Smith Match Replace L and C with the calculated values and simulate. a. Save the schematic with a new name s_match. b. After changing the names of the two DC blocking capacitors and the AC blocking inductor to C and L, the values are changed to 10pF and 240nH respectively. c. After simulation, notice that the gain remains relatively flat and the leakage S(1,2) is reasonable. However, the input and output impedances are not around 50 ohms. Use the Smith Chart tool to create a simple matching network a. In the current schematic, click the command Design Wizard>Filter and select the Smith Chart Control Window. b. Near the top of the control window, click the panel icon to add a Smith Chart to the schematic. Panel Icon c. In the schematic, insert the Smith Chart matching network components near the amplifier input. d. Return to the Smith Chart Control Window, click the Set Frequency/Impedance button, and set the frequency to 900MHz. And turn off normalization. e. At the bottom right of the window, select the ZL component and input impedance 650+j*184 f. Notice that the load symbol has changed position. Select shunt inductor from the panel, move the cursor and place it on the 50-ohm impedance circle. g. There is a 50-ohm matching network between the load and the source. Move the cursor to the bottom right corner of the window and click each component on the schematic. We will see the inductor and capacitor values, which are approximately L=32nH and C=979fF(1pF) h. Check the response of this network as shown in the figure on the right: i. Click the button at the bottom of the window: Build ADS Circuit. Close all pop-up message boxes. j……
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