Circular to Rectangular Transitions

Our Circular to Rectangular Transitions are precision electroformed components which enable connection from standard rectangular waveguide to circular waveguide while minimizing 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 ("S" for square, "R" for round).

View Spec Sheet View Flange Sheet

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-4547S	42	18 - 26.5	0.42	0.17	2	0.4547	S 0.875	S 0.875
CR42S-3960S	42	18 - 26.5	0.42	0.17	2	0.396	S 0.875	S 0.875
CR42S-3280S	42	18 - 26.5	0.42	0.17	2	0.328	S 0.875	S 0.875
CR28S-3150S	28	26.5 - 40	0.28	0.14	1.5	0.315	S 0.750	S 0.750
CR28S-3150R	28	26.5 - 40	0.28	0.14	1.5	0.315	S 0.750	R 1.125
CR28S-2500S	28	26.5 - 40	0.28	0.14	1.5	0.25	S 0.750	S 0.750
CR28S-2500R	28	26.5 - 40	0.28	0.14	1.5	0.25	S 0.750	R 1.125
CR28S-2190S	28	26.5 - 40	0.28	0.14	1.5	0.219	S 0.750	S 0.750
CR28S-2190R	28	26.5 - 40	0.28	0.14	1.5	0.219	S 0.750	R 1.125
CR22R-2504R	22	33 - 50	0.224	0.112	1.3	0.2504	R 1.125	R 1.125
CR22R-2190R	22	33 - 50	0.224	0.112	1.3	0.219	R 1.125	R 1.125
CR22R-1880R	22	33 - 50	0.224	0.112	1.3	0.188	R 1.125	R 1.125
CR19R-2106R	19	40 - 60	0.188	0.094	1.1	0.2106	R 1.125	R 1.125
CR19R-1880R	19	40 - 60	0.188	0.094	1.1	0.188	R 1.125	R 1.125
CR19R-1650R	19	40 - 60	0.188	0.094	1.1	0.165	R 1.125	R 1.125
CR15R-1654R	15	50 - 75	0.148	0.074	1	0.1654	R 0.750	R 0.750
CR15R-1410R	15	50 - 75	0.148	0.074	1	0.141	R 0.750	R 0.750
CR15R-1250R	15	50 - 75	0.148	0.074	1	0.125	R 0.750	R 0.750
CR12R-1366R	12	60 - 90	0.122	0.061	1	0.1366	R 0.750	R 0.750
CR12R-1250R	12	60 - 90	0.122	0.061	1	0.125	R 0.750	R 0.750
CR10R-1122R	10	75 - 110	0.1	0.05	1	0.1122	R 0.750	R 0.750
CR10R-0940R	10	75 - 110	0.1	0.05	1	0.094	R 0.750	R 0.750
CR8R-0894R	8	90 - 140	0.08	0.04	1	0.0894	R 0.750	R 0.750
CR8R-0750R	8	90 - 140	0.08	0.04	1	0.075	R 0.750	R 0.750
CR6R-0728R	6	110 - 175	0.065	0.0325	1	0.0728	R 0.750	R 0.750
CR6R-0590R	6	110 - 175	0.065	0.0325	1	0.059	R 0.750	R 0.750
CR5R-0570R	5	140 - 220	0.051	0.0255	1	0.057	R 0.750	R 0.750
CR5R-0455R	5	140 - 220	0.051	0.0255	1	0.0455	R 0.750	R 0.750

Looking for something else?

Return to Parts Catalog