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193 Threads found on Circuit Design Ads
Hi Sir, i want to ask procedure for EM-simulations in circuit containing resistors, inductor, capacitors, bjt and microstrip lines using ads 2015.01. circuit shows "no EM simulation support" for Resistors,capacitors,inductors and BJT thank you
The circuit which has been marked in red seems to create a transmission zero on the transfer function of the matching circuit. The response is follows and as you may see easily there is null @ 2.26GHz that is approximately 3rd harmonics ( rough estimation) of the carrier in order to limit the harmonic levels. 133321[ATTACH=
Hi all.Help me design a 3 channel double balanced image rejection mixer in ads(advanced design systems) tool.I need the circuit topology me design a 3 channel double balanced image rejection mixer IN ads (advanced design systems).I need the circuit topology
Hi all. I intend to see the efficiency of a rectifier circuit design in ads. I saw that to simulate it against frequency, I can use HB simulations. But if i need to obtain the output power or the efficiency vs input power, what needs to be done. If someone can throw some light on this, it will be very helpful.
HB Simulations are a bit tricky so you have to check the simulation setup, active devices models', circuit topology etc. Unless you haven't provided the whole project file with models, there will be just some intuitive help.
Hi! I want to design a push-pull power amplifier in AB class. I tried to use the test circuit of the transistor in the datasheet to get some idea about designing. I'm using ads and I draw the schematic of the test I think I should run HB-simulation. But I couldn't manage to run that. but it (...)
Hi all, Could anyone provide some tutorial/advice how to design an impedance matching section using the Impedance Matching Utility (IMU) of ads when S-Parameter files are available? Say, I have two S-Parameter files/blocks which I would like to match to each other with a defined bandwidth and loss, so I am using the LC_BandpassMatch Smart compon
Hi all I have design a direct conversion transmitter in ads and now I wanna use it one component(the designed circuit). I tried to make symbol for designed schematic but it creates a a component with 3ports. I need a component with only 1 port to connect it to another component later. How should I do it (...)
actually i designed a rectifier circuit in ads software but it doesnt give a good result. now how to design a better rectifier circuit for rectenna system
hi i design a circuit in ads but i dont know how find transistors that they are in saturation point or not is it possible in ads like Hspice to find or not??? please help its nececcery for me.
Hi, I am a student and doing project in analog circuit design in RF frequency. I came to know about ads tool and Tanner tool. Can anybody guide which tool is better for RF circuit design? Thanks
Then clearly start at ads circuit simulation level (model based simulation of layout pieces with MLIN etc.) and build things step by step. Ok, Thanks for Advises
Hello Members, I have a following circuit designed in Schematic window of ads. I would like to export the design to ads Layout window for fabrication phase. Can someone kindly assist me. Awaiting your positive replies, circuit: 118215 Regards
You got 2 ports, where is the third one ??What does it mean "ports gain" ?? Sorry, have you ever designed any circuit in ads ??? ( or in any environment ) If you haven't,please start simpler ones. Go through step-by-step to learn consistantly.
Hello again, Harmonic balance will work for non-linear analysis. You will have to label the node which you want to plot the spectrum of, in your case the node connected to your 50 ohm load. Your circuit topology isn't quite set up to act as a mixer, I am assuming you wanted to create a frequency down converter. You will need a second source,
Hi, Im designing a LNA using ads. I have designed my single stub matching network and I use short circuit stubs in my design. I am getting a negative gain and I m confused about this. If anyone can help on this it will be a great help.
Do a EM simulation and see Input Impedance from S11 on the Smith Chart. Then design a matching circuit ( L-C or Microstrip ) to adapt this impedance to 50 Ohm..
I am doing my project regarding design of cmos power amplifier for wireless applications I do no how to find input and output impedance of the circuit in ads and also to perform impedance matching in agilent ads using inductors and capacitors for impedance matching.I am also in need of TSMC 130 nm cmos ads (...)
Calculating physical parameters can be tedious and erroneous by hand.Instead, you can use "Filter design Guide" or "Passive circuit design Guide" of ads.But if you would learn how to compute these variables , you should be adressed to textbooks.Because every filter structure has its own computation method and there isn't (...)
ads like other electronic layout design tool has a 3D circuit viewer. 112642
you should use the diode spice file, ads has some equivalent circuit, but need you input some parameters.
You need to learn how to design a circuit and how not to design a circuit. The best way to do that is design stuff, and find out the hard way that something doesn't work (expensive) or start looking at other designs, preferably ones that are done well (most of the stuff you'll find online (...)
Respected Members, I have designed a voltage multiplier/Doubler at 950 MHz (0.95 GHz)(Figure below). I am having some trouble in terms of its functionality and design. If you could clarify the following; 1. Is my circuit design appropriate/correct (i.e. simulators, lumped components, values, and rest parameters)? 2. (...)
please help me. how can I set w=? l=? between devices for 50 ohm in microsripe line or cpw line? pcb board is rogers ro4003c and th=.8mm
Hi All when i design a microstrip circuit in the software Agilent ads, i may insert multiple elements such as a number of parallel ms lines. in theory and simulation, as a true concept, these lines may have effects on each other, but when i make the circuit, i may have some walls between these lines, therefore they can't (...)
Assigned the port,where I require to measure amplifying signal, how we can get signal AC voltage at different points of circuit. What we need to use in ads to measure AC signal. Can someone clarify, how to measure amplifying signal in amplifier First, there is no AC signal source at all on your circuit
106330hello guys i am new to ads and i have this assignment of simulating this rectenna circuit along with matching network in ads i am using ads for the first time i tried it myself but i couldnt understand how to do it its kind of different from designing in multisim and proteus here is the figure
I want to design a bandpass filter using equivalent circuit of a two port MEMS resonator. My frequency is 400 MHz. I want to start with the schematic and then design the layout in momentum.
Hello everybody, I am simulating a rectifier circuit using discret components in ads 2009. I would like to know if it's possible to design the PCB layout of the rectifier with ads (or the layout in ads is only for microstrip simulation). If it's possible, would you please give me the different steps to (...)
Hi all, I have a project :"design LNA circuit at 2.5 GHz use transistor SPF-3043". I'm designing it in ads 2009 but i can't find S-parameter file (*.s2p) of transistor SPF-3043. So, can you help me to find it :razz:? Thanks in advance!!
Hi all, I have a project :"design LNA circuit at 2.5 GHz use transistor SPF 3043" . I'm simulating this circuit in ads 2009, but i can't find .s2p file of SPF-3043. Thus, can you help me to find .s2p file of SPF-3043. This is data sheet of it: Thanks in advance!
Hello, How can i design a FR4 PCB and simulate the S parameters corresponding to the layout of my rectifier circuit were incoporated into the simulation in ads 2009. Thanks :)
The first two figures show two 'π' resistive attenuators, with 1 dB and 4 dB attenuation respectively. What I want to do is to place these two attenuators in series and then to design a switch from MOS RF transistor which will control the circuit. The problem that I didn't manage to design the switch(the circuit (...)
Hello Everyone. Could someone give me file of Widlar Bandgap Voltage reference circuit design schematic in ads with graphs? I would highly appreciate it and I can help in any way I could. Thank you.
Salam, i need to develop evaluation board for an rf ampplifier IC (part # PMA-545G1+)..need to connect bias circuit with surface mount to start this task in me out
i need to simulate a circuit with special transistors in cst design i dont know how i can define special kind of transistor in cst design .:shock:
Hi everybody. I am using TSMC 0.18 in ads for simulate my design but I don't know How to connect spiral inductor ports in my circuit? In below picture two Inductor of TSMC 0.18 and my circuit Be seen. 96908 Please Help me : 1) If I want to use INDS2_STD ,Can I connect port 3 to VDD or should it connect to GND?
Cadence design examples are very few as you said but you can inspire by some examples of ads and MWOffice.. The better is to create your own circuit based on design principles of this way, you understand the design fundementals better.
I don't have much of an idea about High impedance surfaces, But if u can show me the structure that u wish to simulate, den i can give u the steps to follow.. ads is a 2.5D simulator and is good for planar circuit design. Unless u need a MOM solution for ur 3D structure, I suggest u try HFSS which gives better results for 3D structure..!!
Greetings, is it possible to use (simulate) digital component like Flip-Flop's etc in ads agilent?
TSMC typically ships model for ads as a netlist file (in Cadence Spectre format) that is included in the ads simulation netlist at runtime. To see that file check in the circuit/models folder under the location that you installed the TSMC Process design Kit. This netlist file is just a simple text file that can be read and (...)
Hello everyone, These days I'm trying to find a way to simulate the transient performance of actual RF switches (owning rise/fall time) in ads, but I didn't figure out how to build such model. For an actual RF switch, it should contain several transistors and passive components right? I just want to find such a model or circuit containing these
It's a demo of Falstad's animated simulator. The voltage doubler is a bridge (or Greinacher) type. It has a caption saying 'Start simulation' but clicking it brings up an error message. I guess it omits a necessary step. Try going to the link below. You'll see a long list of circuits. Scroll 1/3 down the page, and you'll see 'Voltage Doubler'. Cl
I want to design a half-wave rectifier circuit and a voltage doubler circuit, both of which I need to get an equivalent impedance matching network. How can I go about, doing it in ads? Thanks in advance.
hi, I think HFSS simulate the passive model, not including active circuit. You only simulate the parts in your MMIC circuit. After then, export the S parameters to ads or other tools. hope to helpful.
I've used ads before for circuit simulation, but always from a schematic. I eventually need to be able to design a HEMT and eventually a circuit using layout, but as I have no experience with this in ads, I'd like to just learn how to use this function first. Can anybody give some pointers as to go about (...)
Schottky diodes are forward biased components and bias conditions define high frequency behaviour of the diode.That's why you should use large signal models with proper bias and HB simulation will compute frequency response of your circuit. Don't use AC or S-Parameters simulation,they will be erroneous.
hi by using passive circuit DG microstrip circuit in ads, it is possible to simulate more than one smart components? i want to add two SIRs how it ll be? if i connect 2 SIRs with coupling device how to simulate all of these.. ads design guide take only one smart component at a time.. plz help me to do that..
Okay, that`s right... so, what frequency would you recommend? something like 50MHz? Would be the 9th... But the real problem is that I don`t really know how to design it with such a quartz in ads. I`ve never done something like that circuit with the programm. Yes, usually the maximum fundamental frequency you can

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