Cellular Antennas (2G–5G Sub-6)
Multiband cellular antennas meeting strict operator requirements for global connected products
Technologies
NFC And RFID
High-quality antenna solutions NFC and RFID
Are you developing a product which is based on UHF RFID, HF RFID or NFC technologies or even combining these with other wireless systems in a small package? Then wait no longer as we can provide valuable insight and high-quality solution:
Designing reliable NFC and RFID performance inside real products
NFC and RFID systems rarely fail because of the chipset. In most cases, performance issues originate from how the antenna behaves inside the actual device.
Materials such as metal, plastics, batteries, and nearby electronics directly influence antenna performance. This often leads to reduced read range, unstable communication, and late-stage redesigns that impact both cost and timelines.
Radientum supports product teams by designing and optimizing NFC and RFID antennas as part of the full device system. Using simulation-driven engineering and measurement-based validation, we help teams achieve predictable wireless performance early in development.
Cost considerations
The cost of NFC and RFID antenna design depends on integration complexity, performance requirements, and the level of support needed. A system-level approach helps control overall development cost. When antenna behavior is understood early, fewer hardware iterations are required and late-stage redesign work can be avoided. This also reduces the risk of overdesign and helps teams reach validation targets more efficiently. Instead of treating antenna design as a separate task, integrating it into the development process typically leads to better cost control across the full project lifecycle.
Availability and engagement
Support is typically aligned with the different phases of product development. Early involvement allows the most flexibility in design decisions and has the highest impact on risk reduction. Engagement can range from focused design reviews and optimization tasks to broader support covering simulation, design, and validation. The scope is defined based on project needs, timelines, and performance targets. Planning antenna design early in the project helps ensure availability and enables a smoother development process.
Project details and collaboration
Each project begins with understanding the device context, constraints, and performance goals. Antenna design is always approached as part of the full system, not as an isolated component. Inputs such as mechanical design, materials, PCB layout, and use cases are used to guide simulation and design decisions. From there, the work progresses through structured design iterations and validation steps. Collaboration is kept transparent and engineering-focused, ensuring that decisions are based on measurable performance and clear technical reasoning.
NFC
We can design you custom NFC coils and tags that you can integrate directly to your device on a PCB or attached to your mechanics. Our simulations will consider the effects of the environment and we can fine tune the coil resonance based on our antenna measurements.
Typical NFC challenges
NFC performance depends heavily on coil design, tuning, and interaction with the surrounding structure.
🔹 Detuning caused by nearby materials
🔹 Reduced read/write reliability
🔹 Limited communication range
🔹 Inconsistent performance across use cases
Our approach
🔹 Custom coil design optimized for your device constraints
🔹 Full-device electromagnetic simulations including mechanics and materials
🔹 Resonance tuning based on both simulation and measurement
🔹 Validation against real operating scenarios
This ensures that NFC functionality remains stable across different environments and usage conditions.
UHF RFID
UHF tags are very sensitive to materials around it which makes integrating them part of your device a challenging task. Instead of tag inlay, we can design a custom antenna that is intergrated into your device on your PCB and minimizes BOM cost. At the same time due to our antenna simulations you get performance forecast of read range which can later be measured in our anechoic chamber.
UHF RFID: common challenges
UHF RFID performance is highly dependent on device integration. The most common issues are predictable when viewed at system level.
🔹 Performance degradation near materials such as metal, batteries, and plastics
🔹 Unpredictable read range when moving from lab to real use
🔹 Poor performance of generic tag inlays in integrated devices
🔹 Late-stage redesigns due to unexpected antenna behavior
🔹 Mismatch between measured and real-world performance
How to address and mitigate UHF RFID challenges
These challenges are addressed through a simulation-driven and system-level design approach.
The antenna is analyzed within the full device context, including materials, mechanics, and nearby electronics. This allows detuning effects and efficiency losses to be identified early and compensated through design adjustments.
Read range and performance are predicted using realistic simulation scenarios and then validated through measurements. This reduces uncertainty before physical prototyping.
Instead of relying on generic tag solutions, antenna designs are tailored to the specific device constraints. This improves integration efficiency and overall system performance.
By introducing simulation early in the process, potential issues can be identified before hardware iterations. This minimizes redesign cycles and supports a more predictable development path.
Finally, combining simulation with measurement ensures that performance aligns with real-world conditions, not only controlled test environments.
Now, LEt’s look at your business?
You have a vision of a wireless product. So, you know how the product should look like, what materials will be used, what’s the desired connectivity experience, and more. The first thing is to find out how these requirements affect antenna design and is the vision realistic. Feasibility Study enables you to do just that!
Reference project
Extronics – Long distance Communication in process industry
When Extronics, a leader in hazardous area industrial wireless solutions and IoT devices, faced the challenge of developing a wearable LoRaWAN connected worker safety tag for large industrial sites, they knew they needed a reliable partner.
Relevant technologies
RFID and NFC technologies are commonly integrated alongside other wireless standards to enable secure communication, device provisioning, tracking, authentication, and seamless connectivity. In modern electronic devices, NFC and RFID rarely operate alone – they typically coexist with technologies such as Bluetooth Low Energy (BLE), Wi-Fi, UWB, GNSS, LPWAN, and cellular radios. This creates new RF design challenges related to antenna placement, interference mitigation, isolation, and overall wireless coexistence performance. Understanding how these technologies interact is essential when designing reliable connected devices and optimizing real-world wireless behavior.
Bluetooth Antenna Design
Efficient Bluetooth antennas and PCB traces improving BLE range and battery life reliably.
Wi‑Fi Antennas
High-efficiency Wi‑Fi antennas optimized for throughput, range, and challenging layouts
GPS / GNSS Antennas
Integrated GNSS antennas delivering accurate positioning performance in challenging environments
More about relevant services
Our services support the full wireless integration process around NFC and RFID technologies — from antenna and RF design to coexistence optimization, device validation, and enclosure-level performance tuning. We help ensure that NFC and RFID systems operate reliably alongside other radios such as BLE, Wi-Fi, LPWAN, GNSS, and cellular connectivity. With increasing device complexity and tighter mechanical constraints, successful wireless products require careful attention to antenna behavior, interference management, EMC performance, and real-world usability across multiple wireless technologies.
Antenna Design
Custom antenna design delivering reliable wireless performance from concept to certification
Standard Antenna Integration
Integrate off-the-shelf chip antennas rapidly with data-driven placement, matching, and materials choices.
Antenna Measurements
Verify, tune, and benchmark antenna performance with precise OTA and conducted measurements
EMC & EMI Testing Services
R&D, pre-cert, and official EMC/EMI testing to de-risk launches and schedules through actionable debugging.