Journal of South China University of Technology (Natural Science Edition) ›› 2011, Vol. 39 ›› Issue (3): 140-144.doi: 10.3969/j.issn.1000-565X.2011.03.027

• Electronics, Communication & Automation Technology • Previous Articles     Next Articles

Double-Side Radiating Leaky-Wave Antenna Based on Composite Right/Left-Handed Coplanar Waveguide

 Liu Chuan-yun  Chu Qing-xin  Huang Jian-quan   

  1. School of Electronic and Information Engineering，South China University of Technology，Guangzhou 510640，Guangdong，China
  • Received:2010-03-04 Revised:2010-06-27 Online:2011-03-25 Published:2011-02-01
  • Contact: 刘传运(1983-)，男，博士，主要从事异向介质激发机理及微波工程应用研究 E-mail:chyun.1iu@mail.scut.edu.cn
  • About author:刘传运(1983-)，男，博士，主要从事异向介质激发机理及微波工程应用研究
  • Supported by:

    国家自然科学基金资助项目(60801033，U0635004)

PDF

1895

Abstract:

Proposed in this paper is a double-side radiating leaky-wave antenna based on composite right/left-handed（CRLH） coplanar waveguide（CPW）.By analyzing the dispersion diagram of the antenna unit,a balanced property is confirmed.The designed antenna can implement backfire radiation due to the left-handed property of the CRLH structure,and,in balanced cases,the gap between left-handed and right-handed regions can be su-ppressed.Consequently,a traveling wave along the structure occurs and the antenna implements transverse radiation at the balance point with non-zero group velocity.Measured results show that the proposed antenna can offer continuous radiation almost covering backfire-to-endfire directions.

Key words: leaky-wave antenna, double-side radiation, coplanar waveguide