8

RF Device Data

NXP Semiconductors

AFM907N

350–520 MHz BROADBAND REFERENCE CIRCUIT

f = 350 MHz

f = 520 MHz

f = 520 MHz

f = 350 MHz

f

MHz

Ω

Ω

350

1.9 + j1.6

3.1 -- j0.7

360

2.0 + j1.9

3.2 -- j0.6

370

2.0 + j2.0

3.2 -- j0.5

380

2.1 + j2.2

3.3 -- j0.5

390

2.2 + j2.4

3.3 -- j0.5

400

2.3 + j2.6

3.2 -- j0.5

410

2.3 + j2.7

3.2 -- j0.5

420

2.4 + j2.8

3.1 -- j0.6

430

2.5 + j2.9

3.0 -- j0.6

440

2.6 + j3.0

2.8 -- j0.6

450

2.7 + j3.1

2.7 -- j0.6

460

2.7 + j3.2

2.5 -- j0.6

470

2.8 + j3.2

2.3 -- j0.5

480

2.9 + j3.3

2.1 -- j0.5

490

3.0 + j3.4

2.0 -- j0.4

500

3.0 + j3.4

1.8 -- j0.3

510

3.1 + j3.5

1.7 -- j0.1

520

3.2 + j3.5

1.5 + j0.04

gate to ground.

= Test circuit impedance as measured from

drain to ground.

Figure 8. Broadband Series Equivalent Source and Load Impedance — 350–520 MHz

Input

Matching

Network

Device

Under

Test

Output

Matching

Network

50 Ω

50 Ω