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Design of Dielectric-loaded Compact Broadband Circularly-polarized Helix Antenna by Using Multiobjective Evolutionary Algorithm based on Decomposition(MOEA/D)

Dawei DingYouwei TuYunxuan LinXiaodong Ding

School of Computer Science and Communication Engineering, Jiangsu University

摘要:This paper presents the design of a compact broadband circularly-polarized helix antenna. The proposed antenna consists of a low-profile metal-strip helix structure fed by a coaxial probe and three different dielectric blocks. In this design, dielectric materials with high permittivity are for miniaturization. All dimensions of the design are obtained by using multiobjective evolutionary algorithm based on decomposition combined with differential evolution(MOEA/DDE). Simulation results show the 10 dB impedance bandwidth, 3 dB axial-ratio bandwidth, and gain of more than 6 dB i over the band of 1.88 GHz-2.69 GHz. The overall size of this design is 28 mm× 28 mm× 32 mm(0.21λ×0.21λ×0.24λ at 2.3 GHz). The proposed antenna is attractive for indoor distributed antenna systems supporting Long Term Evolution(LTE) middle band.
会议名称:

2017 IEEE 2nd Information Technology, Networking, Electronic and Automation Control Conference (ITNEC 2017)

会议时间:

2017-12-15

会议地点:

中国四川成都

  • 专辑:

    信息科技

  • 专题:

    电信技术

  • 分类号:

    TN823.31

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