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
- Laser & Optoelectronics Progress
- Vol. 55, Issue 3, 031602 (2018)
Fig. 1. (a) Geometric structure; (b) unit structure; (c) periodic structure
Fig. 2. Equivalent circuit
Fig. 3. Simulation model of unit structure
Fig. 4. (a) Amplitude curve of S parameters; (b) phase curve of S parameters
Fig. 5. Parameters of unit structure. (a) Equivalent permeability; (b) equivalent permittivity; (c) index of refraction; (d) wave impendence
Fig. 6. Loss in left-handed materials
Fig. 7. Traditional 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
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Table 1. Performance comparison of microstrip antenna based on different left-handed structures
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