High Gain Patch Antenna with Composite Right-Left Handed Structure and Dendritic Cell Metamaterials

  • Yahong Liu
  • Xiaopeng Zhao


We present a novel high-gain patch antenna utilizing composite right-left handed (CRLH) structure and dendritic cell metamaterials. The proposed CRLH antenna, composed of modified Sievenpiper mushroom unit-cells, is based on the positive first-order resonance mode for high gain. In addition, the dendritic cell metamaterials are used to surround the proposed antenna to further increase the antenna directivity and gain due to suppressing the surface waves. The experimental results show that the gain and the directivity of the proposed antenna with CRLH and dendritic cells can be improved by 3.88 dB and 8.82, respectively, in comparison with a conventional patch antenna. Moreover, a 10-dB bandwidth with 9.55% is achieved. The measured results are in good agreement with the simulated ones.


Patch antenna CRLH Dendritic metamaterials Radiation patterns High gain 



This work is supported by the National Natural Science Foundation of China (Grant No.50872113), the state Key Development Program for Basic Research of China (Grant No. 2004CB719805), and the Defense Basic Research Program of China.


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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Department of Applied PhysicsNorthwestern Polytechnical UniversityXi’anPeople’s Republic of China

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