Port and Container Terminal Antenna Solutions for Crane 5G and Wi-Fi Links
A container terminal is a moving RF environment: quay cranes travel along the berth, straddle carriers cross the yard, and stacked containers change the reflection profile hour by hour. Links that work at commissioning can degrade as the stack grows. RF element builds 5G panels, 5 GHz bridge panels and parabolic dishes for crane links, AGV coverage and terminal backhaul.
What makes a terminal harder than a fixed industrial site
The reflector moves, and it is made of steel
Container stacks and crane booms are large flat metal surfaces that appear and disappear from the path. A link designed for a clear line of sight may be obstructed at a different yard state, so fade margin and antenna height matter more than nominal gain.
Cranes are a moving platform
A quay crane travels the length of the berth while its boom moves up and down. The antenna on the crane must hold alignment across that travel, which usually means a wider beamwidth or a tracking mount rather than the highest-gain dish available.
Salt fog and 24-hour operation
Salt-laden air attacks connectors, hardware and radomes. Aluminium enclosures, sealed interfaces and stainless fasteners are baseline requirements, and maintenance access is often the difference between a link that survives and one that does not.
Antenna selection by deployment case
Terminal links split into three jobs: crane-to-gateway, yard backbone and mobile equipment. Each has a different trade-off between gain and beamwidth. A 34 dBi dish is right for a fixed point-to-point hop; it is the wrong choice for a crane that moves 300 m along the berth.
| Antenna type | Frequency range | Gain | Typical use |
|---|---|---|---|
| 5G MIMO panel | 698-4200 MHz | 5-6.5 dBi | Crane and yard 5G coverage |
| Bridge panel | 5150-5850 MHz | 18 dBi | Fixed point-to-point Wi-Fi bridge |
| Parabolic dish | 4900-6000 MHz | 31-33 dBi | Long yard hops with clear line of sight |
| Sector panel | 5150-5850 MHz | 19 dBi | Yard point-to-multipoint distribution |
Band, gain and polarization trade-offs
At 5 GHz a 33 dBi dish has a beamwidth of about 4 degrees. A quay crane that travels 300 m along the berth will leave that beam within the first few metres of travel. An 18 dBi panel with a 30-degree beam gives up roughly 15 dB of gain but stays aligned, which is usually the better trade on a moving platform.
Rain fade at 5 GHz is modest compared with 23 GHz, but the margin still has to come from somewhere: either antenna gain or a shorter path. On a terminal the path is fixed by the yard geometry, so gain is the only lever left once the mounting points are set.
Recommended antennas
The four antennas below map to those three jobs. All values come from the product specification tables, including the dish gain range and its 4-degree beamwidth.
High-Performance 5G Outdoor Antenna
5GHz Wireless Bridge Panel Antenna
5GHz MIMO Parabolic Dish Antenna
5GHz MIMO Sector Antenna
Frequency, gain, beamwidth and connector values are taken from the linked product specification tables. Confirm the final configuration against the datasheet before ordering.
Installation and deployment notes
Terminal installations are dominated by mechanical and environmental detail. These are the items that most often decide whether a link holds through a full yard cycle.
- Set antenna height above the maximum container stack plus the first Fresnel zone, not just above the current stack.
- For moving cranes, choose beamwidth for the travel envelope; a narrow dish will lose alignment at the ends of the berth.
- Use aluminium or stainless enclosures and sealed connectors; inspect radomes and hardware on a fixed quarterly schedule.
- Keep coax runs short and use a remote radio head where the mast allows it.
- Record received signal level at several yard states, not only at commissioning with an empty stack.
Frequently asked questions
How far can a crane link reach?
There is no single figure: it depends on antenna gain at both ends, transmit power, cable loss, rain fade and the clearance over the stack. A 33 dBi dish pair on a clear path behaves very differently from an 18 dBi panel pair behind a container stack. We will run the link budget with your geometry rather than quote a distance.
Should the crane use a dish or a panel?
A panel, in most cases. A dish concentrates energy into a few degrees, which is ideal for a fixed hop and fragile for a platform that travels the berth. A panel with a wider beam keeps the link through the travel envelope without a tracking mount.
Is 5 GHz Wi-Fi still viable in a terminal?
Yes for bridge and backhaul links where the path is controlled. It is less suitable for dense mobile coverage, where 5G or a private LTE network gives better mobility and interference management. Many terminals run both.
Can you supply antennas with our connector and mounting interface?
Yes. Connector type, mounting plate and radome colour are part of our customisation scope, and we can match an existing mechanical interface so that the antenna drops onto your current bracket.
Related technical reading
Related industries
Container terminals combine steel structures, salt air and vehicles that never stop moving. These sectors face the same mix.
What to send for an antenna shortlist
Send these five items and we can propose models with pattern data instead of a catalogue list.
- Yard layout, stack height and crane travel envelope
- Link distances for each hop
- Radio model, band and transmit power
- Mounting interface on the crane and on the mast
- Salt-fog exposure and wash-down routine
Send your layout, get an antenna shortlist
Send the yard layout, crane travel envelope and stack height, and we will propose antenna types and positions for a link budget.
Request a quotation