Experiment 5 â Coupler Design.

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asshowninFigure18. Figure 18 - Port information. Calculate the port parameters for frequency of 1 GHz. ’Zline’ is the line impedance and thus is the even mode characteristic impedance. 6. Deletetheportanddefine a new port with the same dimension as before. Now, define only two potentials, as shown in Figure 19. 24
Figure 19 - Odd mode definition. 7. Calculate the line impedance again. 8. Compare the CST results to the calculated ones. 4.2.4 Measurement 1. Measure the following S parameters : Input VSWR S 11 , output VSWR S 22 , Coupling S 41 ,DirectivityS 31 −S 41 .Save the data on magnetic media. 4.3 Multi - Section Edge Coupled Line <strong>Coupler</strong> 4.3.1 ADS Simulation 1. Simulate a single section edge coupled line with the dimensions you found in ’Prelab Exercise’ question 3, as shown in Figure 20. 25
Page 1 and 2: Experiment5—CouplerDesign. Dr. H
Page 3 and 4: 3. For a 20 dB three sections edge
Page 5 and 6: Forward wave 1 2 Through wave Sampl
Page 7 and 8: 1+C Z 0e = Z 0 1 − C , (2) r 1
Page 9 and 10: Because of the symmetry of the stru
Page 11 and 12: SSub SSUB SSub1 Er=4.7 Mur=1 B=0.32
Page 13 and 14: Figure 3 - Defining the first strip
Page 15 and 16: Figure5-Pickingthefaceoftheendofthe
Page 17 and 18: 1. Add the curved edge to the first
Page 19 and 20: Figure 11 - Mirroring again the str
Page 21 and 22: 4.2.3 Calculating the Even and Odd
Page 23: Press on the ’Define Pins...’ b
Page 27: 4.4 Final Report Requirements 1. At

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Experiment 5 â Coupler Design.