Product Overview
The MNDC-8274-20-DF is a high-performance 20dB Directional Coupler designed for efficient signal sampling and distribution in 2G, 3G, and 4G/LTE infrastructures. With a wide frequency coverage of 790-2690MHz, it is a versatile component for In-building Solutions (IBS), Base Transceiver Stations (BTS), and Distributed Antenna Systems (DAS). This coupler is engineered to handle a high average power of 200 Watts while maintaining an exceptionally low insertion loss (≤0.4dB), ensuring that the primary signal path remains strong and stable throughout the network.
Technical & Electronical Specifications
| Parameter Item | Specification Details |
|---|---|
| Model Number | MNDC-8274-20-DF |
| Frequency Range | 790 - 2690 MHz |
| Coupling Value | 20 dB |
| Insertion Loss | ≤ 0.4 dB |
| VSWR | ≤ 1.3 |
| Average Power Handling | 200 W |
| Characteristic Impedance | 50 Ohm |
| Connector Type | 7/16 DIN-Female |
NOTE: All technical specifications can be customized to meet specific project needs. Our company provides a diverse range of directional couplers with different power levels and connector types.
Our Professional Services
- Full technical support for high-power directional couplers in cellular infrastructures.
- OEM & ODM manufacturing available for specific frequency and coupling requirements.
- 24/7 direct access to our dedicated sales and engineering teams for fast inquiry response.
- Committed to delivering robust RF solutions that ensure long-term network stability.
Frequently Asked Questions
- Q1: Why is a 20dB coupling value used in typical DAS networks?
- A: A 20dB Coupling Value allows for a small, controlled portion (1%) of the signal to be sampled or diverted to another antenna branch without significantly impacting the power of the main signal path. This is ideal for multi-floor coverage where the primary signal must continue to subsequent levels.
- Q2: What are the benefits of DIN-Female connectors for 200W applications?
- A: DIN (7/16) connectors are specifically designed for high-power applications. They provide a more robust mechanical connection and superior power handling compared to smaller connectors like N-type, ensuring lower PIM and better heat dissipation at 200W power levels.
- Q3: Does the 790-2690MHz range support global frequency standards?
- A: Yes, this Wide Frequency Band covers all major global 2G/3G/4G bands, including the 800MHz digital dividend, 1800MHz, 2100MHz, and 2600MHz LTE bands, making it a truly universal component for global mobile network deployments.
- Q4: How does a low insertion loss of ≤ 0.4dB benefit the overall network design?
- A: Low Insertion Loss minimizes the energy wasted as heat as the signal passes through the device. In a long DAS chain with multiple components, keeping the loss per device at ≤ 0.4dB is essential for ensuring that the last antenna in the series still has sufficient power to provide adequate coverage.
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