Living in the wireless era, all aspects of our daily life is affected by wireless technology; from autonomous driving to having access to our high-school friends via social networking on our cellphones. One of the key hardware elements for a wireless device is its antenna; making the device capable of sharing information with other wired or wireless devices. The antennas in any wireless systems are capable of receiving and transmitting information in a form of electromagnetic wave. After begin designed and made, each antenna needs to be tested for its behavioral characteristics such as radiation pattern and gain. To measure the radiation characteristics of the antennas, depending on the application and the measurement uncertainty needed for that application, different types of anechoic chambers are used. One of the key elements for the appropriate functioning of an anechoic chamber is the microwave absorbers used to line the chamber. In the present talk, microwave absorbers used to line anechoic chambers are explained in detail and the process of their design and testing, as done at Emerson&Cuming Anechoic Chambers NV, is discussed.
Amin Enayati, Senior member IEEE and Senior Member AMTA, received a B.Sc. degree from the University of Tehran, Tehran, Iran, an M.Sc. degree from the K.N.T. University of Technology, Tehran, in 2001 and 2004, respectively, both in electrical engineering. He received a Ph.D. degree from KU Leuven University, Leuven, Belgium, in 2012, for his work on antenna-in-package solutions for microwave and millimeter-wave applications. Between January 2008 and June 2012, he was with the RFCDM Group at IMEC, Leuven, as a Ph.D. researcher working on microwave-related projects such as multi-nation European projects, eCubes and eBrains. As a Researcher, he was with the CSI Group at IMEC working on antenna-in-package solutions for 60-GHz, WLANs and body-area network systems till 2013. In 2013, he joined Emerson & Cuming Anechoic Chambers (ECAC), Westerlo, Belgium, as an R&D Engineer and then became the R&D manager in 2017. At ECAC, his focus is on research and development of electromagnetic absorbers and anechoic chambers with main interest in RF design, characterization, and measurement