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Design and Analysis of High Gain Beamforming Patch ESPAR Antenna for Railroad Wireless Communication

철도 무선통신을 위한 단일 RF 체인을 사용하는 고이득 빔포밍 패치 ESPAR 안테나 설계 및 분석

  • Received : 2015.04.27
  • Accepted : 2015.09.01
  • Published : 2015.08.31

Abstract

In this paper, we design an array antenna structure based on a patch ESPAR(Electronically Steerable Parasitic Array Radiator) antenna with three elements for reliable communication in high-speed railway wireless communication. The ESPAR antenna consists of the active element with a single RF-chain and the parasitic elements surrounding an active element. The ESPAR antenna is capable of beamforming by adjusting the reactance of the parasitic element. We propose a vertical array antenna structure based on the patch ESPAR antenna and simulate it according to the change of the number of antennas and the distance between antenna rows. The simulation results show that we can get the maximum beam gain and highest directivity when the distance between antenna rows is ${\lambda}$.

Keywords

ESPAR Antenna;Beamforming;Array Antenna;High-Gain Beam;Single RF-Chain

References

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Acknowledgement

Supported by : 한국연구재단, 국토교통과학기술진흥원