12 TO 18 GHz IMAGE REJECTION OR I/Q MIXERS
MODELS: IRM1218LC2A, IRM1218LC2B, IRM1218LC2C AND
IRM1218LC2Q
FEATURES
• RF/LO coverage ....................... 12 to 18 GHz
• IF operation .............................. DC to 0.5 GHz
• Conversion loss ....................... 8 dB typical
• Image rejection......................... 20 dB typical
ELECTRICAL SPECIFICATIONS
INPUT PARAMETERS
RF
RF
LO
LO
frequency range
VSWR (RF = -10 dBm)
frequency range
power range
CONDITION
UNITS
MIN.
GHz
Ratio
GHz
dBm
dBm
dBm
Ratio
12
IRM1218LC2
IRM1218MC2
IRM1218HC2
LO VSWR
TRANSFER CHARACTERISTICS
Conversion loss (Note 1)
CONDITION
UNITS
RF > LO
IRM1218LC2Q
dBm
dB
Single-sideband noise figure
Image rejection (Note 1)
12
+10
+13
+17
MIN.
+12
+15
+18
2.5:1
MAX.
8
11
10
13
10
20
LO-to-RF isolation
dB
20
23
LO-to-IF isolation
dB
20
Input power at 1 dB compression
IRM1218LC2
IRM1218MC2
IRM1218HC2
dBm
dBm
dBm
+6
+10
+15
Input two-tone third-order intercept point
IRM1218LC2
IRM1218MC2
IRM1218HC2
dBm
dBm
dBm
+16
+20
+25
IRM1218LC2Q
dB
Phase balance
IRM1218LC2Q
Degree
OUTPUT PARAMETERS
IF frequency (image rejection mode)
IF frequency (QIFM, I/Q demodulator)
IF VSWR (IF = -10 dBm)
IRM1218LC2Q
CONDITION
IRM1218LC2A
IRM1218LC2B
IRM1218LC2C
IRM1218LC2Q
18
+13
+16
+20
TYP.
18
Truth table
27
18
dB
Amplitude balance
MAX.
2:1
dB
RF < LO
TYP.
±1.5
±15
PORT
RF > LO
RF < LO
I
0
-90
Q
-90
0
UNITS
MHz
MHz
MHz
MIN.
20
40
100
TYP.
MAX.
40
80
200
MHz
DC
Ratio
500
1.5:1
IRM1218LC2A TYPICAL TEST DATA
VSWR
(LO = +10 dBm)
IMAGE REJECTION/CONVERSION LOSS
(LO = +10 dBm)(IF = 30 MHz)
0
LO
3:1
RF
2:1
AMPLITUDE
BALANCE (dB)
3
1.5
0
-1.5
-3
30
15
0
-15
-30
CONVERSION LOSS
20
IMAGE REJECTION
30
40
50
1:1
12
PHASE
BALANCE (Deg.)
IMAGE REJECTION (dB)
VSWR (RATIO)
4:1
10
CONVERSION LOSS (dB)
5:1
13.2
14.4
15.6
FREQUENCY (GHz)
16.8
18
12
13.2
14.4
15.6
FREQUENCY (GHz)
16.8
18
16.8
18
LO-TO-RF ISOLATION
(LO = +10 dBm)
AMPLITUDE AND PHASE BALANCE
(I/Q, LO = +10 dBm)
0
20
12
13.2
14.4
15.6
16.8
40
18
60
80
12
13.2
14.4
15.6
FREQUENCY (GHz)
16.8
100
12
18
13.2
14.4
15.6
FREQUENCY (GHz)
GENERAL NOTE
1. Standard catalog unit aligned and tested for
guaranteed RF > LO performance. RF < LO
guaranteed performance is available, please
contact MITEQ.
MAXIMUM RATINGS
Specifications taken at ........................ +25°C
Operating temperature ........................ -54 to +85°C
Storage temperature .......................... -65 to +125°C
NOTE: Test data supplied at 25°C.
Conversion loss, LO-RF isolation, image rejection (IF Options A, B and C), phase & amplitude balance (IF Option Q).
OUTLINE DRAWINGS
IRM1218LC2A, B and C
2.00 [50.80]
1.850 [46.99]
.075 [1.91]
.500 [12.70]
IRM1218LC2Q
.250 [6.35]
2.00 [50.80]
1.850 [46.99]
.075 [1.91]
.250 [6.35]
RF<LO
RF
IN
100 Davids Drive
IRO102A16B
S/N XXXXXX
LO
IN
.500 [12.70]
.750 [19.05]
IF
OUT
.250 [6.35]
.50 [12.70]
.100 [2.54] DIA. MTG. HOLE
(TYP. 2 PLACES)
.375 [9.53]
NOTES:
1. TERM UNUSED IF
PORT INTO 50 OHMS.
2. FINISH: NICKEL
TYPE SMA FEMALE CONNECTOR
(NON-FIELD REPLACEABLE)
(TYP. 4 PLACES)
.750 [19.05]
1.00 [25.40]
IRO102A16B
S/N XXXXXX
LO
IN
RF>LO
.063 [1.60]
I
100 Davids Drive
1.00 [25.40]
.100 DIA. [2.54] MTG. HOLE
(TYP. 2 PLACES)
RF
IN
.50 [12.70]
NOTE:
1. FINISH: NICKEL
IMAGE REJECTION
Q
.063 [1.60]
.250 [6.35]
.375 [9.53]
TYPE SMA
FEMALE CONNECTOR
(NON-FIELD REPLACEABLE)
(TYP. 4 PLACES)
QIFM, I/Q DEMODULATOR
NOTE: All dimensions shown in brackets [ ] are in millimeters.
28