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Does anyone know how to write a 2D FDFD (or FDTD) matlab code for scattering from infinite dielectric slab ? this is supposed to be a simple problem !
I managed to code scattering from finite objects but I cannot make it work for the simplest scattering problem (to compare with analytical...
I am using a FDFD code (written by Dr. Raymond) to solve periodic structures where there is a PML layer on the y-boundaries while x-boundaries are periodic with NO PML. I need to modify this code to fit for aperiodic structures, i.e. to surround the whole domain with PML. Can anyone help me with...
Is there any tool that synthesizes the design of directional couplers such as (rat-race, quadrature hybrid, ... etc) ? You know, find the width, length, ... of each tx segment.
I already know a bunch of tools which do the work for microstrip and coupled lines but not couplers such as wcalc...
Hi, I am trying to extract results from HFSS and export them for Matlab. I simulated a plane wave scattering from a cylinder and managed to plot the surface current on it. Now, I need to export this surface current on a cross section (current on the perimeter) to matlab. Does anyone know how to...
Hello there,
May anyone thankfully recommend a good reference to learn FDFD (finite difference frequency domain) for electromagnetic scattering problems ? I need a reference with matlab code examples (especially for 2D geometries) !
I would also be grateful if any one can send me a basic "1D or...
Hello there,
Please I need help with the following: How to do stb analysis using cdmdprobe for a fully diff. OTA with capacitive feedback. I understand that for unity feedback the input common is defined and equals the output common mode. However, for capacitive feedback the input common mode is...
Hi guys,
I have a few questions. To design a very fast pipeline ADC like this, which topology do you recommend for the MDAC OTA ? Can you give me reasonable specs to start from ? Also if you have any pdf with a similar design, it would be great to attach it here. Thanks
Hello there,
I have a course project where I am supposed to design a pipeline ADC with background digital calibration, actually I am still newbie in ADC world. I guess the first step is to build a system level on simulink. Can you please help me ? I will appreciate if there is an example I can...
Hi everyone,
Is there any way to use gm/id design methodology for switched cap circuits design ? I mean could it be used to design a CMOS switch (in triode region) ? if so then what are the required curves to be generated ? if not then is there any other similar technique that can be used ?
you...
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