2 TO 18 GHz BIASABLE IMAGE REJECTION MIXERS
MODELS: IRB0218LC1A, IRB0218LC1B AND IRB0218LC1C
FEATURES
• RF/LO coverage ................ 2 to 18 GHz
• IF operation ....................... 20 to 200 MHz
• LO power range ................ -10 to +13 GHz
• Conversion loss................ 10 dB typical
• Image rejection ................. 20 dB typical
Image rejection mixers are useful for wideband test equipment or in ultra-broadband receivers requiring rejection
of an unwanted sideband of signal or noise following a low-noise front-end amplifier. These mixers are also use-
ful as linear single-sideband upconverters by operating in the reverse mode. The MITEQ IRB Series design uti-
lizes two mixers with biasable bridge diode quads, thus allowing operation at very low LO powers. The bias circuit
also automatically compensates for any power variations in the swept LO source.
ELECTRICAL SPECIFICATIONS
INPUT PARAMETERS
RF frequency range
RF VSWR (RF = -10 dBm, LO = 0 dBm)
LO frequency range
LO power range
LO VSWR (LO = 0 dBm)
DC power
IMAGE REJECTION MIXER PRODUCTS
CONDITION
UNITS
GHz
Ratio
GHz
dBm
Ratio
MIN.
2
TYP.
2:1
MAX.
18
18
2
-10
0
2.5:1
25
MIN.
TYP.
10
10
18
15
20
18
20
-10
0
MIN.
20
40
100
TYP.
+13
+15 VDC
CONDITION
RF > LO
RF < LO
mA
UNITS
dB
dB
dB
dB
dB
TRANSFER CHARACTERISTICS
Conversion loss (Note 1) (RF = -10 dBm, LO = 0 dBm)
Single-sideband noise figure
Image rejection (Note 1)
LO-to-RF isolation
LO-to-IF isolation
Input power at 1 dB compression
Input two-tone third-order intercept point
OUTPUT PARAMETERS
IF frequency range
MAX.
12.5
LO = 0 dBm
LO = 0 dBm
CONDITION
IRB0218LC1A
IRB0218LC1B
IRB0218LC1C
dBm
dBm
UNITS
MHz
MHz
MHz
Ratio
MAX.
40
80
200
IF VSWR (IF = -10 dBm, LO = 0 dBm)
1.5:1
100 Davids Drive, Hauppauge, NY 11788 • TEL: (631) 436-7400 • FAX: (631) 436-7430 •
www.miteq.com
IRB0218LC1A TYPICAL TEST DATA
VSWR
(LO = +3 dBm)
6:1
0
IMAGE REJECTION
(LO = +10 dBm)
4:1
3:1
LO
IMAGE REJECTION (dB)
16
20
5:1
10
20
30
40
50
VSWR (RATIO)
2:1
RF
1:1
0
4
8
12
FREQUENCY (GHz)
0
4
8
12
FREQUENCY (GHz)
LO-TO-RF ISOLATION
(LO = +3 dBm)
16
20
CONVERSION LOSS (LO = -7 TO +13 dBm)
(IF = 30 MHz)
0
0
20
CONVERSION LOSS (dB)
4
ISOLATION (dB)
16
20
8
LO = +13 dBm
40
60
80
12
LO = +3 dBm
16
LO = +7 dBm
100
0
4
8
12
FREQUENCY (GHz)
16
20
0
4
8
12
FREQUENCY (GHz)
MAXIMUM RATINGS
Specification temperature .............................. +25°C
Operating temperature.................................... -54 to +85°C
Storage temperature ...................................... -65 to +125°C
GENERAL NOTE
1. Standard catalog unit aligned and tested for guaranteed
RF > LO performance. RF < LO guaranteed performance
is available, please contact MITEQ.
NOTE:
Test data supplied at 25°C; conversion loss, LO-to-RF isolation and image rejection.
OUTLINE DRAWING
IMAGE REJECTION MIXER PRODUCTS
TERMINATION (50 OHMS)
2.500 [63.50]
.500 [12.70]
RF>LO
IF OUT
RF CONNECTORS SMA FEMALE
(TYP. 3 PLACES)
.25 [6.35]
HAUPPAUGE, N.Y. 11788
MADE IN USA
1.000 [25.40]
LO IN
2.000
[50.80]
.25
[6.35]
1.000 [25.40]
1.625 [41.28]
1.750 [44.45]
M/N XXXXXX
S/N XXXXXX
RF IN
RF<LO
+VDC
MOUNTING HOLES .100 [2.54] DIA. THRU
TYP. 4 PLACES
.075 [1.91]
2.350 [59.69]
.240 [6.10]
.030 [0.76] DIA. X .250 [6.35] LG.
(TYP. 2 PLACES)
.25 [6.35]
.500 [12.70]
FINISH: NICKEL
NOTE: All dimensions shown in brackets [ ] are in millimeters.
100 Davids Drive, Hauppauge, NY 11788 • TEL: (631) 436-7400 • FAX: (631) 436-7430 •
www.miteq.com
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