Open AccessResearch on the single-frequency super-resolution focusing of micro-structured antenna based on time reversal electromagnetic wave
Author(s) -
Tu Hui-Lin,
Shaoqiu Xiao,
Zhi-jie Yang,
BingZhong Wang
Publication year - 2014
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.63.084102
Subject(s) - antenna (radio) , coaxial , resolution (logic) , broadband , signal (programming language) , optics , wavelength , computer science , frequency band , acoustics , physics , telecommunications , artificial intelligence , programming language
The idea that single-frequency electromagnetically excited signal can possess the property of super-resolution focusing under time reversal technique is proposed in this paper. The feasibility of the idea is investigated from the channel theory. A micro-structured model with inter-element spacing of 1/4 wavelength is proposed based on the traditional coaxial probe antenna. Simulated results verify that in combination with time reversal technique, the model shows super-resolution focusing characteristics under single-frequency and broadband input signal excitation. The theoretical analysis and simulated results have great guiding significance for the super-resolution research of the single-frequency and multi-band antennas.