Mohamed K. Nezami, Ph.D. RF/Microwave design series:
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https://www.linkedin.com/in/dr-mohamed-nezami-26634b10/
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This design series of videos are on the design and modeling of micro strip antenna array feed network. This feed network involves designing a number of T-Junction dividers, or Wilkinson divider. The divisions are either equal power to all elements, that would imply a uniform illumination of the antenna elements, or tapered un-equal power ratios that implement Taylor or Chebyshev weights to the input signal of every element in the array.
We use Pathwave ADS from Keysight to design T-junctions that implement power distribution among the array elements.