A standard antenna is designed to meet general requirements, not the specific needs of an individual application.
When a project requires defined RF performance, a particular operating frequency or bandwidth, precise mechanical integration or resistance to demanding environmental conditions, an off-the-shelf antenna may prove unsuitable even when its datasheet appears to meet some of the required specifications.
Antenna behaviour does not depend solely on the values declared in the technical documentation. Its performance can change once it is installed inside a device or on the actual platform, due to the presence of metal structures, dielectric materials, radomes, cables, electronics and other surrounding components.
ElettroMagnetic Services S.r.l. designs and manufactures professional custom antennas developed around the specific requirements of each application. Rather than simply modifying an existing product, we build the antenna around the Customer’s actual RF, mechanical, integration and environmental needs.
Why a Standard Antenna May Not Be Enough
Why a Standard Antenna May Not Be Enough
An off-the-shelf antenna is generally developed to cover the widest possible range of applications. This approach may be suitable when the requirements are common and the installation configuration does not present any particular technical challenges.
It becomes a limitation when a project requires a non-standard frequency or bandwidth, a defined gain, a specific radiation pattern, a particular polarization, reduced dimensions or reliable performance under demanding operating conditions.
Even an electrically compatible antenna may cause difficulties if it cannot be correctly integrated into the device, if its radiation pattern is altered by the platform or if the available performance margin is insufficient to guarantee reliable system operation.
Professional custom antenna design makes it possible to address these factors from the earliest stages of development, reducing the risk of discovering during final testing that the selected component is not actually suitable for the application.
Custom Antennas Designed for the Real Application
Custom Antennas Designed for the Real Application
The development of a custom antenna begins by identifying the characteristics that are genuinely necessary for the system to operate correctly.
Operating frequency, bandwidth, impedance matching, gain, radiation pattern, polarization and maximum applicable power are defined according to the use case, installation configuration and Customer’s performance objectives.
This approach enables us to develop an application-specific antenna whose performance is consistent with the actual operating conditions, rather than selecting an existing product with specifications that only appear to be compatible.
The difference is particularly important in professional applications, where insufficient coverage, an unsuitable radiation pattern or reduced efficiency may compromise link reliability and the overall performance of the system.
Mechanical Integration and Space Constraints
Mechanical Integration and Space Constraints
The RF design of an antenna must be developed together with its mechanical integration.
Available space, shape, weight, materials, mounting position, mechanical interfaces, orientation and nearby components can influence both the feasibility of the product and its electromagnetic behaviour.
When a standard antenna cannot be installed correctly, a custom solution allows the geometry, supports, radome and mounting system to be developed around the Customer’s equipment or platform.
The objective is to obtain an antenna that can be properly integrated into the final product, avoiding compromises imposed by a component originally designed for different installation conditions.
Materials, Radomes and Environmental Conditions
Materials, Radomes and Environmental Conditions
A professional antenna must not only achieve the required RF performance. It must also maintain that performance under the operating conditions for which it was developed.
Temperature variations, vibrations, shocks, humidity, water, dust, salt mist, ultraviolet radiation and chemical agents may affect the selection of materials, surface treatments, radomes, sealing systems and mechanical interfaces.
Custom antenna engineering allows these requirements to be considered from the beginning of the project, resulting in a solution that is consistent with the actual installation environment and with any standards applicable to the system.
Electromagnetic performance, mechanical robustness and environmental protection are therefore addressed as interconnected aspects of the same product.
Supply Continuity and Industrialization
Supply Continuity and Industrialization
A custom-designed antenna also provides an advantage that is often underestimated: greater control over supply continuity.
An off-the-shelf product may be modified or discontinued by its manufacturer for reasons unrelated to the Customer’s project. This may require the identification of an alternative component and the repetition of integration and validation activities during a critical stage of production.
A custom antenna is developed specifically for the application and can be industrialized according to the expected quantities, from the manufacture of the first prototypes to small production batches or ongoing series production.
The definition of materials, manufacturing processes, tolerances and inspection procedures helps ensure repeatability between units and consistency with the validated prototype.
From Application Requirements to a Custom Antenna
From Application Requirements to a Custom Antenna
Every project begins with a shared analysis of the RF specifications, mechanical constraints, operating conditions and performance objectives.
Based on this information, we define a technical proposal describing the scope of the project, the guaranteed performance, the planned activities, the development schedule and the associated costs.
The development process combines electromagnetic simulation with mechanical CAD design. A first prototype is then manufactured, tested and characterized in our in-house anechoic chamber to verify compliance with the agreed specifications.
When the installation environment may significantly affect antenna performance, testing is not limited to the isolated antenna. Whenever possible, the evaluation also considers the actual installation configuration, radome, surrounding structures or a representative model of the final platform.
Industrialization and production begin only after the design has been experimentally validated.
Our Technical Scope
Our Technical Scope
ElettroMagnetic Services S.r.l. specializes in the design, prototyping, characterization and manufacturing of professional custom antennas.
Our technical scope includes the antenna component, radome, interfaces and the elements required for its mechanical and electromagnetic integration into the Customer’s platform.
We do not supply active RF electronics, firmware or communication equipment. We develop the antenna so that it can operate correctly with these systems and within the intended installation configuration.
Types of Professional Custom Antennas
Types of Professional Custom Antennas
Custom antenna development may include:
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single-band, multiband and broadband antennas;
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directional, omnidirectional and sector antennas;
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integrated, conformal and low-profile antennas;
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antennas with linear, circular or dual polarization;
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high-power antennas;
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rugged antennas for demanding operating environments;
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application-specific RF antenna assemblies.
Every antenna is developed according to the application, required performance, available installation constraints and expected production quantities, without necessarily starting from a predefined shape or antenna architecture.
When several antennas are installed on the same platform, isolation, mutual coupling and RF coexistence must also be considered. These aspects are addressed in greater detail in our dedicated page on professional multi-antenna system design.
Let’s Discuss Your Custom Antenna Project
Let’s Discuss Your Custom Antenna Project
When the antenna you need is not available on the market, or when a standard product cannot provide the performance, integration or environmental resistance required by your application, we can evaluate the project with you.
Starting from the actual system requirements, we can identify the most appropriate development path for a professional custom antenna, from the initial technical assessment to a validated prototype and, when required, industrialization and production.
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