Open AccessSubwavelength antenna array based on far-field time reversal
Author(s) -
MuSheng Liang,
BingZhong Wang,
Zhimin Zhang,
Shuai Ding,
Rui Zang
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.058401
Subject(s) - antenna array , near and far field , antenna (radio) , wideband , optics , sensor array , channel (broadcasting) , array processing , signal (programming language) , resolution (logic) , wireless , computer science , array gain , sparse array , physics , signal processing , telecommunications , radar , algorithm , machine learning , artificial intelligence , programming language
Based on far-field time reversal, the super-resolution focusing property of the subwavelength array is analyzed theoretically according to signal processing in this paper. A novel subwavelength array is proposed. It is demonstrated experimentally that the array has super-resolution focusing property in the far-field zone and each element has an independent channel. With this kind of subwavelength array used in time reversal mirror, better super-resolution focusing result is achieved. The proposed subwavelength array may be useful in the applications of multi-antenna ultra-wideband (UWB) wireless communications.