Research Article
Ultra Wide X-Band Microwave Imaging of Concealed Weapons and Explosives Using 3D-SAR Technique
Table 1
Results on transmission tests on clothes.
| Garments | Max. frequency for which attenuation <1 dB | Max. attenuation in the whole 1–40 GHz band |
| #1 leather jacket (100% leather) | 20 GHz | 1 dB | #2 cotton shirt (100% cotton) | 16 GHz | 2 dB | #3 thick sweater (50% wool, 50% acrylic) | 20 GHz | 1 dB | #4 lightweight wool jacket (100% wool) | 20 GHz | 1 dB | #5 shirt (80% cotton and 20% polyester) | 20 GHz | 1 dB | #6 parka (waterproof canvas filled) | 17 GHz | 2 dB | #7 wool jacket (100% wool) | 16.5 GHz | 1 dB | #8 waterproof jacket (inner side: 100% cotton; outer side: 100% polyester) | 16 GHz | 2 dB |
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