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Design of a Three Dimensional Folded Monopole Antenna Using Current Flow

  • Liu, Yulin (Division of Bioelectronics, Chungbuk National University) ;
  • Lee, Seung-Woo (College of Electrical and Computer Engineering, Chungbuk National University) ;
  • Kim, Nam (College of Electrical and Computer Engineering, Chungbuk National University)
  • Received : 2010.05.13
  • Published : 2010.06.30

Abstract

A new type of monopole antenna whit broadband characteristics is presented in this article. To reduce the size of the antenna, its upper part is folded. By separating the current flow, the resonance in the shorter part is in the higher band; and the longer part resonates in the lower band. This gives the broadband characteristics of the antenna. Slots on the corner using an oblique line improve the impedance matching and bandwidth. The measurement results show that the bandwidth operates from 0.848~0.992 GHz and 1.744~2.528 GHz, and the radiation patterns are in an omni-directional shape.

Keywords

References

  1. K. L. Wong, Planar Antennas for Wireless Communications, Wiley, New York, 2003.
  2. Sung-Keun Jeon, Nam Kim, Seung-Woo Lee, and Liu-Yu Lin, "Analysis of the multi surface current distributed within in a broadband printed monopole antenna", PIERS 2009, Beijing, China, pp. 503-506, 2009.
  3. G. Kumar, K. P. Ray, Broadband Microstrip Antennas, Artech House, Boston, pp. 359-360, 2003.
  4. Yong-Sun Shin, Seong-Ook Park, and Manjai Lee, "A broadband interior antenna of planar monopole type in handsets", IEEE Antennas and Wireless Propagtion Letters, vol. 4, 2005. https://doi.org/10.1109/LAWP.2004.841623
  5. Shun-Yun Lin, "Multi-band folded planar monopole antenna for a mobile handset", IEEE Trans. Antennas Propagat., vol. 52, pp. 1790-1794, Jul. 2004. https://doi.org/10.1109/TAP.2004.831315
  6. Seung-Woo Lee, Nam Kim, Sung-Wu Park, Sung- Keun Jeon, and Seung-Yeup Rhee, "Design of trapezoidal ring antenna using conductor-backed CPW structure", PIERS 2009, Beijing, China, pp. 559-562, 2009.
  7. Sungwu Park, Nam Kim, Seungyeop Rhee, and Seungwoo Lee, "Spiral slot antenna fed by coplanar waveguide using magnetic phase difference", Microwave and Optical Technology Letters, vol. 52, no. 1, pp. 28-30, Jan. 2010. https://doi.org/10.1002/mop.24821

Cited by

  1. Design of the Linked Patch Monopole Antenna and Its SAR Analysis along with Antenna Direction vol.23, pp.10, 2012, https://doi.org/10.5515/KJKIEES.2012.23.10.1117