Enhanced bandwidth of a microstrip antenna using a parasitic mushroom-like metamaterial structure for multi-robot cooperative navigation

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• 作者：Cherl-Hee Lee (1)
  Jonghun Lee (2)
  Yoon-Gu Kim (2)
  Jinung An (2)
  
  1. College of IT Engineering ; Kyungpook National University ; Daegu ; 702-701 ; Korea
  2. Robotics Research Division ; Daegu Gyeongbuk Institute of Science & Technology ; Daegu ; 711-813 ; Korea
  
• 关键词：Metamaterials ; Mushroom ; Parasitic ; Multi ; robot
• 刊名：Journal of the Korean Physical Society
• 出版年：2015
• 出版时间：January 2015
• 年：2015
• 卷：66
• 期：1
• 页码：92-95
• 全文大小：703 KB
• 参考文献：1. Y.-G. Kim, J. An, K.-D. Kim, Z.-G. Xu and S.-G. Lee, / Advances in swarm intelligence Lecture notes in Computer Science, Volume 6729, Xth ed (Springer, Berlin, 99, 2011). CrossRef
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• 刊物主题：Physics, general; Theoretical, Mathematical and Computational Physics; Particle and Nuclear Physics;
• 出版者：Springer Netherlands
• ISSN：1976-8524

文摘

The broadband design of a microstrip patch antenna is presented and experimentally studied for multi-robot cooperation. A parasitic mushroom-like metamaterial (MTM) patch close to a microstrip top patch is excited through gap-coupling, thereby producing a resonance frequency. Because of the design, the resonance frequency of the parasitic MTM patch is adjacent to that of the main patch, and the presented antenna can achieve an enhanced bandwidth of 450 MHz, which is about two times the bandwidth of a conventional patch antenna without the MTM parasitic patch. The error rate of packet transmissions for measuring the distance between a leader robot and a follower robot was also improved by almost two-fold.