Why Choose This Product
Engineered to meet the absolute highest standards of signal integrity, this 617-2700MHz 3dB Hybrid Coupler is an essential passive routing matrix for neutral-host Distributed Antenna Systems (DAS) and co-location macro sites. It features a unique wideband architecture that extends downward to 617MHz, ensuring full compatibility with low-band 5G NR networks alongside global LTE bands. By achieving an ultra-low 3rd-order passive intermodulation (PIM) profile of ≤-161dBc, it drastically minimizes harmonic background noise, safeguarding uplink sensitivity and preventing network desensitization. The unit offers an even 3.0dB power split with high port isolation (23dB) and a total insertion loss of ≤3.1dB (including the split), housed in a robust, compact enclosure fitted with stable 4.3-10 Female interfaces.
Electrical Specifications
| Parameters | Specifications |
|---|---|
| Frequency Range | 617 – 2700 MHz (Extended 5G NR Low-Band to Sub-3GHz) |
| Insertion Loss | ≤ 3.1 dB (Including Theoretical Split Loss) |
| Port Isolation | ≥ 23 dB |
| Passive Intermodulation (PIM3) | briefs ≤ -161 dBc (@ 2 * 43 dBm) |
| Connector Type | 4.3-10 Female |
| Nominal Impedance | 50 Ω |
FAQ
- What makes a -161dBc PIM rating different from standard couplers?
- While standard telecom infrastructure uses components rated at -150dBc or -160dBc, this unit features a premium ≤-161dBc PIM profile. This stricter threshold represents an extremely high level of manufacturing precision and material quality, ensuring virtually zero internal passive intermodulation. This keeps the noise floor completely clean, allowing for maximized data speeds in ultra-dense, multi-carrier networks.
- How does the 617MHz capability support 5G deployment?
- Many legacy passive components cut off at 698MHz. This extended-range coupler operates down to 617MHz, providing native support for 5G NR Band n71. This allows operators to bundle wide-coverage low-band 5G signals into the same physical distribution network as existing 4G and sub-3GHz LTE frequencies.
- Why does the specification list the insertion loss as ≤3.1dB?
- In a 2×2 hybrid configuration, splitting an input signal exactly in half results in a natural theoretical mathematical split loss of 3.0dB based on the laws of physics ($1/2$ power per port). The listed specification of ≤3.1dB means the hardware itself contributes a mere 0.1dB of true physical trace and connection dissipation, highlighting its exceptional efficiency.
- How should a 2×2 hybrid matrix be terminated if only one output is used?
- To maintain the rated port isolation (23dB) and low VSWR across the full 617-2700MHz broadband spectrum, any unused input or output port must be properly terminated with a high-quality 50Ω dummy load. Failing to terminate the unused port will cause signal reflections that skew the power balance and potentially damage connected transmitters.
- What are the operational advantages of the 4.3-10 Female connector interface?
- The 4.3-10 connector interface is the modern industry standard for low-PIM telecommunications. By isolating the internal electrical contact plane from the external mechanical locking thread, it guarantees that the critical -161dBc PIM performance remains completely stable even if connected coaxial cables shift, twist, or experience heavy physical vibrations.
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Hybrid Coupler
