Precision Low Power Termination
Dolph Microwave Precision Low Power Termination delivers ultra-low VSWR (≤1.05) across 0.84–40 GHz, ideal for radar, satellite, and 5G systems. Built with 6061 aluminum bodies, copper-plated flanges, and precision conical load elements, it ensures minimal reflection and IP65-rated durability. Customizable with Surtec corrosion protection and flat/grooved flanges (WRD840-WRD180), this termination guarantees reliability in harsh environments.
Product Overview
Dolph Microwave’s Precision Low Power Termination is engineered for superior RF/microwave signal absorption in waveguide systems, featuring a VSWR of ≤1.05 across frequencies from 0.84 GHz to 40 GHz. Constructed from 6061 aluminum with copper-plated flanges, these terminations ensure minimal signal reflection and high durability. Ideal for low-power applications (5–10 W CW), they comply with IP65 standards for environmental resistance. Custom conical load elements and Surtec-treated surfaces guarantee long-term reliability in harsh conditions.
Key Features
- Ultra-Low VSWR: ≤1.05 across all frequency bands for precision signal termination.
- Robust Construction: 6061 aluminum bodies with copper-plated flanges (flat/grooved options).
- IP65 Protection: Dustproof and water-resistant for industrial environments.
- Wide Frequency Range: 0.84–40 GHz, supporting WRD840 to WRD180 waveguide sizes.
- Customizable: Optional finishes (chromate/painted) and flange configurations (e.g., FPWRD840U24, FMWRD150D24).
Applications
- Test & Measurement: Calibration of radar, satellite, and wireless communication systems.
- Radar Systems: Signal termination in phased-array and Doppler radar.
- Satellite Comms: Ground station and onboard waveguide systems.
- 5G Infrastructure: Base station testing and signal integrity validation.
| MODEL | FREQ. RANGE (GHz) | WG SIZE | VSWR | AVG POWER CW (W) | FLANGES TYPE | LENGTH (mm) | INGRESS PROTECTION | MATERIAL | FINISH | DATASHEET | ||
| COVER | GROOVED | |||||||||||
| DH-840DRWL… | 0.84-2.0 | WRD840 | 1.05:1 | 10 | FPWRD840U24 | FMWRD840U24 | 720 | IP65 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-150DRWL… | 1.5-3.6 | WRD150 | 1.05:1 | 10 | FPWRD150D24 | FMWRD150D24 | 650 | IP65 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-200DRWL… | 2.0-4.8 | WRD200 | 1.05:1 | 10 | FPWRD200D24 | FMWRD200D24 | 340 | IP65 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-250DRWL… | 2.6-7.8 | WRD250 | 1.05:1 | 10 | FPWRD250D30 | FMWRD250D30 | 250 | IP65 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-350DRWL… | 3.5-8.2 | WRD350 | 1.05:1 | 10 | FPWRD350D24 | FMWRD350D24 | 260 | IP65 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-475DRWL… | 4.75-11.0 | WRD475 | 1.05:1 | 10 | FPWRD475D24 | FMWRD475D24 | 200 | IP65 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-500DRWL… | 5.0-18.0 | WRD500 | 1.05:1 | 5 | FPWRD500D36 | FMWRD500D36 | 210 | IP65 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-580DRWL… | 5.8-16.0 | WRD580 | 1.05:1 | 5 | FPWRD580D28 | FMWRD580D28 | 210 | IP65 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-650DRWL… | 6.5-18.0 | WRD650 | 1.05:1 | 5 | FPWRD650D28 | FMWRD650D28 | 102 | IP65 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-700DRWL… | 7.0-18.5 | WRD700 | 1.05:1 | 5 | FPWRD700D26 | FMWRD700D26 | 140 | IP65 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-750DRWL… | 7.5-18.0 | WRD750 | 1.05:1 | 5 | FPWRD750D24 | FMWRD750D24 | 140 | IP65 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-110DRWL… | 11.0-26.5 | WRD110 | 1.05:1 | 5 | FPWRD110C24 | FMWRD110C24 | 150 | IP65 | Al/Cu | Chromate/Painted | DWG | STEP |
| DH-180DRWL… | 18.0-40.0 | WRD180 | 1.05:1 | 5 | FPWRD180C24 | FMWRD180C24 | 109 | IP65 | Al/Cu | Chromate/Painted | DWG | STEP |
| Part Number Guide: DH-840DRWL1.05PMA10 "840DR"—Waveguide Size | WRD840 "WL"—Waveguide Type | Precision Low Power Loads "1.05"— VSWR | 1.05:1 "P"— Flange Type | Rectangular Flat "M"— Flange Type | Rectangular Grooved "A/C"— Material | Aluminium, Cu |
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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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