Recent content by monchosoad

  1. M

    This Fourier Transfer Function properties?.

    Hi Everyone. I want to know what do you think about this Transfer function: T(\omega) = \frac{e^{i\omega\tau}}{1-\rho e^{i2\omega\tau}} If\tau is Real, this function is "good and pretty"(?), because it has a "nice" representation in time with its inverse transform: a delay plus a series of...
  2. M

    Pinch-Off and Saturation Of MOSFET

    Hi. Change the point of view of the voltages. Instead VDS, analyze VGD. So, you have VGS, VGD (so VDS = VD - VS = VGS - VGD). Think about this: A MOS transistor is, in principle, purely simmetryc. (look into the schematic, you can switch S with D). If VGS > vt, and VGD > vt , (then VDS =...
  3. M

    Low-Pass Filtering a system, Time constant issue

    I don't understand why do you need a LPF to do that (i mean, you "can't" do that). If you have a digital signal (the indata sampled at 20hz) just take the important data and throw away the transients. Or you can use a cyclic prefix technique or something like that. Now, if you need to design a...
  4. M

    Theory of BiQuad Antenna Design (now a digital TV channel question)

    Hi everyone, I'm Designing a BiQuad antenna for WiFi applications. The design and optimization are relatively simple but i need some references of the theory behind this antenna. I'm reading some theory of Bi-Conic Antennas but it's a bit difficult to extrapolate the idea between both...
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