Double Ridge Waveguide Pressure Window
Dolph Microwave’s Double-Ridge Waveguide Pressure Windows deliver reliable environmental sealing (up to 45 PSIG) with VSWR ≤1.15:1 and power handling up to 1,000 W. Available in WRD840 to WRD180 sizes, these corrosion-resistant windows use Teflon, fiberglass, or ceramic materials for minimal signal loss. Ideal for radar, aerospace, and telecom applications, they feature Surtec® anti-corrosion treatment and customizable flange options (aluminum/copper). Trusted for durability and performance in extreme conditions.
Product Overview
Dolph Microwave’s Double-Ridge Waveguide Pressure Windows are precision-engineered solutions designed to environmentally isolate waveguide systems while maintaining optimal RF performance. These windows support frequencies from 0.84 GHz to 40 GHz (model-dependent), handle pressures up to 45 PSIG, and sustain average power levels up to 1,000 W (800 W for high-frequency models). Constructed with low-loss materials such as Teflon, fiberglass, or ceramics, they ensure minimal insertion loss (VSWR ≤1.15:1) and robust protection against moisture, dust, and corrosive environments. Ideal for high-power and mission-critical applications, they are available in waveguide sizes from WRD840 to WRD180.
Key Features
- Broad Compatibility: Compatible with waveguide sizes WRD840 to WRD180, covering frequency ranges up to 40 GHz.
- High-Pressure Resilience: Rated for pressures up to 45 PSIG, ensuring reliability in harsh environments.
- Material Versatility: Choose from Teflon, fiberglass, or ceramic windows; aluminum or copper alloy flanges with iridite, chromate, or silver-plated finishes.
- Low-Loss Design: Optimized for VSWR below 1.15:1 to minimize signal reflection and maximize power transfer.
- Custom Configurations: Optional flange types (flat or grooved), pressure gauges, and specialized finishes (e.g., Surtec corrosion protection).
Applications
These pressure windows are integral to systems requiring environmental sealing and high-power RF integrity, including radar systems for military/aviation, satellite communications (SATCOM) ground stations, aerospace telemetry, and scientific research setups involving vacuum or pressurized chambers. Their corrosion-resistant construction also makes them suitable for marine and industrial environments.
Additional Notes
All Dolph Microwave waveguide windows undergo rigorous polishing and Surtec anti-corrosion treatment. Standard units are unpainted but can be customized with colors or specialized coatings. For vacuum-sealed applications, ceramic or quartz materials are recommended. Consult our RF engineering team for tailored solutions, including non-standard waveguide sizes or extreme environmental compliance.
| MODEL | FREQ. RANGE (GHz) | WG SIZE | VSWR Max. | PRESSURE (PSIG) | AVG POWER (W) | WINDOW MATERIAL | FLANGE TYPE | MATERAL | FINISH | DATASHEET | ||
| COVER | GROOVED | |||||||||||
| DH-840DRWPW… | 0.84-2.0 | WRD840 | 1.15:1 | Up to 45 | Up to 1000 | Teflon/Fiberglass/Ceramics | FPWRD840U24 | FMWRD840U24 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-150DRWPW… | 1.5-3.6 | WRD150 | 1.15:1 | Up to 45 | Up to 1000 | Teflon/Fiberglass/Ceramics | FPWRD150D24 | FMWRD150D24 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-200DRWPW… | 2.0-4.8 | WRD200 | 1.15:1 | Up to 45 | Up to 1000 | Teflon/Fiberglass/Ceramics | FPWRD200D24 | FMWRD200D24 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-250DRWPW… | 2.6-7.8 | WRD250 | 1.15:1 | Up to 45 | Up to 1000 | Teflon/Fiberglass/Ceramics | FPWRD250D30 | FMWRD250D30 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-350DRWPW… | 3.5-8.2 | WRD350 | 1.15:1 | Up to 45 | Up to 1000 | Teflon/Fiberglass/Ceramics | FPWRD350D24 | FMWRD350D24 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-475DRWPW… | 4.75-11.0 | WRD475 | 1.15:1 | Up to 45 | Up to 1000 | Teflon/Fiberglass/Ceramics | FPWRD475D24 | FMWRD475D24 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-500DRWPW… | 5.0-18.0 | WRD500 | 1.15:1 | Up to 45 | Up to 1000 | Teflon/Fiberglass/Ceramics | FPWRD500D36 | FMWRD500D36 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-580DRWPW… | 5.8-16.0 | WRD580 | 1.15:1 | Up to 45 | Up to 1000 | Teflon/Fiberglass/Ceramics | FPWRD580D28 | FMWRD580D28 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-650DRWPW… | 6.5-18.0 | WRD650 | 1.15:1 | Up to 45 | Up to 800 | Teflon/Fiberglass/Ceramics | FPWRD650D28 | FMWRD650D28 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-700DRWPW… | 7.0-18.5 | WRD700 | 1.15:1 | Up to 45 | Up to 800 | Teflon/Fiberglass/Ceramics | FPWRD700D26 | FMWRD700D26 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-750DRWPW… | 7.5-18.0 | WRD750 | 1.15:1 | Up to 45 | Up to 800 | Teflon/Fiberglass/Ceramics | FPWRD750D24 | FMWRD750D24 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-110DRWPW… | 11.0-26.5 | WRD110 | 1.15:1 | Up to 45 | Up to 800 | Teflon/Fiberglass/Ceramics | FPWRD110C24 | FMWRD110C24 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-180DRWPW… | 18.0-40.0 | WRD180 | 1.15:1 | Up to 45 | Up to 800 | Teflon/Fiberglass/Ceramics | FPWRD180C24 | FMWRD180C24 | Al/Cu | Chromate/Painted | DWG | STEP |
| Part Number Guide: DH-840DRWPW30PMA600 "840DR"—Waveguide Size | WRD840 "WPW"—Waveguide Type | Waveguide Pressure Windows "30"—Thickness | 30 mm "P"— Flange Type | Rectangular Flat "M"— Flange Type | Rectangular Grooved "A/C"— Material | Aluminium, Cu "600"— Handling Power | 600 W CW. |
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| Note: 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. |
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