5 TO 20 GHz DOUBLE-BALANCED MIXER
MODELS: DM0520LW1, DM0818LW1
FEATURES
• RF/LO coverage ......... 5 to 20 GHz
• IF operation ............... DC to 8 GHz
• LO power range ......... +7 to +13 dBm
• Conversion loss .......... 5 dB typical
• LO-to-RF isolation ....... 35 dB typical
MITEQ’s DM0520 series of mixers is constructed using double-tuned microstrip RF and LO baluns with a DC-
coupled IF structure. The construction, coupled with the hermetic packaging, provides for high inherent relia-
bility and isolation over an extremely broad frequency range. This device performs as an up- or downconvert-
er covering most EW bands and communication applications. This mixer is also available with high forward
voltage diodes (H) yielding proportional changes in LO power and spurious performance.
ELECTRICAL SPECIFICATIONS
INPUT PARAMETERS
RF frequency range
RF VSWR (RF = -10 dBm, LO = +10 dBm)
LO frequency range
LO power range
LO VSWR (RF = off, LO = +10 dBm)
5 to 20 GHz
8 to 18 GHz
CONDITION
5 to 20 GHz
8 to 18 GHz
5 to 20 GHz
8 to 18 GHz
8 to 18 GHz
DC to 8 GHz
LO = +10 dBm
LO = +13 dBm
CONDITION
3 dB bandwidth
5 to 20 GHz
8 to 18 GHz
CONDITION
UNITS
GHz
Ratio
Ratio
GHz
dBm
Ratio
Ratio
UNITS
dB
dB
dB
dB
dB
dB
dBm
dBm
UNITS
GHz
Ratio
MIN.
DC
2:1
30
20
20
35
25
40
0
+10
TYP.
MAX.
7
MIN.
5
+7
+10
3.5:1
3:1
TYP.
6
5
MAX.
9
7
9
MIN.
5
2:1
1.5:1
20
+13
TYP.
MAX.
20
TRANSFER CHARACTERISTICS
Conversion loss (IF = 100 MHz, LO = +10 dBm)
Single-sideband noise figure
Isolation – LO to RF
Isolation – LO to IF
Isolation – IF to RF
Input power at 1 dB compression
Input two-tone third-order intercept point
OUTPUT PARAMETERS
IF frequency range
IF VSWR (IF = -10 dBm, LO = +10 dBm)
51
DM0520LW1 TYPICAL TEST DATA
VSWR
(FIXED 12.5 GHz), (LO = +10 dBm)
6:1
5:1
VSWR (RATIO)
ISOLATION (dB)
4:1
LO
ISOLATION
0
20
40
20
40
60
5
LO TO RF
LO TO IF
8
11
IF TO RF
14
17
20
3:1
2:1
1:1
RF
5
8
11
14
FREQUENCY (GHz)
17
20
0
2
4
6
FREQUENCY (GHz)
8
10
CONVERSION LOSS (IF = 100 MHz)
IF RESPONSE (WITH 5 AND 20 GHz FIXED LO)
(LO = +10 dBm)
0
CONVERSION LOSS (dB)
2
4
6
8
10
CONVERSION LOSS
LO = 5 GHz
LO = 20 GHz
0
2
4
6
8
10
SINGLE-TONE (m) RF x (n) LO RELATIVE SPUR LEVEL (dBc)
(AVERAGE MIDBAND RF, LO, IF FREQUENCIES,
RF = -10 dBm, LO = +10 dBm)
SPUR
(m) RF x (n) LO
1
1
1
2
2
2
3
3
3
x
x
x
x
x
x
x
x
x
1
2
3
1
2
3
1
2
3
RF TEST
FREQ. (GHz)
11
14.4
16.4
9
12
15.5
7.33
8
10.66
LO TEST
FREQ. (GHz)
15
9.2
6.8
14
14
9
18
10
12
SPUR
LEVEL (dBc)
0
-38
-13
-50
-55
-46
-56
-55
-50
IF RESPONSE (dB)
5
8
11
14
FREQUENCY (GHz)
17
20
MAXIMUM RATINGS
Specifications taken at .......................... +25°C
Operating temperature .......................... -54 to +85°C
Storage temperature ............................ -65 to +125°C
AVAILABLE OPTION
High dynamic range option
H (LO = +20 dBm), (conversion loss = 9.5 dB max.)
OUTLINE DRAWING
.560
.160
.240
.042
.260
.520
.436
LO IN
RF IN
.067 DIA. THRU
MOUNTING HOLES (4 PLACES)
.280
.280
IF OUT (TYPE SMA FIELD REPLACEABLE
FEMALE CONNECTOR)
.290
.100
.195
.38 TYP.
OPTIONAL SPACER PLATE
52
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