Why is ARB9210 suitable for tunnel coverage?

It combines 10 dBi typical gain with a controlled directional pattern (E 65 deg / H 50 deg) and good front-to-back ratio (>= 25 dB), which helps focus coverage in railway, motorway, road and metro tunnels, including portal areas.

What does double independent feeding (+/-45 deg) mean in practice?

The antenna supports dual polarization (+/-45 deg) with selectable 1-port or 2-port outputs (XZ or XQ). This can be used for polarization diversity or dual-channel architectures, depending on the system design.

Which connector is used and what is the maximum power?

ARB9210 uses an N connector and supports max power 50 W.

ARB9210 2300-2600 MHz Directional Antenna Dual-Pol +/-45 deg for LTE/5G Tunnel Coverage

Q: Which frequency range does ARB9210 cover?

ARB9210 covers 2300 to 2600 MHz with 300 MHz bandwidth, 50 ohm impedance and VSWR <= 1.5.

Q: Can ARB9210 be used as a donor antenna in outdoor portal sites?

Yes. ARB9210 can be deployed as an outdoor donor/feeder directional antenna feeding tunnel infrastructures or radio corridors, where controlled capture and stable pointing are required.

Q: How is ARB9210 protected for outdoor installations?

It includes a fiberglass full radome for ice protection and outdoor durability. All metal parts are D.C. grounded for lightning protection practices.

ARB9210 2300-2600 MHz Directional Antenna Dual-Pol +/-45 deg for LTE/5G Tunnel Coverage

660 - 3800 MHz MULTI-BAND

MOD. ARB9210 – directional antenna 2300-2600 MHz with 10 dBi typical gain and dual polarization (+/-45 deg) with double independent feeding. Designed for engineered coverage in railway, motorway, road and metro tunnels, including portal / donor outdoor sites where controlled pointing and stable polarization behavior are required for modern LTE/4G and 5G use cases in this spectrum.

COD. ARB9210X – Yagi antennas frequency range 2300-2600 MHz.

ARB9210 MIMO Directional antennas with double independent feeding +- 45° 2300 - 2600 MHz 10 dBi

ELECTRICAL DATA

Frequency range (MHz): 2300 ÷ 2600

Bandwidth (MHz): 300

Gain typ. (dBi): 10

VSWR: ≤ 1.5

Nominal impedance (Ohm): 50

Isolation: ≥ 15

Polarization: +/- 45°

E beamwidth typ. -3 dB: 65°

H beamwidth typ. -3 dB: 50°

Front back ratio (dB): ≥ 25

Max power (W): 50

Connector: N

Lightning protection: All metal parts are D.C. grounded

MECHANICAL DATA

Dimension length x diameter: 220 x 170 mm

Weight (Kg): 1.5

Mounting clamps diameter: 40 x 114 mm - 2.5 Kg

Ice protection: Fiberglass full radome

ORDERING AND PACKAGING INFORMATIONS

Cod. ARB9210XZ: 1 connector output

Cod. ARB9210XQ: 2 connectors output

2300-2600 MHz directional coverage for tunnels and outdoor donor/portal sites

The 2300-2600 MHz spectrum is widely used for high-capacity broadband radio services and is commonly selected for LTE/4G and 5G deployments in many countries, including private and mission-focused networks where high throughput is required. In tunnel environments, this band can be used to support data services in parallel with traditional cellular layers, depending on the operator and the project band plan.

In railway tunnels (including high-speed lines), motorway and road tunnels and metro tunnels, controlling the radiation direction is essential to build predictable coverage along corridor-like propagation paths. The ARB9210 is designed for these engineered scenarios, including portal transition zones where the system designer needs focused illumination and reduced back radiation.

The antenna supports dual polarization (+/-45 deg) with double independent feeding. This architecture can be used for polarization diversity or dual-channel radio designs (site-specific), improving robustness where reflections and multipath are significant. For outdoor donor/portal sites, ARB9210 can be used as a donor / feeder directional antenna feeding tunnel infrastructures or radio corridors, when controlled capture and stable pointing are required.

A fiberglass full radome provides ice protection and outdoor durability, while all metal parts are D.C. grounded to support lightning protection practices in infrastructure installations.

Antenna designed and manufactured in Italy.

Frequently asked questions about ARB9210

Quick answers for broadband tunnel projects and outdoor donor/portal sites in the 2300-2600 MHz range.

Which frequency range does ARB9210 cover?

ARB9210 covers 2300 to 2600 MHz with 300 MHz bandwidth, 50 ohm nominal impedance and VSWR ≤ 1.5.

Why is it suitable for tunnels (railway, motorway, road, metro)?

Directional control helps focus coverage along the tunnel axis and at portals. ARB9210 provides 10 dBi typical gain, E 65° / H 50° beamwidth and front-to-back ≥ 25 dB.

Can ARB9210 be used as a donor/portal antenna outdoors?

Yes. It can be deployed as an outdoor donor / feeder directional antenna feeding tunnel infrastructures or radio corridors where controlled capture and stable pointing are required.

What is the difference between ARB9210XZ and ARB9210XQ?

ARB9210XZ is the 1 connector output version, while ARB9210XQ is the 2 connectors output version for dual-feed use cases.

How is the antenna protected for outdoor environments?

The antenna includes a fiberglass full radome for ice protection and outdoor durability. All metal parts are D.C. grounded for lightning protection practices.

Which connector and max power are specified?

The specified connector is N and the max power is 50 W.

ARB9210 2300-2600 MHz Directional Antenna Dual-Pol +/-45 deg for LTE/5G Tunnel Coverage - Protel Antennas - Professional Antennas for Telecomunications

ARB9210 2300-2600 MHz Directional Antenna Dual-Pol +/-45 deg for LTE/5G Tunnel Coverage

2300-2600 MHz directional coverage for tunnels and outdoor donor/portal sites

Frequently asked questions about ARB9210

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