• Laser & Optoelectronics Progress
  • Vol. 55, Issue 3, 031602 (2018)
Yapeng Zhu, Zhengping Zhang, and Qiao Liu*
Author Affiliations
  • College of Big Data and Information Engineering, Guizhou University, Guiyang, Guizhou 550025, China
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    DOI: 10.3788/LOP55.031602 Cite this Article Set citation alerts
    Yapeng Zhu, Zhengping Zhang, Qiao Liu. Design of Broadband and Low Loss Left-Handed Structure for Improving Microstrip Antenna Gain[J]. Laser & Optoelectronics Progress, 2018, 55(3): 031602 Copy Citation Text show less
    (a) Geometric structure; (b) unit structure; (c) periodic structure
    Fig. 1. (a) Geometric structure; (b) unit structure; (c) periodic structure
    Equivalent circuit
    Fig. 2. Equivalent circuit
    Simulation model of unit structure
    Fig. 3. Simulation model of unit structure
    (a) Amplitude curve of S parameters; (b) phase curve of S parameters
    Fig. 4. (a) Amplitude curve of S parameters; (b) phase curve of S parameters
    Parameters of unit structure. (a) Equivalent permeability; (b) equivalent permittivity; (c) index of refraction; (d) wave impendence
    Fig. 5. Parameters of unit structure. (a) Equivalent permeability; (b) equivalent permittivity; (c) index of refraction; (d) wave impendence
    Loss in left-handed materials
    Fig. 6. Loss in left-handed materials
    Traditional microstrip antenna. (a) Schematic; (b) return loss; (c) gain; (d) HPBW
    Fig. 7. Traditional microstrip antenna. (a) Schematic; (b) return loss; (c) gain; (d) HPBW
    Designed microstrip antenna. (a) Schematic; (b) return loss; (c) gain; (d) HPBW
    Fig. 8. Designed microstrip antenna. (a) Schematic; (b) return loss; (c) gain; (d) HPBW
    MicrostripantennaRef.[9]Ref.[10]Ref.[11]Ref.[12]Proposed
    Gain /dB2.50.232.62.03.88
    HPBW /(°)-29353541.11
    Table 1. Performance comparison of microstrip antenna based on different left-handed structures
    Yapeng Zhu, Zhengping Zhang, Qiao Liu. Design of Broadband and Low Loss Left-Handed Structure for Improving Microstrip Antenna Gain[J]. Laser & Optoelectronics Progress, 2018, 55(3): 031602
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