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Hi,
I had purchased from aliexpress some simcom sim908 modules, they had firmware version installed 1137B04SIM908M64_ST.
Could anyone help me with finding this version firmware, or if it is possible - give tips how to get firmware image from chip?
Thanks!
Solve tab (it is located in one row with File/Edit/View etc) - there you have to set correct units, background material, frequency & boundary conditions. Also mesh tab -> global mesh properties allows you to edit mesh cell amount for your model, it is critical to have high mesh cell amount in...
Hi,
Could anyone, who has the book "Microstrip Filters for RF/Microwave Applications" by JIA-SHENG HONG & M. J. LANCASTER
Explain me formula #5.2 & table #5.1 in this book? I can't understand, why guided wavelength λgc and λgl differs from λg0. What formulas is used to calculate guided...
Thanks for answers! I hope this will not have any big influence on measurements in case device under test will be connected through coax cables>SMA>short microstrip lines
Is there a lower cutoff frequency for microstrip lines, similarly as waveguides do have? Can they still be viewed as transmission lines with characteristic impedance Z0, at such low frequency?
Hi!
Try wiki, there is pretty good info about s-parameters! Scattering parameters - Wikipedia, the free encyclopedia
S params. describe incident and output waves. S11 describes reflection from system to the source, S22 describes reflection from load back to system, S21 - system gain...
Hi!
I would like to ask this to be sure.
Is this correct, that I am able to use LMX2347 for scaling frequency by using Fin & Finb pins as input and LD pin as output, with appropriate programming this IC?
datasheet: LMX2347 Datasheet catalog
thanks for answering! :)
Hi
I am not sure you can define resistance of material as a function.
You could attempt to make such profile from a several blocks with different resistances connected together, this could give a good approximation.
Tim
I am having same problem with results difference when comparing genesys momentumGX results with CST MWS results.
I suppose this is because of meshing types used in momentum and CST (hexahedral mesh type) are different. In my case, I simulate coupled microstrip filter in a hairpin topology, with...
Got this problem resolved by simply redrawing topology to the CST by myself.
Still, you can test circuit made in genesys with CST trough export/import as gerber or dxf, but this method does not allow you to make any modifications, when structure is imported into CST.
Hi everyone!
I have coupled microstrip filter, designed in Genesys. PCB i'm designing it for will be covered with EM shielding, and I have to simulate filter with shielding, to be sure it will work.
So the question is - can someone tell, what is the best way to import design from Genesys to...
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