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Shorts Offset

Rectangular Waveguide Offset Shorts

Waveguide Offset Shorts

ATM offers a series of waveguide offset shorts which provide high reflection short circuits for terminating all standard waveguides from WR650 to WR28.  They are designed with a hole pattern to match the standard flanges in each waveguide.  Waveguide offset shorts are available with a standard 1/8, 1/4, and 3/8 shorting distance, designed close to the center frequency of each waveguide size. 

The frequency these are designed to allow the units to have extraordinary electrical performance across each of the different waveguide frequency bands.  These are also available with a custom shorting distance as a special order.  Please call us and discuss your needs with one of our design engineers.

Waveguide Offset Shorts
Waveguide Offset Shorts Rectangular Waveguide Offset Shorts
WG Size Freq (GHz) Hole Pattern Standard Model No.* Length (cm)
at 1/4 λ
WR650 1.12 - 1.70 CPR650F 650-242A-1/4-2 7.162
WR430 1.70 - 2.60 CPR430F 430-242A-1/4-2 4.668
WR340 2.20 - 3.30 CPR340F 340-242A-1/4-2 3.605
WR284 2.60 - 3.95 UG Cover 284-242A-1/4-6 3.046
WR229 3.30 - 4.90 CPR229F 229-242A-1/4-2 2.407
WR187 3.95 - 5.85 UG Cover 187-242A-1/4-6 2.051
WR159 4.90 - 7.05 CPR159F 159-242A-1/4-2 1.631
WR137 5.85 - 8.20 CPR137F 137-242A-1/4-2 1.369
WR112 7.05 - 10.0 UG Cover 112-242A-1/4-6 1.136
WR102 7.00 - 11.0 UG Cover 102-242A-1/4-6 1.127
WR90 8.20 - 12.4 UG Cover 90-242A-1/4-6 0.970
WR75 10.0 - 15.0 UG Cover 75-242A-1/4-6 0.791
WR62 12.4 - 18.0 UG Cover 62-242A-1/4-6 0.644
WR51 15.0 - 22.0 UG Cover 51/242A-1/4-6 0.531
WR42 18.0 - 26.5 UG Cover 42-242A-1/4-6 0.445
WR34 22.0 - 33.0 UG Cover 34-242A-1/4-6 0.360
WR28 26.5 - 40.0 UG Cover 28-242A-1/4-6 0.299
WR22 33.0 - 50.0 UG Cover 22-242A-1/4-6 0.244
Ordering Information
Waveguide Offset Shorts
 WR -Mod M -O -F
Example part number:  90 -242 A -1/4 -6
Waveguide Size: (WR)
WR22 thru WR650 available		        
Basic Model No.: (-Mod)      
Material (M): A=Aluminum, B=Copper/Brass    
Waveguide Offset (-O): Standard: 1/8, 1/4, 3/8 Wavelength    
Flange  (-F): 1=CPRG, 2=CPRF, 6=Cover, 7=Choke
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.