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Recent content by Hi-Tone

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    Quadrifilar (6dB coupler) part

    Hello, Thanks a lot for your reply. I've looked at those too, however these are a bit hard to get in Europe. Datasheet and S-parameters are great, but nothing about ordering samples. Would you mind sharing how you received samples of these ? Thanks,
  2. H

    Quadrifilar (6dB coupler) part

    Thanks. Yes, I guess must engineers place 3 wilkinson splitters on the board. I just assumed there must be some of these out there as 3 splitters + y/4 can fill up some space on the board.
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    Quadrifilar (6dB coupler) part

    Hi all, I am looking for a 6dB coupler that can give me 0*, 90*, 180* and 270*. Typically it consists of a 3 wilkinson combiners, however i would like it in 'one' small package, like the Yantel: **broken link removed** Am I wrong about it called a Quadrifilar, because i dont see many...
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    I need to design a 4-port wilkinson power divider with circular SRR using CST

    Re: four port wilkinson power divider with circular srr I agree. I've previously made a 2-stage Wilkinson divider and assembled the SRR very close, without any transmission lines going in/out to the resistor. Because if you do so, you might change the phase going from port 2 to 3 through the...
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    Typical dBi of antenna on little pcb

    Thats what i thought, thanks :)
  6. H

    Typical dBi of antenna on little pcb

    Does anyone know what the typical dBi of the antenna on this little thing is ? Thanks, Steve
  7. H

    print layout in ADS ????

    yeah i hear you. Im sorry, but i don't think there is any help than doing it the way i did it.
  8. H

    print layout in ADS ????

    Alright, thanks for letting me know. I found out another 'trick'. I exported the gerber files and then opened them in a CAD application and then printed it out. Why in earth did the Agilent ADS people remove this function? It doesn't make much sense to me. Anyway, thanks a lot for you help. I...
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    print layout in ADS ????

    I know this post is old, but i have the same issue. When i try and print out my schematic, it size all my transmission lines and what i have designed up into large scale. How do we do this? Please help me.
  10. H

    Quaterwave microstrip miter design help

    I can see a get a lot of views. Can somebody please help?
  11. H

    Quaterwave microstrip miter design help

    Hi Guys, I am having trouble making a quaterwave transmission line on a microstrip when I use my MBEND in ADS. When I test on a straight transmission line I get of cause the correct result. If I try to put in some MBENDS in my schematic I hit the center frequency (3 GHz) smoothly IF the length...
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    RF Power Amplifier 20-2500MHz 20W design question

    BigBoss is absolutely right. It's hard to find a power divider with that range of that frequency. You most likely have to make it yourself with a lot of stages, but it won't be pretty. As tony says, it might be possible to use switches, but then again, I'm not sure if that is allowed in his project.
  13. H

    RF Power Amplifier 20-2500MHz 20W design question

    So there are several options here: 1. Find a decent MMIC within your frequency area and with HIGH P1dB. Then choose two of them to collect the gain you want (your 43 dBm/20W) and design them to be in series. 2. You could find a MMIC with HIGH gain (minimum 25 dBm) and design them in parallel...
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    RF Power Amplifier 20-2500MHz 20W design question

    Gain is not the issue as you can just put several MMIC (GaN/GaAs) in series. Try rather to look for P1dB for 37 dBm and your return loss. Do you have other specifications such as IP3 or NF?
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    [SOLVED] ADS/Momentum Layout component is HUGE!!

    Hi all, I am trying to design a 10 MHz BP filter and I've succeeded in Schematics, so I continued using ADS/Momentum Layout tool to make the layout where I started all over. In the schematics design I used coilcraft 1008 with it's S-parameters, so I downloaded the ADS layout component on...

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