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37 Threads found on edaboard.com: Ads Output Impedance
Hi... I'm doing multistage rectifier.... During schematic simulation...measured output current (I) and voltage (V) are good...(all the impedance/resistance value are remain the same for different input power). However, the same circuit (same component but now with the layout)...the measured output I and V showed that the load (...)
Hi all, I am getting a good S11 response for a rectifier circuit (<-20db at resonating frequency) but while simulating for efficiency using hb simulations, the efficiency is coming very low. What may be the cause of the signal not being transferred from input to output side ? The same problem was posted in another thread : https://www.edaboard
1) select a device according to operating frequency, gain, supply voltage, power and etc. 2) plot DC characteristics and determine DC operating by using Prms = Vds x Ids. Prms is RF output power. 3) do impedance matching for the PA using commercially available matching tools (e.g ads and etc). make sure the matching network within the Qmax (...)
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 (...)
When I run your zip file in ads2012 with bondwireutility_dkit_0.9 lib, and met the error: "Error detected by hpeesofsim during netlist flattening. Unresolved references: Shape2_Rw Shape1_Rw" Who can help me on that? For f_t issue, 1st I guess he optimize the bias circuit length, so a little change in the main circuit, the bias changed. f_t should f
I am simulating a paper of 2.45 GHz rectenna using ads. The circuit diagram given in paper and made by myself in ads are shown below; 110986 110987 I wanted to ask the following: 1. Firstly, is my circuit correctly implemented? 2. How did impedance matching occurred via ads matching tool? I
Hi What I'm trying to do is create a bias network for avago ATF-34143 transistor model in ads which matches the plotted S parameters of an S2P file to that of an ads model of the transistor with a bias circuit. Bias at VDS=3 V, IDS=40 mA. Both the model and the S2P file of the transistor are obtained from avago's website here: www.av
Why do I get so many smith charts in a single ( 4 circles starting from the centre?) graph while plotting L_stabcircle using smith chart(from the palette) in ads? Which smith circle to choose for interpreting the stable region for output stability circle?
I found a power transistor that is broadband internally matched FET from Toshiba company. I found it?s S-parameter file(s2p file block) from Toshiba company?s internet site. I simulate it with S-parameter simulation of ads with two SP-Probe for impedance watching of it like this: ht
You must have output load pull impedance. If you have transistor model, a simulation software (ads, Ansoft Des,..) can help you. and if you have not refer to datasheet and find that datas. good luck.
Do the following: 1. plot your forward reflection (S11) and reverse reflection (S22) on a smith chart on ads 2. set a marker on your deseired frequencies 3. read out the impedance values
Does anyone one know how to optimize the source impedance for P1dB in ads?? There is one design guide to find the load impedance at different gain compression. But I need to find the source impedance as well for P1dB. I would really appreciate any kind of help or suggestion :)
I saved real voltage output data from the impedance analyzer as a CVS excel file and then, I usually put real data using VPWL_FILE source from the Pspice simulation. So, I could use the voltage source with real voltage signals and simulated some simple design together. From ads, I found VtPWL but it looks like I need to type each data at (...)
Hello! Help me please. In datasheet on transistor (BLF888) are provided depending on frequency its input and output complex impedance (Zi and Zl). How to add in ads these values (what element) that it was possible to simulate amplifier?
Hi, ads Load pull test for PD20015 gives 0.389+j*0.085 which is obtained by placing marker m3 as shown in the figure. My question is that , to which impedance does it point. is it transistors (looking into the device) impedance or the load impedance (looking outside the device output)?
Im designing a 180 Hybride coupler but this design im doing just taken from one project from the internet in ads the out put i have is totally different .plz can any body check this one
can anyone tell me .m on impedance parameter in ads ?? the picture is shown
Hi, I want to design a microwave amplifier that meets the following specifications : gain of 10dB?0.1dB, frequency range of 2kHz to 4GHz, S11 and S22 should be less that -15dB, input/output impedance should be 50Ω. Please, I need help to get a suitable circuit for this design . Thanks
Hi, I want to design a microwave amplifier that meets the following specifications : gain of 10dB?0.1dB, frequency range of 2kHz to 4GHz, S11 and S22 should be less that -15dB, input/output impedance should be 50Ω. Please, I need help to get a suitable circuit for this design . Thanks
Hello, i'm trying to match the input and the output stage of a VHF pre-amplifier using simulation in ads. When i match the output stage everything is ok but when i try to match the input, the output is no longer matched, the gain drops and the stability factor also drops below unity. I guess there is a interrelation between (...)