Visual Observation and Quantitative Measurement of the Microwave Absorbing Effect at X band

TL;DR

This paper presents a simple, cost-effective system for visualizing and quantitatively measuring microwave absorption at X-band frequencies, offering an alternative to traditional large-scale testing chambers.

Contribution

It introduces a novel, compact setup for electromagnetic wave visualization and measurement of reflectivity in microwave absorbing materials, reducing reliance on large, expensive testing facilities.

Findings

Effective visualization of 2D electromagnetic wave propagation.

Quantitative measurement of reflectivity coefficients.

Potential for practical application in material characterization.

Abstract

We have setup a simple field mapping measure system to describe graphically the 2D quasi-free-space electromagnetic wave in a parallel plate waveguide at the X-band frequencies. Our apparatus illustrates a potential application in characterizing the microwave absorbing materials. The visual demonstration about the physical process and quantitative measurement of reflectivity coefficients can be achieved. This simple apparatus has have an advantage over with conventional testing methods which usually involve huge, expensive anechoic chambers and demand samples of large size.