Recent content by Microgravity

Ehm... are you sure? 296=37*8 (exactly). Thus: \sqrt{ \frac{L}{C} } = \sqrt{ \frac{ 8*10^{-7} }{ 296*10^{-12} } } = \sqrt{ \frac{10^5}{37} } \approx 51,9875 I'm aware that low attenuation approximation is pretty good (when it holds), but it can't be that good! :smile: P.S. Strictly...

Don't worry, it is not the worst of what I saw. You can hardly imagine interpreting an equation where n indicates a real number and \varepsilon was an integer (without anyone telling you, obviously). See edit. EDIT: "LC Region" - is that, perhaps, the Constant-Loss Region? I'm afraid I did miss...

I did thought of that possibility, but I was not sure of it. Let me explain: rifleman_d should have specified the precise definition of Z_c. If (big "if") you define: Z_c \triangleq |Z_0| (which is a bit misleading), then everything is fine (but see below). If, however, you simply state...

Wait a moment, why are you assuming that G is equal to zero? In fact, if you assume G \neq 0, then you can easily prove that you don't necessary need R to be a complex number for Z_0 to be real. Let R+j\omega L \triangleq \rho_1 e^{j \varphi_1} and G + j\omega C \triangleq \rho_2 e^{j...

Hi there! It seems to me that you do not have a solid background in Transmission Line (TL) Theory. I don't know exactly where to begin, since you made some imprecise statements and are probably walking the wrong path. Saying that "the resistance will be frequency dependent" is misleading: you...

I'm afraid to say that the title is a bit misleading, since your actual problem is finding the resonance frequency of an ideal circuit for which you have the expression of H(j \omega). The fact that you started with a non-ideal inductor, a non-ideal capacitor or "non-ideal anything" (for that...

You mean "causal", right? Yes, it may be thought as such (theoretically). Thanks!

In doing the conversion, I took \textbf{V}_{ab} (and only this) as a reference, since this is the standard notation. The rest of the formula is simply a direct application of the properties of the abc sequence. Let me clarify: this is just for theoretical convenience, it does not mean that, in...

I read the whole tutorial: it tries to keep things simple, which is a good (since it is just an introductory tutorial), but I think this may lead to some inconsistencies if you aren't careful. However, I noted a slightly abused notation; thus, let me restate things a bit. Given the following...

I think you are making it harder than it really is :) First of all, from your language ("line/phase voltage, line/phase currents"), I assume you are talking about Three-phase Circuits. In three-phase circuits, there are some differences with respect to a simple Δ-Y conversion (you should have...

Thanks for the fast reply! First of all, I know how a spectrum analyzer works and I am very familiar with super-heterodyne principles, including things such as: IF, LO, RBW (Resolution BandWidth), VBW (Video BandWidth), etc. I will address the RBW issue later. I think mfb pointed out the...

If I posted in the wrong section, please feel free to move the thread in the correct one. Since this is my first post in the forum, I have yet to get a good grasp of it. With that said, let's begin! Prologue: SNR (Signal to Noise Ratio), sometimes indicated with S/N, is a very important...