Enhancing the Performance of the Microwave Absorbing Materials by Using Dielectric Resonator Arrays
We present a technique for enhancing the performance of microwave absorbing materials in terms of weight, thickness, and bandwidth. The introduced technique is based on fabricating the microwave absorbing (MA) material in a structure comprised of an array of circular cylinder dielectric resonators (...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Modelling and Simulation in Engineering |
| Online Access: | http://dx.doi.org/10.1155/2017/3658247 |
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| author | Omar H. Al-Zoubi Hameed Naseem |
| author_facet | Omar H. Al-Zoubi Hameed Naseem |
| author_sort | Omar H. Al-Zoubi |
| collection | DOAJ |
| description | We present a technique for enhancing the performance of microwave absorbing materials in terms of weight, thickness, and bandwidth. The introduced technique is based on fabricating the microwave absorbing (MA) material in a structure comprised of an array of circular cylinder dielectric resonators (CDR) backed by a perfect electric conductor (PEC) ground plane. Numerical electromagnetic methods are employed to study the properties of the proposed MA array structures, where 3D full wave simulation using finite-element method is implemented. The obtained results show that the performance of the MA-CDR arrays significantly outperforms that of a flat layer composed of the same material and having equivalent thickness. A flat layer of MA material with thickness of 5 mm backed by perfect electric conductor (PEC) shows as low as -50 dB reflection loss (RL) peak and ~3 GHz 10-dB bandwidth, whereas an MA-CDR array, composed of the same MA material, of height of 4 mm can achieve as low as ~−50 dB RL peak and ~12 GHz 10-dB RL bandwidth. |
| format | Article |
| id | doaj-art-1e7e2137d5d7447c9451a606fa7195db |
| institution | Kabale University |
| issn | 1687-5591 1687-5605 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Modelling and Simulation in Engineering |
| spelling | doaj-art-1e7e2137d5d7447c9451a606fa7195db2025-02-03T05:45:41ZengWileyModelling and Simulation in Engineering1687-55911687-56052017-01-01201710.1155/2017/36582473658247Enhancing the Performance of the Microwave Absorbing Materials by Using Dielectric Resonator ArraysOmar H. Al-Zoubi0Hameed Naseem1Department of Renewable Energy Engineering, AL-Albayt University, Mafraq, JordanUniversity of Arkansas, Fayetteville, AR 72701, USAWe present a technique for enhancing the performance of microwave absorbing materials in terms of weight, thickness, and bandwidth. The introduced technique is based on fabricating the microwave absorbing (MA) material in a structure comprised of an array of circular cylinder dielectric resonators (CDR) backed by a perfect electric conductor (PEC) ground plane. Numerical electromagnetic methods are employed to study the properties of the proposed MA array structures, where 3D full wave simulation using finite-element method is implemented. The obtained results show that the performance of the MA-CDR arrays significantly outperforms that of a flat layer composed of the same material and having equivalent thickness. A flat layer of MA material with thickness of 5 mm backed by perfect electric conductor (PEC) shows as low as -50 dB reflection loss (RL) peak and ~3 GHz 10-dB bandwidth, whereas an MA-CDR array, composed of the same MA material, of height of 4 mm can achieve as low as ~−50 dB RL peak and ~12 GHz 10-dB RL bandwidth.http://dx.doi.org/10.1155/2017/3658247 |
| spellingShingle | Omar H. Al-Zoubi Hameed Naseem Enhancing the Performance of the Microwave Absorbing Materials by Using Dielectric Resonator Arrays Modelling and Simulation in Engineering |
| title | Enhancing the Performance of the Microwave Absorbing Materials by Using Dielectric Resonator Arrays |
| title_full | Enhancing the Performance of the Microwave Absorbing Materials by Using Dielectric Resonator Arrays |
| title_fullStr | Enhancing the Performance of the Microwave Absorbing Materials by Using Dielectric Resonator Arrays |
| title_full_unstemmed | Enhancing the Performance of the Microwave Absorbing Materials by Using Dielectric Resonator Arrays |
| title_short | Enhancing the Performance of the Microwave Absorbing Materials by Using Dielectric Resonator Arrays |
| title_sort | enhancing the performance of the microwave absorbing materials by using dielectric resonator arrays |
| url | http://dx.doi.org/10.1155/2017/3658247 |
| work_keys_str_mv | AT omarhalzoubi enhancingtheperformanceofthemicrowaveabsorbingmaterialsbyusingdielectricresonatorarrays AT hameednaseem enhancingtheperformanceofthemicrowaveabsorbingmaterialsbyusingdielectricresonatorarrays |