RF Test Lab

IoT uses extensive and diverse wireless communication technologies, such as 4G, Wi-Fi, Bluetooth®, to make our lives more convenient. However, the use of compound wireless communication technologies has increased the difficulties of product design, and brought forth many issues during usage, such as security.


Why do we need RF test validation?
With the diverse applications of IoT, wireless signal interference issues are getting worse. Besides the wireless transmission performance of the product’s antenna, other issues that vendors need to resolve during the product development stage include: noise interference from the device’s various electronic components, whether different user behavior will cause transmission performance to drop, and whether mutual interference will occur when using wireless radio frequencies of similar frequency bands.       

What products need RF validation test?

  • Wireless product (antenna, board, complete machine)
  • IoT devices
  • IoT platform and system, such as cloud logistics management system, launched by IPC companies who are highly interested in the IoT markets
RF Test Lab

Allion combines various types of wireless hybrid technologies and we can provide you in-depth RF debugging analysis based on your products’ attributes, usage scenarios, IoT ecosystem applications, and shorten your time to launch the product to the market and consumers.


RF validation scope and test items

Performance Test

Antenna” is an important component for transmitting and receiving electromagnetic wave. The matching status of the antenna and various modules will also affect transmission performance. Through measurement of antenna and module and OTA testing, we are able to determine whether Transmit Power and Receive Sensitivity comply with the design specifications and regulations.

Noise Analysis

Generally, electronic components generate electromagnetic signals and cause mutual interference, including PCB Layout, Connector, CPU, GPU, Power, etc. By analyzing the noises sent out from the devices, Allion’s RF professional team is able to find out the reason for the interference of wireless performance, thereby assisting consumers in improving the noise issue.


Different user scenarios may also affect wireless transmission speed, or even cause signal interruption. For example, when saving data using a USB storage device with Wi-Fi connection, it may cause Wi-Fi transmission speed to drop or even disconnection. Allion provides a customized environment for De-sense testing and enables early detection of potential issues under different user scenarios.


Different wireless signals exist in a single user environment in everyday life, and different RF signals, often due to close frequencies (co-channel, adjacent channel interference), may cause the product’s wireless performance to drop. For example, there may be mutual interference between microwave and Wi-Fi if both use 2.4GHz. Allion makes use of massive device database and various types of testing equipment, to simulate consumers’ actual practical situation, and perform customized interference source testing for your products.


RF professional testing report

Allion is able to provide corresponding test reports based on customer requirements, including antenna test report, OTA test report (for example, Wi-Fi, Bluetooth®), etc. Every report has detailed test objectives, testing environment, testing steps, etc., with results presented in text and illustration to enable consumers to know about their product’s test results at a glance.

3D Pattern
Waterfall Chart


RF testing environment

RF Anechoic Chamber is the most important part in RF measurement environment. It is able to absorb any electromagnetic waves that interfere with the measurement result, eliminate reflection caused by electromagnetic waves and isolated external signals. Allion has invested a huge amount in building RF test environment of various sizes, including 843 Chamber, 333 Shielding Room, and Shielding Box, to meet  different testing requirements.

RF Anechoic Chamber


Testing instruments

In addition to RF Chamber, Allion has also invested millions of dollars in testing instruments including the Base Station Simulator, Network Analyzer, Spectrum Analyzer, etc., for RF signal test measurements and analysis.

Network Analyzer (網路分析儀)
Testing Instruments Spec Overview
Network Analyzer 2 Ports, 1MHz to 8GHz Measuring the S parameters of DUTs
Base Station Simulator
Testing Instruments Spec Overview
Base Station Simulator 6 Ports,

Support 2/3/4G, Wi-Fi and BT

Simulating base station signals that enable testers to measure
Spectrum Analyzer
Testing Instruments Spec Overview
Spectrum Analyzer 1 Port, 20Hz to 26.5GHz Measuring signal strengths and adjusting performances