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Infrared thermography for electromagnetic field pattern recognition

机译：红外热成像技术用于电磁场模式识别

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The visualization of electromagnetic field intensity can be easily achieved by infrared thermography using an absorption screen of carbon loaded polymers. The electromagnetic waves falling on the absorption screen increase its temperature which is monitored by an infrared camera. The measured temperature profile can further be correlated to the electric field intensity. Measurement of electromagnetic field distribution is typically done by a small scanning antenna and is a time consuming process. Furthermore the scanning antenna will itself disturb the measurement process which is not the case with an absorption screen, even if the screen is kept very near to the electromagnetic wave source. Therefore fields very near to the source can also be visualized and measured. Also the length of the scanning antenna depends on wavelength of electromagnetic field to be measured, therefore it is improper to apply it to measure various fields. In order to show the utility of the above technique, an example of a patch antenna operating at a frequency of 2.45 GHz is given. Initial experiments show good agreement between simulated and measured results.
机译：电磁场强度的可视化可以通过使用载有碳的聚合物的吸收屏的红外热成像法轻松实现。落在吸收屏上的电磁波会升高其温度，该温度由红外热像仪监控。所测量的温度曲线可以进一步与电场强度相关。电磁场分布的测量通常由小型扫描天线完成，这是一个耗时的过程。此外，即使将天线保持在非常靠近电磁波源的位置，扫描天线本身也会干扰测量过程，而对于吸收屏来说，情况并非如此。因此，也可以可视化和测量非常靠近源的场。另外，扫描天线的长度取决于要测量的电磁场的波长，因此不适用于测量各种场。为了显示上述技术的实用性，给出了以2.45 GHz频率工作的贴片天线的示例。初步实验表明，模拟结果与测量结果之间具有良好的一致性。

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