Precitronic > Customization > RF Testing

RF (Radio Frequencty) Testing

Precitronic provides controlled, electromagnetic interference-free environments to validate your DUT’s power output, frequency range, and coexistence capabilities in today’s congested wireless landscapes.

Understanding RF Testing and its Importance

Radio Frequency (RF) testing is a critical process used to evaluate a device’s signal strength, quality, and spectral emissions. To ensure accurate results, the Device Under Test (DUT) is placed within a shielded environment—such as an anechoic chamber or a Faraday cage—to eliminate external electromagnetic interference. Using advanced tools like spectrum analyzers and Vector Network Analyzers (VNAs), we validate key parameters such as power output, frequency range, and impedance matching to ensure your product meets global standards.

Comprehensive Diagnostics from MHz to GHz

Whether your application is standard RF or ultra-high-speed, Precitronic’s test fixtures and probes are engineered to handle a broad frequency spectrum ranging from MHz to GHz. Our specialized RF Test Fixture kits provide a stable, isolated environment that allows engineers to detect and resolve critical performance issues early. By using our high-precision shielding, you can identify typical manufacturing and design errors such as:

Signal reflections and distortion
Impedance mismatches in high-speed traces
Excessive signal attenuation
Layout-related interference issues

What are the most common RF Testing Methods?

Radiated Emissions Testing

Radiated emissions testing quantifies the electromagnetic energy that a device unintentionally releases into the atmosphere. Devices are situated within a shielded anechoic chamber, where specialized antennas and EMI test receivers capture radiated signals across a wide frequency spectrum. This testing guarantees adherence to regulations and mitigates interference with adjacent systems, including medical devices or communication networks.

Conducted Emissions Testing

Conducted emissions testing examines RF energy transmitted via cables, such as power lines or data connectors. By utilizing Line Impedance Stabilization Networks (LISNs), engineers directly measure emissions on these lines to confirm they remain within permissible limits. Devices such as power adapters, industrial machinery, and automotive components frequently necessitate this form of testing to prevent grid interference.

Immunity Testing

Immunity testing evaluates the performance of a device when subjected to external RF signals. For instance, radiated immunity tests replicate airborne interference, while conducted immunity tests introduce RF signals into a device’s cables. This testing is vital for mission-critical devices like medical monitors or avionics systems, which must sustain functionality in noisy RF environments.

Over-the-Air (OTA) Testing

OTA testing is crucial for wireless devices equipped with integrated antennas, including smartphones, wearables, and IoT sensors. It assesses parameters such as Effective Isotropic Radiated Power (EIRP) and Total Radiated Power (TRP) within anechoic chambers, ensuring the device complies with performance and regulatory standards.

Coexistence Testing

As wireless devices operate in congested RF environments, coexistence testing verifies their reliable operation alongside other technologies, such as Wi-Fi, Bluetooth, and LTE. This testing simulates interference scenarios to confirm a device’s capability to maintain functionality and throughput.