Rectangular Waveguide Assemblies
Overview
Frontgrade offers a full range of rectangular waveguide assemblies. Designed using decades of waveguide design expertise, we have a solution to meet all of your design needs.
Frontgrade provides an extensive portfolio of rectangular waveguide assemblies.
Our rectangular waveguide assemblies include E-Bends, H-Bend, twists, straight and transition. In addition, we also offer custom waveguide assemblies as well as a range of cast bends in rectangular waveguide assemblies.
E-Bend
Rectangular E-Bend Waveguides
Frontgrade offers a variety of formed E-bends with flanges covering waveguide sizes WR-22 through WR-430. VSWR is less than 1.10 maximum over the full waveguide bandwidth while insertion loss is equivalent to straight waveguide sections. Additional sizes, configurations and combinations are available on request.
| Model Number | Waveguide Size | Frequency Range (GHz) |
Inside Bend Radius - Aluminum |
Inside Bend Radius - Copper |
Dimensions A or B (Min) - Aluminum |
Dimensions A or B (Min) - Copper |
|---|---|---|---|---|---|---|
| REB22 | WR - 22 | 33.00 - 50.00 | – | 0.50 | – | 1.23 |
| REB28 | WR - 28 | 26.5 - 40.00 | 0.50 | 0.50 | 1.24 | 1.24 |
| REB34 | WR - 34 | 22.00 - 33.00 | 0.50 | 0.50 | 1.26 | 1.26 |
| REB42 | WR - 42 | 18.00 - 26.5 | 0.50 | 0.50 | 1.26 | 1.26 |
| REB51 | WR - 51 | 15.00 - 22.00 | 0.50 | 0.50 | 1.30 | 1.30 |
| REB62 | WR - 62 | 12.40 - 18.00 | 0.50 | 0.50 | 1.33 | 1.33 |
| REB75 | WR - 75 | 10.00 - 15.00 | 0.62 | 0.62 | 1.61 | 1.61 |
| REB90 | WR - 90 | 8.20 - 12.40 | 0.75 | 0.75 | 1.75 | 1.75 |
| REB102 | WR - 102 | 7.00 - 11.00 | 0.88 | 0.88 | 2.06 | 2.06 |
| REB112 | WR - 112 | 7.05 - 10.00 | 0.88 | 0.88 | 2.06 | 2.06 |
| REB137 | WR - 137 | 5.85 - 8.20 | 1.00 | 1.00 | 2.25 | 2.25 |
| REB159 | WR - 159 | 4.90 - 7.05 | 1.25 | 1.25 | 2.71 | 2.71 |
| REB187 | WR - 187 | 3.95 - 5.85 | 1.50 | 1.50 | 3.00 | 3.00 |
| REB229 | WR - 229 | 3.30 - 4.90 | 2.00 | 2.00 | 3.64 | 3.64 |
| REB284 | WR - 284 | 2.60 - 3.95 | 2.50 | 2.50 | 5.00 | 5.00 |
| REB284 R/H | WR - 284 R/H | 2.60 - 3.95 | 2.00 | – | 4.04 | – |
| REB340 | WR - 340 | 2.20 - 3.30 | 4.00 | – | 7.31 | – |
| REB430 | WR - 430 | 1.70 - 2.60 | 6.00 | – | 9.79 | – |
H-Bend
Rectangular H-Bend Waveguides
Covering waveguide sizes WR-22 through WR-430, CAES’ H-bend Waveguides with flanges deliver VSWR of less than 1.10 maximum.
| Model Number | Waveguide Size | Frequency Range (GHz) |
Inside Bend Radius - Aluminum |
Inside Bend Radius - Copper |
Dimensions A or B (Min) - Aluminum |
Dimensions A or B (Min) - Copper |
|---|---|---|---|---|---|---|
| RHB22 | WR - 22 | 33.00 - 50.00 | – | 0.50 | – | 1.28 |
| RHB28 | WR - 28 | 26.5 - 40.00 | 0.62 | 0.62 | 1.31 | 1.31 |
| RHB34 | WR - 34 | 22.00 - 33.00 | 0.62 | 0.62 | 1.34 | 1.34 |
| RHB42 | WR - 42 | 18.00 - 26.50 | 0.62 | 0.62 | 1.38 | 1.38 |
| RHB51 | WR - 51 | 15.00 - 22.00 | 0.62 | 0.62 | 1.55 | 1.55 |
| RHB62 | WR - 62 | 12.40 - 18.00 | 0.62 | 0.62 | 1.60 | 1.60 |
| RHB75 | WR - 75 | 10.00 - 15.00 | 0.75 | 0.75 | 1.93 | 1.93 |
| RHB90 | WR - 90 | 8.20 - 12.40 | 0.75 | 0.75 | 2.00 | 2.00 |
| RHB102 | WR - 102 | 7.00 - 11.00 | 1.00 | 1.00 | 2.45 | 2.45 |
| RHB112 | WR - 112 | 7.05 - 10.00 | 1.00 | 1.00 | 2.50 | 2.50 |
| RHB137 | WR - 137 | 5.85 - 8.20 | 1.25 | 1.25 | 2.88 | 2.88 |
| RHB159 | WR - 159 | 4.90 - 7.05 | 2.00 | 2.00 | 3.86 | 3.86 |
| RHB187 | WR - 187 | 3.95 - 5.85 | 2.25 | 2.25 | 4.25 | 4.25 |
| RHB229 | WR - 229 | 3.30 - 4.90 | 2.50 | 2.50 | 4.71 | 4.71 |
| RHB284 | WR - 284 | 2.60 - 3.95 | 3.00 | 3.00 | 6.25 | 6.25 |
| RHB284 R/H | WR - 284 R/H | 2.60 - 3.95 | 3.50 | – | 6.63 | – |
| RHB340 | WR - 340 | 2.20 - 3.30 | 6.00 | – | 10.16 | – |
| RHB430 | WR - 430 | 1.70 - 2.60 | 8.00 | – | 12.86 | – |
Twist
Rectangular Twist Waveguides
Frontgrade manufactures a full range of rigid twist waveguides with flanges covering waveguide sizes WR-22 through WR-430. VSWR is less than 1.10 maximum over the full waveguide bandwidth while insertion loss is equivalent to straight waveguide sections. Additional sizes, configurations and combinations are available on request.
| Model Number | Waveguide Size | Frequency Range (GHz) |
Inside Bend Radius - Aluminum |
Inside Bend Radius - Copper |
Dimensions A or B (Min) - Aluminum |
Dimensions A or B (Min) - Copper |
|---|---|---|---|---|---|---|
| RT22 | WR - 22 | 33.00 - 50.00 | – | 1.00 | – | 2.26 |
| RT28 | WR - 28 | 26.50 - 40.00 | 1.00 | 1.00 | 2.26 | 2.26 |
| RT34 | WR - 34 | 22.00 - 33.00 | 1.06 | 1.06 | 2.32 | 2.32 |
| RT42 | WR - 42 | 18.00 - 26.50 | 1.12 | 1.12 | 2.38 | 2.38 |
| RT51 | WR - 51 | 15.00 - 22.00 | 1.18 | 1.18 | 2.44 | 2.44 |
| RT62 | WR - 62 | 12.40 - 18.00 | 1.25 | 1.25 | 2.51 | 2.51 |
| RT75 | WR - 75 | 10.00 - 15.00 | 1.50 | 1.50 | 3.00 | 3.00 |
| RT90 | WR - 90 | 8.20 - 12.40 | 1.75 | 1.75 | 3.25 | 3.25 |
| RT102 | WR - 102 | 7.00 - 11.00 | 2.00 | 2.00 | 3.75 | 3.75 |
| RT112 | WR - 112 | 7.05 - 10.00 | 2.00 | 2.00 | 3.75 | 3.75 |
| RT137 | WR - 137 | 5.85 - 8.20 | 2.50 | 2.50 | 4.25 | 4.25 |
| RT159 | WR - 159 | 4.90 - 7.05 | 3.00 | 3.00 | 5.00 | 5.00 |
| RT187 | WR - 187 | 3.95 - 5.85 | 4.00 | 4.00 | 6.00 | 6.00 |
| RT229 | WR - 229 | 3.30 - 4.90 | 5.00 | 5.00 | 7.50 | 7.50 |
| RT284 | WR - 284 | 2.60 - 3.95 | 6.00 | 6.00 | 9.50 | 9.50 |
| RT284 R/H | WR - 284 R/H | 2.60 - 3.95 | 6.00 | – | 9.50 | – |
| RT340 | WR - 340 | 2.20 - 3.30 | 10.00 | – | 14.76 | – |
| RT430 | WR - 430 | 1.70 - 2.60 | 12.00 | – | 17.26 | – |
Straight
Rectangular Straight Waveguides
Frontgrade’s Straight Waveguides with flanges are offered for waveguide sizes WR-22 to WR-430. VSWR is less than 1.06 typical over the full
waveguide bandwidth while insertion loss is equivalent to waveguide tubing per MIL-W-85.
| Model Number | Waveguide Size | Frequency Range (GHz) | Materials |
|---|---|---|---|
| RS22 | WR - 22 | 33.00 - 50.00 | Copper |
| RS28 | WR - 28 | 26.50 - 40.00 | Aluminum/Copper |
| RS34 | WR - 34 | 22.00 - 33.00 | Aluminum/Copper |
| RS42 | WR - 42 | 18.00 - 26.50 | Aluminum/Copper |
| RS51 | WR - 51 | 15.00 - 22.00 | Aluminum/Copper |
| RS62 | WR - 62 | 12.40 - 18.00 | Aluminum/Copper |
| RS75 | WR - 75 | 10.00 - 15.00 | Aluminum/Copper |
| RS90 | WR - 90 | 8.20 - 12.40 | Aluminum/Copper |
| RS102 | WR - 102 | 7.00 - 11.00 | Aluminum/Copper |
| RS112 | WR - 112 | 7.05 - 10.00 | Aluminum/Copper |
| RS137 | WR - 137 | 5.85 - 8.20 | Aluminum/Copper |
| RS159 | WR - 159 | 4.90 - 7.05 | Aluminum/Copper |
| RS187 | WR - 187 | 3.95 - 5.85 | Aluminum/Copper |
| RS229 | WR - 229 | 3.30 - 4.90 | Aluminum/Copper |
| RS284 | WR - 284 | 2.60 - 3.95 | Aluminum/Copper |
| RS284 R/H | WR - 284 R/H | 2.60 - 3.95 | Aluminum |
| RS340 | WR - 340 | 2.20 - 3.30 | Aluminum/Copper |
| RS430 | WR - 430 | 1.70 - 2.60 | Aluminum/Copper |
Transition
Rectangular Transition Waveguides
Frontgrade's Transition Waveguides with flanges are offered for waveguide sizes WR-22 to WR-430 are designed to interconnect different size waveguide components in a minimum space while maintaining a VSWR of 1.10 maximum in the overlap frequency bands. Additional sizes, extended range, and custom design configurations are available on request.
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