HMC571 Datasheet, PDF (6/11 Pages) Hittite Microwave Corporation – GaAs MMIC I/Q DOWNCONVERTER 21 - 25 GHz

v03.0808
HMC571
GaAs MMIC I/Q DOWNCONVERTER
21 - 25 GHz
3
Quadrature Channel Data Taken Without IF Hybrid
Isolations
IF Bandwidth*
10
RF/IF2
0
-10
RF/IF1
-20
-30
2LO/IF1
-40
2LO/IF2
2LO/RF
-50
-60
20
21
22
23
24
25
26
RF FREQUENCY (GHz)
20
15
10
5
CONVERSION GAIN
RETURN LOSS
0
-5
-10
-15
-20
0.5
1
1.5
2
2.5
3
3.5
IF FREQUENCY (GHz)
3 - 140
Amplitude Balance vs. LO Drive
2.5
2
LO = 0 dBm
LO = +2 dBm
LO = +4 dBm
1.5
LO = +6 dBm
LO = +8 dBm
1
0.5
0
-0.5
-1
20
21
22
23
24
25
26
RF FREQUENCY (GHz)
Phase Balance vs. LO Drive
20
15
LO = 0 dBm
LO = +2 dBm
LO = +4 dBm
LO = +6 dBm
10
LO = +8 dBm
5
0
-5
20
21
22
23
24
25
26
RF FREQUENCY (GHz)
Noise Figure vs. LO Drive,
LO Frequency = 10.3 GHz
8
0dBm
6
+2dBm
+4dBm
+6dBm
+8dBm
4
2
0
0.5
1
1.5
2
2.5
3
3.5
4
IF FREQUENCY (GHz)
Noise Figure vs. LO Drive,
IF Frequency = 100 MHz
6
5
0dBm
+2dBm
+4dBm
4
+6dBm
+8dBm
3
2
1
0
18
19
20
21
22
RF FREQUENCY (GHz)
* Conversion gain data taken with external IF hybrid, LO frequency fixed at 10.3 GHz and RF varied
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