Microwave Absorbing Composites Based on Low-Frequency Electromagnetic Wave Absorbing Array With Multiple-Component
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    Abstract:

    In this paper, an low-frequency microwave absorbing (LFMA) array with patch & cross multiple-component is designed by electromagnetic simulation, and the microwave absorbing composites (MAC) based on LFMA array is prepared by moulded pressing. The influence of component structure on changing of the intrinsic microwave absorbing properties is studied. The microwave absorbing performance measurement reveals that the intrinsic absorbing bandwidth can be broaden by utilizing multi-component array. Dual absorbing peak is found on multi-component array with patch & loop cell, the frequency of which is located at 3.1 GHz and 4.5 GHz, respectively. The low-frequency absorbing performance of MAC can be obviously improved by intoduction of LFMA array. The reflection coefficient of MAC in 5 mm thickness is lower than -4.7 dB in the frequency range of 2 to 6 GHz as well as lower than -7 dB in the frequency range of 6 to 16 GHz, which is remarkably improved compared with the traditional impedance gradation MAC.

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History
  • Received:April 20,2015
  • Revised:
  • Adopted:
  • Online: March 09,2017
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