3D antenna characterization in MHz Range at CETECOM
Wireless application are on the rise in many areas. This holds also for applications in the MHz range, such as e.g. 164 MHz used at ships and 315 MHz used on ground based vehicles. For tests at those frequencies classical OTA chambers are in most cases too small and cannot be used at all, because they are equipped with gear useful for frequency above 600 MHz only.
MHz wireless technology is often used specifically for long-range communications. Therefore, it is important to know the antenna gain in different directions.
Typical applications are about the frequency range from 80 MHz to 400 MHz and shall be tested e.g. at a measurement distance of e.g. 6 m, typically. For this purpose, we retrofit our EMC chamber at our Düsseldorf site to an AFAR (Antenna fully anechoic room). In addition, we apply a special measurement technique to be able to characterize also circular polarized antennas. We use phase-sensitive measurement data and an appropriate post processing. Doing so we can determine not only pattern, efficiency and gain, but also 3D axial-ratio data.
With this development-supporting test service, we can help manufacturers of products early in the development phase and contribute to find the ideal performance for their wireless system.
If you have any further questions, please do not hesitate to contact us: https://cetecomadvanced.com/en/contact/
cetecom advanced is a global testing and certification service provider and part of the RWTÜV Group.
We are a state-recognized testing laboratories that is accredited worldwide for a wide range of testing services. With our testing services in accordance with international regulations, we help to bring electrical/electronic products safely onto the international market. Furthermore, we carry out product approvals in over 180 countries and renowned brands from all industries have been relying on our expertise since 1993.
This technical article was written according to strict editorial standards. All information contained in the article is the result of careful research on the subject. All specialist articles have been checked by the relevant specialist departments in our laboratories, which are responsible for testing and approving a wide range of radio products on a daily basis.
