trying to make Metal insulator metal capacitor using momentum, the only little problem i am facing is how to measure its capacitance with results in S parameters, i am using reactive part of S21 to measure capacitance, Is it correct!! secondly how could i use S parameter value to optimize the capacitor, the impedance value (...)
Hello ; It's very urgent for all members, i need your help about this resonator::?: 1-What's the role of the gap at the endings of the CRLH TL as shown in figure?if it represents a capacitor, how can we find it's
Hi all, Might be basic stuff, but I feel really tired these days. And obviously, I am quite in a hurry !! I hope you could help me :) Here's the problem. I have an inductor, modelized by its S-parameters, imported from momentum to ADS as a component. I'd like to make this inductor resonate at a certain frequency, with a parallel capaci
Hi! everybody, I simulate a frequency divider with the ADS transient simulator and also do the layout extraction with the momentum. However when I put the extraction data block (layout.sp) into the circuit in order to finish the post-layout simulation, the simulation/synthesis messages appear a error that shows "Error detected by hpeesofsim TRAN
Here are the example files. examples/momentum/emcktcosim/LTCC_prj examples/RF_SiP/GT943_LTCC_Modeling_prj
I am designing a mixer to operate at 2.4 GHz.. and have an inductor that has to be grounded in the matching network...since I am using microstrip i know i'll have to drill a hole to connect it to ground spiral inductor the best route to go or an air core inductor which i'll have to wind myself...also when designing a spiral inductor in mom
You8 can use any layer, but you need to be careful while momentum-->substrate-->create m/modify. You can cross check the same with 3D view
Hi everyone, I encountered a problem in my simulation using ADS. Usually I always connect the ref node of the 2 port s-parameter item to ground, and it seems working well. Yesterday, I used design guide in ADS to generate a interdigital capacitor,and simulate it in momentum as a two port network.The s parameter got from the simulation was imported
FEM software is EM solver software use to do momentum simulation to find out parasitic resistance, capacitance of passive components. EM Solver or FEM tool most of time used to find parasitic from Board, of inductor, Capacitance. You can download some free trial licenses and setup eagle ware is EM Solver tool from Agilent Technologies.
Hello friends, I need a LPF around 850 MHz corner and I found this is quite large as parallel coupled lines so I modified to a 9'th Chebyshev lumped version. Inductors are in 10nH range and caps in 3...10pF and I decided to made inductors on PCB and keep caps ceramics 0805. I choose for inductors W=10 mils (for Z>100) built from MLIN, MTEE an
Hi i designed top-c coupled bandpass filter with transmission line stubs and SMT capacitors. I dont know anything about layout and for this reason i used ADS's automatic layout generate function. When i converted my design by this way and simulated with momentum i got results that are very very bad.Instead of filter I tried with very simple matchin
do you know how to design MIM capacitor using ADS software? To get started, just use parallel plate capacitor equation and calculate the area that you need for a given C value. To include the distributed effect, you can use a circuit model for broad side coupled lines. Maybe the SBCLIN will work, if you use a large
Usually you place a internal port where you need the lumped element. Then you simulate in momentum and make a Layout-component in schematic. Now you can attach the lumped component.
Hi, I am designing a CRLH unit cell with an interdigital capacitor and short circuited stub (with via to ground) in ADS momentum. I want to use this single unit cell as a matching part for my rectifier circuit ( as of now i am using a diode for simplification). Can someone help me in suggesting a way to find the impedance of the unit cell using