Datasheet of Different Waveguide Sizes

Waveguides is a type of feed line for high frequency signals delivery deliver microwave energy which is lower loss than coaxial cables and are used in microwave communications, industrial microwave, radars, defense and other high frequency applications. The cross section of waveguide is based on the frequency, which size is to fit one complete wavelength of the signal and cover the frequency range.

Three types of waveguides are available from its geometrically shape including Rectangular Waveguides, Double Rigid Waveguide and Circular Waveguides. The details for each type with its waveguide sizes and features.

Rectangular Waveguide Sizes

Waveguide name			Recommended frequency	Cutoff frequency	Cutoff frequency	Inner dimensions of waveguide opening
Waveguide name			Recommended frequency	lowest order mode	next mode	Inner dimensions of waveguide opening
EIA	RCSC *	IEC				A inch[mm]	B inch[mm]
WR2300	WG0.0	R3	0.32 to 0.45 GHz	0.257 GHz	0.513 GHz	23 [584.2]	11.5 [292.1]
WR2100	WG0	R4	0.35 to 0.50 GHz	0.281 GHz	0.562 GHz	21 [533.4]	10.5 [266.7]
WR1800	WG1	R5	0.45 to 0.63 GHz	0.328 GHz	0.656 GHz	18 [457.2]	9 [228.6]
WR1500	WG2	R6	0.50 to 0.75 GHz	0.393 GHz	0.787 GHz	15 [381]	7.5 [190.5]
WR1150	WG3	R8	0.63 to 0.97 GHz	0.513 GHz	1.026 GHz	11.5 [292.1]	5.75 [146.05]
WR975	WG4	R9	0.75 to 1.15 GHz	0.605 GHz	1.211 GHz	9.75 [247.65]	4.875 [123.825]
WR770	WG5	R12	0.97 to 1.45 GHz	0.766 GHz	1.533 GHz	7.7 [195.58]	3.85 [97.79]
WR650	WG6	R14	1.15 to 1.72 GHz	0.908 GHz	1.816 GHz	6.5 [165.1]	3.25 [82.55]
WR510	WG7	R18	1.45 to 2.20 GHz	1.157 GHz	2.314 GHz	5.1 [129.54]	2.55 [64.77]
WR430	WG8	R22	1.72 to 2.60 GHz	1.372 GHz	2.745 GHz	4.3 [109.22]	2.15 [54.61]
	WG9		2.20 to 3.30 GHz	1.686 GHz	3.372 GHz	3.5 [88.9]	1.75 [44.45]
WR340	WG9A	R26	2.20 to 3.30 GHz	1.736 GHz	3.471 GHz	3.4 [86.36]	1.7 [43.18]
WR284	WG10	R32	2.60 to 3.95 GHz	2.078 GHz	4.156 GHz	2.84 [72.136]	1.34 [34.036]
	WG11		3.30 to 4.90 GHz	2.488 GHz	4.976 GHz	2.372 [60.2488]	1.122 [28.4988]
WR229	WG11A	R40	3.30 to 4.90 GHz	2.577 GHz	5.154 GHz	2.29 [58.166]	1.145 [29.083]
WR187	WG12	R48	3.95 to 5.85 GHz	3.153 GHz	6.305 GHz	1.872 [47.5488]	0.872 [22.1488]
WR159	WG13	R58	4.90 to 7.05 GHz	3.712 GHz	7.423 GHz	1.59 [40.386]	0.795 [20.193]
WR137	WG14	R70	5.85 to 8.20 GHz	4.301 GHz	8.603 GHz	1.372 [34.8488]	0.622 [15.7988
WR112	WG15	R84	7.05 to 10 GHz	5.26 GHz	10.52 GHz	1.122 [28.4988]	0.497 [12.6238]
WR102			7.00 to 11 GHz	5.786 GHz	11.571 GHz	1.02 [25.908]	0.51 [12.954]
WR90	WG16	R100	8.20 to 12.40 GHz	6.557 GHz	13.114 GHz	0.9 [22.86]	0.4 [10.16]
WR75	WG17	R120	10.00 to 15 GHz	7.869 GHz	15.737 GHz	0.75 [19.05]	0.375 [9.525]
WR62	WG18	R140	12.40 to 18 GHz	9.488 GHz	18.976 GHz	0.622 [15.7988]	0.311 [7.8994]
WR51	WG19	R180	15.00 to 22 GHz	11.572 GHz	23.143 GHz	0.51 [12.954]	0.255 [6.477]
WR42	WG20	R220	18.00 to 26.50 GHz	14.051 GHz	28.102 GHz	0.42 [10.668]	0.17 [4.318]
WR34	WG21	R260	22.00 to 33 GHz	17.357 GHz	34.715 GHz	0.34 [8.636]	0.17 [4.318]
WR28	WG22	R320	26.50 to 40 GHz	21.077 GHz	42.154 GHz	0.28 [7.112]	0.14 [3.556]
WR22	WG23	R400	33.00 to 50 GHz	26.346 GHz	52.692 GHz	0.224 [5.6896]	0.112 [2.8448]
WR19	WG24	R500	40.00 to 60 GHz	31.391 GHz	62.782 GHz	0.188 [4.7752]	0.094 [2.3876]
WR15	WG25	R620	50.00 to 75 GHz	39.875 GHz	79.75 GHz	0.148 [3.7592]	0.074 [1.8796]
WR12	WG26	R740	60 to 90 GHz	48.373 GHz	96.746 GHz	0.122 [3.0988]	0.061 [1.5494]
WR10	WG27	R900	75 to 110 GHz	59.015 GHz	118.03 GHz	0.1 [2.54]	0.05 [1.27]
WR8	WG28	R1200	90 to 140 GHz	73.768 GHz	147.536 GHz	0.08 [2.032]	0.04 [1.016]
WR6	WG29	R1400	110 to 170 GHz	90.791 GHz	181.583 GHz	0.065 [1.651]	0.0325 [0.8255]
WR7	WG29	R1400	110 to 170 GHz	90.791 GHz	181.583 GHz	0.065 [1.651]	0.0325 [0.8255]
WR5	WG30	R1800	140 to 220 GHz	115.714 GHz	231.429 GHz	0.051 [1.2954]	0.0255 [0.6477]
WR4	WG31	R2200	172 to 260 GHz	137.243 GHz	274.485 GHz	0.043 [1.0922]	0.0215 [0.5461]
WR3	WG32	R2600	220 to 330 GHz	173.571 GHz	347.143 GHz	0.034 [0.8636]	0.017 [0.4318]

WR2300 waveguide Sizes

WR2300 waveguide stands out as a leading manufacturer providing a comprehensive range of high-power, low-frequency rigid and flexible waveguide products and accessories, all adhering to the IEC standard R3. The waveguide's specifications include dimensions of 23 inches x 11.5 inches, with a frequency range spanning from 0.32 to 0.45 GHz.

Primarily employed as an electromagnetic feed line for high-frequency signals, WR2300 waveguide excels in transmitting microwave energy with minimal losses. Its applications extend to high-power microwave components, notably UHF band microwave circulators. The waveguide is a key player in microwave engineering, contributing to the seamless operation of various devices.

Specific products within the WR2300 waveguide portfolio include standard gain horn antennas, antenna mounts conforming to IEC R3 standards, rigid rectangular waveguides in various lengths, low-power terminations for matched port requirements, and waveguide to coaxial adapters with high RF performance. Additionally, the waveguide flanges (2300-FDP3) operate within the frequency range of 0.32-0.49 GHz.

Whether used in military, aerospace, or commercial applications, the WR2300 waveguide to coaxial adapters exhibits versatility and reliability. The option for half-height waveguide or coaxial line further enhances the flexibility of the WR2300 waveguide, catering to diverse needs in microwave communication systems. In essence, WR2300 waveguide emerges as a go-to solution for those seeking cutting-edge technology in waveguide products for high-frequency signal transmission.

WR2300 waveguide components

Double Ridge Waveguide Sizes

Double-ridge waveguides are rectangular waveguides with two ridges protruding parallel to the short wall. It is used to solve the wide band requirement which is exceed standard waveguide size with corresponding covered frequency range.

Designation				fL - fU*	fCO**	Inside	Inside
(a)=aluminum, (b)=brass, (c)=copper, (s)=silver
WR	U.S. Mil.	British	IEC
	__ /U	Mil.
WR975	RG204 (a)			0.75-1.12	0.605	9.75	4.875
WR770	RG205 (a)			0.96-1.45	0.766	7.7	3.85
WR650	RG69 (b)	WG6		1.12-1.70	0.908	6.5	3.25
	RG103 (a)
WR510				1.45-2.20	1.157	5.1	2.55
WR430	RG104 (b)	WG8		1.70-2.60	1.372	4.3	2.15
	RG105 (a)
WR340	RG112 (b)	WG9A		2.20-3.30	1.736	3.4	1.7
	RG113 (a)
WR284	RG48 (b)	WG10		2.60-3.95	2.078	2.84	1.34
	RG75 (a)
WR229	RG340 (c)	WG11A	R40	3.30-4.90	2.577	2.29	1.145
	RG341 (a)
WR187	RG49 (b)	WG12	R48	3.95-5.85-	3.152	1.872	0.872
	RG95 (a)
WR159	RG343 (c)	WG13	R58	4.90-7.05	3.712	1.59	0.795
	RG344 (a)
WR137	RG50 (b)	WG14	R70	5.850-8.200	4.301	1.372	0.622
	RG106 (a)
WR112	RG51 (b)	WG15	R84	7.050-10.000	5.26	1.122	0.497
	RG68 (a)
WR90	RG52 (b)	WG16	R100	8.20-12.40	6.56	0.9	0.4
	RG67 (a)
WR75	RG346 (c)	WG17		10.0-15.0	7.87	0.75	0.375
	RG347 (a)
WR62	RG91 (b)	WG18		12.40-18.00	9.49	0.622	0.311
	RG349 (a)
WR51	RG352 (c)	WG19		15.00-22.00	11.6	0.51	0.255
	RG351 (a)
WR42	RG53 (b)	WG20		18.00-26.5	14.1	0.42	0.17
	RG121 (a)
WR34	RG354 (c)			20.0-33.0	17.4	0.34	0.17
WR28	RG96 (s)	WG22		26.50-40.00	21.1	0.28	0.14
	RG271 (c)
WR22	RG97 (s)	WG23		33.00-50.00	26.4	0.224	0.112
WR19		WG24		40.00-60.00	31.4	0.188	0.094
WR15	RG98 (s)	WG25		50.00-75.00	39.9	0.148	0.074
WR12	RG99 (s)	WG26		60.00-90.00	48.4	0.122	0.061
WR10		WG27		75.00-110.0	59	0.1	0.05
WR8	RG138 (s)	WG28		90.00-140.0	73.8	0.08	0.04
WR7	RG136 (s)			110.0-170.0	90.8	0.065	0.0325
WR4	RG137			170.0-260.0	137	0.043	0.0215
WR3	RG139 (s)			220.0-325.0	174	0.034	0.017

Dolph Double Ridge Waveguide

Circular Waveguide Sizes

Frequency Band	Frequency Range		Circular Waveguide Diameter, Inches (mm)	Cover Flange (Brass) MIL-F-3922 UG	Flange Type
X	LOW	8.2-9.97	1.094 (27.79)	53-001 UG-39/U	Square
	MID	8.5-11.6	0.938 (23.83)
	HIGH	9.97-12.4	0.797 (20.24)
Ku	LOW	12.4-15.9	0.688 (17.48)	53-005 UG-1666/U	Square
	MID	13.4-18.0	0.594 (15.08)
	HIGH	15.9-18.0	0.500 (12.70)
K	LOW	17.5-20.5	0.455 (11.56)	54-001 UG-595/U	Square
	MID	20-24.5	0.396 (10.06)
	HIGH	24-26.5	0.328 (8.33)
Ka	LOW	26.5-33	0.315 (8.00)	54-003 UG-595/U	Square
	MID	33-38.5	0.250 (6.35)
	HIGH	38.5-40	0.219 (5.56)
Q	LOW	33-38.5	0.250 (6.35)	67B-006 UG-383/U	Round
	MID	38.5-43	0.219 (5.56)
	HIGH	43-50	0.188 (4.78)
U	LOW	40-43	0.210 (5.33)	67B-007 UG-383/U-M	Round
	MID	43-50	0.188 (4.78)
	HIGH	50-60	0.165 (4.19)
V	LOW	50-58	0.165 (4.19)	67B-008 UG-385/U	Round
	MID	58-68	0.141 (3.58)
	HIGH	68-75	0.125 (3.18)
E	LOW	60-66	0.136 (3.45)	67B-009 UG-387/U	Round
	MID	66-82	0.125 (3.18)
	HIGH	82-90	0.094 (2.39)
W	LOW	75-88	0.112 (2.84)	67B-010 UG-387/U-M	Round
	HIGH	88-110	0.094 (2.39)
F	LOW	90-115	0.089 (2.26)	-UG-387/U-M	Round
	HIGH	115-140	0.075 (1.91)
D	LOW	110-140	0.073 (1.85)	-UG-387/U-M	Round
	HIGH	140-160	0.059 (1.50)
G	LOW	140-180	0.058 (1.47)	-UG-387/U-M	Round
	HIGH	180-220	0.045 (1.14)
---	---	170-260	0.049 (1.25)	-UG-387/U-M	Round
---	---	220-325	0.039 (0.99)	-UG-387/U-M	Round