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Recent content by hozaifa

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    TLK106 PHY circuit not working, but can initiate the link.

    Hi, I did my first PCBA with Ethernet interface using TLK106 RMII, I followed all suggestion for schematic and layout except the serial termination resistors( I used 10 ohm instead of 33 ohm as suggested by the TI) between the PHY and MAC , it can start well by initializing the PHY, I can write...
  2. H

    adding extra resonance to microstrip monopole antenna

    hi, I have this dual band antenna at 2.44 GHz and 5.6 GHz, I want to add two more resonances to it at 6 GHz and 6.8 GHz, without affecting other resonances...is there any optimal way..? how and where to do that....??any paper or technical reference ?
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    Monopole antenna over very small ground plane return loss improvement..

    Hi, I need little help here, I am simulating this dual band antenna from a reference paper, I have attached the original design return loss with ground plane of 200*150 mm, and the antenna itself is 9x6 mm. my job is to attach this antenna to 19x12 mm ground plane and add two more resonances to...
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    Antenna Current distribution and S11 problem in HFSS

    hi, thanks for your feedback, plot scales were same in all cases, if you meant that
  5. H

    Antenna Current distribution and S11 problem in HFSS

    Hi, there.. I am trying to simulate dual band antenna from a paper, I get around 90% similar S11, little shift on resonances and also different S11 levels, antenna is working in 2.44 GHz and 5.6 GHz bands, for both bands I get good match radiation pattern and radiation efficiency... the problem...
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    My HFSS simulation is always different than what is in the reference paper.!!!

    hi guys, I really need help in HFSS here, I totally wasted my last two weeks of my life trying to fix it, I am doing my master thesis about wifi 6E tri band antenna, I have started by simulating ready design from papers, but always get wrong or not same s11 curves, I have checked all things 1-...
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    Chip antenna integration on a PCB

    Hi, I am working on a project to integrate a triple band chip antenna for wifi 6E to a wifi module. antenna is working on 2.4Ghz, 5.5 Ghz and 6.8 Ghz bands, is there any paper or reference of how I could do that and how to re-tune the antenna after integration, what problem I will face and how...

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