Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Recent content by fousekis

  1. F

    chebyshev fc isnt 3db point?

    thank you for the reply, but he signal itself doesnt know the type of filters we design. I mean, lets say that rejection band starts at the frequency which is equal to the passband ripple. If i actually wanted to attenuate that freq and some others after that, what should i do? Design the...
  2. F

    chebyshev fc isnt 3db point?

    Hello, i simulated a Chebyshev LC low pass filter in ADS with passband ripple=0.5dB At the designed fc, the measure S21 was 0.5dB instead of 3dB Then i simulated an LC low pass filter in ADS with passband ripple=0.1dB At the designed fc, the measure S21 was 0.1dB instead of 3dB But when i use...
  3. F

    momentum question - which substrate layer model to use?

    i know all the substrate parameters, and it seems correct to use sheet conductor. Can you explain what 'thick,expanion up' and 'thick,expansion down' means? are they used to define multilayer substrates?
  4. F

    momentum question - which substrate layer model to use?

    momentum question hello, im trying to model a SI-LPF with momentum, but i dont know which of the substrate layer model (photo in attachement) to use. The substrate is Nelco N9000 if it helps... Thank you
  5. F

    which is the best method?

    hello guys, can you help me to understand pros and cons of ''image method'' vs ''insertion loss method'' for designing a microwave filter? I have found much info about the insertion loss method, but nothing explanatory about the image method.
  6. F

    passband ripple gone when I use nonideal transmission lines

    Re: passband ripple gone the passband ripple exists only when ideal transmission lines are used? :?: :?: :?:
  7. F

    passband ripple gone when I use nonideal transmission lines

    passband ripple gone hello, i'm trying to design a chebyshev SI-LPF in ADS. My problem is that when i use microstrip lines(MLIN) instead of ideal transmission lines, the pass-band ripple vanishes. Instead, the S21 curve gradually decreases until it reaches Fc.... Is this a normal behaviour?
See more

Part and Inventory Search

Back
Top