Figure 2. Output Power versus Input Power

Figure 3. Output Power versus Input Power

Figure 4. Output Power versus Supply Voltage

Figure 5. Output Power versus Supply Voltage

Figure 6. Series Equivalent Input/Output Impedance

80

Pin, INPUT POWER (WATTS)

0

0

4

8

12

16

20

VCC = 13.5 V

Pin = 10 W

VCC, SUPPLY VOLTAGE (VOLTS)

Pin = 14 W

f = 100 MHz

VCC = 28 V

225 MHz

400 MHz

225 MHz

500 MHz

400 MHz

160

Pin, INPUT POWER (WATTS)

0

140

120

100

80

0

510

15

20

25

60

40

20

VCC, SUPPLY VOLTAGE (VOLTS)

10

30

0

70

60

50

40

30

20

10

2

6

10

14

18

160

140

120

100

80

60

40

20

14

18

22

26

12

16

20

24

28

10

30

0

160

140

120

100

80

60

40

20

14

18

22

26

12

16

20

24

28

f = 100 MHz

5 W

7 W

7 W

10 W

f = 225 MHz

f = 400 MHz

Zin

ZOL*

225

VCC = 28 V, Pout = 125 W

f = 100 MHz

450

400

500

400

225

f = 100 MHz

Zo = 20 Ω

500

450

ZOL* = Conjugate of the optimum load impedance

f

MHz

Zin

OHMS

ZOL*

OHMS

100

225

400

450

500

0.72 + j0.44

0.72 + j2.62

3.88 + j5.72

3.84 + j2.8

1.26 + j3.01

9.0 – j6.0

5.2 – j1.8

3.6 + j0.53

3.2 + j1.2

3.0 + j2.0

CAPACITIVE

REACTANCE

COMPONENT (–jX)

INDUCTIVE

REACTANCE

COMPONENT (+jX)

Zin & ZOL* are given

from base–to–base and

collector–to–collector respectively.

3

REV 8