Chin. Phys. B ›› 2013, Vol. 22 ›› Issue (4): 48401-048401.doi: 10.1088/1674-1056/22/4/048401

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

Wideband dipole antenna with inter-digital capacitor

熊汉, 洪劲松, 金大林   

  1. Institute of Applied Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
  • 收稿日期:2012-06-02 修回日期:2012-09-17 出版日期:2013-03-01 发布日期:2013-03-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61172115 and 60872029), the High-Tech Research and Development Program of China (Grant No. 2008AA01Z206), and the Aeronautics Foundation of China (Grant No. 20100180003).

Wideband dipole antenna with inter-digital capacitor

Xiong Han (熊汉), Hong Jin-Song (洪劲松), Jin Da-Lin (金大林)   

  1. Institute of Applied Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
  • Received:2012-06-02 Revised:2012-09-17 Online:2013-03-01 Published:2013-03-01
  • Contact: Xiong Han E-mail:xiong1226han@126.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61172115 and 60872029), the High-Tech Research and Development Program of China (Grant No. 2008AA01Z206), and the Aeronautics Foundation of China (Grant No. 20100180003).

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摘要： A dipole antenna with wideband characteristics is presented. The proposed antenna consists of a dipole with periodic capacitive loading and a pair of coplanar striplines (CPSs) as an impedance transformer. By adding interlaced coupling lines at each section, periodic capacitive loading is realized. The periodic interlaced coupling lines divide each arm of the dipole into five sections, and currents are distributed on different sections at different frequencies, which is useful to achieve a wide impedance bandwidth. By parametric study using HFSS, the optimized parameters of this dipole antenna are obtained. In order to validate the simulation results, a prototype of the proposed dipole antenna is fabricated and tested. The results show that the proposed antenna can achieve a gain of 3.1 dB-5.1 dB and bandwidth of 51% for |S11|< -10 dB over the band of 3.9 GHz-6.6 GHz, indicating its good radiation performance and radiation efficiency.

关键词: dipole antenna, wideband antenna, inter digital capacitor

Abstract: A dipole antenna with wideband characteristics is presented. The proposed antenna consists of a dipole with periodic capacitive loading and a pair of coplanar striplines (CPSs) as an impedance transformer. By adding interlaced coupling lines at each section, periodic capacitive loading is realized. The periodic interlaced coupling lines divide each arm of the dipole into five sections, and currents are distributed on different sections at different frequencies, which is useful to achieve a wide impedance bandwidth. By parametric study using HFSS, the optimized parameters of this dipole antenna are obtained. In order to validate the simulation results, a prototype of the proposed dipole antenna is fabricated and tested. The results show that the proposed antenna can achieve a gain of 3.1 dB-5.1 dB and bandwidth of 51% for |S11|< -10 dB over the band of 3.9 GHz-6.6 GHz, indicating its good radiation performance and radiation efficiency.

Key words: dipole antenna, wideband antenna, inter digital capacitor

中图分类号:  (Antennas: theory, components and accessories)

  • 84.40.Ba
84.32.Tt (Capacitors)