State Transition Matrix and Floquet Theorem (PPV preliminaries) | Oscillators 10 | MMIC 15

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In this video we introduce the mathematical preliminaries to the Perturbative Projection Vector (PPV) model of oscillators. In particular, we discuss the concept of a state transition matrix and Floquet theorem for periodic systems. Focus is on intuition instead of mathematical rigor and proofs.
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Dear Sir Muppala. I am a PhD student from Morocco, and I am working on designing a wideband antenna for the K band (28 GHz) using the U-slot technique. I came across your video on HFSS optimization using MATLAB, and I am trying to follow the same approach.

Unfortunately, I am encountering an issue with the cost function. After running the optimization successfully, the cost function consistently returns the value -5.0819, and the graph of iterations remains unchanged. I believe there is an issue with how the cost function is being evaluated or how the optimization is progressing.

Could you kindly help me troubleshoot and fix this problem?

Thank you in advance for your time and assistance. I greatly appreciate your help..

It would be preferable if you could provide me with your email contact.

mohammedyahya
welcome to shbcf.ru