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Diode Detector Notes:

Diode Detector Notes:. You simulate the circuit with 2-port Data element and the capacitor to just find that the data is in and that the circuit is functioning properly. Then you add your detector circuit and simulate to get the graphs and find the Zin.(Add MLOC,

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Diode Detector Notes:

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  1. Diode DetectorNotes: You simulate the circuit with 2-port Data element and the capacitor to just find that the data is in and that the circuit is functioning properly. Then you add your detector circuit and simulate to get the graphs and find the Zin.(Add MLOC, MLIN, MTEE and other blocks like Msub, Zin, S-parameters You add the pads for your diode to be able to solder. You don’t need the pads when you simulate the circuit using the 2-port Data element with measured S- parameters. You need them when you do the layout for milling. Also please refer to the previous tutorial provided on this.

  2. Adding Zin block and MLIN, MLOC and MTEE To make the circuit add MLIN, MTEE, MLOC Also add S parameter and MSub blocks and Zin block to measure Zin To find Zin : Go to Simulation-S_Param and select [S] Zin block

  3. Simulate your Circuit to find Zin Make this circuit, simulate it and look at the output graph. Zin block Assuming that the values to substitute are calculated.

  4. Simulate the circuit and look at the graph(Data Display) Add the rectangular plot. Then select “our_zin” to plot from the Plot Traces & Attributes Click Add

  5. Data Display Select Real part and click ok Again select “our_zin” and click add. Now select Imaginary part and click ok Now click ok in the Plot window

  6. The Zin Plot This plot shows the real and imaginary parts of Zin

  7. Add markers at 2.4 GHz and 2.6 GHz on both the curves This gives us the real and imaginary values of the Zin at both the frequencies. Use these values to design your single stub matching network and also plot on the Smith Chart.

  8. Add your single-stub network to the circuit Remove the Termination and add your single stub and simulate

  9. Data display after simulating Now plot S(1,1) in dB The curve should look like this. You get the matching at the frequency for which you designed your single stub. (2.6GHz) in this case. You should get another curve for 2.4GHz circuit

  10. Replace the 2-port data element with the Diode and artwork Assuming that you know where to find the diode MBEND2 can be found under Tlines_Microstrip

  11. Click on the Layout and then Generate/Update Layout

  12. Click OK on the message

  13. This is the Layout with the Diode To rotate the Layout: Select the entire Layout and then rotate it using the rotate button.

  14. After rotating Ground for extra pin Single Stub Matching Network Read VDC here Cap Space Diode Ground You can also plot without the single stub matching network

  15. Layout without the Diode Remember to put the holes for all the shorts(ground, short ckt., stubs, etc) when you mill the circuit

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