0.75 TO 3 GHz DROP-IN EVEN-HARMONIC MULTIPLIERS
MODEL: FEM3.0, FEM1.5 -L, -H
FEATURES
•
•
•
•
Microstrip “drop-in” package
Integrated output “course” filter
Low-noise Schottky diodes
20 dB fo and 3 fo rejection
APPLICATION
The MITEQ “FEM” series of filter-multipliers are designed for low cost frequency sources where the customer specified
output signal is internally filtered to prevent any other harmonic responses from saturating second-stage amplifiers.
ELECTRICAL SPECIFICATIONS
INPUT PARAMETERS
RF frequency range (FEM1.5)
(FEM3.0)
RF power range
RF VSWR
TRANSFER CHARACTERISTICS
Conversion loss
(FEM1.5-L)
(FEM1.5-L)
(FEM3.0-L)
X2
X4
X2
CONDITION
750 MHz
375 MHz
1500 MHz
1500 MHz
1500 MHz
1500 MHz
+10 input
CONDITION
(-L)
(-H)
CONDITION
UNITS
MHz
MHz
dBm
dBm
Ratio
UNITS
dB
dB
dB
dB
dB
dB
Ratio
UNITS
MHz
MHz
fo ±5%
fo ±10%
Ratio
Ratio
dBm/MHz
MIN.
1400
2800
2.0:1
6.0:1
-114
35
MIN.
MIN.
250
500
+7
+13
2.0:1
TYP.
12
25
13
37
45
55
0.5
TYP.
MAX.
1600
3200
MAX.
14
15
TYP.
MAX.
1000
2000
+10
+16
Isolation
RF in to RF out
RF in to 3 RF out (FEM1.5-L)
RF in to RF out
∆
Input/∆ output power sensitivity (X2 mode)
OUTPUT PARAMETERS
RF frequency range (FEM1.5)
(FEM3.0)
RF VSWR
(FEM1.5)
(FEM3.0)
Noise power (not including source)
99
TYPICAL TEST DATA
FEM3.0-L
OUTPUT VSWR
5:1
4.5:1
4:1
3.5:1
0
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50
3 GHz OUTPUT
HARMONIC REJECTION
3:1
2.5:1
2:1
1.5:1
1:1
2.8 2.85 2.9 2.95 3 3.05 3.1 3.15 3.2 3.25
FREQUENCY (GHz)
POWER (dBm)
VSWR
1
1.5
2
2.5 3 3.5 4 4.5
HARMONIC NUMBER
5
5.5
15
10
OUTPUT POWER OF X2 MULTIPLIER WITH H
AND L TYPE SCHOTTKY DIODES
H
OUTPUT POWER (dBm)
L
0
-5
-10
-15
-20
-25
-30
-35
-40
OUTPUT POWER OF X4 MULTIPLIER WITH H
AND L TYPE SCHOTTKY DIODES
L
H
OUTPUT POWER (dBm)
5
0
-5
-10
-15
-20
-25
-30
-2.5
0
2.5
5
7.5 10 12.5 15 17.5 20 22.5
INPUT POWER (dBm)
-2.5
0
2.5
5
7.5 10 12.5 15 17.5 20 22.5
INPUT POWER (dBm)
MAXIMUM RATINGS
Specifications taken at ............................ +25°C
Operating temperature ............................ -54 to +85°C
Storage temperature ............................... -65 to +125°C
OUTLINE DRAWING
SCHEMATIC
W6 HOUSING
.600
RF
IN
RF
OUT
.320
.078 DIA. HOLE
(TYP. 4 PLACES)
OUT
IN
CIRCUIT BOARD
.045
100
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