Waveguide Attenuators,

Continuously Variable

  See Also:
Coax Fixed Attenuators
Coax Variable Attenuators

ATM offers a series of continuously variable attenuators covering the waveguide sizes WR28 through WR284 with variable attenuation from 0-30 dB.  The assembly 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.

Waveguide Attenuators, Continuously Variable (CVA)

Standard Models

WG Size

Freq (GHz)

Power

(Watts)

Standard
Model No.

Length (L)
Inches

 Outline
Drawing
WR284 2.60 - 3.95 11 284-620A-30-6-6 10.0 .pdf
WR229 3.30 - 4.90 9 229-620B-30-2-2 9.0 .pdf
WR187 3.95 - 5.85 7 187-620A-30-6-6 8.5 .pdf
WR159 4.9 - 7.05 5 159-620B-30-2-2 8.0 .pdf
WR137 5.95 - 8.20 4 137-620B-30-2-2 6.0 .pdf
WR112 7.05 - 10.0 3 112-620B-30-6-6 5.0 .pdf
WR90 8.20 - 12.4 2 90-620A-30-6-6 4.0 .pdf
WR75 10.0 - 15.0 1 75-620B-30-6-6 3.0 .pdf
WR62 12.4 - 18.0 1 62-620B-30-6-6 3.0 .pdf
WR51 15.0 - 22.0 1 51-620A-30-6-6 3.0  
WR42 18.0 - 26.5 1 42-620A-30-6-6 3.0 .pdf
WR34 22.0 - 33.0 1 34-620A-30-6-6 3.0 .pdf
WR28 26.5 - 40.0 1 28-620A-30-6-6 3.0 .pdf
Ordering Information WR - Mod M -dB - F1 - F2
W/G Coupler, SLHD            

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 ATM 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 to accommodate your needs by using the Model # code system to the left.

 

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