Microwave absorption in layered media: Application to landmine detection

The absorption of microwave radiation and subsequent thermal conduction by simple composite media, consisting of parallel layers with disparate therma l properties, is analysed. The solutions for a one-dimensional conduction m odel are used to investigate the time evolution and distribution of thermal energy within moisture-laden soils containing non-absorbing objects. The a pplication of these results to the detection of landmines is discussed and evaluated.