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Recent content by ElectLect

  1. ElectLect

    Dielectric material at ~GHz

    Thanks all for the feedback so far. This question has been moved to the Microwave engineering Forum, since it may need more specialist knowledge of material in microwave environments.
  2. ElectLect

    Insulating and structural materials at ~GHz

    This is a duplicate of a question asked on the Other Topics forum: What is the best insulating material to use at these frequencies? I'm thinking about a material to bind copper wire strands together. Ideally the material should have good mechanical properties, as well as no UHF heating (or...
  3. ElectLect

    Dielectric material at ~GHz

    Yes that was my thought too, Logbook! Interesting about the glass, I'll look into that further.
  4. ElectLect

    Superconductors?

    Thanks PeeBee. I've come across these in my literature search. The motor one in particular is quite interesting. These are the main propeller motors for the ship. There seems to be a break point when superconductors are more applicable than copper.
  5. ElectLect

    Superconductors?

    Thanks Logbook and Slagenthor. Extremely useful information, as I have come to expect on this forum.
  6. ElectLect

    Dielectric material at ~GHz

    Apologies, I was being rather loose in my terminology. I meant to say for the purposes of insulation at high voltages and frequencies.
  7. ElectLect

    Dielectric material at ~GHz

    This forum has already been very helpful in refining my ideas. I have another question about an application involving high power em fields at between 1 to 2.5GHz: What is the best dielectric to use at these frequencies? I'm thinking about a material to bind copper wire strands together (may...
  8. ElectLect

    Superconductors?

    Thanks for the info on Litz, Logbook. I may now have a solution to the skin effect, but need to do some calcs/simulations. Any other useful ideas? I'm also interested in material current density. I have always assumed that non-cooled copper can handle about 10A/mm2, is this about right? Likely...
  9. ElectLect

    Help with 2.45GHz high power application.

    Some good pointers Higgler. Thanks
  10. ElectLect

    Superconductors?

    Again, thanks guys. I am actually considering litz wire. I'm not sure what weave I should go for, for the frequencies of interest to me (~1GHz, maybe 2.45GHz). Likely I would need to have something made up especially, but couldn't find much design information on Google. It needs to have very...
  11. ElectLect

    Superconductors?

    Thanks for the info so far guys. Maybe I should look more closely at LTS as well. What method of cooling is normal? Hmmm, not really skogsgurra. As I understand it the skin effect limits the depth of usefull conductor. A bundle of thin wires will allow only the outer ones to conduct...
  12. ElectLect

    Help with 2.45GHz high power application.

    Simulation of fields in a cavity is a good summation. The ability to, say, predict interaction of an aerial with the cavity while simulating skin effect would also be useful. At this point I'm assuming (perhaps falsely) that I won't have to simulate the generator and feedlines. Smith chart...
  13. ElectLect

    Superconductors?

    What is state of the art in superconductor technology? Are there any recommended suppliers of the stuff, or is it still at the Witch's brew stage? Recommended links will do fine. I'm interested in a high power, high frequency, application. At this stage I am as interested in evaluating it's...
  14. ElectLect

    Help needed to design ~1Ghz high power Oscillator.

    Thanks BrianR, you really are helping me to think this thing through...
  15. ElectLect

    Help with 2.45GHz high power application.

    Thanks for the info IMMG. Are there any codes you recommend particularly? Again cash is tight so just something for an initial looksee will do me. Thanks for the ideas GOTWW. Sorry I can't say more about my application. May be subject to intellectual property rights, and is likely to generate a...
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