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High Gain Microstrip Antenna Based on Zero-Index Metamaterials

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2018-08-01
Journal2018 Progress in Electromagnetics Research Symposium (PIERS-Toyama)
AuthorsYu Zhang, Minquan Li, Xu Pan, Xiaopan Xia, Yanyang Liu
InstitutionsAnhui University
Citations1

Abstract

Section titled ā€œAbstractā€

In order to improve the radiation performance of the microstrip antenna, a metal-dielectric-metal structure zero-index metamaterials, which can enhance the antenna gain and directivity, is proposed in this paper. The structure consists of <tex xmlns:mml=ā€œhttp://www.w3.org/1998/Math/MathMLā€ xmlns:xlink=ā€œhttp://www.w3.org/1999/xlinkā€&gt;&#36;6 \times 6$</tex> simple metal diamonds and metal branches. Acccording to the equivalent parameters extracted by HFSS simulation and Nicolson-Ross-Weir method, the zero-index properties of this material were verified. By designing the zero-index metamaterials structure as the superstrate of the microstrip antenna and placing it parallel above the antenna, a high-gain, narrow-beam microstrip antenna with a center frequency of 7.9 GHz was designed. The experimental results show that the planar lens effect of zero-index metamaterials can enhance the directivity of the antenna. Compared with the original microstrip antenna, the performance of the antenna designed in this paper is greatly improved. The half-power beamwidths of <tex xmlns:mml=ā€œhttp://www.w3.org/1998/Math/MathMLā€ xmlns:xlink=ā€œhttp://www.w3.org/1999/xlinkā€&gt;&#36;E&#36;&lt;/tex> -plane and <tex xmlns:mml=ā€œhttp://www.w3.org/1998/Math/MathMLā€ xmlns:xlink=ā€œhttp://www.w3.org/1999/xlinkā€&gt;&#36;H&#36;&lt;/tex> -plane shrunk by 88Ā° and 22Ā°, respectively. The lateral radiation attenuation was significantly reduced, and the antenna gain was increased by 6.32 dB.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. 2010 - A C-band high-gain microstrip antenna using negative permeability metamaterial substrate
  2. 2016 - Wideband high-gain microstrip antenna based on frequency selective surface
  3. 2014 - Microwave antenna based on low refractive index medium
  4. 2012 - High-gain microstrip antenna based on perfect absorbing metanaterial
  5. 2014 - A dual-band and high-gain microstrip antenna based on FSS
  6. 2014 - A slot coupling stacked broadband microstrip array antenna with EBG structures reflector

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