High Power RF Directional Coupler 350-3800MHz for Cellular and Tetra Networks
Deploying a high-capacity wireless antenna distribution system requires absolute precision and uncompromising hardware reliability. At Hefei BRI Electronic & Technology Co., Ltd. (www.brielectronics.com), we manufacture the ultimate rf coupler specifically tailored for distributed antenna systems cellular (DAS). Engineered from the ground up to support the ultra-wide 350-3800MHz frequency band, this component serves as the indispensable core of modern broadband direct coupled and matching rf networks.
- Wideband Tetra 350-3800MHz & Coupler in RF Applications
Unlike traditional limited-spectrum models, our rf antenna coupler operates highly efficiently across a massive 350-3800MHz frequency range. This incredible versatility allows for the seamless integration of Tetra public safety networks (starting at 350MHz), alongside traditional 700/800/900MHz cellular bands, all the way up to ultra-fast 3800MHz 5G networks. Any modern coupler in rf deployed today must handle this spectrum diversity, and our equipment does so with an impressive high power handling capability of up to 300W. This ensures reliable operation in the most demanding commercial environments.
- Optimized Directivity, Isolation, and Coupler Loss
The true efficiency of a high power directional coupler is defined by its ability to sample signals precisely without leakage or backward reflection. Our equipment offers excellent directivity and isolation , which ranges from ≥22 dB to ≥45 dB depending on the specific coupling value you select. Furthermore, we rigorously engineer our passive components to keep coupler loss (insertion loss) at industry-leading minimums. This insertion loss ranges from a mere 0.3 dB on a 30 dB model to 2.5 dB on the lowest coupling options. Whether your specific network blueprint requires a standard 6 db directional coupler, a highly accurate 10 db rf coupler, or a specialized 20 db rf coupler, we guarantee that the signal integrity of your broadband directional coupler remains entirely intact and free from interruptions.
- Ultra-Low PIM & The 4.3-10 Female Advantage
To eliminate the passive intermodulation noise that severely degrades modern high-speed networks, this coupler directional boasts superior low PIM performance, strictly rated at ≤-160dBc (with 2×43dBm). This pristine signal purity is heavily supported by the 4.3-10 female connector advantage. The 4.3-10 female connectors provide exceptionally stable PIM regardless of the torque applied during field installation, and they offer a lighter, more compact footprint compared to older interfaces. Combined with robust construction and a weatherproof IP65 rating , this high power rf directional coupler is fully prepared to withstand the harshest outdoor conditions while guaranteeing the longevity of your infrastructure.
Technical Specifications
General Electrical Specifications
Frequency Band: 350-3800MHz
VSWR: ≤1.25
Power Rating: ≤ 300 W
Intermodulation (PIM): ≤-160dBc (with 2×43dBm)
Impedance: 50 Ω
Coupling, Insertion Loss & Isolation Matrix
| Coupling (dB) | Tolerance (dB) | Insertion Loss (dB) | Isolation (dB) |
4.8 | +1.2 | 2.5 | ≥22 dB |
6 | ±1.2 | 1.8 | ≥24 dB |
7 | ±1.2 | 1.5 | ≥25 dB |
8 | ±1.5 | 1.2 | ≥26 dB |
10 | ±1.5 | 1.1 | ≥28 dB |
13 | ±1.5 | 0.8 | ≥30 dB |
15 | ±1.5 | 0.7 | ≥32 dB |
20 | ±2.0 | 0.5 | ≥35 dB |
30 | ±2.0 | 0.3 | ≥45 dB |
Environmental & Mechanical Specifications
Operating Temperature Range: -20 °C to +60 °C
Storage Temperature: -40 °C to +85 °C
Relative Humidity: 5% – 95%
Ingress Protection (Application): IP65
Dimensions: 177 * 57 * 30 mm
Weight: ≤0.65 kg
Connectors: 4.3-10 Female
Frequently Asked Questions (FAQ)
Q1: What exact frequency bands does this rf coupler support?
A1: This coupler supports an ultra-wide frequency range of 350-3800MHz, efficiently covering Tetra public safety networks, standard 700/800/900MHz cellular bands, and advanced 5G frequencies up to 3800MHz.
Q2: What coupling options are available for my DAS system?
A2: We offer multiple coupling values to perfectly match your broadband direct coupled and matching rf networks, including popular options like the 6 db directional coupler, 10 db rf coupler, and 20 db rf coupler.
Q3: What is the advantage of using 4.3-10 female connectors on this rf antenna coupler?
A3: The 4.3-10 female connectors offer a more compact size and guarantee ultra-low, stable PIM (≤-160dBc with 2×43dBm) regardless of installation torque, which is critical for maintaining signal quality in a high power rf directional coupler.
Q4: How does coupler loss impact the performance of this coupler in rf?
A4: We maintain coupler loss (insertion loss) at exceptionally low levels, ranging from just 0.3 dB to 2.5 dB depending on the coupling value. This ensures your coupler directional does not unnecessarily degrade the strength of the main signal traveling through your antenna distribution system.
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