Broadband wide angular response microwave absorbing dielectric resonator array structure

Omar H. AL-Zoubi1, 2* 

1Renewable Energy Engineering Department, Alalbayt University, Mafrag, Jordan

2Univeristy of Arkansas, Fayetteville, 72701, AR, USA

Adv. Mater. Lett., 2017, 8 (9), pp 922-926

DOI: 10.5185/amlett.2017.1594

Publication Date (Web): Jun 04, 2017



In this article, we report a new method for enhancing microwave absorbing material properties by using dielectric resonator arrays structure. The proposed structure is an array of circular cylinder dielectric resonators (CDR) that are composed of microwave absorbing (MA) material. The performance of the proposed structure is studied using numerical electromagnetic methods. The results show that an MA martial performance can be significantly enhanced if constructed in the form of CDR arrays compared with similar thickness flat sheet of counterpart MA material. The band width, thickness, angular response, and absorption strength are significantly enhanced by implementing the introduced method. A well deigned CDR array with height of 4 mm can achieve ~ 13 GH 10-dB bandwidth, with ~45-degree angular response. The introduced MA structures exhibits the wide angular response, up to 45 degrees, for both TE and TM polarizations.


Microwave absorbing materials, dielectric resonator arrays, light trapping

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