Main Product Introduction
The ML-BF-2690-NF is a precision-engineered low band-pass filter optimized for modern wireless infrastructure. Covering the 2110MHz to 2690MHz spectrum, this unit effectively isolates critical frequency bands by delivering a high out-of-band attenuation of ≥60dB. With a maximum insertion loss of 1.5dB and a VSWR of ≤1.3:1, it ensures efficient power transfer for 30W systems. Housed in a compact 117*66*38mm aluminum enclosure with a durable black paint finish and N-Female connectors, it is built to withstand operating temperatures from -25 to +60°C, making it a dependable choice for both indoor and protected outdoor installations.
Application Scenarios
- Distributed Antenna Systems (DAS): Ensuring clean signal distribution across complex in-building networks.
- Base Transceiver Stations (BTS): Filtering out-of-band noise to prevent interference with adjacent carrier frequencies.
- In-Building Solutions (IBS): Optimizing cellular coverage by providing sharp frequency selection and suppression.
- Signal Conditioning: Managing spectral purity in multi-band systems where 2.1GHz to 2.6GHz signals must be isolated.
Electrical Specifications
| Parameters | Specifications |
|---|---|
| Model No. | ML-BF-2690-NF |
| Frequency Range | 2110 – 2690 MHz (4G/5G Mid-Band) |
| VSWR | ≤ 1.3:1 |
| Insertion Loss | ≤ 1.5 dB |
| Attenuation | ≥ 60 dB |
| Input Power (Max) | 30 W |
| Operating Range | -25 to +60℃ |
| Application (IP Grade) | IP65 (Weatherproof) |
| Port Connectors | N Female |
| Surface Finish | Black Paint |
| Net Weight | 1.0 KG |
| Outer Dimension | 117 * 66 * 38 mm |
| Packing | 1 Pce in box |
FAQ
- What does the IP65 rating mean for this filter?
- The IP65 rating indicates that the filter is dust-tight and protected against water jets from any angle. This makes it suitable for use in damp environments, such as basements or semi-outdoor enclosures used in DAS deployments.
- How effective is this filter at blocking unwanted signals?
- This model provides an attenuation of ≥60dB outside of the 2110-2690MHz passband. This high level of suppression significantly reduces interference from other radio sources, ensuring higher data throughput for the target network.
- Is the 30W power handling sufficient for BTS applications?
- A 30W average power rating is ideal for small cell BTS, remote radio heads (RRH), and the distribution branches of a DAS system where signal levels are managed after the primary high-power amplifier stage.
- What connector type is used for the ML-BF-2690-NF?
- The filter is equipped with standard N-Female connectors, providing a secure, 50Ω impedance-matched interface that is widely used in professional telecommunications hardware.
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