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| product name： Miniature Variable Attenuator |
International patent pending
VAS Series(DC ~ 6GHz) |
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Features
● Using advanced microstrip technology, ultra-small size
● High RF performance, ultra-competitive price
● Wide frequency range: DC to 6GHz
● Small reflection coefficient（Max. VSWR）: 1.1～1.5
● Low attenuation tolerance,Low insertion loss
● Adjusting the transmitting (receiving) distance of RF signal precisely.
Adjusting accuracy is limited to 5cm.
● Wide attenuation values available are 1, 2, 3, 4, 5, 6, 8, 9, 10and 12dB
● High adjustment accuracy
● Average power range: 2W
● Impedance: 50Ω or 75Ω
● Switch repeatability avg.> 10000 operations (5000 cycles)per switch.
● PC(Polycarbonate)switch,operating termperature of 120℃ is available.
● It adopts an innovative technology, and thus it eliminates sudden big
reflection in attenuators when attenuation is being adjusted, preventing
the preliminary RF circuit (such as power amplifier) from being burnt,
and keeping the system stable
● Attenuation values are adjustable in power-on state,test data can be
read continuously,no interruption. |
 Sudden change of refection occurs in traditional variable
attenuator when adjusting attenuation,resulted in RF
power amplifier being burnt. | |
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| Traditional VariableAttenuator VSWR |
Yantel VSWR |
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| Characteristic |
 | For example the testing curves of VAS063003S22(DC－6GHz,0－30dB range,3dB step, SMA(F-M)) |
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Applications
● Mobile communication repeater station system
● Long-distance Reader of 2.4G RFID
● Indoor GPS locator measuring system |
● Signal emitter inside buildings
● WLAN repeater station system
● Radar |
● Lab test
● Satellite | |
Model No. Description
VAS ** ** ** * *
Frequency Attenuation Range Step Values Connector Type Max.Power -B(Optional)
Note:
Connector Type:SMA,N,F,BNC etc.
-B(represents 75Ω impedance,(no code)represents 50Ω impedance.
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| Specifications |
|
Model No. |
Attenuation
Range
(dB) |
Step
Values
(dB) |
Attenuation Accuracy
full scale(dB) |
Typical VSWR
(:1) |
Max.VSWR (:1) |
Insertion Loss at
0 dB |
Connector Type
SMA/N/F/BNC
Size (mm) for SMA/N
L*W*H |
Package
Type |
|
DC～3GHz |
DC～4GHz |
4～6GHz |
DC～4GHz |
4～6GHz |
3GHz |
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2 switches , DC~6GHz, Average Power 2W Impedance 50Ω or 75Ω① |
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|
0 to 9 |
3 |
0~+1.2 |
1.3 |
1.5 |
1.35 |
1.60 |
0.65 |
51.1*23*10.5/ 81.4*32*16 |
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0 to 18 |
6 |
0~+0.8 |
1.15 |
1.3 |
1.2 |
1.50 |
0.4 |
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0 to 20 |
10 |
0~+1.0 |
1.1 |
1.3 |
1.1 |
1.50 |
0.4 |
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3 switches, DC~6GHz, Average Power 2W Impedance 50Ω or 75Ω① |
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0 to 21 |
3 |
0~+1.2 |
1.15 |
1.35 |
1.2 |
1.50 |
0.5 |
57.3*23*10.5/ 87.6*32*16 |
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0 to 25 |
5 |
0~+1.1 |
1.15 |
1.35 |
1.2 |
1.50 |
0.5 |
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0 to 30 |
10 |
0~+1.0 |
1.1 |
1.3 |
1.2 |
1.50 |
0.5 |
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4 switches, DC~6GHz, Average Power 2W Impedance 50Ω or 75Ω① |
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0 to 15 |
1 |
0~+1.55 |
1.3 |
1.5 |
1.35 |
1.60 |
1.0 |
65.5*23*10.5/ 95.8*32*16 |
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0 to 24 |
2 |
0~+1.4 |
1.1 |
1.3 |
1.2 |
1.50 |
0.7 |
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0 to 30 |
3 |
0~+1.0 |
1.15 |
1.35 |
1.2 |
1.50 |
0.7 |
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0 to 35 |
5 |
0~+0.9 |
1.15 |
1.35 |
1.3 |
1.50 |
0.7 |
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0 to 40 |
10 |
0~+1.0 |
1.1 |
1.3 |
1.2 |
1.50 |
0.7 |
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6 switches, DC~6GHz, Average Power 2W Impedance 50Ω or 75Ω① |
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0 to 8.4 |
0.2 |
0~+2.0 |
1.20 |
1.8 |
1.3 |
1.50 |
1.2 |
87.9*25*10.5/ 118.2*32*16 |
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0 to 25.5 |
0.5 |
0~+2.0 |
1.30 |
1.50 |
1.35 |
1.60 |
1.2 |
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0 to 35 |
1 |
0~+2.0 |
1.20 |
1.40 |
1.50 |
1.60 |
1.40 |
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0 to 44 |
2 |
0~+1.8 |
1.2 |
1.4 |
1.3 |
1.50 |
1.2 |
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0 to 45 |
3 |
0~+1.5 |
1.2 |
1.4 |
1.3 |
1.50 |
1.2 |
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0 to 55 |
5 |
0~+1.5 |
1.1 |
1.3 |
1.2 |
1.50 |
1.2 |
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0 to 60 |
10 |
-1.0~+2.0 |
1.25 |
1.45 |
1.3 |
1.60 |
1.2 |
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9 switches, DC~6GHz, Average Power 2W Impedance 50Ω or 75Ω① |
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0 to 36.4 |
0.2 |
0~+3.5 |
1.2 |
1.4 |
1.3 |
1.50 |
1.8 |
116.5*25*10.5/ 146.8*32*16 |
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0 to 55.5 |
0.5 |
0~+2.0 |
1.20 |
1.40 |
1.3 |
1.60 |
1.8 |
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0 to 65 |
1 |
0~+3.5 |
1.30 |
1.50 |
1.5 |
1.60 |
2.0 |
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0 to 74 |
2 |
0~+2.0 |
1.15 |
1.35 |
1.2 |
1.50 |
1.8 |
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0 to 72 |
3 |
0~+3.5 |
1.2 |
1.40 |
1.3 |
1.60 |
2.30 |
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0 to 85 |
5 |
0~+2.0 |
1.2 |
1.40 |
1.3 |
1.60 |
1.8 |
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0 to 90 |
10 |
0~+3.0 |
1.3 |
1.40 |
1.4 |
1.60 |
2.2 |
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Non - 0dB origin series |
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3 switches, DC~6GHz, Average Power 2W Impedance 50Ω or 75Ω① |
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VAS06202703S2* |
20 to 27 |
1 |
±1 |
1.1 |
1.1 |
1.1 |
1.1 |
Note② |
88.3*23*10.5/ 119*32*15.5 |
Same as the above |
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VAS06204103S2* |
20 to 41 |
3 |
±1 |
1.1 |
1.1 |
1.1 |
1.1 |
Note② |
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4 switches, DC~6GHz, Average Power 2W Impedance 50Ω or 75Ω① |
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VAS06203501S2* |
20 to 35 |
1 |
±1 |
1.1 |
1.1 |
1.1 |
1.1 |
Note② |
65.9*25*10.5/ 98.6*32*15.5 |
Same as the above |
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6 switches, DC~6GHz, Average Power 2W Impedance 50Ω or 75Ω① |
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VAS062028P2S2* |
20 to 28.4 |
0.2 |
±1 |
1.1 |
1.1 |
1.1 |
1.1 |
Note② |
88.3*25*10.5/ 119*32*15.5 |
Same as the above |
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VAS062045HS2* |
20 to 45.5 |
0.5 |
±1 |
1.1 |
1.1 |
1.1 |
1.1 |
Note② |
Same as the above |
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VAS06205501S2* |
20 to 55 |
1 |
±1 |
1.1 |
1.1 |
1.1 |
1.1 |
Note② |
Same as the above |
Note:① Size and detailed specification of 75Ω , please refer to our website
② The attenuation is available to be customized by request | |
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