Professional drones and unmanned platforms are used in increasingly complex applications: inspection, surveillance, security, environmental monitoring, precision agriculture, logistics, defense, scientific research, marine operations and support for critical infrastructures.

In these scenarios, the quality of the radio link is not a secondary detail. Loss of communication, degradation of GNSS reception, unstable telemetry or an unreliable video link can compromise the mission, reduce the effectiveness of the platform and generate operational risks.

For this reason, the antenna should not be considered a simple component to be added at the end of the project. It is part of the RF architecture and can contribute to link continuity, communication stability and consistency between equipment, platform and operating conditions.

ElettroMagnetic Services Srl designs and manufactures custom antennas and tailor-made antenna systems for professional drones, UAVs, UGVs, ROVs and unmanned platforms, developed starting from the Customer’s electrical, mechanical, environmental and installation requirements.

Custom antennas for drones and antennas for professional drones must be developed by considering, from the very beginning, the real platform, the RF functions to be supported, the available positioning, weight and size constraints, the operating environment and the level of reliability required by the mission.

We do not supply complete drones, nor do we develop active electronics, modems, radios, communication equipment or integrated unmanned systems. Our contribution concerns the antenna part: design, optimisation, manufacturing and characterisation of custom antennas and antenna systems intended to be connected to the Customer’s RF equipment.

The objective is to help the Customer develop an antenna solution that is consistent with the RF architecture, the real platform and the expected operational scenario.

Antennas for drone data links, GNSS, telemetry and video links

Several RF functions can coexist on a professional drone: remote control, telemetry, data link, video link, GNSS, cellular communications, Wi-Fi, ISM links or solutions dedicated to the specific application.

Drone data link antennas, GNSS antennas for drones, antennas for drone telemetry and antennas for drone video links must therefore be evaluated not as isolated components, but as parts of an RF configuration in which position, polarisation, orientation, distance from other antennas and interaction with the structure can affect link continuity.

The point is not only to choose an antenna for each function. The real issue is to understand how each antenna will work once installed on the platform, close to other equipment, cabling, batteries, sensors, motors, composite materials or metal structures.

A standard solution may appear adequate on paper, but behave differently when integrated into the real drone. This can affect link continuity, telemetry stability, video link quality or GNSS reception.

A custom design makes it possible to address these aspects from the beginning, developing an antenna solution designed for the platform, the mission and the expected operating conditions.

Why the antenna is critical in professional drones

In professional drones, the antenna can influence how the platform communicates, transmits data, receives navigation signals and maintains the link during the mission.

The criticality does not always depend on the radio equipment or on the protocol used. It often arises from the interaction between antenna and platform: a non-optimal position, shielding introduced by the structure, proximity to other antennas or a mechanical constraint can modify RF behaviour compared to what is expected under ideal conditions.

For this reason, it is not sufficient to choose an antenna based only on the technical specifications shown in the datasheet. It is necessary to evaluate how the antenna will work in the real configuration, taking into account the platform, the installation position and the operating conditions.

Designing a custom antenna means reducing the risk of discovering RF criticalities only during testing, validation or operational use.

Antenna integration on UAV, UGV and ROV platforms

When we talk about antenna integration, we refer to the design and optimisation of the antenna solution in relation to the platform on which it will be installed.

A UAV has different constraints from a UGV, and an ROV presents still different conditions. The operating environment, the platform structure, the mechanical stresses, the available position for the antenna and the way the RF link is used all change.

In all these cases, the antenna should not be evaluated as an isolated component. It must be designed consistently with the real platform, the planned RF equipment and the function it will have to support.

This approach makes it possible to address the antenna part while choices regarding position, dimensions, cabling, protections and coexistence with other RF systems can still be optimised.

Custom antennas for UAVs

In UAVs, link continuity is one of the most important elements for mission safety and effectiveness.

An unsuitable antenna can reduce the real range of the data link, generate shadow areas, degrade GNSS reception or make telemetry and video links unstable. This can happen even when the antenna shows good nominal performance, because the decisive point is how that performance changes once installed on the drone structure.

In UAV projects, ElettroMagnetic Services Srl develops custom antennas by taking into account the airborne platform, the available spaces, environmental exposure, operational stresses and the need to maintain the link during movement and changes in attitude.

Custom antennas for UAVs must therefore be designed by considering link behaviour under the dynamic conditions of the platform, where attitude, orientation, payload, materials and installation point can modify real range, coverage and signal stability.

The advantage is having an antenna solution designed for the platform and the mission, not simply selected from a catalogue.

Custom antennas for UGVs

In unmanned ground vehicles, the antenna has to operate under conditions that are very different from those of an aerial drone.

A UGV may move in industrial, logistics, agricultural, military or security environments, often in the presence of metal structures, obstacles, vibrations, shocks, dust, mud, water or surfaces that can influence signal propagation.

In these scenarios, the antenna solution can affect the quality of remote control, data transmission, video link, telemetry and GNSS reception.

A tailor-made design makes it possible to adapt the antenna to the geometry of the vehicle, the available installation point and the expected environmental conditions, reducing the risk of unstable links or lower-than-expected performance during operational use.

Antennas for UGVs often have to operate close to metal structures, sensors, cabling, electronic equipment, batteries or control systems, with the risk that the platform may modify the radiation pattern, efficiency or available coverage.

Custom antennas for ROVs and marine applications

ROV platforms and marine applications introduce particularly severe constraints.

In these applications, the critical issue does not concern only the radio link, but also the antenna’s ability to maintain its performance after exposure to the marine environment. Immersion, pressure, salt mist, humidity, corrosion and mechanical stresses can compromise sealing, materials, connections and the RF behaviour of the solution.

For this reason, antenna design for ROVs and marine applications must consider mechanical protection, environmental sealing and RF performance together. The objective is to develop an antenna solution capable of withstanding the expected immersion conditions and operating correctly when RF communication becomes necessary again.

Antennas for ROVs and antennas for marine drones must therefore be designed by taking into account the real operational scenario: exposure to the marine environment, installation on unmanned marine platforms, buoys, naval vessels or support units, mechanical sealing constraints and the need to ensure consistent RF behaviour when the radio link has to be used.

ElettroMagnetic Services Srl designs custom antennas and antenna systems for unmanned marine platforms, buoys, naval vessels, support units and ROV applications in which the RF solution must be consistent with the real operating environment.

Antennas for unmanned platforms and Advanced Air Mobility

The unmanned world no longer concerns only small remotely piloted drones. It includes industrial UAVs, autonomous ground platforms, unmanned marine systems, cargo drones, eVTOLs and solutions related to Advanced Air Mobility.

Antennas for unmanned platforms and antennas for eVTOLs must be developed by considering increasingly compact and integrated architectures, in which communication, navigation, telemetry, data transmission, redundancy and coexistence between multiple antennas become critical aspects of the RF project.

In these applications, the antenna part must support reliable communications, navigation, telemetry and data transmission in increasingly compact and integrated architectures.

The issue is not adding an antenna to an already defined platform, but designing an RF solution that is consistent with the weight, size, installation, robustness and reliability constraints required by professional or mission-critical applications.

ElettroMagnetic Services Srl develops custom antennas and antenna systems for unmanned platforms with the objective of contributing to link continuity and RF consistency on the real platform.

Standard antennas or custom antennas for drones?

In many projects, the initial choice of a standard antenna may seem the simplest and fastest solution.

A datasheet describes performance measured under specific conditions, but it cannot predict the interaction with every platform, every installation position and every mechanical constraint. In professional drones, this difference can become decisive.

A standard antenna may be adequate in the preliminary phase, but not guarantee the required behaviour once installed on the real drone. The risk is not only lower performance: it is discovering too late that communication, telemetry, video link or GNSS reception are not consistent with the mission objectives.

A custom antenna, instead, is developed starting from the project requirements, considering from the beginning the platform, the RF equipment, the installation position and the expected operating conditions.

In this way, technical uncertainty is reduced and control over the RF behaviour of the antenna solution is increased.

From the operational requirement to the antenna solution

Every project starts from the analysis of the application scenario.

Before designing a new antenna, ElettroMagnetic Services Srl evaluates together with the Customer the link to be supported, the installation platform, the available position for the antenna, the planned RF equipment, coexistence with other antennas and the operating conditions to be addressed.

From this analysis, a tailor-made antenna solution is developed, verified through electromagnetic simulations, prototyping, measurements and characterisation in an anechoic chamber.

This process makes it possible to move from an operational requirement to a concrete technical solution, reducing the risk of non-optimal choices and improving consistency between antenna, platform and mission.

The advantage for the Customer

Involving ElettroMagnetic Services Srl in the design of custom antennas for professional drones means addressing the RF part related to the antenna while design choices are still open.

This makes it possible to avoid standard antennas that are not optimised for the real platform, reduce the risk of RF criticalities in the advanced stages of integration and develop an antenna solution that is consistent with the RF architecture, the platform and the expected operating conditions.

It also means being able to verify the behaviour of the antenna or antenna system through measurements and characterisation in an anechoic chamber before delivery.

In professional drones, the antenna is not a secondary component. It should be evaluated from the earliest stages of definition of the RF architecture and the platform, when position, dimensions, cabling, protections and coexistence with other RF systems can still be optimised.

Custom antennas for your professional drone

If you are developing a professional drone, a UAV, a UGV, an ROV, an unmanned platform, an eVTOL system or a solution related to Advanced Air Mobility, ElettroMagnetic Services Srl can support you in designing the custom antenna best suited to your operational scenario.

Tell us about your project: platform, links to be supported, RF equipment, available position for the antenna, installation constraints and operating conditions are the starting point for designing an antenna solution that is truly consistent with your unmanned application.

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