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Variable CVA

Waveguide Continuously Variable Attenuators - CVA

Waveguide Variable Attenuators

Narda-MITEQ offers continuously variable attenuators covering the waveguide sizes WR28 through WR284 with variable attenuation from 0-30 dB. 

Construction includes a multi-turn dial useful for adjusting attenuation, and can be calibrated at a spot frequency upon request.  All models have a maximum VSWR of 1.15 and maximum insertion loss of 0.5dB.

For more information feel free to call us and discuss your needs with one of our design engineers.

Level Adjust Standard Models
Waveguide Continuously Variable Attenuators (CVA)
Waveguide Continuously Variable Attenuator Waveguide Continuously Variable Attenuator
WG Size Freq (GHz) Power
(Watts)		 Standard
Model No.*		 Length (L)
Inches		 Flatness
+/- dB		 Outline
Drawing
WR284 2.60 - 3.95 11 284-620A-30-6-6 10.0 N/A Dwg
WR229 3.30 - 4.90 9 229-620B-30-2-2 9.0 N/A Dwg
WR187 3.95 - 5.85 7 187-620A-30-6-6 8.5 N/A Dwg
WR159 4.9 - 7.05 5 159-620B-30-2-2 8.0 N/A Dwg
WR137 5.95 - 8.20 4 137-620B-30-2-2 6.0 N/A Dwg
WR112 7.05 - 10.0 3 112-620B-30-6-6 5.0 N/A Dwg
WR90 8.20 - 12.4 2 90-620A-30-6-6 4.0 N/A Dwg
WR75 10.0 - 15.0 1 75-620B-30-6-6 3.0 N/A Dwg
WR62 12.4 - 18.0 1 62-620B-30-6-6 3.0 N/A Dwg
WR51 15.0 - 22.0 1 51-620A-30-6-6 3.0 N/A  
WR42 18.0 - 26.5 1 42-620A-30-6-6 3.0 N/A Dwg
WR34 22.0 - 33.0 1 34-620A-30-6-6 3.0 N/A Dwg
WR28 26.5 - 40.0 1 28-620A-30-6-6 3.0 N/A Dwg
Ordering Information
Waveguide Variable Attenuator
Level Adjust Models
 WR -Mod M -dB -F1 -F2
Example part number:  112 -620 B -30 -6 -6
Waveguide Size: (WR)
WR28 thru WR284 available		          
Basic Model No.: (-Mod)        
Material (M): A=Aluminum, B=Copper/Brass      
Coupling (-dB) 0 to 30 possible      
Flange 1 (-F1): 1=CPRG, 2=CPRF, 6=Cover, 8=Cover Groove  
Flange 2 (-F2): 1=CPRG, 2=CPRF, 6=Cover, 8=Cover Groove
See Narda-MITEQ Standard Flange page for more info.		  

* The Standard Model Numbers above are the most common parts ordered for size, material and flange. However, these models can easily be altered for your needs by using the Model # code system to the left.

 

Frequency Flat Models
Waveguide Continuously Variable Attenuators (CVA)
Waveguide Continuously Variable Attenuator Waveguide Continuously Variable Attenuator
WG Size Freq (GHz) Power
(Watts)		 Standard
Model No.*		 Length (L)
Inches		 Flatness
+/- dB		 Outline
Drawing
WR284 2.60 - 3.95 11 284-AF620A-10-6-6 10.0   Dwg
WR229 3.30 - 4.90 9 229-AF620B-10-2-2 9.0   Dwg
WR187 3.95 - 5.85 7 187-AF620A-10-6-6 8.5   Dwg
WR159 4.9 - 7.05 5 159-AF620B-10-2-2 8.0   Dwg
WR137 5.95 - 8.20 4 137-AF620B-10-2-2 6.0 +/- 1.0dB Dwg
WR112 7.05 - 10.0 3 112-AF620B-10-6-6 5.0 +/- 1.0dB Dwg
WR90 8.20 - 12.4 2 90-AF620A-10-6-6 4.0 +/- 1.0dB Dwg
WR75 10.0 - 15.0 1 75-AF620B-10-6-6 3.0 +/- 1.0dB Dwg
WR75 10.0 - 15.0 1 75-AF620B-20-6-6 3.0 +/- 1.0dB Dwg
WR62 12.4 - 18.0 1 62-AF620B-10-6-6 3.0 +/- 1.5dB Dwg
WR62 12.4 - 18.0 1 62-AF620B-15-6-6 3.0 +/- 1.5dB Dwg
WR51 15.0 - 22.0 1 51-AF620A-10-6-6 3.0 +/- 2.0dB  
WR42 18.0 - 26.5 1 42-AF620A-10-6-6 3.0 +/- 3.0dB Dwg
WR34 22.0 - 33.0 1 34-AF620A-10-6-6 3.0 +/- 3.0dB Dwg
WR28 26.5 - 40.0 1 28-AF620A-10-6-6 3.0 +/- 3.0dB Dwg
Ordering Information
Waveguide Variable Attenuator
Frequency Flat Models
 WR -Mod M -dB -F1 -F2
Example part number:  112 -AF620 B -10 -6 -6
Waveguide Size: (WR)
WR28 thru WR284 available		          
Basic Model No.: (-Mod)        
Material (M): A=Aluminum, B=Copper/Brass      
Coupling (-dB) 0 to 10 possible      
Flange 1 (-F1): 1=CPRG, 2=CPRF, 6=Cover, 8=Cover Groove  
Flange 2 (-F2): 1=CPRG, 2=CPRF, 6=Cover, 8=Cover Groove
See Narda-MITEQ Standard Flange page for more info.		  

* The Standard Model Numbers above are the most common parts ordered for size, material and flange. However, these models can easily be altered for your needs by using the Model # code system to the left.