Industrial Innovations

Industrial Innovations

Simulation and Investigation of Electromagnetic Wave Propagation of TTW Radars in Brick and Concrete Walls for Industrial Imaging Applications

Document Type : Original Article

Author
Department of Electrical Engineering, Faculty of Engineering, Arak University, Arak, 38156-8-8349, Iran.
Abstract
This paper presents ultra-wideband continuous wave radars in the frequency sweep of 0.5 to 8 GHz, which search for moving and stationary objects behind walls. As electromagnetic waves propagate from one homogeneous medium to another create a change in the wave impedance at the boundary of the medium. Impedance mismatch generally leads to reflection, absorption, and transmission of electromagnetic waves. Therefore, it is necessary to investigate the reflection coefficient and transmission coefficient of different materials to understand their behavior towards electromagnetic waves. The main advantages of ultra-wideband for short-range radar tracking and imaging include very good resolution, high power efficiency, low interference, and the ability to detect moving or stationary targets in various industrial environments. Through-The-Wall (TTW) radars have emerged in recent years as a new method of industrial and non-destructive imaging. The operation of these radars is based on the emission and reception of electromagnetic waves through physical obstacles such as brick and concrete walls.
Keywords

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Volume 4, Issue 1 - Serial Number 13
In Press
Winter 2026
Pages 21-33

  • Receive Date 06 December 2025
  • Revise Date 01 January 2026
  • Accept Date 07 January 2026