How to find the topology for determining coupling matrix for a low pass filter with transmission zeros at finite frequencies?

I have an elliptic low pass filter of order 5. it gives three transmission zeros at finite frequencies. i want to arrive at the coupling matrix for this filter. how to determine the topology for...

01 February 2018 1,888 6 View

How to optimize the coupling matrix of a bandstop filter?

Thanks in advance

10 November 2017 7,203 0 View

Bandstop coupling matrix synthesis?

how to annihilate an element, Mik in coupling matrix by using similarity transform when there is no common node j to both i and k. How to take the rotation angle for annihilating this element? the...

10 November 2017 2,868 0 View

How to find the transmission zeros from s parameter characteristics?

06 July 2016 516 0 View

Implementation of PML to microstrip line with FDTD?

while applying FDTD to a microstrip line , how to do with PML conditions. how to consider with equations at the edges of the strip? in sullivan , g(i,j,k)1..2..3 are considered for the normal...

03 April 2016 1,843 1 View

How to correct the error in surf command in matlab?

i am getting the following when i run a matlab code: Error using surf (line 57)While setting the 'ZData' property of Surface:Value must be a scalar, vector or array of numeric type can anybody...

03 April 2016 6,448 3 View

Is anybody working in the area of method of lines computational method to analyse waveguiding structures?

Computational Electromagnetics

31 December 2015 3,889 6 View

Does anybody have idea of how to model any electromagnetic wave guiding structures?

conditions to be considered for modeling a wave guiding structures, how to write matlab codes for modeling, assumptions to be considered for modeling an electromagnetic wave guiding structure

11 December 2015 7,646 0 View

Is it possible to do piezoelectric coupling in ANSYS-APDL or COMSOL between tapered substrate and rectangular piezoelectric patch?

How to do Piezoelectric coupling in ANSYS-APDL or COMSOL between tapered substrate and rectangular piezoelectric patch? Piezoelectric coupling between the rectangular substrate and rectangular...

02 March 2021 9,833 3 View

How to classify strictly upper triangular matrices by similarity?

Let F be a field. Consider U, the set of n times n strictly upper triangular matrices in F. For X, Y in U, we call them similar if there exists some S, which is non-degenerate and upper...

01 March 2021 2,957 8 View

How to perform statistical analysis of coefficients extracted from transform techniques?

I am studying the potential of DCT and FFT coefficients extracted from a signal to classify the different objects that emit the signal. I applied the Shapiro-Wilk to confirm that data was not...

01 March 2021 8,079 2 View

Is CD44 degraded in lysosome together with hyaluronan after CD44 mediated endocytosis of hyaluronic acid?

Also when RHAMM binds hyaluronic acid, they get internalized, will RHAMM also be degraded? Or both CD44 and RHAMM will be transferred back to the cell membrane? Asking for breast cancer cell line...

01 March 2021 8,169 2 View

Why is the sum of the elements in a row in a Q matrix equal to zero?

When explaining substitution models, the substitutions are expressed as Q matrix. Why is the sum of the elements in a row zero?

28 February 2021 3,864 3 View

Distribution of particles in metal matrix?

How would define the "good" and "poor" distribution of particles within the matrix. Is there a quantitative solution to assess the distribution of the particles, which then having denotation of...

28 February 2021 7,397 8 View

How to find a correlation between coordinates in a curvilinear coordinate system?

Hello. I have a skewed elliptical coordinate system (I use alternative elliptical coordinates). And I need to determine connections between coordinates in order to fetch a covariance matrix of...

28 February 2021 364 3 View

For modelling epoxy-based matrices (in composites), which model in ABAQUS is the most suitable, Concrete damaged plasticity or Drucker-Prager model?

I am working on developing a micromechanical FE model for predicting kink-band formation in UD composites. To model matrix plasticity, which model, out of Concrete Damaged Plasticity and...

28 February 2021 5,415 1 View

What are the methods used for CNT..?

Respected Professor's i hope you are doing well and happy. i need some information about carbon Nanotubes. before blending the CNT with the matrix the CNT has been introducing in some treatments....

24 February 2021 5,383 5 View

How can I generate random samples from Bingham distribution in R? How can I construct those symmetric matrices?

in the function rbingham(n,A) in R software how can I construct that A (symmetric) matrix?

24 February 2021 3,528 3 View