RF AMPLIFIER
MODEL
QB-300
Features
!
!
!
!
High Gain: 24.5 dB Typical
High Power: +22 dBm Typical
Operating Temp. - 54 ºC
to +71
ºC
Environmental Screening Available
Available as:
QB-300, Housing (E52-0182)
Maximum Ratings
Ambient Operating Temperature ................. -54ºC to +71 ºC
Storage Temperature ............................... -62ºC to + 125 ºC
Case Temperature ................................................. + 125 ºC
DC Voltage ......................................................... + 24 Volts
Continuous RF Input Power ................................. + 13 dBm
Short Term RF Input Power ...... 50 Milliwatts (1 Minute Max.)
Maximum Peak Power .................... 0.5 Watt (3
µsec
Max.)
Note:
1.
Specifications are guaranteed when tested in a 50 Ohm system. Specifica-
tions indicated as typical are not guaranteed.
Specifications
CHARACTERISTIC
TYPICAL
MIN/MAX
Frequency
Gain (dB)
Gain vs. Temperature
Gain Flatness
Reverse Isolation (dB)
VSWR
In
Out
1 dB Compression (dBm)
Output Intercept point
3rd Order
2nd Order
Noise Figure (dB)
Power
Vdc
mA
Ta= 25
ºC
1 - 300 MHz
24.5
± 1.0
1.0
-36
1.5:1
1.5:1
+22
+37
+52
3.8
+20
154
Ta = -54
ºC
to +71
ºC
1 - 300 MHz
+0.5/ -0.6 Max.
Typical Performance Data
27
26
25
24
23
22
1
24
23
22
21
20
19
1
Gain (dB)
MHz
10
100
-10
-20
-30
-40
-50
-60
-70
1
1.6
1.5
1.4
1.3
Output
1.2
1.1
1.0
1
Reverse Isolation (dB)
5.0
4.0
3.0
2.0
1.0
0.0
Noise Figure (dB)
MHz
10
100
1
MHz
10
100
1 dB Comp. (dBm)
Input/Output VSWR +25 ºC
Input
MHz
10
100
MHz
41
40
39
38
37
36
35
3rd order intermodulation distortion (dBm)
100
1000
1
MHz
10
100
Legend
+ 25 ºC
+ 71 ºC - - - - - - -54 ºC
Linear S-Parameters Data
==================================================================
1
-24.6
24.1
-51.0 170.0
31.5
11.5
-19.2 89.9
60
-24.8
24.2
-49.3 177.9
-2.0
-57.2
-29.6 -48.6
90
-25.0
24.2
-47.4 142.9
0.6
-85.5
-29.4 -70.8
120
-24.8
24.1
-46.4 147.7
4.6
-113.8
-28.6 -93.7
180
-22.5
24.1
-43.2 105.0
5.1
-171.4
-25.4 -144.6
210
-21.2
24.2
-43.1 72.5
2.2
159.5
-23.0 -168.9
240
-19.9
21.2
-42.6 57.5
-2.0
129.8
-20.4 171.8
270
-18.6
24.3
-41.0 40.0
-7.0
99.2
-17.8 155.1
300
-17.1 -15.6
24.3
-40.5 15.0
67.9
-15.3 138.1
FREQ.
MHz
– – S11– –
dB
Ang
– – S21– –
dB
Ang
– – S12– –
dB
Ang
– – S22– –
dB
Ang
Spectrum Microwave · 2144 Franklin Drive N.E. · Palm Bay, Florida 32905 · PH (888) 553-7531 · Fax (888) 553-7532
03/11/05
www.SpectrumMicrowave.com
Spectrum Microwave (Europe) · 2707 Black Lake Place · Philadelphia, Pa. 19154 · PH (215) 464-4000 · Fax (215) 464-4001
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