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Recent content by Jack_Swift

  1. J

    HFSS 13 Radiation Efficiency Well over 100%

    Hey ... the only reason you responded with your bullshit answer is to get more points.....stop being a nerd everyday....i bet your on here and facebook all day probably world of warcraft too!! If you don't have a good answer don't respond at all.........papa don't take no mess...ohwwwwwwwwwwww
  2. J

    HFSS 13 Radiation Efficiency Well over 100%

    Yeah dude......some guys are so stupid their middle names should be " dumb_fuck".....and please don't send me some stupid .pdf .....
  3. J

    HFSS 13 Radiation Efficiency Well over 100%

    If anyone else has any other suggestions........I already trying meshing ( lamda/10 @ the first resonant frequency). The S11 has a good resonance ( following -6 dB criteria) @ 700 MHz-800MHz, 2.4-2.5 GHz, 2.8-2.9GHz, and 4.33-4.5GHz, however I believe that these are higher order modes thus very...
  4. J

    HFSS 13 Radiation Efficiency Well over 100%

    ahaahaha......I am not gonna patent that sucka yet, soon when I am done, it is a MIMO antenna project that uses the GCM bands and WLAN, Bluetooth bands. You should read the article you sent me and read what I said......its exactly what I said( regarding how prad is calculated). I am not sure how...
  5. J

    How to locate E field and H field null on patch antenna in Hfss

    You can create a non model object and place it on your antenna where you wanna see your E and H fields .....cut it out from the design( make sure you check the clone button) then plot the E and H fields over it. I done this before to see what mode of propagation I was in. I don't remember...
  6. J

    Current Loop Doubt in Flyback Converter

    Most noise that I usually pick up from the flyback converters I have designed is the dI/dt from the transformer used. Make sure your core is gaped so that you increase the inductance of the core to a few nH. I never had issues with creating a bigger/smaller trace for noise issues; most of the...
  7. J

    Whether I should continue with mechanical engineering or switch to MBA

    I personally think MBA's are for people that want to get away from the engineering lifestyle and see how things turn out. Do not go that route if you just see money in your eyes, do something your really enjoy. Its reminds me of friends who joined the army for the money and girls. Me personally...
  8. J

    why there is 1K resistor after the capacitor? What this resistor called?

    Its a load resistor.......without it the current does not discharge and there is no ripple, think of it as an open-circuit without the resistor, the current has no where to go. You should find a couple good analog books on DC/DC AC/DC converters such as buck, boost, buck-boost, flyback etc. The...
  9. J

    HFSS 13 Radiation Efficiency Well over 100%

    I see there is already a couple of threads about this radiation problem occuring among antenna designers, however, I think my problem was so bizarre that I wanted to open a new thread( most problems I see are right over the 100% line like 101%). I already took an antenna class so I know that...

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