RF test 1 spring 2004

RF test 1 spring 2004 - Name SSN EE 40022 Test 1 Spring...

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Name:_______________________________ EE 4002-2 Test # 1 SSN: _______________________ Spring 2004 1. The current flowing in a microstrip line is specified to be:  9 ( ) 0.5cos(9 10 500 ) i t t z = - Amps.  Find the following: a. Phase velocity b. Frequency c. Wavelength 2. Assuming a dielectric is nonmagnetic (μ = μ 0 ), and the phase velocity  through the transmission line using this dielectric is 0.69c, what is the  relative permittivity of the dielectric? 3. We need a parallel plate TL (assume lossless) with a characteristic  impedance of 50  . Find the w/h ratio using a dielectric with  ε r  = 2.1. What  is  ε eff  = for this TL w/h ratio?  
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4. Compute the maximum capacitance available on a dual capacitor  consisting of two equal-size electrodes of 30 mils 2  separated by 5 mils  from a common ground plane through a dielectric medium having a  relative dielectric constant of 8. 5.
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RF test 1 spring 2004 - Name SSN EE 40022 Test 1 Spring...

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