Study on the effect of radiation pattern on the field coverage in rectangular tunnel by fdtd method and point source array approximation

Author

Da-Wei Li ; Yu-Wei Huang ; Jun-Hong Wang ; Mei-E Chen ; Zhan Zhang

Author_Institution

Key Lab. of All Opt. Network & Adv. Telecommun. Network of MOE, Beijing Jiaotong Univ., Beijing, China

Volume

02

fYear

2013

fDate

23-25 Oct. 2013

Firstpage

697

Lastpage

700

Abstract

In this paper, the effect of radiation performance of antenna array in confined space on the field coverage is analyzed. In order to find the suitable radiation pattern that can give smoother wave coverage in confined space, a simple but efficient numerical method based on the parallel FDTD method and point source array approximation is presented. The current on each array element is obtained from the desired radiation pattern using synthesis method. This current distribution is then set to the FDTD mesh as the excitation. By this method, field coverage of three kinds of antennas with different radiation patterns in a rectangular tunnel is analyzed. The results show that the antenna with narrower beam width can give smoother field coverage in the tunnel.

Keywords

antenna radiation patterns; approximation theory; finite difference time-domain analysis; FDTD mesh; FDTD method; antenna array radiation performance; confined space; field coverage; numerical method; point source array approximation; radiation pattern effect; rectangular tunnel; wave coverage; Antenna arrays; Antenna measurements; Arrays; Propagation losses; Radio access networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas & Propagation (ISAP), 2013 Proceedings of the International Symposium on

Conference_Location

Nanjing

Print_ISBN

978-7-5641-4279-7

Type

conf

Filename

6717570