EEE445_hw05sln

# EEE445_hw05sln - 3.19 Design a stripline transmission line...

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3.19 Design a stripline transmission line for a 70 characteristic impedance. The ground plane separation is 0.316 cm, and the dielectric constant of the filling material is 2.20. What is the guide wavelength on this transmission line if the frequency is 3.0 GHz? Solution: B = 0.316 cm = 124.41 mil Using LineCalc, we obtain 58.42 mil 1.48 mm 2.653 in 6.74 cm g W  A screen capture from LineCalc is shown below.

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3.20 Design a microstrip transmission line for a 100 characteristic impedance. The substrate thickness is 0.158 cm, with 20 . 2 r . What is the guide wavelength on this transmission line if the frequency is 4.0 GHz? Solution: H = 0.158 cm = 62.2 mil Using LineCalc, we obtain 55.5 mil 1.41 mm 2.215 in 5.63 cm g W  A screen capture from LineCalc is shown below.
3.21 A 100 microstrip line is printed on a substrate of thickness is 0.0762 cm, with a dielectric constant of 2.2. Ignoring losses and fringing fields, find the shortest length of this line that appears at its input as a capacitor of 5 pF at 2.5 GHz. Repeat for an inductance of 5 nH.

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EEE445_hw05sln - 3.19 Design a stripline transmission line...

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