Waveguide tubes are hollow metallic conduits used to guide electromagnetic waves from one point to another in microwave and RF systems. They are essential for efficiently transmitting high-frequency signals with minimal loss, making them ideal for applications in radar, telecommunications, satellite communication, and scientific research. Waveguide tubes come in various shapes and sizes to accommodate different frequency ranges and system requirements, ensuring optimal performance and signal integrity.
Published Frequency
0.84–40.0 GHz
Waveguide Range
WRD840–WRD180
Published Standards
IEC and EIA
Compatible Flanges
FPWRD / FMWRD
Material Options
Aluminum / Copper
Supply Format
Standard and Custom Lengths
Double-Ridged Waveguide Tube
These double-ridged waveguide tubes provide the mechanical transmission path used to route microwave and RF signals in broadband WRD assemblies. Selection begins with the operating band and WRD family, followed by dimensional, material and length requirements.
The current range covers thirteen WRD families from WRD840 through WRD180, corresponding to published operating bands from 0.84 GHz to 40.0 GHz.
The product summary lists aluminum and copper options together with standard and customized mechanical configurations. Tube length and final interface details should be defined in the approved drawing or quotation.
Published Dimensional Data
The table preserves the published frequency, standards, compatible flange families and dimensional fields for each WRD size. Use the project drawing as the controlling production document.
Swipe horizontally to view all dimensional columns.
| Frequency (GHz) | WRD Size | IEC Std. | EIA Std. | Cover Flange | Grooved Flange | A | B | A/B Tol. ± | E | E Tol. ± | Rmax | R ±10% | H | H Tol. ± | C | D | C/D Tol. ± | Files |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.84–2.0 | WRD840 | 24JS8400 | WRD840-U24 | FPWRD840U24 | FMWRD840U24 | 156.64 | 72.85 | 0.1 | 30.96 | 0.05 | 1.27 | 6.2 | 31.17 | 0.05 | 163 | 79.2 | 0.1 | PDFSTEP |
| 1.5–3.6 | WRD150 | 24JS1500 | WRD150-D24 | FPWRD150D24 | FMWRD150D24 | 87.76 | 40.82 | 0.1 | 16.21 | 0.05 | 1.27 | 3.47 | 21.95 | 0.05 | 91.82 | 44.88 | 0.1 | PDFSTEP |
| 2.0–4.8 | WRD200 | 24JS2000 | WRD200-D24 | FPWRD200D24 | FMWRD200D24 | 65.79 | 30.61 | 0.1 | 13 | 0.05 | 1.27 | 2.59 | 16.46 | 0.05 | 69.85 | 34.67 | 0.1 | PDFSTEP |
| 2.6–7.8 | WRD250 | 30JS2500 | WRD250-D30 | FPWRD250D30 | FMWRD250D30 | 42.04 | 18.16 | 0.08 | 3.81 | 0.05 | 0.51 | 2.34 | 11.18 | 0.05 | 46.1 | 22.22 | 0.1 | PDFSTEP |
| 3.5–8.2 | WRD350 | 24JS3500 | WRD350-D24 | FPWRD350D24 | FMWRD350D24 | 37.59 | 17.48 | 0.08 | 7.42 | 0.05 | 0.76 | 1.47 | 9.4 | 0.05 | 40.84 | 20.73 | 0.1 | PDFSTEP |
| 4.75–11.0 | WRD475 | 24JS4750 | WRD475-D24 | FPWRD475D24 | FMWRD475D24 | 27.69 | 12.85 | 0.08 | 5.46 | 0.05 | 0.76 | 1.09 | 6.91 | 0.05 | 30.23 | 15.39 | 0.08 | PDFSTEP |
| 5.0–18.0 | WRD500 | 36JS5000 | WRD500-D36 | FPWRD500D36 | FMWRD500D36 | 19.1 | 8.2 | 0.08 | 1.6 | 0.05 | 0.38 | 0.33 | 4.78 | 0.05 | 21.64 | 10.74 | 0.08 | PDFSTEP |
| 5.8–16.0 | WRD580 | 28JS5800 | WRD580-D28 | FPWRD580D28 | FMWRD580D28 | 19.81 | 9.4 | 0.08 | 3.05 | 0.05 | 0.38 | 1.09 | 5.08 | 0.05 | 22.35 | 11.94 | 0.08 | PDFSTEP |
| 6.5–18.0 | WRD650 | 28JS6500 | WRD650-D28 | FPWRD650D28 | FMWRD650D28 | 18.29 | 8.15 | 0.08 | 2.57 | 0.05 | 0.51 | 0.56 | 4.39 | 0.05 | 20.85 | 10.69 | 0.08 | PDFSTEP |
| 7.0–18.5 | WRD700 | 26JS7000 | WRD700-D26 | FPWRD700D26 | FMWRD700D26 | 17.42 | 7.87 | 0.08 | 2.67 | 0.05 | 0.51 | 0.58 | 4.39 | 0.05 | 19.96 | 10.41 | 0.08 | PDFSTEP |
| 7.5–18.0 | WRD750 | 24JS7500 | WRD750-D24 | FPWRD750D24 | FMWRD750D24 | 17.55 | 8.15 | 0.08 | 3.45 | 0.05 | 0.51 | 0.69 | 4.39 | 0.05 | 20.09 | 10.69 | 0.08 | PDFSTEP |
| 11.0–26.5 | WRD110 | 24JS11000 | WRD110-C24 | FPWRD110C24 | FMWRD110C24 | 11.96 | 5.56 | 0.08 | 2.36 | 0.05 | 0.38 | 0.48 | 3 | 0.05 | 14 | 7.59 | 0.08 | PDFSTEP |
| 18.0–40.0 | WRD180 | 24JS18000 | WRD180-C24 | FPWRD180C24 | FMWRD180C24 | 7.32 | 3.4 | 0.05 | 1.45 | 0.05 | 0.38 | 0.28 | 1.83 | 0.05 | 9.35 | 5.44 | 0.08 | PDFSTEP |
Dimensional control: all values above are reproduced from the published product table and are shown in millimetres unless otherwise indicated. Confirm the current revision, drawing datums, allowable tolerances and manufacturing configuration before placing an order.
Dimension Guide
A WRD family identifies the waveguide series, but manufacturing and fit checks still require the complete dimensional drawing. The table groups the published fields used to describe the internal ridged profile and external envelope.
Primary internal width and height values for the published double-ridged cross-section.
Published ridge spacing, radius-related and height-related fields that control the internal profile.
Published outside width and height used for mechanical clearance and fabrication review.
Apply the current approved drawing whenever tighter fit, mating or inspection limits are required.
Selection and RFQ
A complete inquiry should define the electrical band and mechanical supply condition. This reduces the risk of quoting a correct WRD family with the wrong length, material or interface assumptions.
Provide the complete minimum and maximum frequency, not only a nominal center frequency.
Select WRD840 through WRD180 using the published band and dimensional table.
State the finished tube length and any end preparation or machining allowance.
Identify the required base material and any specific grade when controlled by the project.
State whether the tube must integrate with FPWRD, FMWRD or another project-specific interface.
List required drawings, dimensional records, material records or inspection documentation.
Application Areas
Final suitability depends on the selected WRD family, material, length, interfaces, installation environment and complete assembly design.
Broadband waveguide runs and custom fabricated interconnect sections.
RF transmission paths requiring controlled WRD-series geometry.
Ground-station, feed-network and equipment interconnection assemblies.
Laboratory fixtures and experimental broadband microwave systems.
Signal distribution equipment where waveguide routing is specified.
Specification-Based Quotation
Include the operating band, WRD family, finished length, material, dimensional tolerances, interface requirements, quantity and required documentation. Dolph Microwave can review standard and customized mechanical configurations against the project drawing.
Dolph Microwave warrants our products to be free from defective material and workmanship for a period of one year from the date of delivery. All defective parts will be replaced and repair work required by normal use will be performed, without charge, within this one year period. This warranty shall be exclusive and in lieu of all other warranties expressed or implied.
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