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7 Threads found on edaboard.com: Waveguide Discontinuity
Hello All, I am new to Electromagnetic simulation; I want to simulate a Differential Microstrip transmission line to know if there is any impedance discontinuity and have some Questions: 1- I am using waveguide ports, is there anyway to add a differential waveguide port? 2- is there a way to cross probe between TDR plot and the (...)
I'm gathering from what you told me that you're simulating some sort of waveguide with a missing section (the discontinuity to which you're referring). Yes, you can set up a pair of waveports on the two ends of your waveguide. You can then de-embed the ports to the edges of the discontinuity, and get the scattering parameters.
well, usually when We speech about wavelength (λ) We mean wavelength of a radiation flowing inside it's proper media. So we speech about λg inside a dielectric. But since λ/4 steps gives often a large enough bandwidth, if You make a mistake and confuse λ and λg and the εr is small enough, the error should be not exc
Dear all I am programing a 2D fdtd code to simulate a straight dielectric slab waveguide. The waveguide extends through the pml to the outer boundary of the fdtd lattice. According to Taflove's book, σ in transverse direction of pml must be normalized to avoid surface charge at the boundaries of the discontinuity. I had tried many way
Hi You can study this book 'field theory of guide wave 'Collins .There are methods in solving uncontinued quesiton. I think the best method is Mode Match ,you should expand the mode in the waveguide. Best Regards ! caocao
It's not OK! This circuit will not work. You need to use waveguide filter with half-wavelength resonators and septum slot coupling. You can find design such filters(without cross-coupling) in the "Matthaei's book".
Hi, Does anyone have a code to calculate the s-parameters of a waveguide discontinuity using mode matching. I have used the following procedure but the solution does not converge: 1. Arrange the modes according to their cutoff. 2. Use certain number of modes in one of the waveguides then find the required number of modes in the (...)