Variable Attenuator

Switch Variable Attenuator(VAS Series)
International patent product
VAS Series(DC ~ 6GHz)

China Patent No.:CN 2008 8 0001111
USA Patent No.:US 8,212,648 B2
EU Patent No.:EP2190116A4

          
◆Innovative Technology Eliminates Sudden Big Reflection
◆The Application Advantages of Yantel Variable Attenuator in RF Test System
 
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 ion 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, 5W
● 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
● PC(Polycarbonate)switch,operating termperature of 120℃ is available.
● Attenuation values are adjustable in power-on state,test data can be read continuously,no interruption.
● Connector Type:SMA,N,F,BNC,TNC etc.available.
● Connector Position:Back Connectors or Left&right Connectors.

Abrupt change of refection occurs in traditional variable
  attenuator when adjusting attenuation,resulted in RF
  power amplifier being burnt.
   
 Traditional VariableAttenuator VSWR   Yantel VSWR
Characteristic
For example the testing curves of VAS063003S22(DC-6GHz,0-30dB range,3dB step, SMA(F-M))
     
Applications
● Mobile communication repeater station system
● Wireless Signal Coverage
● Indoor Repeater
● Signal emitter inside buildings
● WLAN repeater station system
● Radar
● Lab test
● DAS POI
 
Model Description
VAS
 ** 
 ** 
 ** 
 * 
 * 
 * 
 * 
 * 
Type
Attenuation Range
Step Values
Connector Type
Max.Power
Connector Option
Connector Position
Impedance
Note:
Type: 07 represents type number
Attenuation Range: Maximum attenuation.
Step value: 01 represents step value 1dB
Connector Type: SMA,N,F,BNC etc.
Max. Power: 2 and 5 are available, currently 2W and 5W are available.
Connector Position:“A”represents back connectors,without“A”represents left and right connectors.
Impedance:“B”represents 75Ω impedance ,“no code”represents 50Ω impedance.
e.g.: VAS073501S2
 
VAS07 Seires
N,DC~5.8GHz,High attenuation accuracy,2W or 5W
SMA,DC~5.8GHz,High attenuation accuracy,2W or 5W
Specifications
 
The complete 5W series are available. If your wanted specs are not shown below, please ask our sales engineers.
Model
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~4GHz
4~5.8GHz
DC~4GHz
4~5.8GHz
DC~4GHz
4~5.8GHz
DC~4GHz
4~5.8GHz
4 switches, DC~5.8GHz, Average Power 2W, Impedance 50Ω or 75Ω
0 to 15
1
-0.2~+2.5
0~+5.5
1.2
1.3
1.4
1.55
1.8
2.5

46.4*23*11.15(SMA)

47*28*18(N)

0 to 24
2
0~+2.5
0~+6.0
1.2
1.3
1.4
1.55
1.8
2.5
0 to 27
3
-0.5~+2.2
0~+4.5
1.2
1.3
1.4
1.55
1.8
2.5
4 switches, DC~5.8GHz, Average Power 5W, Impedance 50Ω or 75Ω
0 to 15
1
-1.0~+2.0
0~+4.5
1.2
1.3
1.40
1.65
1.2
2.0

46.4*23*11.15(SMA)

47*28*18(N)

 

0 to 24
2
-1.0~+2.0
0~+6.5
1.2
1.3
1.45
1.65
1.2
2.0
0 to 27
3
-1.0~+2.5
0~+6.0
1.3
1.4
1.45
1.65
1.2
2.0
0 to 35
5
-1.0~+2.0
0~+6.5
1.2
1.3
1.45
1.65
1.2
2.0
0 to 40
10
-1.2~+3
0~+6.5
1.3
1.3
1.65
1.65
1.2
2.0
6 switches, DC~5.8GHz, Average Power 2W, Impedance 50Ω or 75Ω
0 to 25.5
0.5
0~+3.5
0~+6.0
1.20
1.35
1.45
1.65
1.7
3.2

62.2*25*11.65(SMA)

63*28*19.5(N)

0 to 35
1
0~+3.0
0~+6
1.20
1.35
1.45
1.65
1.7
3.2
0 to 44
2
-1~+3.0
0~+6
1.25
1.35
1.50
1.60
2
3.5
0 to 45
3
-1~+3.0
0~+6
1.25
1.35
1.50
1.60
2
3.5
6 switches, DC~5.8GHz, Average Power 5W, Impedance 50Ω or 75Ω
0 to 35
1
-1.0~+3.5
0~+7.0
1.20
1.3
1.4
1.65
1.4
2.5

62.2*25*11.65(SMA)

63*28*19.5(N)

0 to 35
1
-1.5~+3.0
0~+5.0
1.25
1.35
1.55
1.65
1.4
2.5
0 to 44
2
-1.6~+3.5
-4.0~+10
1.25
1.3
1.50
1.65
1.2
2.0
0 to 45
3
-1.0~+3.5
0~+6.5
1.3
1.4
1.55
1.65
1.8
2.5
7 switches, DC~5.8GHz, Average Power 2W, Impedance 50Ω or 75Ω
0 to 45
1
-0.3~+3.5
-6~+6.0
1.20
1.3
1.5
1.55
2.2
3.5

70.9*28*19.5(N)

7 switches, DC~5.8GHz, Average Power 5W, Impedance 50Ω or 75Ω
0 to 45
1
-1.5~+3.0
0~+5.5
1.25
1.35
1.5
1.65
2.0
3.1

70.9*28*19.5(N)

9 switches, DC~5.8GHz, Average Power 2W, Impedance 50Ω or 75Ω
0 to 65
1
0~+3.5
-2.0~+7.0
1.10
1.25
1.35
1.55
2.6
4.2
85.5*25*11.65(SMA)
86.6*28*18(N)
 
0 to 74
2
0~+3.5

-2~+7.0

1.10
1.25
1.35
1.60
2.6
4.2
0 to 72
3
-1.3~+3.5
0~+6.5
1.20
1.35
1.45
1.60
3.0
5.5
0 to 90
10
0~+3.0
-5~+5.0
1.10
1.25
1.35
1.55
3.0
5.5
9 switches, DC~5.8GHz, Average Power 5W, Impedance 50Ω or 75Ω
0 to 65
1
-1~+3.0
-1~+6.0
1.25
1.35
1.50
1.65
2.0
3.5
85.5*25*11.65(SMA)
86.6*28*18(N)
 
0 to 74
2
-2~+3.5
-2.0~+7.0
1.10
1.25
1.50
1.7
1.5
2.5
0 to 72
3
-2~+4.0
0~+6.0
1.30
1.40
1.55
1.65
2.1
3.0
0 to 90
10
-2~+3.0
-5.0~+5.0
1.10
1.25
1.50
1.7
1.5
2.5
VAS07 Low PIM Seires
N,DC~5.8GHz,High attenuation accuracy,2W or 5W
SMA,DC~5.8GHz,High attenuation accuracy,2W or 5W
TNC,DC~5.8GHz,High attenuation accuracy,2W or 5W
Specifications
 
The complete 5W series are available. If your wanted specs are not shown below, please ask our sales engineers.
Model
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~4GHz
4~5.8GHz
DC~4GHz
4~5.8GHz
DC~4GHz
4~5.8GHz
DC~4GHz
4~5.8GHz
4 switches, DC~5.8GHz, Average Power 2W, Impedance 50Ω or 75Ω
0 to 15
1
-0.2~+2.5
0~+5.5
1.2
1.3
1.4
1.55
1.8
2.5

46.4*23*11.15(SMA)

47*28*18(N)


4 switches, DC~5.8GHz, Average Power 5W, Impedance 50Ω or 75Ω
0 to 15
1
-1.0~+2.0
0~+4.5
1.2
1.3
1.40
1.65
1.2
2.0

46.4*23*11.15(SMA)

47*28*18(N)

 

6 switches, DC~5.8GHz, Average Power 2W, Impedance 50Ω or 75Ω
0 to 35
1
0~+3.0
0~+6
1.20
1.35
1.45
1.65
1.7
3.2

62.2*25*11.65(SMA)

63*28*19.5(N)

0 to 35
1
0~+3.0
0~+6
1.20
1.35
1.45
1.65
1.7
3.2
6 switches, DC~5.8GHz, Average Power 5W, Impedance 50Ω or 75Ω
0 to 35
1
0~+3.0
0~+6
1.20
1.35
1.45
1.65
1.7
3.2

62.2*25*11.65(SMA)

63*28*19.5(N)

0 to 35
1
0~+3.0
0~+6
1.20
1.35
1.45
1.65
1.7
3.2
 
VAS06 Seires
SMA,DC~4GHz or DC~5.8GHz,2W or 5W
N,DC~3GHz,2W or 5W
Specifications
 
The complete 5W series are available. If your wanted specs are not shown below, please ask our sales engineers.
Model
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~3GHz
3~6GHz
DC~3GHz
3~6GHz
3GHz
2 switches , DC~6GHz, Average Power 2W Impedance 50Ω or 75Ω
0 to 9
3
0~+1.2
1.3
1.5
1.35
1.60
0.65
32*23*10.5/ 32.2*32*18  
0 to 18
6
0~+0.8
1.15
1.3
1.2
1.50
0.4
0 to 20
10
0~+1.0
1.1
1.3
1.1
1.50
0.4
3 switches, DC~6GHz, Average Power 2W, Impedance 50Ω or 75Ω
0 to 21
3
0~+1.2
1.15
1.35
1.2
1.50
0.5
38.2*23*10.5/ 38.4*32*18  
0 to 25
5
0~+1.1
1.15
1.35
1.2
1.50
0.5
0 to 30
10
0~+1.0
1.1
1.3
1.2
1.50
0.5
4 switches, DC~6GHz, Average Power 2W, Impedance 50Ω or 75Ω
46.4*23*11.2/ 46.6*32*18/ 54.4*23*11.2

0 to 15
1
0~+1.55
1.15
1.35
1.35
1.6
1.1
0 to 15
1
0~+1.55
1.2
-
1.35
-
1.1
0 to 24
2
0~+1.4
1.1
1.3
1.2
1.5
0.7
0 to 24
2
0~+1.45
1.2
-
1.35
-
0.95
0 to 30
3
0~+1.5
1.15
1.2
1.25
1.55
1.1
0 to 35
5
0~+0.9
1.15
1.25
1.35
1.5
1.1
0 to 40
10
0~+2.0
1.1
1.2
1.2
1.3
1.1
4 switches, DC~3GHz, Average Power 5W, Impedance 50Ω or 75Ω
0 ~ 15
1
0~+1.75
1.25
-
1.45
-
1.1
0 ~ 15
1
0~+1.75
1.25
-
1.45
-
1.1
0 ~ 27
3
0~+1.5
1.25
-
1.45
-
1.3
Model
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~3GHz
3~6GHz
DC~3GHz
3~6GHz
3GHz
6 switches, DC~6GHz, Average Power 2W, Impedance 50Ω or 75Ω
0 to 4.5
0.1
0~+1.5
1.25
-
1.3
-
1.1
68.8*25*11.7/ 69.2*32*18/ 70.2*27*12.7  
0 to 8.4
0.2
0~+2.0
1.25
-
1.3
-
1.1
0 to 25.5
0.5
0~+2.0
1.3
-
1.35
-
1.2
0 to 35
1
0~+2.0
1.1
-
1.35
-
1.3
0 to 35
1
0~+1.55
1.25
-
1.45
-
1.35
0 to 4.5
0.1
0~+1.6
1.25
-
1.45
-
1.0
0 to 35
1
0~+3.0
1.45)
-
1.65
-
2.5
0 to 45
1
0~+1.55
1.25
-
1.45
-
1.35
0 to 44
2
0~+1.8
1.2
-
1.3
-
1.2
0 to 45
3
0~+1.55
1.2
-
1.4
-
1.3
0 to 55
5
0~+2.0
1.15
-
1.3
-
1.3
0 to 60
10
-1.5~+2.0
1.2
-
1.4 
-
1.4
6 switches, DC~3GHz, Average Power 5W, Impedance 50Ω
0 to 35
1
0~+2.0
1.25
-
1.45
-
1.3
0 ~ 45
3
-1.5~+3
1.3
-
1.4
-
1.0
9 switches, DC~6GHz, Average Power 2W, Impedance 50Ω or 75Ω
0 to 36.4
0.2
0~+3.5
1.2
-
1.3
-
1.8
97.4*25*11.5/ 97.6*32*18  
0 to 55.5
0.5
0~+2.0
1.2
-
1.3
-
1.8
0 to 65
1
0~+2.0
-
-
-
-
1.2
0 to 65
1
0~+3.5
1.3
-
1.5
-
2.0
0 to 74
2
0~+2.0
1.15
-
1.2
-
1.8
0 to 72
3
0~+3.7
1.2
-
1.35
-
2.5
0 to 85
5
0~+2.0
1.2
-
1.3
-
1.8
0 to 90
10
0~+3.0
1.2
1.35
2.0
0 to 90
10
±1.0
1.4
-
1.7
-
1.0
9 switches, DC~6GHz, Average Power 2W, Impedance 50Ω or 75Ω
0 ~ 65
1
0~+2
1.3
-
1.65
-
1.2
0 ~ 72
3
-3~+1
1.2
-
1.4
-
1.5
12 switches, DC~3GHz, Average Power 2W, Impedance 50Ω or 75Ω
0 to 95
1
0~+3.0
1.15
-
1.35
-
2.5
109.4*27*11.7/ 109.6*32*18/
117.6*27*12.7
 
0 ~ 90
0.5
-0.5~+3.0
1.15
-
1.4
-
2.5
12 switches, DC~3GHz, Average Power 5W, Impedance 50Ω or 75Ω
0 ~ 95
1
±2.5
1.2
-
1.4
-
1.50
Non - 0dB origin series
3 switches, DC~6GHz, Average Power 2W Impedance 50Ω or 75Ω
VAS06202703S2*
20 to 27
1
±1
1.1
1.1
1.1
1.1
Note
88.3*23*10.5/ 119*32*15.5
Same as the above
VAS06204103S2*
20 to 41
3
±1
1.1
1.1
1.1
1.1
Note
4 switches, DC~6GHz, Average Power 2W Impedance 50Ω or 75Ω
VAS06203501S2*
20 to 35
1
±1
1.1
1.1
1.1
1.1
Note
65.9*25*10.5/ 98.6*32*15.5
Same as the above
6 switches, DC~6GHz, Average Power 2W Impedance 50Ω or 75Ω
VAS062028P2S2*
20 to 28.4
0.2
±1
1.1
1.1
1.1
1.1
Note
88.3*25*10.5/ 119*32*15.5
Same as the above
VAS062045HS2*
20 to 45.5
0.5
±1
1.1
1.1
1.1
1.1
Note
Same as the above
VAS06205501S2*
20 to 55
1
±1
1.1
1.1
1.1
1.1
Note
Same as the above
Note:① For detailed specifications of 75 ohm attenuator, please check with our sales representatives.
   ② The attenuation is available to be customized by request