Circular to Rectangular Transitions

Our Circular to Rectangular Transitions are precision electro-formed components which will enable you to connect standard rectangular waveguide to circular waveguide with a minimum of loss and reflections. Each transition contains a short section of standard rectangular waveguide which gradually transitions to a circular shape. Circular to Rectangular Transitions are available in sizes WR3 to WR42 with circular sizes ranging from 0.0455 inch to 0.4547 inch.

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.

Quantity Part Name WR Frequency (GHz) WG A DIM(in) WG B DIM(in) Length-L(in) Circular Diameter(in) Rectangular WG Flange Circular WG Flange
CR42S-4547S4218 - 26.50.420.1720.4547S 0.875S 0.875
CR42S-3960S4218 - 26.50.420.1720.396S 0.875S 0.875
CR42S-3280S4218 - 26.50.420.1720.328S 0.875S 0.875
CR28S-3150S2826.5 - 400.280.141.50.315S 0.750S 0.750
CR28S-3150R2826.5 - 400.280.141.50.315S 0.750R 1.125
CR28S-2500S2826.5 - 400.280.141.50.25S 0.750S 0.750
CR28S-2500R2826.5 - 400.280.141.50.25S 0.750R 1.125
CR28S-2190S2826.5 - 400.280.141.50.219S 0.750S 0.750
CR28S-2190R2826.5 - 400.280.141.50.219S 0.750R 1.125
CR22R-2504R2233 - 500.2240.1121.30.2504R 1.125R 1.125
CR22R-2190R2233 - 500.2240.1121.30.219R 1.125R 1.125
CR22R-1880R2233 - 500.2240.1121.30.188R 1.125R 1.125
CR19R-2106R1940 - 600.1880.0941.10.2106R 1.125R 1.125
CR19R-1880R1940 - 600.1880.0941.10.188R 1.125R 1.125
CR19R-1650R1940 - 600.1880.0941.10.165R 1.125R 1.125
CR15R-1654R1550 - 750.1480.07410.1654R 0.750R 0.750
CR15R-1410R1550 - 750.1480.07410.141R 0.750R 0.750
CR15R-1250R1550 - 750.1480.07410.125R 0.750R 0.750
CR12R-1366R1260 - 900.1220.06110.1366R 0.750R 0.750
CR12R-1250R1260 - 900.1220.06110.125R 0.750R 0.750
CR10R-1122R1075 - 1100.10.0510.1122R 0.750R 0.750
CR10R-0940R1075 - 1100.10.0510.094R 0.750R 0.750
CR8R-0894R890 - 1400.080.0410.0894R 0.750R 0.750
CR8R-0750R890 - 1400.080.0410.075R 0.750R 0.750
CR6R-0728R6110 - 1750.0650.032510.0728R 0.750R 0.750
CR6R-0590R6110 - 1750.0650.032510.059R 0.750R 0.750
CR5R-0570R5140 - 2200.0510.025510.057R 0.750R 0.750
CR5R-0455R5140 - 2200.0510.025510.0455R 0.750R 0.750