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Alfred

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About Alfred

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  1. Thanks a lot ya.
  2. Is it constant phi 0 degree for H-field and 90 degree for E-field?
  3. Kindly help me to determine which one is E-field and which one H-field. Thank you. combine.docx
  4. The concern is after the SMA connector is added, the gain of the antenna become positive or not. So the gain improve to positive? Thank you.
  5. I am using RoHs 5265757 SMA connector. Although the 2.3GHz impedance is nearly matched, nut the gain is still negative. TT.
  6. Mean I can use this 2.3GHz result to replace 2.6GHz for LTE applications? Thank you.
  7. This result okay?
  8. Can antenna operate at 2.3GHz for LTE besides 1.8GHz and 2.6GHz?
  9. Why it is so hard to match the impedance? Gave up.
  10. Really appreciate your help. Thanks a lot.
  11. Any other ways to match the 2.6GHz impedance? TT Haiz I have tried every single method that I know but still cannot match the impedance without affecting the 5.0GHz antenna.
  12. Hi, there are some differences between your simulation and my simulation. Any reason? Attached with my result and simulation file. From my result, everything is okay except the imaginary part and gain of the 2.6GHz antenna. 33333.cst
  13. Ammend patch and feed length do not help. Please help me. Thank you.
  14. Need to make the imaginary -20.34 become 0 and the VSWR near to 1. How? TT Thank you.
  15. Almost done. Left the 2.6GHz impedance not match. Need to eliminate the imaginary part. How? Please advice. Please feel free to edit the design for me. Thank you. 33333.cst