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Recent content by andy_larkeen

  1. A

    Problems of hfss simulation and measurement

    You have the array with 256 units and you wouldn't do a simulation with a proper convergance. Could you show a profile of convergence? What is the difference between simulated and measuered reflection coefficient? Did you simulate the array with loss of substrate and conductor?
  2. A

    Problems of hfss simulation and measurement

    First Of All, there is no specified number of iteration for antenna and anything else...... You should observe the mesh and convergence for particular device. Whats more, if you obtain a value below 0.02 it wouldn't mean a proper result. In setup options there is possibility to enforce "Minimum...
  3. A

    Band Pass Filter with very low IL, sharp rejection and small size.

    May I ask for what you need such a filter? Honestly it can be a challange to design a filter with your specification and it won't take a day or two to do it. For such low insertion loss I recommended a Substrate Integrated Waveguide Technology (SIW) with quarter miniaturization. To manufacture a...
  4. A

    Problems of hfss simulation and measurement

    You have answered your question. If solver didn't converge (0.02) I suggest increase the number of iteration. If your computer can't handle with project, put it here and I'm gonna simulate it for you.
  5. A

    ErrorHFSS: A radiation boundary face has solid objects with SolveInside on both sides

    Lathas, attach a file would be a good idea.
  6. A

    HFSS:Intel i7 2600, HyperThreading dosen't work......

    Virtualization? Is it HFSS option or BIOS setting?
  7. A

    HFSS:Intel i7 2600, HyperThreading dosen't work......

    Hi everyone, Here is my computer conf: MB Name: Gigabyte Technology Co., Ltd.Z68MA-D2H-B3 BIOS version: Z68MA-D2H-B3 F3 CPU Name: Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz Memory information: Total physical memory 16300 MB OS information: Microsoft Windows XP 64 Bit version I try to...
  8. A

    HFSS-air box size, wavelenth or something else?

    For what from the bottom? There is gruond plane. We should specifed about what kind of circuit it is? It is not antenna. It is SIW.
  9. A

    HFSS-air box size, wavelenth or something else?

    So, you suggested that for 5Ghz I should use 30mm(lambda/2) height of airbox?
  10. A

    HFSS-air box size, wavelenth or something else?

    It dosen't matter what kind of layout you create? Do you alwayes use radiating conditions for all box? I make top of box: Finite Conductivite and rest is Perfect E to simulate metalic box. SIW In my opinion in my solution mesh is quite big with compare to rest of layout. But, with bigger...
  11. A

    How to define substrate layers of stacked patch in ADS momentum !!

    In my opinion:
  12. A

    HFSS-air box size, wavelenth or something else?

    Hello I wonder how size of air box influences on results. How you choose airbox demiension? e.g. I have filter with center frequency 5Ghz, my air box height is 5mm. Width and length is the same like substrate size, is it ok? Substrate height is 0.5mm. best regards andy
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