Main Product Introduction
The 300-4000MHz 4-Way Cavity Power Splitter is a “universal” distribution solution for modern wireless infrastructure. By utilizing a cavity architecture, this device minimizes internal resistive loss, making it highly efficient for high-power macro base stations and extensive indoor DAS projects. Its frequency range is uniquely broad, allowing a single component to manage everything from low-frequency public safety channels to high-capacity 3.5GHz 5G services. Whether deployed on a tower or within a building, its robust construction ensures minimal intermodulation and maximum reliability for multi-carrier networks.
Application Scenarios
- Public Safety & TETRA Systems: Distributing emergency communication signals in complex indoor environments and tunnels.
- Multi-Band 5G/4G Infrastructure: A centralized hub for splitting combined cellular signals into four antenna branches.
- Neutral Host DAS: Ideal for shared infrastructure supporting multiple operators across different frequency bands.
- Outdoor Macro Sites: Reliable signal splitting for high-power transmitter setups requiring weather-resistant components.
Electrical Specifications
| Parameters | Specifications |
|---|---|
| Frequency Range | 300 – 4000 MHz (UHF to 5G Mid-band) |
| Output Port Number | 4-Way |
| Average Power | 300 W |
| Insertion Loss | ≤ 0.85 dB (Excluding theoretical split loss) |
| VSWR | ≤ 1.35 (@300-380MHz) | ≤ 1.30 (@380-4000MHz) |
| Connector Type | N Female |
| Environmental Protection | IP65 (Indoor & Outdoor Rated) |
| Operating Temperature | -35℃ to +65℃ |
| Relative Humidity | 5% – 95% |
| Finish / Color | Black or Customized |
FAQ
- What are the main advantages of a Cavity Splitter?
- Cavity splitters use an air dielectric and have no internal resistors. This allows them to handle significantly higher power and provide much lower insertion loss than Wilkinson-style microstrip splitters.
- What is the total signal loss per port for this 4-way split?
- The theoretical split loss is 6.0 dB. Because the cavity design is highly efficient, the actual measured loss per port is typically only 6.2 dB to 6.5 dB across the entire frequency range.
- Does this splitter support the 380MHz and 3.5GHz bands?
- Yes, it is fully optimized to cover the 380-3800MHz spectrum, making it one of the few splitters that can support both legacy Public Safety bands and modern 5G mid-bands simultaneously.
- How should I treat unused output ports?
- CRITICAL: To maintain the system’s impedance matching and VSWR, any unused port must be terminated with a 50-ohm N-type dummy load. This ensures the remaining active ports function within their specified performance levels.
- Is this model rated for outdoor use?
- Yes, the rugged aluminum enclosure is designed for durability. However, for permanent outdoor installations, it is highly recommended to use professional weatherproofing kits on the N-type connector interfaces to prevent moisture ingress.
