What frequency range does the ARB91816.1 cover?

The ARB91816.1 covers 2300 to 2690 MHz with a 390 MHz bandwidth.

Is the ARB91816.1 suitable for 5G and 4G LTE networks?

Yes. The antenna is designed for broadband mobile and wireless services across 2300-2690 MHz, including 5G/4G LTE deployments depending on the local band plan, and supports multi-band use cases such as IMT-E, WCS, MMDS and wireless access.

What gain does the ARB91816.1 provide across the band?

Gain Max is 14.5 dBi (2300-2500 MHz), 15 dBi (2500-2600 MHz) and 14.5 dBi (2600-2690 MHz).

Why is this antenna used in tunnel systems and at portals?

Its high gain, controlled beamwidth and +/-45° MIMO feeding help maintain stable coverage in reflective tunnel environments. It can also be used at portals/end-over pick-up points as a donor antenna for repeaters, DAS architectures or point-to-point links.

ARB91816.1 High Gain Broadband Directional Antenna 2300-2690 MHz MIMO +/-45° (5G/4G LTE)

Q: How does the antenna support MIMO?

It provides +/-45° cross polarization with double input (2x 4.3-10 female connectors) for MIMO-ready installations and polarization diversity.

Q: Is a flame retardant radome available?

Yes. The antenna is supplied with a fiberglass radome as standard, and a fiberglass flame retardant radome is available as an accessory/ordering option.

ARB91816.1 High Gain Broadband Directional Antenna 2300-2690 MHz MIMO +/-45° (5G/4G LTE)

660 - 3800 MHz MULTI-BAND

MOD. ARB91816.1

High gain broadband directional antenna for 2300-2690 MHz with MIMO +/-45° (double input).

Designed for tunnel portals and donor links supporting modern 5G/4G LTE and broadband wireless services (according to local band plans).

ARB91816.1 Independent Dual Feed Directional MIMO Yagi Antenna +-45° 2300 2690 MHz 16dBi

ELECTRICAL DATA

Frequency range (MHz): 2300 ÷ 2690

Bandwidth (MHz): 390

Nominal impedance (Ω): 50

Return loss / VSWR (dB): ≥ -14 / 1.5:1

Polarization: +/-45°

Gain Max 2300÷2500 MHz (dBi): 14.5

Gain Max 2500÷2600 MHz (dBi): 15

Gain Max 2600÷2690 MHz (dBi): 14.5

H/E beamwidth 2450 MHz -3 dB: 18°

Isolation (dB): ≥ 15

Connector: 2X 4.3-10f

Max Power (W): 150

Lightning protection: All metal parts and inner connector are D.C. grounded

MECHANICAL DATA

Dimension length (mm): Ø 120 x 820

Weight with clamps (kg): 4

Mounting (mm): Ø 80

Wind load front/side (180 km/h) (kg): 1.8 - 15.5

Ice protection: * fiberglass full radome

Packaging typ.: 150 x 20 x 20 cm - kg 5.5

MATERIALS

Aluminium, Teflon, Copper, Brass, Silver 5 µm, RoHS compliant

ACCESSORIES

ARB91816.1RI: FIBERGLASS FLAME RETARDANT RADOME

ORDERING INFORMATIONS

ARB91816.1: FIBERGLASS STANDARD RADOME

ARB918161RI: * FIBERGLASS FLAME RETARDANT RADOME

BROADBAND HIGH GAIN DIRECTIONAL ANTENNA - TYPE ARB91816.1

The ARB91816.1 is a high gain broadband directional antenna operating from 2300 to 2690 MHz, designed for modern mobile and wireless broadband services across this spectrum, including 5G/4G LTE deployments according to national band plans, as well as IMT-E, WCS, MMDS and other wireless access applications.

With +/-45° cross polarization and double input (2x 4.3-10f), the antenna is MIMO-ready and supports robust links in demanding RF scenarios. This configuration is particularly effective in reflective environments such as railway, highway/motorway, road and subway/metro tunnels, where controlled pattern, polarization diversity and mechanical stability are essential for continuity of service.

The antenna is commonly used at tunnel portals and transition areas and, where required by the system design, can act as a donor antenna supporting repeaters or DAS architectures and point-to-point radio links in the same frequency range. All parts of the antenna are electrically grounded for enhanced protection in field installations.

Supplied as standard with a fiberglass full radome for protection against shocks and severe atmospheric agents, also available in flame retardant version to meet safety-oriented procurement requirements in tunnel infrastructures.

Antenna designed and manufactured in Italy.

Frequently asked questions about ARB91816.1

Quick answers for designers and installers working on tunnel portals, donor links and broadband wireless coverage in the 2300-2690 MHz range.

What is the operating frequency range?

2300 to 2690 MHz (bandwidth 390 MHz).

Does it support MIMO and cross polarization?

Yes. It features +/-45° polarization with double input (2x 4.3-10 female connectors) for MIMO-ready installations.

What gain can be expected across the band?

Gain Max: 14.5 dBi (2300-2500 MHz), 15 dBi (2500-2600 MHz), 14.5 dBi (2600-2690 MHz).

Is a flame retardant radome available?

Yes. A fiberglass radome is supplied as standard, and a fiberglass flame retardant radome is available as an accessory/ordering option.

Why is it suitable for tunnels and portals?

High gain, controlled beamwidth and +/-45° MIMO feeding help improve robustness in reflective tunnel environments, especially at tunnel portals and transition zones.

How is lightning protection addressed?

All metal parts and the inner connector are D.C. grounded.

ARB91816.1 High Gain Broadband Directional Antenna 2300-2690 MHz MIMO +/-45° (5G/4G LTE) - Protel Antennas - Professional Antennas for Telecomunications

ARB91816.1 High Gain Broadband Directional Antenna 2300-2690 MHz MIMO +/-45° (5G/4G LTE)

Frequently asked questions about ARB91816.1

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