Journal
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
Volume 19, Issue 5, Pages 821-825Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2020.2981405
Keywords
Absorption; Metamaterials; Programmable logic arrays; Broadband communication; Broadband antennas; Bandwidth; Metamaterials; microwave absorption; water-based; ultrabroadband
Funding
- National Natural Science Foundation of China [61205095]
- Shanghai Young College Teacher Develop funding schemes [slg11006]
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In this letter, a swastika-shaped ultrabroadband metamaterials absorber is proposed. The designed absorber can be fabricated with the polylactic acid by 3-D printing, and packaged after filling with water. The absorber can achieve greater than 90% absorption in the frequency band of 9.3-49.0 GHz, with a relative bandwidth of 136%, which has been well demonstrated in the microwave experiment. Moreover, it also performs well at wide angles of incidence and the absorption efficiency has almost no obvious changes over the water temperature range of 0 degrees C-100 degrees C. The absorber proposed in this letter benefits from ultrawideband absorption, low cost and environment-friendly materials, it can be applied in the fields of electromagnetic (EM) stealth and EM energy harvesting.
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