Double-Ridged Waveguide / High Power

High-Power Double-Ridged Waveguide to Coaxial Adapter

For connecting a high-power double-ridged waveguide line to a coaxial cable or RF module. The listed models cover WRD840 through WRD750, with DIN 7/16 or N-type interfaces and right-angle or end-launch layouts. Average power is model-dependent, up to 1000 W in the published table.

View model table Download PDFs

Dolph Microwave high-power double-ridged waveguide coaxial adapter

WRD840–WRD750Waveguide sizes in the current high-power table

0.84–18.5 GHzFrequency span represented by the listed model rows

Up to 1000 WPublished average power, depending on model

WHPCA / WHPECARight-angle and end-launch layouts

Start With the Interface

Frequency alone is not enough to pick the adapter.

Use the full operating band

Send the lower and upper frequency limits. A center frequency can point to more than one waveguide family.

Match the exact WRD flange

Confirm the WRD size and whether the mating flange is cover or grooved. Bolt pattern and sealing face matter.

Choose the coax connector

The current high-power rows list DIN 7/16 for WRD840 and N-K for the other listed WRD sizes.

State the real power condition

Give average power. For pulsed systems, also give peak power, pulse width and duty cycle.

If power or flange selection is still open, see the waveguide power handling guide and the waveguide flange size guide.

Mechanical Layout

Right-angle or end-launch: choose the one that fits the real assembly.

High-power double-ridged waveguide coaxial adapter product view

Check connector clearance before the model is released.

On a bench, both layouts can look simple. Inside a rack, antenna feed or test fixture, the cable bend and connector access often decide which one works.

WHPCA: high-power right-angle waveguide to coaxial adapter.
WHPECA: high-power end-launch waveguide to coaxial adapter.
Confirm the available envelope, cable direction and flange clocking from your drawing or installation space.

Product family view used to review a right-angle waveguide coaxial adapter layout

WHPCA

Right-angle layout

Use this when the coax cable needs to leave from the side of the waveguide body or when axial space is tight.

Closer product crop for reviewing connector and waveguide interface space

WHPECA

End-launch layout

Use this when an axial connector position suits the assembly. Leave enough room for the mating connector and cable bend.

Published Electrical Data

Use the table row, not the biggest number on the page.

0.84–40 GHzBroader family range stated in the current product overview.

0.84–18.5 GHzFrequency span actually represented by the current high-power model rows.

1.25:1–1.4:1VSWR values published across the listed models.

0.3–0.4 dBInsertion-loss values published across the listed models.

500–1000 WAverage-power values appearing in the current model table.

Important: the page overview says 0.84–40 GHz, but the current high-power rows shown below stop at 18.5 GHz. If your requirement is above the listed rows, send the exact band and connector requirement for confirmation instead of assuming that every high-power configuration extends to 40 GHz.

Product Details Kept From the Current Page

What the published page says about the product family

High power handling

Up to 1000 W average power, model-dependent.

Broadband family coverage

The current overview states 0.84–40 GHz. The detailed high-power rows currently published below cover 0.84–18.5 GHz.

VSWR

The current feature copy states ≤1.4:1. Individual rows list 1.25:1, 1.3:1 or 1.4:1.

Insertion loss

The current feature copy states ≤0.4 dB. Listed rows show 0.3 or 0.4 dB.

Construction and finish

The page lists precision-machined aluminum or aluminum/copper construction with Surtec 650 or chromate corrosion protection.

Connector options mentioned on the page

DIN 7-16, N-type female/male and SMA are mentioned in the current feature copy.

Connector check: the detailed high-power rows currently shown on the page list DIN 7/16 and N-K. SMA is mentioned in the broader feature copy but does not appear in those listed rows, so an SMA high-power request should be confirmed by exact model before ordering.

Dolph Microwave high-power waveguide coaxial adapter for published application review

Applications Listed on the Current Page

Where the current product page positions this adapter

Radar systemsHigh-power pulse transmission for military and aviation radar.

Satellite communicationsLow-loss signal routing in C/X/Ku-band SATCOM.

5G infrastructureBackhaul and mmWave base-station testing.

Test & measurementCalibration and signal-integrity validation up to 40 GHz, subject to the selected model and interface.

Wireless networksDAS and RF front-end integration.

Quick Model Shortlist

Find the WRD family first, then check the full row.

WG SIZE	FREQUENCY	CONNECTOR	AVG. POWER	COVER FLANGE	GROOVED FLANGE
WRD840	0.84–2.0 GHz	DIN 7/16	800 / 1000 W	FPWRD840U24	FMWRD840U24
WRD150	1.5–3.6 GHz	N-K	600 W	FPWRD150D24	FMWRD150D24
WRD200	2.0–4.8 GHz	N-K	500 W	FPWRD200D24	FMWRD200D24
WRD250	2.6–7.8 GHz	N-K	500 W	FPWRD250D30	FMWRD250D30
WRD350	3.5–8.2 GHz	N-K	500 W	FPWRD350D24	FMWRD350D24
WRD475	4.75–11.0 GHz	N-K	500 W	FPWRD475D24	FMWRD475D24
WRD500	5.0–18.0 GHz	N-K	500 W	FPWRD500D36	FMWRD500D36
WRD580	5.8–16.0 GHz	N-K	500 W	FPWRD580D28	FMWRD580D28
WRD650	6.5–18.0 GHz	N-K	500 W	FPWRD650D28	FMWRD650D28
WRD700	7.0–18.5 GHz	N-K	500 W	FPWRD700D26	FMWRD700D26
WRD750	7.5–18.0 GHz	N-K	500 W	FPWRD750D24	FMWRD750D24

This shortlist is only a faster way to find the relevant WRD family. The complete published table below is kept in full and remains the detailed reference.

Complete Published Table

All current high-power model rows

MODEL	FREQ. RANGE (GHz)	WG SIZE	VSWR	IL (dB)	CONNECTOR Type	AVG. POWER (W)	COVER FLANGE	GROOVED FLANGE	MATERIAL	FINISH	DATASHEET
DH-840DRWHPCA…	0.84-2.0	WRD840	1.25:1	0.3	DIN 7/16	1000	FPWRD840U24	FMWRD840U24	Al	Chromate/Painted	PDFSTEP
DH-840DRWHPECA…	0.84-2.0	WRD840	1.25:1	0.3	DIN 7/16	1000	FPWRD840U24	FMWRD840U24	Al	Chromate/Painted	PDFSTEP
DH-840DRWHPCA…	0.84-2.0	WRD840	1.25:1	0.3	DIN 7/16	1000	FPWRD840U24	FMWRD840U24	Al	Chromate/Painted	PDFSTEP
DH-840DRWHPECA…	0.84-2.0	WRD840	1.25:1	0.3	DIN 7/16	1000	FPWRD840U24	FMWRD840U24	Al	Chromate/Painted	PDFSTEP
DH-840DRWHPCA…	0.84-2.0	WRD840	1.25:1	0.3	DIN 7/16	800	FPWRD840U24	FMWRD840U24	Al	Chromate/Painted	PDFSTEP
DH-840DRWHPECA…	0.84-2.0	WRD840	1.25:1	0.3	DIN 7/16	800	FPWRD840U24	FMWRD840U24	Al	Chromate/Painted	PDFSTEP
DH-150DRWHPCA…	1.5-3.6	WRD150	1.25:1	0.3	N-K	600	FPWRD150D24	FMWRD150D24	Al	Chromate/Painted	PDFSTEP
DH-150DRWHPECA…	1.5-3.6	WRD150	1.25:1	0.3	N-K	600	FPWRD150D24	FMWRD150D24	Al	Chromate/Painted	PDFSTEP
DH-200DRWHPCA…	2.0-4.8	WRD200	1.4:1	0.3	N-K	500	FPWRD200D24	FMWRD200D24	Al	Chromate/Painted	PDFSTEP
DH-200DRWHPECA…	2.0-4.8	WRD200	1.4:1	0.3	N-K	500	FPWRD200D24	FMWRD200D24	Al	Chromate/Painted	PDFSTEP
DH-250DRWHPCA…	2.6-7.8	WRD250	1.4:1	0.4	N-K	500	FPWRD250D30	FMWRD250D30	Al	Chromate/Painted	PDFSTEP
DH-250DRWHPECA…	2.6-7.8	WRD250	1.4:1	0.4	N-K	500	FPWRD250D30	FMWRD250D30	Al	Chromate/Painted	PDFSTEP
DH-350DRWHPCA…	3.5-8.2	WRD350	1.4:1	0.4	N-K	500	FPWRD350D24	FMWRD350D24	Al	Chromate/Painted	PDFSTEP
DH-350DRWHPECA…	3.5-8.2	WRD350	1.4:1	0.4	N-K	500	FPWRD350D24	FMWRD350D24	Al	Chromate/Painted	PDFSTEP
DH-475DRWHPCA…	4.75-11.0	WRD475	1.3:1	0.3	N-K	500	FPWRD475D24	FMWRD475D24	Al	Chromate/Painted	PDFSTEP
DH-475DRWHPECA…	4.75-11.0	WRD475	1.3:1	0.3	N-K	500	FPWRD475D24	FMWRD475D24	Al	Chromate/Painted	PDFSTEP
DH-500DRWHPCA…	5.0-18.0	WRD500	1.3:1	0.3	N-K	500	FPWRD500D36	FMWRD500D36	Al	Chromate/Painted	PDFSTEP
DH-500DRWHPECA…	5.0-18.0	WRD500	1.3:1	0.3	N-K	500	FPWRD500D36	FMWRD500D36	Al	Chromate/Painted	PDFSTEP
DH-580DRWHPCA…	5.8-16.0	WRD580	1.3:1	0.3	N-K	500	FPWRD580D28	FMWRD580D28	Al	Chromate/Painted	PDFSTEP
DH-580DRWHPECA…	5.8-16.0	WRD580	1.3:1	0.3	N-K	500	FPWRD580D28	FMWRD580D28	Al	Chromate/Painted	PDFSTEP
DH-650DRWHPCA…	6.5-18.0	WRD650	1.25:1	0.3	N-K	500	FPWRD650D28	FMWRD650D28	Al/Cu	Chromate/Painted	PDFSTEP
DH-650DRWHPECA…	6.5-18.0	WRD650	1.25:1	0.3	N-K	500	FPWRD650D28	FMWRD650D28	Al/Cu	Chromate/Painted	PDFSTEP
DH-700DRWHPCA…	7.0-18.5	WRD700	1.25:1	0.3	N-K	500	FPWRD700D26	FMWRD700D26	Al/Cu	Chromate/Painted	PDFSTEP
DH-700DRWHPECA…	7.0-18.5	WRD700	1.25:1	0.3	N-K	500	FPWRD700D26	FMWRD700D26	Al/Cu	Chromate/Painted	PDFSTEP
DH-750DRWHPCA…	7.5-18.0	WRD750	1.3:1	0.3	N-K	500	FPWRD750D24	FMWRD750D24	Al/Cu	Chromate/Painted	PDFSTEP
DH-750DRWHPECA…	7.5-18.0	WRD750	1.3:1	0.3	N-K	500	FPWRD750D24	FMWRD750D24	Al/Cu	Chromate/Painted	PDFSTEP

The repeated WRD840 rows and the separate 1000 W / 800 W entries are retained as they currently appear on the product page. PDF and STEP file labels are also retained in the model matrix.

Power Is Model-Specific

“Up to 1000 W” does not mean every model is rated for 1000 W.

The current table shows 1000 W and 800 W WRD840 entries, 600 W for WRD150, and 500 W for the listed WRD200 through WRD750 entries. Check power and interface on the same row.

For pulsed systems, the average-power row does not replace peak-power review. Include the pulse conditions in the RFQ.

WRD840800 / 1000 W

WRD150600 W

WRD200–750500 W

Bars are a visual comparison of the published average-power values, not a substitute for the selected model datasheet or approved drawing.

Part Number Guide

Read the code before comparing two quotations.

Published example DH-840DRWHPCANKPA

“840DR”Waveguide Size | WRD840

“WHPCA”Waveguide Type | High-Power Right Angle Waveguide to Coaxial Adapter

“WHPECA”Waveguide Type |High-Power End Launch Waveguide to Coaxial Adapter

“7-16”Connector Type | DIN 7-16

“N”Connector Type | High-Power N-type

“K”Interface Type | Female

“J”Interface Type | Male

“P”Flange Type | Rectangular Cover

“M”Flange Type | Rectangular Grooved

“A/C”Material | Aluminium, Cu

Finish note retained from the current page

All Dolph-MW models include an surtec/corrosion protection treatment and are painted flat black. Flanges are unplated, polished and surtec. Other finishes and paint colors are available upon request.

Before You Ask for a Price

A short RFQ can still be complete.

These are the details that usually stop the quote from going back and forth.

Send what is fixed. Mark what can change.

If you already have a drawing, STEP file, old part number or mating-part dimensions, send it. If you do not, the electrical and interface data below is enough to start a model review.

For a mixed waveguide route, the waveguide component sourcing page shows what to include when several parts need to match.

Operating bandLower and upper frequency limits, not only the center frequency.

WRD sizeThe waveguide family already used in your system.

Coax interfaceConnector series, gender and any cable or mating-part constraint.

Launch directionRight-angle WHPCA or end-launch WHPECA.

Power dataAverage power; for pulsed use add peak power, pulse width and duty cycle.

FlangeCover or grooved designation at the waveguide interface.

Mechanical spaceEnvelope, connector clearance, clocking and mounting limits.

Quantity and recordsPrototype / production quantity plus the drawings, STEP or test records you need.

Dolph Microwave waveguide components from a supplier product listing

Supplier Check

Ask for the evidence your project actually needs.

Dolph’s current sourcing page states that machining, forming/bending, brazing, plating, assembly and RF testing are handled in-house. If your order needs a dimensional report, RF data, inspection record, PDF drawing or STEP file, put that requirement in the RFQ so it is part of the quoted scope.

Review manufacturing and order-support information

Technical Downloads

Keep the drawings and flange reference with the RFQ.

Added family reference

Double Ridge Waveguide Components

Broader double-ridged component catalog for interface and family reference.

Download PDF

Existing page PDF retained

High Power Termination

This download remains available exactly as on the current product page.

Download PDF

Existing page PDF retained

FLANGE TYPE DESIGNATIONS INFORMATION

Reference for Dolph flange codes and standard waveguide flange designations.

Download PDF

Parts buyers often review with this adapter

Useful Technical Reading

Check the points that can change the final model.

CW vs. peak power and cooling Waveguide flange size guide Double-ridged waveguide product family Waveguide component sourcing Lower-power double-ridged waveguide-to-coax adapters Standard rectangular high-power waveguide-to-coax adapters

Common Questions Before Ordering

Clear up the interface before the purchase order.

Can I select the model by frequency only?

No. Use the full operating band together with WRD size, flange, connector and launch direction. Two parts can overlap in frequency and still be mechanically incompatible.

Does every model handle 1000 W average power?

No. The current table shows 1000 W and 800 W WRD840 entries, 600 W for WRD150, and 500 W for the listed WRD200 through WRD750 models. Use the power value on the same row as the selected model.

What is the difference between WHPCA and WHPECA?

WHPCA is the published code for the high-power right-angle waveguide-to-coaxial adapter. WHPECA is the end-launch version. Choose according to connector direction and the space available in your assembly.

What if my requirement is above 18.5 GHz?

The current high-power model rows on this page stop at 18.5 GHz, while the overview text references a broader 0.84–40 GHz family range. Send the exact band, WRD interface, connector and power requirement for confirmation. If your power requirement is lower, the standard double-ridged waveguide-to-coax adapter family also includes higher-frequency WRD models.

What should I send if I need a drop-in replacement?

Send the old part number, photos, drawing or measured interface dimensions, the two mating interfaces and any dimensions that cannot change. Add quantity and required PDF, STEP, inspection or RF records.

High-Power Waveguide Coaxial Adapter

High-Power Double-Ridged Waveguide to Coaxial Adapter