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Q10: Design a 3dB Lange coupler for operation at 5GHz. If the coupler is to be fabricated in microstrip on an alumina substrate with

Q10: Design a 3dB Lange coupler for operation at 5GHz. If the coupler is to be fabricated in microstrip on an alumina substrate with effective dielectric constant of 10, and thickness of 1mm, compute Zoe, and Zoo for the two adjacent lines, and find the necessary spacing and widths of the lines.

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