Wideband 2×2 Hybrid Coupler | 3dB 90 Degree Hybrid Coupler

Ensure flawless signal integration across your cellular distributed antenna system (DAS) with our premium 2×2 hybrid coupler. Manufactured to exacting standards by Hefei Bri Electronic & Technology Co.,Ltd, this wideband hybrid coupler seamlessly covers the entire spectrum from Tetra 400MHz up to the 5G 3800MHz band.

Engineered to operate as a high-efficiency 3 db coupler hybrid combiner, this unit combines two wireless carrier signals into a single feed while maintaining strict port isolation. The true 90 degree hybrid coupler design ensures phase accuracy and optimal power distribution, making it an essential RF passive product for neutral host DAS, in-building wireless coverage, and multi-carrier base station deployments.

Core Technical Specifications

We know that modern B2B telecom infrastructure requires stringent performance parameters. This coupler delivers the exact specifications needed for high-end international integrations:

The Advantage of High Isolation (≥30dB)

In a densely packed cellular distributed antenna system, signal integrity is paramount. This coupler is engineered with an exceptional isolation rating of ≥30dB, providing a distinct advantage over standard market alternatives:

• Transmitter Protection: High isolation prevents signal leakage between the input ports. When combining two high-power base stations (BTS), ≥30dB isolation guarantees that power from one transmitter does not feed back into and damage the other.

• Reduced Intermodulation: By keeping the RF paths strictly separated, it drastically reduces the chances of creating unwanted passive intermodulation (PIM) products, maintaining the ultra-low PIM rating of -160dBc.

• System Stability: It ensures the entire DAS network remains balanced and stable, even when frequency bands are closely spaced.

Deep Dive: 3dB Hybrid Coupler Applications

A 3db 90 degree hybrid coupler is a highly versatile RF component used primarily to combine or split signals in complex cellular networks. Because it splits power equally (resulting in a 3dB loss per output) and introduces a 90-degree phase shift, it offers several critical operational benefits:

1. Multi-Carrier Combining: It functions as a 3 db coupler hybrid combiner, allowing two different frequency bands (e.g., a Tetra 400MHz signal and a 3800MHz 5G signal) to share the same coaxial infrastructure without interference.

2. Balanced Amplifiers: The 90-degree phase shift is utilized in amplifier design to cancel out reflected signals, improving the overall VSWR and protecting sensitive radio equipment.

3. Built-In Redundancy: If one input fails, the remaining signal is still evenly distributed across both N-female output ports, ensuring that no sector of the building loses coverage entirely.

Technical Showdown: 2×2 Hybrid Coupler vs. 4×4 Hybrid Matrix

When expanding your DAS infrastructure, choosing between a standard 2×2 hybrid coupler and a larger hybrid matrix depends on your carrier density and sectorization needs.