Related Experiment Video
Updated: Sep 2, 2025

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
Published on: December 27, 2012
Impact of Common Reflecting and Absorbing Building Materials on THz Multipath Channels
Jorge Gomez-Ponce1,2, Naveed A Abbasi1, Revanth Kondaveti1
1Ming Hsieh Department of Electrical and Computer Engineering University of Southern California Los Angeles CA USA.
Abstract:
THz band communication has the potential to meet the high data rate demands of many current and future applications. However, before these networks are realized, extensive channel measurements are needed in order to characterize the wireless channel at these frequencies, in order to inform system design and deployment. In the current paper, we present a set of double-directional channel measurements that are conducted in several relevant indoor and outdoor scenarios. Our aim is to see the effect of common building materials that might be particularly reflective or absorptive (such as energy-saving glass, window blinds, or metallic reflectors), and how their presence changes the channel characteristics. Among other effects we find that - depending on the considered dynamic range - presence/absence of these materials can increase the required equalizer length by an order of magnitude.
Related Concept Videos
Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview
The ATR process begins by directing a beam...
Radiation: Applications
The average...
Propagation of Waves
Consider a scenario where a wave propagates from a string of low linear mass density to a string of high linear mass density. In such a case, the reflected wave is out of phase with respect to the incident wave, however the...
Echo
Imagine the sound is reflected back to the ears. Assuming that the source is very close to the human, the difference between hearing the two sounds—the emitted sound and the reflected sound—may be more than the minimum time for perceiving distinct sounds. If this is the case,...
Absorption of Radiation
Interference: Path Lengths
Two special sources may be considered when they are in phase. This can be easily achieved by feeding the two sources from the same source. An example would be synchronizing the two speakers by feeding them with the same source, such as the sound waves produced by a tuning fork. This setup ensures that the two sources have the same frequency and are...

