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Fixed Precision High Power

Waveguide Fixed Precision Attenuators - High Power

Fixed Precision High Power Attenuators

ATM offers a series of High-Power precision attenuators covering the waveguide sizes WR28 through WR430 and attenuation values of 10dB, 20dB, 30dB, 40dB and 50dB attenuators.  Our 50db attenuators are used in high power applications and are some of the largest power attenuators available.

The assembly construction includes a precision element for optimum electrical performance, but note that Attenuation vs. Frequency can vary greatly depending on the attenuation at a given frequency. 

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

Waveguide Fixed High Power Precision Attenuators

High Power Precision Waveguide Fixed Attenuator

Waveguide Precision Fixed Attenuator - Diagram

 GENERAL SPECIFICATIONS

Electrical
Std. Attenuation values: 10, 20, 30, 40, 50dB
Nominal Attenuation accuracy: +/- 0.50dB
(+/- 0.75dB for WR42, WR34, WR28)
Freq. Sensitivity: +/- 0.60 dB
(+/- 0.75dB for WR42, WR34, WR28)
Mechanical
Size: See Tables
Body: Aluminum
Finish: Hi-Temp Black
Applicable Mil-Specs
General:
Product Specific:
WG Size Freq. (GHz) VSWR Power
Watt		 Standard
Model No.*		 Dimensions Outline
Drawings
Length (L)
Inches		 Offset (O)
Inches
WR430 1.70 - 2.60 1.15 1200 430-630HPA-dB-2-2 54.0 2.230  
WR340 2.20 - 3.30 1.15 1200 340-630HPA-dB-2-2 42.0 1.780  
WR284 2.60 - 3.95 1.15 1200 284-630HPA-dB-6-6 33.0 1.420  
WR229 3.30 - 4.90 1.15 1000 229-630HPA-dB-2-2 27.0 1.209 Dwg
WR187 3.95 - 5.85 1.15 750 187-630HPA-dB-6-6 24.0 0.936  
WR159 4.9 - 7.05 1.15 625 159-630HPA-dB-2-2 24.0 0.859  
WR137 5.85 - 8.20 1.15 500 137-630HPA-dB-2-2 22.5 0.686  
WR112 7.05 - 10.0 1.15 425 112-630HPA-dB-6-6 16.0 0.561  
WR90 8.20 - 12.4 1.15 225 90-630HPA-dB-6-6 14.5 0.450  
WR75 10.0 - 15.0 1.15 200 75-630HPA-dB-6-6 13.5 0.425  
WR62 12.4 - 18.0 1.15 100 62-630HPA-dB-6-6 11.5 0.351  
WR51 15.0 - 22.0 1.15 100 51-630HPA-dB-6-6 11.5 0.295  
WR42 18.0 - 26.5 1.15 100 42-630HPA-dB-6-6 9.5 0.210 Dwg
WR34 22.0 - 33.0 1.15 75 34-630HPA-dB-6-6 9.5 0.210 Dwg
WR28 26.5 - 40.0 1.15 75 28-630HPA-dB-6-6 9.0 0.180 Dwg

* Insert desired attenuation value (10, 20, 30, 40, or 50dB attenuator ) in the model number where dB is listed
Ordering Information
Waveguide Fixed High Power
Precision Attenuators
10dB To 50dB Attenuators
 WR -Mod M -dB -F1 -F2
Example part number:  284 -630HP A -20 -6 -6
Waveguide Size: (WR)
WR28 thru WR430 available		          
Basic Model No.: (-Mod)        
Material (M): A=Aluminum, B=Brass, C=Copper      
Attenuation (-dB) in dB 10, 20, 30, 40, 50 **      
Flange 1 (-F1): 1=CPRG, 2=CPRF, 6=Cover, 7=Choke, 8=Cover Groove  
Flange 2 (-F2): 1=CPRG, 2=CPRF, 6=Cover, 7=Choke, 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 for your needs by using the Model # code system to the left.

** Choose the attenuation value appropriate for application (10dB, 20dB, 30dB, 40dB, or 50dB attenuator ) and insert it in the model number where dB is listed.
Example P/N: 284-630HPA-20-6-6 is:
WG size WR284 High Power Attenuator / Aluminum / 20dB Attenuation / Cover Flange / Cover Flange*