Construction and port details
Coupling structure
Multi-hole block construction, Tchebyscheff coupling-hole distribution and a precision-ground tapered load element in the secondary arm.
Ports and finish
Datasheet: 3 Waveguide Ports; Coupling Port 2*UG-387/U; Flange UG-387/U; Cu; Gold Plated; Black Paint. Confirm the port arrangement and finish surfaces on the drawing.
Drawing discrepancy
Electrical table: 20±1.5 dB. Outline drawing: 10 dB marking. The original drawing is preserved; obtain the confirmed 20 dB drawing before design release.
Unverified family values
Old webpage: 1.2–40 GHz, 1.07:1, 5 kW and 0.06 dB. These are not WR10 model ratings. Its 1 dB insertion-loss statement is also absent from the model sheet.
Product and interface views
Specifications and configuration details
DH-900WBDC20PPPC electrical and mechanical data
| Parameter | Published specification |
|---|---|
| Model | DH-900WBDC20PPPC |
| Frequency Range | 75.0-110.0 GHz |
| Coupling (dB) | 20±1.5 dB |
| Main Line VSWR | ≤1.2:1 |
| Sec. Line VSWR | ≤1.3:1 |
| Directivity (dB) | ≥40 dB |
| Port Style | 3 Waveguide Ports |
| Coupling Port | 2*UG-387/U |
| Flange | UG-387/U |
| Material | Cu |
| Surface Treatment | Gold Plated |
| Surface Coating | Black Paint |
| Size | 120*22*28 mm |
Additional webpage figures: scope to confirm
| Published entry | Value retained | Selection note |
|---|---|---|
| Insertion loss in short description | 1 dB | Not stated in the linked model-specific sheet; confirm for this model. |
| Frequency in older family body | 1.2 GHz to 40 GHz | Not the operating band of the WR10 model above. |
| VSWR in older family body | 1.07:1 | Not the model-specific Main Line or Sec. Line VSWR. |
| Maximum power in older family body | 5 kW | Not established as a WR10 rating. |
| Insertion loss in older family body | 0.06 dB | Not established as a WR10 rating. |
| Pressurization Capability | Designed for use in pressurized applications | No model-specific pressure rating or seal configuration is provided. |
| Outline drawing annotation | 10dB | Differs from the 20±1.5 dB electrical specification; confirm the approved drawing. |
Drawings and original documents
Datasheet_Waveguide Block Type Directional Coupler for DH-900WBDC20PPPC
Download PDFView original pages (2)
Related products
For a different coupling configuration, see Waveguide Couplers. For measurement setup hardware, see Waveguide Calibration and Verification Kits.
Include these details in your inquiry
- Model DH-900WBDC20PPPC or required alternative
- Operating frequency and measurement function
- Coupling, directivity and insertion-loss requirements
- CW/peak input power and duty cycle
- Flange and port-orientation requirements
- Approved drawing and quantity
