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Recent content by venu.gongal

  1. V

    HFSS Solution frequency

    Hi Ferdows Attached is the file Best*.* ---- solution Freq @ 1.57GHz Temp*.* --- Solution Freq @ 10GHz If I change the Solution freq between 1.57 to 10GHz--- I find weird Results... Thanks Venu
  2. V

    HFSS Solution frequency

    Hi Thanks for your replies. I will write down what I have done. I used fast sweep with a solution frequency @ 1.6GHz (in pass band) , convergence achieved (after 11 passes) with lambda refinement 0.33 (default)-- I get expected results perfectly, Now, I increased the solution frequency to...
  3. V

    Basic HFSS help needed - how do I add a wave port to coax?

    The outer conductor should not be placed PEC. HFSS by default consider it as PEC... U can view it in boundary solver display view.. (Outer).. For driven terminal u will get 2 conductors whereas for driven modal only one conductor.
  4. V

    HFSS meshing frequency and a diplexer

    Hi I am facing problems with meshing in HFSS for a waveguide filter design Can u suggest me any document of HFSS inorder to setup the meshing and its convergence.. I can share my file with u ..if required. Thanks Venu
  5. V

    Basic HFSS help needed - how do I add a wave port to coax?

    Check it to see if it is driven modal or driven terminal (it should give 2 conductors)..
  6. V

    Basic HFSS help needed - how do I add a wave port to coax?

    If u have 2 conductors at the point u want to add port ... One conductor is selected as a reference for the wave port .. it is just like + and - terminals of a battery. In the other case of single conductors (Waveguide) there is no reference.
  7. V

    Building a powerful computer for HFSS

    Go through this link https://www.edaboard.com/threads/99013/
  8. V

    HFSS Solution frequency

    Hi I am designing a cavity filter with fo @1600MHz and 50MHz BW in HFSS. So, I setup a solution frequency @1600MHz and the results are slightly different (offset by 50MHz) from what is given in the IEEE paper ("True Inline Cross Coupled cavity Filters "). I am using fast frequency sweep...
  9. V

    designing the filter at X-band

    Wave guide filters gives very low insertion loss.
  10. V

    Need help for ADS layout

    Just subtract the 2 objects created to get ur required DGS..
  11. V

    ADS_momentum simulation impedance matching issue

    Consider the discontinuities in the schematic and a short transmission line, use a t-junction to model the discontinuity in schematic, and use a capacitor model from any of the libraries. Also u can generate ur schematic from layout except the capacitor.
  12. V

    Microstrip to CPW with Ground trace transistion in PCB.

    Hi, I haven't tried. Take a look @ paper below. An Ultra-wideband Microstrip-to-CPW Transition; **broken link removed**
  13. V

    Disturbuted amplifier Design

    A ripple pf @max +/-1dB from 500MHz-10GHz.. is it achievable.. My schematic results obtained shows that its achievable when i do a layout simulation the gain slope falls. Can I reduce the gain @ lower frequencies..? Thanks Venu
  14. V

    Disturbuted amplifier Design

    Hi Can anyone help me how to flat gain from DC-10GHz using Disturbuted amplifiers.. I am able t flat gain from 2GHz-10GHz employing cascode DA architecture.. but how to obtain flat gain from DC-2GHz (there's a roll off..from 15dB to 7dB).. Thanks Venu
  15. V

    How to measure RF loss cable with site master S331D

    u can measure it using power meter..
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