50 OHM APPLICATION CIRCUIT: 300--3600 MHz
V SUPPLY
R1
L1
C3
C4
RF
INPUT
Z1
Z2
DUT
Z3
Z4
Z5
RF
OUTPUT
C1
V CC
C2
Z1, Z5
Z2
Z3
0.347 ″ x 0.058 ″ Microstrip
0.575 ″ x 0.058 ″ Microstrip
0.172 ″ x 0.058 ″ Microstrip
Z4
PCB
0.403 ″ x 0.058 ″ Microstrip
Getek Grade ML200C, 0.031 ″ , ε r = 4.1
Figure 17. 50 Ohm Test Circuit Schematic
30
20
S21
R1
10
0
S22
C1
L1
C4
C3
C2
--10
--20
--30
--40
300
V CC = 5 Vdc
800
1300
1800
S11
2300
2800
3300
3800
MMG30XX
Rev 2
f, FREQUENCY (MHz)
Figure 18. S21, S11 and S22 versus Frequency
Figure 19. 50 Ohm Test Circuit Component Layout
Table 9. 50 Ohm Test Circuit Component Designations and Values
C1, C2
C3
C4
L1
R1
Part
Description
150 pF Chip Capacitors
0.1 μ F Chip Capacitor
1 μ F Chip Capacitor
56 nH Chip Inductor
0 ? Chip Resistor
Part Number
C0603C104J5RAC
C0603C105J5RAC
C0603C105J5RAC
HK160856NJ--T
ERJ3GEY0R00V
Manufacturer
Kemet
Kemet
Kemet
Taiyo Yuden
Panasonic
MMG3H21NT1
RF Device Data
Freescale Semiconductor, Inc.
7
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