Premium 694-3800MHz RF Directional Coupler for Cellular DAS
When building a robust wireless antenna distribution system, managing signal splitting with absolute precision is critical. Hefei BRI Electronic & Technology Co., Ltd. (www.brielectronics.com) manufactures the industry’s most reliable directional rf coupler solutions tailored for advanced distributed antenna systems cellular (DAS).
Operating flawlessly across the massive 694-3800MHz frequency spectrum, this broadband directional coupler fully supports legacy UHF bands (700/800/900MHz) as well as the ultra-fast 3800MHz 5G frequencies. By providing perfectly calibrated signal sampling and distribution, it serves as the resilient backbone of your telecommunications infrastructure.
Exceptional Coupler Directivity and Isolation
To guarantee pristine signal distribution without backward reflection, our components boast outstanding coupler directivity and isolation. We manufacture a comprehensive range of coupling values to suit every node in your network architecture. Whether your blueprint calls for a standard 6 db directional coupler, a highly precise 10db directional coupler, or even custom configurations like a 3db directional coupler (hybrid) or a heavy-duty 40 db directional coupler for signal sampling, we deliver exactly what your system demands. The superior directivity and isolation of our rf directional coupler ensure that distinct signal paths never interfere with one another.
Ultra-Low PIM & High Power Capacity
Modern telecommunications demand high power handling with minimal interference. Engineered as a high power directional coupler, this unit safely manages up to 300W of average power. More importantly, it delivers industry-leading low PIM performance rated at ≤-160dBc@2*43dBm. This guarantees your coupler directional setup remains completely free from passive intermodulation noise, preserving maximum data throughput for cellular users.
The 4.3-10 Female Connector Advantage
Every directional rf coupler in this series is equipped with premium 4.3-10 female connectors. The 4.3-10 female connector advantage provides a significantly smaller footprint and lighter weight compared to traditional DIN interfaces. Crucially, 4.3-10 connectors offer drastically improved PIM stability regardless of the torque applied during installation. Coupled with a rugged IP65-rated weatherproof housing, these connectors make our couplers the ultimate choice for both indoor IBS and harsh outdoor DAS deployments.
Technical Specifications
Electrical Specifications
| Specification | Performance Value |
| Frequency Band | 694 – 3800 MHz |
| Component Type | rf directional coupler |
| Power Rating | ≤ 300 W (high power directional coupler) |
| Intermodulation (PIM) | ≤ -160dBc @ 2*43dBm |
| Isolation & Directivity | Excellent directivity with high isolation (≥ 22dB to 45dB depending on coupling value) |
| Impedance | 50 Ohms |
Environmental & Mechanical Specifications
| Specification | Value |
| Operating Temperature | -20°C to +60°C |
| Ingress Protection | IP65 (Weatherproof for outdoor use) |
| Connector Type | 4.3-10 Female (Low PIM, compact design) |
Frequently Asked Questions (FAQ)
Q1: What is the primary advantage of the 4.3-10 female connector on this rf directional coupler?
A1: The 4.3-10 female connector advantage lies in its compact size, lighter weight, and superior PIM stability. Unlike older connectors, 4.3-10 interfaces maintain ultra-low PIM (-160dBc@2*43dBm) independent of the torque applied during installation, ensuring reliable performance in demanding cellular networks.
Q2: What coupling values can I order for this broadband directional coupler?
A2: Hefei BRI manufactures a wide variety of coupling values to meet your precise network design needs. Options include a 3db directional coupler, 6 db directional coupler, 10db directional coupler, and a 40 db directional coupler, alongside many other standard increments.
Q3: How does coupler directivity impact my wireless antenna distribution system?
A3: Excellent coupler directivity and high isolation prevent signals from reflecting backward into the input port. This isolation ensures that your main signal path and your coupled signal path operate cleanly without causing interference or intermodulation noise in the system.
Q4: Is this high power directional coupler suitable for outdoor installations?
A4: Yes. Our couplers are housed in a rugged, IP65-rated enclosure, providing excellent protection against dust and water. Combined with a robust power rating of up to 300W, they are perfect for both indoor IBS and harsh outdoor DAS environments.
Partner with Hefei BRI Today
Source your RF passive products directly from the manufacturer. Visit www.brielectronics.com to request a custom quote and secure the reliable infrastructure your cellular networks demand.
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