Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2016, Vol. 39 ›› Issue (2): 58-62.doi: 10.13190/j.jbupt.2016.02.012

• Papers • Previous Articles     Next Articles

Buried Dielectric Patch Yagi Antenna with Embedded Metamaterials Structure

CAO Xin-yu1,2, ZHANG Jin-ling1, YANG Hong-zhen2, WEN Shu-hua1, LI Hou-rong1   

  1. 1. School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China;
    2. School of Electrical and Control Engineering, North China Institute of Aerospace Engineering, Hebei Langfang 065000, China
  • Received:2015-08-17 Online:2016-04-28 Published:2016-04-28

Abstract:

Working in the 2.4 GHz wireless industrial scientific medical (ISM) band, a buried dielectric patch Yagi antenna was designed. Antenna metal sheet and medium plate is placed alternately and radiate perpendicular to the antenna surface, belonged to the end-fire antenna. The antenna is improved by embedded metamaterial structure. By using the phase compensation characteristics of metamaterial,the section size shrinks to 69% of the original antenna structure, at the same time, the matching and radiation performance is better than that of original antenna. A full-wave finite element simulation method was adopted to design and analyze the antenna, and the improved antenna return loss is decreased by 3 dB in 2.4 GHz frequency, and then E and H-plane radiation field intensity is got 1 dBi, which achieves the small size and flexibility demand of the antenna. Finally, the time domain finite integration method verifies radiation performance.

Key words: metamaterial, yagi antenna, buried dielectric patch, backward wave

CLC Number: