Vol. 78
Latest Volume
All Volumes
PIERL 108 [2023] PIERL 107 [2022] PIERL 106 [2022] PIERL 105 [2022] PIERL 104 [2022] PIERL 103 [2022] PIERL 102 [2022] PIERL 101 [2021] PIERL 100 [2021] PIERL 99 [2021] PIERL 98 [2021] PIERL 97 [2021] PIERL 96 [2021] PIERL 95 [2021] PIERL 94 [2020] PIERL 93 [2020] PIERL 92 [2020] PIERL 91 [2020] PIERL 90 [2020] PIERL 89 [2020] PIERL 88 [2020] PIERL 87 [2019] PIERL 86 [2019] PIERL 85 [2019] PIERL 84 [2019] PIERL 83 [2019] PIERL 82 [2019] PIERL 81 [2019] PIERL 80 [2018] PIERL 79 [2018] PIERL 78 [2018] PIERL 77 [2018] PIERL 76 [2018] PIERL 75 [2018] PIERL 74 [2018] PIERL 73 [2018] PIERL 72 [2018] PIERL 71 [2017] PIERL 70 [2017] PIERL 69 [2017] PIERL 68 [2017] PIERL 67 [2017] PIERL 66 [2017] PIERL 65 [2017] PIERL 64 [2016] PIERL 63 [2016] PIERL 62 [2016] PIERL 61 [2016] PIERL 60 [2016] PIERL 59 [2016] PIERL 58 [2016] PIERL 57 [2015] PIERL 56 [2015] PIERL 55 [2015] PIERL 54 [2015] PIERL 53 [2015] PIERL 52 [2015] PIERL 51 [2015] PIERL 50 [2014] PIERL 49 [2014] PIERL 48 [2014] PIERL 47 [2014] PIERL 46 [2014] PIERL 45 [2014] PIERL 44 [2014] PIERL 43 [2013] PIERL 42 [2013] PIERL 41 [2013] PIERL 40 [2013] PIERL 39 [2013] PIERL 38 [2013] PIERL 37 [2013] PIERL 36 [2013] PIERL 35 [2012] PIERL 34 [2012] PIERL 33 [2012] PIERL 32 [2012] PIERL 31 [2012] PIERL 30 [2012] PIERL 29 [2012] PIERL 28 [2012] PIERL 27 [2011] PIERL 26 [2011] PIERL 25 [2011] PIERL 24 [2011] PIERL 23 [2011] PIERL 22 [2011] PIERL 21 [2011] PIERL 20 [2011] PIERL 19 [2010] PIERL 18 [2010] PIERL 17 [2010] PIERL 16 [2010] PIERL 15 [2010] PIERL 14 [2010] PIERL 13 [2010] PIERL 12 [2009] PIERL 11 [2009] PIERL 10 [2009] PIERL 9 [2009] PIERL 8 [2009] PIERL 7 [2009] PIERL 6 [2009] PIERL 5 [2008] PIERL 4 [2008] PIERL 3 [2008] PIERL 2 [2008] PIERL 1 [2008]
2018-08-24
Comment on ``Frequency Tunable Low-Cost Microwave Absorber for EMI/EMC Application''
By
Progress In Electromagnetics Research Letters, Vol. 78, 39-43, 2018
Abstract
In a recently published report, Sen and Das [5] proposed a frequency tunable low-cost microwave absorber to obtain tunable absorption spectra. In this paper, we justify that the proposed device is not an absorber. It is observed that the total absorption rates merely reach 2% and 14.85% for the air gaps of 3.5 mm and 7.5 mm, respectively, when the co- and cross-polarization reflections are taken into account in the reported device. Obviously, The original authors erroneously consider a polarization converter as an absorber, and the obvious errors can be found in their paper.
Citation
Hao Zhang Yu Ma Hai Feng Zhang Jing Yang Jia-Xuan Liu , "Comment on ``Frequency Tunable Low-Cost Microwave Absorber for EMI/EMC Application''," Progress In Electromagnetics Research Letters, Vol. 78, 39-43, 2018.
doi:10.2528/PIERL18052602
http://www.jpier.org/PIERL/pier.php?paper=18052602
References

1. Zhai, H. Q., C. H. Zhan, L. Liu, and C. H. Liang, "A new tunable dual-band metamaterial absorber with wide-angle TE and TM polarization stability," Journal of Electromagnetic Waves and Applications, Vol. 29, No. 6, 774-785, 2015.
doi:10.1080/09205071.2015.1024335

2. Xiong, H., Y. B. Wu, J. Dong, M. C. Tang, Y. N. Jiang, and X. P. Zeng, "Ultra-thin and broadband tunable metamaterial graphene absorber," Opt. Express, Vol. 26, No. 2, 1681-1688, 2018.
doi:10.1364/OE.26.001681

3. Yao, G., F. R. Ling, J. Yue, C. Y. Luo, J. Ji, and J. Q. Yao, "Dual-band tunable perfect metamaterial absorber in the THz range," Opt. Express, Vol. 24, No. 2, 1518-1527, 2016.
doi:10.1364/OE.24.001518

4. Li, J. L., J. J. Jiang, Y. He, W. H. Xu, M. Chen, L. Miao, and S. W. Bie, "Design of a tunable low-frequency and broadband radar absorber based on active frequency selective surface," IEEE Antennas Wireless Propag. Lett., Vol. 15, 774-777, 2016.
doi:10.1109/LAWP.2015.2473688

5. Sen, G. and S. Das, "Frequency tunable low cost microwave absorber for EMI/EMC application," Progress In Electromagnetics Research Letters, Vol. 74, 47-52, 2018.
doi:10.2528/PIERL17120601

6. Liu, X. B., J. S. Zhang, W. Li, R. Lu, L. M. Li, Z. Xu, and A. X. Zhang, "Three-band polarization converter based on reflective metasurface," IEEE Antennas Wireless Propag. Lett., Vol. 16, 924-927, 2017.
doi:10.1109/LAWP.2016.2614686

7. Huang, X. J., D. Yang, and H. L. Yang, "Multiple-band reflective polarization converter using U-shaped metamaterial," J. Appl. Phys., Vol. 115, No. 10, 103505, 2014.
doi:10.1063/1.4868076