Kerala University researchers develop 5G microwave absorber

Subodh G, assistant professor in the Department of Physics at the University of Kerala, and research scholar Vidya Lalan developed fifth-generation (5G) microwave absorbers.Development of 5G microwave absorbers could act as an effective shield against electromagnetic radiations.Threat of electromagnetic pollution and radiation is inevitable because of ever-increasing quest for smarter and advanced electronic devices worldwide.Electromagnetic interference (EMI) affects the high-end devices as well as they are detrimental to the health of living organisms.

Significance of the development

• The problems generated by EMI requires immediate attention in this era of 5G technology and Internet of Things (IoT).
• This is because it has become difficult to undertake routine chores without using electronic devices and internet, which work around electromagnetic waves.
• Thus, the development of 5H microwave absorbers is significant for high frequently applications.

What is the name of shielding material?

• The new shielding material is a ‘mayenite electride’. It is chemically stable. The material has shown exceptional microwave absorption ability in high frequency region, particularly in the 5G band.
• The presence of anionic electrons provides this compound a high conductivity, which is responsible for its high electromagnetic wave attenuation.

Electromagnetic interference (EMI)

• EMI is a disturbance generated by an external source, affecting an electrical circuit by electromagnetic induction, conduction or electrostatic coupling.
• This disturbance may disturb the performance of circuit or even stop it from working.
• EMI could be cause by man-made as well as natural sources generating changing electrical currents and voltages.