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This page explains how Directional Couplers is classified within Computer, Electronic and Optical Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
Passive microwave/RF components that sample a portion of signal power from a transmission line in a specific direction while maintaining isolation from signals traveling in the opposite direction.
Technical details and manufacturing context for Directional Couplers
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Frequency Range | 0.5–18 GHz | Operating frequency band |
| Coupling Value | 6–30 dB | Nominal coupling attenuation |
| Coupling Flatness | ±0.5–±1.5 dB | Variation over frequency band |
| Insertion Loss | ≤0.2–≤0.5 dB | Main line loss excluding coupling |
| Directivity | ≥15–≥20 dB | Isolation minus coupling |
| VSWR (Main Line) | ≤1.2–≤1.5 | Impedance match |
| Impedance | 50 Ω | Standard system impedance |
| Power Handling | 10–500 W | Average power, CW |
| Operating Temperature | -40–85 °C | Full performance range |
| Connector Type | SMA–2.92mm | Interface options |
| Weight | 20–200 g | Depends on connector and body |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
Commonly used trade names and technical identifiers for Directional Couplers.
This component is essential for the following industrial systems and equipment:
| pressure: | Atmospheric to 1 atm sealed (non-pressurized RF environments) |
| other spec: | Frequency range: 0.5-40 GHz (varies by model), Coupling: 6-30 dB, Directivity: 15-40 dB, VSWR: 1.05-1.5:1 |
| temperature: | -40°C to +85°C (typical), up to +125°C for extended range models |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.
Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.
A practical evidence checklist for RFQ preparation and supplier evaluation.
CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.
A directional coupler samples a known fraction of signal power traveling in one direction on a transmission line, while isolating signals traveling in the opposite direction. This allows measurement of forward and reflected power, which is essential for network analysis.
Key parameters include frequency range, coupling value, coupling flatness, insertion loss, directivity, VSWR, impedance, power handling, operating temperature, connector type, and weight. Verify these against your application requirements and confirm with the manufacturer.
Directivity is the difference between isolation and coupling. Higher directivity means better separation of forward and reverse signals, to more accurate reflection and transmission measurements. Low directivity can cause errors in measuring small reflections.
Yes, directional couplers in this directory are rated for average power from 10 to 500 W (CW). However, actual power handling depends on the specific model, frequency, and environmental conditions. Always check the datasheet and confirm with the supplier.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.
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