Directional Coupler 9dB 75Ω 5-1500MHz for CATV and Wireless Communications
The 9dB directional coupler is designed for CATV and broadband wireless communication applications. It uses a surface-mount package, offering wide frequency coverage and low insertion loss. The product provides high coupling accuracy, excellent isolation, and return loss performance, ensuring directional signal distribution and port-to-port interference rejection. It is compatible with 260°C reflow soldering. Tape and reel packaging is suitable for automated SMT production lines. It is widely used in CATV distribution networks, broadband communication, and various RF signal distribution applications. It is a reliable choice for RF signal monitoring and power distribution.
Features:
- RoHS Compliant and Pb free
- Surface mount and available in tape and reel
- 260℃ reflow compatible
- 75Ω Characteristic Impedance
- Frequency: 1-1500MHz
- Operating temperature: -40℃ to 85℃
- Storage temperature: -55℃ to 100℃
Applications
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CATV distribution networks
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Broadband wireless communication
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RF signal distribution systems
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CATV amplifiers
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Signal monitoring and testing
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Communication base station power monitoring
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RF front-end modules
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Test and measurement equipment
ELECTRONICAL SPECIFICATIONS(25℃,Z=75Ω)
| Parameter | Test Conditions | Units | Min | Typ | Max |
|---|---|---|---|---|---|
| Main line Loss | 5-1500MHz | dB | － | 1.6 | 2.0 |
| Coupling | 5-1500MHz | dB | － | 9.0 | ±0.6 |
| Input Return Loss | 5-1500MHz | dB | 16.0 | 25.0 | － |
| Output Return Loss | 5-1500MHz | dB | 20.0 | 25.0 | － |
| Coupling return loss | 5-1500MHz | dB | 16.0 | 20.0 | － |
| Isolation | 5-1500MHz | dB | 18.0 | 22.0 | － |
FAQ
Q: How do you control quality?
A: We ensure every product meets specifications through incoming quality inspection (IQC) and 100% quality testing before shipment.
Q: How to apply for samples? What is the lead time?
A: You can submit a sample application through our website or email. Samples are free of charge and will be shipped within 3-5 working days. Mass order lead time is generally 2-8 weeks; custom products will be confirmed separately.
Q: What is the impact of the isolation specification on system performance?
A: Isolation ≥18dB means signal leakage between the output and coupled ports is minimal, ensuring directional signal distribution and preventing signal feedback and crosstalk from affecting system performance.
Q: Do you support small trial orders?
A: Yes. Small trial orders (below the standard MOQ) can be negotiated and receive the same quality standards and delivery commitments as mass orders. Please contact our sales team for details.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.