2.8–9.9 GHz FREQUENCY MULTIPLEXER
MODEL: 136466
FEATURES
• High reliability, spaceborne application
• Broadband RF coverage.......... 2.8–9.9 GHz
• RF gain...................................... 23 dB nominal
• Channel-to-channel isolation.. 45 dB minimum
• Input/output VSWR................... 1.5:1 typ., 1.8:1 maximum
• Noise figure ..............................
3.5 dB typ., 4.5 dB maximum
• Low power ................................ 325 mA (5 V) typical
• Lightweight ............................... 520 grams typical
MITEQ’s model 136466 broadband-three output frequency multiplexer precedes the second IF down conversion
stage in a low earth orbit-based millimeter-wave radiometer. In combination with the MITEQ second IF
downconverter, the system provides maximally flat frequency response over the bands of interest, high linearity of
output power to input power, and high isolation between the frequency bands of interest as well as from other
undesirable signals. In addition, this high reliability, spaceborne integrated assembly is optimized for small size, low
power consumption, lightweight, and excellent thermal stability of operation.
ELECTRICAL SPECIFICATIONS
RF INPUT PARAMETERS CONDITION UNITS MIN. TYP. MAX.
Frequency range GHz 2.8 9.9
VSWR Ratio 1.5:1 1.8:1
RF OUTPUT PARAMETERS CONDITION UNITS MIN. TYP. MAX.
Number of RF output channels 3
Channel 2 dB bandwidth MHz 1300
Channel 20 dB rejection bandwidth MHz 2300
Channel center frequencies GHz
3.9449, 5.7085, 9.1168
Nominal gain dB 23
Output power (1 dB compression) dBm -8 -5
Noise figure dB 3.5 4.5
Isolation between output channels dB 45
VSWR Over 1300 MHz passband Ratio 1.5:1 1.8:1
VOLTAGE TO FREQUENCY
OUTPUT PARAMETERS CONDITION UNITS MIN. TYP. MAX.
Number of output channels 4
Channel 3 dB bandwidth MHz 450
Channel 30 dB rejection bandwidth MHz 1000
Channel center frequencies GHz 3.06, 4.76, 7.26, 7.86
Output full scale frequency kHz 90
OTHER PARAMETERS CONDITION UNITS MIN. TYP. MAX.
Digital gain control 4 BIT Binary, TTL; BIT 5 = OFF state dB 0 7.5
Gain control step size dB 0.5
Connectors, RF SMA
Connectors, DC control, 21-pin, micro D
voltage-frequency outputs
Supply voltage Volts ±5
DC power consumption for each At 5 V Supply mA 325
downconverter At -5 V Supply mA 2.5
Weight Grams 520
34
ENVIRONMENTAL CONDITIONS
Operating temperature . . . . . . . . . . 10 to 60°C
Storage temperature . . . . . . . . . . . -25 to +60°C
Vibration . . . . . . . . . . . . . . . . . . . . 6.5 Gs RMS, 20–2000 Hz
Radiation . . . . . . . . . . . . . . . . . . . . 30 krads, total DOSP
2.8–9.9 GHz FREQUENCY MULTIPLEXER (CONT.)
FUNCTIONAL BLOCK DIAGRAMS
250 -
1550 MHz
IF OUT
IF OUT
CAL PORT
CAL SOURCE
MITEQ 136460 DOWNCONVERTER
MITEQ MULTIPLEXER 1-5
ANTENNA
100 -
2500 GHz
1ST LO
5 RECEIVERS
2ND LO
5-19.5 GHz
CW
3-21 GHz
1300 MHz BW
TO DOWNCONVERTER
450 MHz
3–21
GHz
AMP1
VOLTAGE TO
FREQ.CONVERTER
V-F
CHANNEL
B9
OUT
B9
WB6
LSB=0.5dB
LSB=0.5dB
4
WB8
WB7
WB5
AMP1
AMP2
AMP3
AMP4
RF IN
MUX3
B8
OUT
B8
B7
OUT
B7
V-F
V-F
V-F
V-F
4
ATN
ATN
GENERIC SYSTEM MODEL 136466
OUTLINE DRAWING
0.200
[5.08]
0.250
[6.35]
5.125
[130.18]
2.813
[71.45]
0.737
[18.72]
0.555
[14.10]
"SMA" FEMALE CONNECTOR
TYP. (4) PLACES
6.600 [167.64]
5.165 [131.19]
5.040 [128.02]
0.250 [6.35] 2.520 [64.01]
4.915 [124.84]
0.600 [15.24]
0.555
[14.10]
1.184
[30.07]
1.768
[44.91]
2.318
[58.88]
0.125 [3.18]
DIA. THRU.
TYP. (9) PLACES
3.568
[90.63]
0.125
[3.18]
J4
J1
J3
J2
J5
J6
0.125 [3.18]
4.350 [110.49]
6.475 [164.47]
2.350 [59.69]
0.725 [18.42]
0.250 [6.35]
1.975
[50.17]
11 10 9 8 7 6 5 4 3 2 1
21 20 19 18 17 16 15 14 13 12
11 10 9 8 7 6 5 4 3 2 1
21 20 19 18 17 16 15 14 13 12
GENERAL NOTES:
1. Dimensions shown in brackets [ ] are in millimeters.
2. Tolerance as follows: .xx = ±0.01 [.xx = ±0.25], .xxx = ±0.005 [.xxx = ±0.13]
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MODEL 136466 TYPICAL DATA
RF GAIN (dB)
NORMALIZED GAIN (dB)
DETECTED VOLTAGE TO
FREQUENCY OUTPUT (kHz)
DETECTED VOLTAGE TO
FREQUENCY OUTPUT (kHz)
NORMALIZED GAIN (dB)
26
24
22
20
18
16
14
12
10
8
6
4
2
0
-2
-4
-6
-8
-10
-12
-14
0
-3
-6
-9
-12
-15
-18
-21
-24
-27
-30
0
-3
-6
-9
-12
-15
-18
-21
-24
-27
-30
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
3
2.8
2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
2.5 3 4 5 5.5 6 6.5 7 8.5 9 9.5 10 11 11.510.587.54.53.5
2.56 2.66 2.86 3.06 3.16 3.26 3.36 3.46 3.562.962.76 6.76 6.86 7.06 7.26 7.36 7.46 7.56 7.66 7.767.166.96
FREQUENCY (GHz)
1300 MHz RF CHANNELS (AT 25°C)
VSWR IN/OUT
INPUT VSWR
RF INPUT FREQUENCY (GHz) RF INPUT FREQUENCY (GHz)
7.36 7.46 7.66 7.86 7.96 8.06 8.16 8.26 8.367.767.56
RF INPUT FREQUENCY (GHz)
4.26 4.36 4.56 4.76 4.86 4.96 5.06 5.16 5.264.664.46
RF INPUT FREQUENCY (GHz)
DETECTED VOLTAGE TO
FREQUENCY OUTPUT (kHz)
NORMALIZED GAIN (dB)
0
-3
-6
-9
-12
-15
-18
-21
-24
-27
-30
NORMALIZED GAIN (dB)
0
-3
-6
-9
-12
-15
-18
-21
-24
-27
-30
100
90
80
70
60
50
40
30
20
10
0
DETECTED VOLTAGE TO
FREQUENCY OUTPUT (kHz)
100
90
80
70
60
50
40
30
20
10
0
450 MHz DETECTED VOLTAGE TO FREQUENCY OUTPUTS (AT 25°C).
36
