Dolph Microwave
Twistable & Seamless Flexible Waveguide
Choose the flexible construction around the space you have, the flange directions and the amount of twist required. The full model table keeps the RF ratings and torsion limits together.
- Model table range
- WR650–WR22
- Flange options
- UG / CPR
- Listed standard lengths
- 300–1500 mm
Before you order
Bending and twisting are different requirements
Tell us how the ends line up
Send a sketch showing the two flange faces and the route between them. Include any rotation between the faces, rather than specifying only the overall length.
Check loss at the ordered length
The model table gives insertion loss in dB/m. Compare the same waveguide size and installed length when reviewing two assemblies.
Use the rating for your size
For example, the WR650 row lists 0.12 dB/m, 10 kW average power and 5 deg/m maximum torsion. Smaller waveguides have different limits.
The flexible waveguide selection guide covers size, frequency and bend requirements. For a fixed change of direction, compare rigid waveguide bends as well.
For the rest of your setup
Need bending without a twist requirement?
Compare the seamless flexible range before choosing the construction. Its table includes pressure ratings as well as loss and power, which may matter for a pressurized feed run.
Compare seamless flexible waveguidesTechnical data
Specifications & dimensions
Swipe or scroll across the table to see all columns.
| Specification | Detail |
|---|---|
| Frequency Range | 3.94 to 50 GHz |
| Max VSWR | 1.1:1 |
| Max Power | 4000W |
| Waveguide Sizes | WR-187 to WR-22 |
| Length Options | 300, 600, 900, 1200, 1500, 1800 mm |
| Construction Material | Oxygen Free Hard Copper or Copper Alloy |
| Flange Types | UG and CPR style available |
| MODEL | FREQ RANGE (GHz) | WG SIZE | VSWR | IL (dB/m) | AVG POWER (KW) | FLANGES TYPE | “MAX. TORSION ANGLE (deg/m) | CORE MATERIAL | JACKET TYPE | DATASHEET | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| COVER | GROOVED | |||||||||||
| DH-14WEL… | 1.13-1.73 | WR650 | 1.1:1 | 0.12 | 10 | UDR14 | PDR14 | 5 | Brass / BeCu | Silicone | STEP | |
| DH-22WEL… | 1.72-2.61 | WR430 | 1.1:1 | 0.15 | 10 | UDR22 | PDR22 | 5 | Brass / BeCu | Silicone | STEP | |
| DH-26WEL… | 2.17-3.3 | WR340 | 1.1:1 | 0.15 | 8 | UDR26 | PDR26 | 15 | Brass / BeCu | Silicone | STEP | |
| DH-32WEL… | 2.6-3.95 | WR284 | 1.1:1 | 0.15 | 6 | UDR32 | PDR32 | 46 | Brass / BeCu | Silicone | STEP | |
| DH-40WEL… | 3.22-4.9 | WR229 | 1.1:1 | 0.17 | 4 | UDR40 | PDR40 | 85 | Brass / BeCu | Silicone | STEP | |
| DH-48WEL… | 3.94-5.99 | WR187 | 1.1:1 | 0.24 | 3 | UDR48 | PDR348 | 129 | Brass / BeCu | Silicone | STEP | |
| DH-58WEL… | 4.64-7.05 | WR159 | 1.1:1 | 0.22 | 2.5 | UDR58 | PDR58 | 170 | Brass / BeCu | Silicone | STEP | |
| DH-70WEL… | 5.38-8.17 | WR137 | 1.1:1 | 0.25 | 2 | UDR70 | PDR70 | 205 | Brass / BeCu | Silicone | STEP | |
| DH-84WEL… | 6.57-9.99 | WR112 | 1.1:1 | 0.3 | 1.5 | UDR84/UBR84 | PDR84/PBR84 | 262 | Brass / BeCu | Silicone | STEP | |
| DH-100WEL… | 8.2-12.5 | WR90 | 1.1:1 | 0.4 | 1 | UDR100/UBR100 | PDR100/PBR100 | 308 | Brass / BeCu | Silicone | STEP | |
| DH-120WEL… | 9.84-15 | WR75 | 1.15:1 | 0.5 | 0.75 | UBR120 | PBR120 | 360 | Brass / BeCu | Silicone | STEP | |
| DH-140WEL… | 11.9-18 | WR62 | 1.15:1 | 0.8 | 0.4 | UBR140 | PBR140 | 436 | Brass / BeCu | Silicone | STEP | |
| DH-180WEL… | 14.5-22 | WR51 | 1.15:1 | 1.1 | 0.2 | UBR180 | PBR180 | 445 | Brass / BeCu | Silicone | STEP | |
| DH-220WEL… | 17.6-26.7 | WR42 | 1.2:1 | 1.2 | 0.1 | UBR220 | PBR220 | 510 | Brass / BeCu | Silicone | STEP | |
| DH-260WEL… | 21.7-33 | WR34 | 1.2:1 | 1.5 | 0.1 | UBR260 | PBR260 | 510 | Brass / BeCu | Silicone | STEP | |
| DH-320WEL… | 26.3-40 | WR28 | 1.2:1 | 2 | 0.075 | UBR320 | PBR320 | 510 | Brass / BeCu | Silicone | STEP | |
| DH-400WEL… | 32.9-50.1 | WR22 | 1.3:1 | 2.7 | 0.025 | FUGP400/UG-383U/M | 510 | Brass / BeCu | Silicone | STEP | ||
| Part Number Guide: DH-100WEL300PMA “100”—Waveguide Size | WR90 “WEL”—Waveguide Type | Twist-Flex Waveguide “300”— Length | 300 mm “P”— Flange Type | Rectangular Flat “M”— Flange Type | Rectangular Grooved “C”— Material | Cu | ||||||||||||
| Note: Available Preformed bend and hybrid flexible waveguide assemblies. Length of Flexible Twistable Assemblies The standard recommended length for the various waveguide sizes. MM: 300, 500, 600, 900, 1000, 1200 and 1500. Other lengths may be available on request but may be subject to tooling and design charges. Accessories Hardware, fixing and clamping kit accessories are available for use with our flexible waveguide products. | ||||||||||||
Materials & ordering options
Technical documents
Questions before ordering
Can I order a length outside the list?
The source specification allows other lengths on request and notes that tooling or design charges may apply. Send the end-to-end length and flange drawing for a quotation.
Is every flexible waveguide twistable?
No. The twistable and non-twistable constructions have separate specification sheets. Use the required movement and flange orientation to choose between them.
Related products
Waveguide Bends
View productFor a fixed bend in the transmission line.
Waveguide Transitions
View productWhen the connected waveguide sizes or interfaces differ.
Waveguide Standoff and Hangers
View productFor support and fixing of the installed waveguide run.
Tell us what you need
Have a model or drawing?
Send WR size, frequency, end-to-end length, both flange codes, a routing sketch and the required bend or twist. Add average power and pressure conditions.
