Small Signal Microwave Amplifier Design

6.9: Problems

6.9 Problems

6.1

Find the source stability circle for the NE76000 shown in Table 6-1 at 4 GHz.

6.2

Find the source and load stability circles for the NE76000 shown in Table 6-1 at 8 GHz.

6.3

Find the source and load stability circles for the NE76000 shown in Table 6-1 at 4 GHz.

6.4

Find the stability factor K of the Mitsubishi MGF1403 at 6 GHz where the S-parameters are S 11 = .933@ 108.3 S 21 = 1.928@72.3 S 12 = .046@15.5 S 22 = .724@ 81.6 .

6.5

Find the stability factor K and the stability circles of the Toshiba S8818 at 4 GHz where the S-parameters are S 11 = .92@ 69 S 21 = 2.34@112 S 12 = .047@43 S 22 = .63@ 52 .

6.6

Find the conjugate source and load match circle for the NE76000 shown in Table 6-1 at 14 GHz if it exists.

6.7

Find the conjugate match and maximum gain for the NEC 76000 shown in Table 6-1 at 8 GHz if it exists.

6.8

Find the maximum stable gain for the transistors in Problems 6.5 and 6.6.

6.9

Calculate the five power gains in a 50 ohm system as shown in Example 6.5 using a source impedance of 75 ohm and a 50 ohm load.

6.10

Calculate the four power gains as illustrated in Example 6.5 using a source impedance of 40 j20 ohm...

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