CMI Home
Select Part Type:  
  Transition - Circular to Rectangular

This is a series of precision electro-formed transitions which will enable you to connect standard rectangular waveguide to circular waveguide with a minimum of loss and reflections. They are available in 10 waveguide sizes covering a range of 18 to 160 GHz.

Each transition contains a short section of standard rectangular waveguide at the opposite end via a precisely formed integral circular to rectangular transition. All units are completely gold plated inside and out. Typical VSWR for these devices is 1.05:1 max.

Ordering Example: CR28S-3150S is a circular to rectangular transition with WR-28 rectangular waveguide on one end, .3150" diameter circular waveguide on the other. Both ends would have square flanges.

Ordering Information
To order please send email to Sales and indicate the part #s and quantities desired.
 Catalog #  Waveguide Size  Flange
 CR42S-4547S  WR42  Square - 0.875
 CR42S-3960S  WR42  Square - 0.875
 CR42S-3280S  WR42  Square - 0.875
 CR28S-3150S  WR28  Square - 0.750
 CR28S-2500S  WR28  Square - 0.750
 CR28S-2190S  WR28  Square - 0.750
 CR22R-2504R  WR22  Round - 1.125
 CR22R-2190R  WR22  Round - 1.125
 CR22R-1880R  WR22  Round - 1.125
 CR19R-2106R  WR19  Round - 1.125
 CR19R-1880R  WR19  Round - 1.125
 CR19R-1650R  WR19  Round - 1.125
 CR15R-1654R  WR15  Round - 0.750
 CR15R-1410R  WR15  Round - 0.750
 CR15R-1250R  WR15  Round - 0.750
 CR12R-1366R  WR12  Round - 0.750
 CR12R-1250R  WR12  Round - 0.750
 CR12R-0940R  WR12  Round - 0.750
 CR10R-1122R  WR10  Round - 0.750
 CR10R-0940R  WR10  Round - 0.750
 CR8R-0894R  WR8  Round - 0.750
 CR8R-0750R  WR8  Round - 0.750
 CR6R-0728R  WR6  Round - 0.750
 CR6R-0590R  WR6  Round - 0.750
 CR5R-0570R  WR5  Round - 0.750
 CR5R-0455R  WR5  Round - 0.750