We have designed a Metamaterial unit-cell for 9 GHz frequency. Periodic
structure was used at 4.25 × 4.25 mm with a thickness of 0.35 mm and giving us
the 99.99% of absorbance at 9 GHz in simulated results. We have implemented a
rectangular microstrip antenna and loaded it with Metamaterial unit-cells which provided improved results. There were results available for reflection
coefficient (s11 parameter) at 9 GHz and also helping for the reduction of the
Radar Cross Section of an antenna, which reduced more than 20 dB and not
affected its directivity and gain.
Caloz, C. and Itoh, T. (2002) Application of the Transmission Line Theory of Left-Handed (LH) Materials to the Realization of a Microstrip “LH Line”. Proceedings of the IEEE Antennas and Propagation Society International Symposium, Vol. 2, 412-415.
[4]
Singh, D. and Srivastava, V.M. (2018) Low Radar Cross Section of Patch Antenna Using Shorted Stubs Metamaterial Absorber. International Journal of Microwave and Optical Technology, 13, 194-202.
[5]
Balanis, C.A. (2005) Antenna Theory, Analysis and Design. 3rd Edition, John Wiley & Sons, Hoboken.
[6]
Veselago, V.G. (2003) Electrodynamics of Materials with Negative Index of Refraction. Physics-Uspekhi, 173, 790-794.
[7]
Pendry, J.B. (2000) Negative Refraction Makes a Perfect Lens. Physical Review Letters, 85, 3966-3969. https://doi.org/10.1103/PhysRevLett.85.3966
[8]
Pendry, J.B., Holden, A.J., Robbins, D.J. and Stewart, W.J. (1999) Magnetism from Conductors and Enhanced Nonlinear Phenomena. IEEE Transactions on Microwave Theory and Techniques, 47, 2075-2084. https://doi.org/10.1109/22.798002
Baskey, H.B., Jha, A.K. and Akhtar, M.J. (2014) Design of Metamaterial Based Structure for the Radar Cross Section Reduction of a Microstrip Antenna. 2014 IEEE International Microwave and RF Conference, Bangalore, 15-17 December 2014, 104-107.
[11]
Lee, J. and Lim, S. (2011) Bandwidth-Enhanced and Polarisation-Insensitive Metamaterial Absorber Using Double Resonance. Electronics Letters, 47, 8-9.
https://doi.org/10.1049/el.2010.2770
[12]
Singh, D. and Srivastava, V.M. (2018) Dual Resonances Shorted Stub Circular Rings Metamaterial Absorber. AEU-International Journal of Electronics and Communication, 83, 58-66. https://doi.org/10.1016/j.aeue.2017.08.034
[13]
Singh, D. and Srivastava, V.M. (2017) Triple Band Regular Decagon Shaped Metamaterial Absorber for X-Band Applications. IEEE International Conference on Computer Communication and Informatics (ICCCI), Coimbatore, 5-7 January 2017, 1-5. https://doi.org/10.1109/ICCCI.2017.8117766
[14]
Li, W.H., Yang, S., Zhang, J.Q., Sai, S., Yuan, H.Y. and Qu, S.B. (2015) The RCS Reduction of Microstrip Antenna Design Based on Multi-Band Metamaterial Absorber. 2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP), Suzhou, 1-3 July 2015, 1-3.
[15]
Mao, Z., Liu, S., Bian, B., Wang, B., Ma, B., Chen, L. and Xu, J. (2014) Multi-Band Polarization Insensitive Metamaterial Absorber Based on Chinese Ancient Coin-Shaped Structures. Journal of Applied Physics, 115, Article ID: 204505.
[16]
Agarwal, M. and Meshram, M.K. (2015) X-Band Metamaterial Absorber with Dual Band/Broadband Absorption Characteristics. 2015 IEEE MTT-S International Microwave and RF Conference (IMaRC), Hyderabad, 10-12 December 2015, 121-124.
[17]
Zhai, H., Zhan, C. and Li, Z. (2015) A Triple-Band Ultrathin Metamaterial Absorber with Wide-Angle and Polarization Stability. IEEE Antennas and Wireless Propagation Letters, 14, 241-244. https://doi.org/10.1109/LAWP.2014.2361011
[18]
Zhang, Z.-X. and Zhang, J.-C. (2016) RCS Reduction for Patch Antenna Based on Metamaterial Absorber. 2016 Progress in Electromagnetic Research Symposium (PIERS), Shanghai, 8-11 August 2016, 364-368.
[19]
Liu, Y., Hao, Y., Jia, Y. and Gong, S.-X. (2014) A Low RCS Dual-Frequency Microstrip Antenna with Complementary Split-Ring Resonators. Progress in Electromagnetics Research, 146, 125-132. https://doi.org/10.2528/PIER14031703
[20]
Wang, B.-Y., Liu, S.-B., Bian, B.-R., Mao, Z.-W., Liu, X.-C., Ma, B. and Chen, L. (2014) A Novel Ultrathin and Broadband Microwave Metamaterial Absorber. Journal of Applied Physics, 116, Article ID: 094504. https://doi.org/10.1063/1.4894824
[21]
Lu, L., Qu, S.B., Su, X., Shang, Y.B., Zhang, J.Q. and Bai, P. (2013) Simulation and Experiment Demonstration of an Ultra-Thin Wide-Angle Planar Metamaterial Absorber. Physics, 62, Article ID: 208103. https://doi.org/10.7498/aps.62.208103
[22]
Jafari, F.S., Naderi, M., Hatami, A. and Zarrabi, F.B. (2019) Microwave Jerusalem Cross Absorber by Metamaterial Split Ring Resonator Load to Obtain Polarization Independence with Triple Band Application. International Journal of Electronics and Communications (AEü), 101, 138-144.
[23]
Jang, H.K., Lee, W.J. and Kim, C.G. (2010) Design and Fabrication of a Microstrip Patch Antenna with a Low RCS in X-Band. Smart Materials and Structures, 20, 1-8.
https://doi.org/10.1088/0964-1726/20/1/015007
[24]
Sharma, A., Gangwar, D., Kanaujia, B.K. and Dwari, S. (2019) Analysis and Design of an Ultra-Thin Metamaterial Absorber and Its Application for In-Band RCS Reduction of Antenna. Journal of Electromagnetic Waves and Applications, 33, 654-667.
[25]
Lee, J., Yoon, Y.J. and Lim (2012) Ultra-Thin Polarization Independent Absorber Using Hexagonal Interdigital Metamaterial. Electronics and Telecommunications Research Institute Journal (ETRI), 34, 126-129.
https://doi.org/10.4218/etrij.12.0211.0081
