Saluki SPA-18-40-40 User manual

SPA-18-40-40
Broadband Power Amplifier
S/N: S56033032
Table of Contents

SPA-18-40-40
1、Test Report………………………………….1
2、Operation Manual………………………… 6

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S/N: S56033032 DATE: Mar 31th, 2023
1. Small Signal Test：
Fig.1:Small Signal Gain at 25℃(Pin=-30dBm)
Fig.2:Input VSWR at 25℃(Pin=-30dBm)

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2. Large Signal Test：
Fig.3: P1dB , P3dB and Psat at 25℃
Fig.4: Power Gain vs Frequency at 25℃(Pout= Psat)

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Fig.5: Output Power vs Frequency at 25℃
Fig.6:Gain Compression at 25℃

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Fig. 7：Noise Floor vs Frequency at 25℃
Fig.8：Output Power vs.Gain.at 25℃

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Table 1:Spurious vs Frequency(@Pout=46dBm, 25℃)
Serial
Number
Frequency
(GHz)
2nd Harmonic
(dBc)
Spurious
(dBc)
1
18.0
-31.7
-66.2
2
19.0
-23.7
-65.5
3
20.0
-25.6
-66.8
4
21.0
-32.6
-67.6
5
22.0
-51.0
-71.0
6
23.0
-51.2
-67.0
7
24.0
-47.5
-67.4
8
25.0
-48.0
-64.3
9
26.0
/
-62.0
10
27.0
/
-66.0
11
28.0
/
-65.0
12
29.0
/
-61.0
13
30.0
/
-63.0
14
31.0
/
-63.8
15
32.0
/
-67.3
16
33.0
/
-68.2
17
34.0
/
-67.7
18
35.0
/
-64.9
19
36.0
/
-65.5
20
37.0
/
-66.6
21
38.0
/
-68.3
22
39.0
/
-64.7
23
40.0
/
-62.3

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1．Product Description
SPA-18-40-40 18-40GHz 40Watts
Broadband Power Amplifier
Features: Multi-octave Broadband, High output power,
High efficiency, High reliability
Applications: Test & Measurement, SATCOM, EW
GENERAL SPECIFICATIONS:
Parameter
Unit
Min.
Typical
Max.
Frequency
GHz
18
-
40
Small Signal Gain
dB
46
-
-
Gain Adjustment
dB
-
15
-
Gain Flatness
+/-dB
-
-
8
Psat
dBm
46
-
-
Input Return Loss
dB
-
-
-10
Max. input power
dBm
-
-
5
Harmonic
dBc
-
-15
-10
Spurious
dBc
-
-65
-60

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2．Specifications
ENVIRONMENTAL SPECIFICATIONS:
Parameter
Unit
Min.
Typical
Max.
Voltage
V(AC)
90
220
240
Current@220V
A
0.8
-
3.5
Operating Temperature
℃
0
-
50
Non-Operating Temperature
℃
-20
-
65
MECHANICAL SPECIFICATIONS:
Parameter
Unit
Min.
Typical
Max.
Dimensions LxWxH
mm
-
588x483x192
-
inch
-
23.15x19.02x7.56
-
Weight
Kg
-
20.0
-
RF Input&Output
-
2.92-Female& 24JS18000
MODELAPPEARANCE(inch/mm)
3．Operation Instructions
➢Steps to turn on the power amplifier: Firstly, press
the power switch. Secondly, press the RF switch.

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Then, turn on the source output.
➢Steps to turn off the power amplifier: Firstly, turn
off the source output. Secondly, turn off the RF
switch. Then, turn off the power switch.
➢Always keep the voltage within 90V-240V. It is
suggested to connect the AC power wire first, then
turn on the rear AC switch, and finally switch on
the front DC button.
➢Quiescent current is 0.8A at 220V-AC input.
Operating current will rise to 3.5A at 220V-AC full
output power.
➢The Max. input power is 5dBm@18-40GHz, Typical:
0dBm@18-40GHz.
➢The gain will increase by turning the knob clockwise,
otherwise the gain will decrease.
➢Please always connect to a good load or attenuator
that can handle 100W or higher at the output port of
the amplifier. Cool the attenuator properly.
➢When the temperature of the final stage is higher
than 75 ℃, the Alarm LED on the front panel will
be lighted. please turn off the PA right now, and

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check if the environmental temperature higher than
50 ℃, or the fans work improperly.