A novel power-combination method using a time-reversal pulse-compression technique  

作　　者：陆希成 田锦 张荣威 汪海波 邱扬 Xi-Cheng Lu;Jin Tian;Rong-Wei Zhang;Hai-Bo Wang;Yang Qiu(College of Mechanical and Electrical Engineering,Xidian University,Xi'an 710071,China;School of Information and Communications Engineering,Xi'an Jiaotong University,Xi'an 710049,China;Northwest Institute of Nuclear Technology,Xi'an 710024,China)

机构地区：[1]College of Mechanical and Electrical Engineering,Xidian University,Xi'an 710071,China [2]School of Information and Communications Engineering,Xi'an Jiaotong University,Xi'an 710049,China [3]Northwest Institute of Nuclear Technology,Xi'an 710024,China

出　　处：《Chinese Physics B》2023年第8期283-288,共6页中国物理B（英文版）

基　　金：Project supported by the National Key R&D Program of China(Grant No.2021YFC2203503)。

摘　　要：The electromagnetic time-reversal(TR)technique has the characteristics of spatiotemporal focusing in a time-reversal cavity(TRC),which can be used for pulse compression,thus forming an electromagnetic pulse with high peak power.A time-reversed pulse-compression method in a single channel has high pulse compression gain.However,single channel pulse compression can only generate limited gain.This paper proposes a novel TR power-combination method in a multichannel TRC to obtain higher peak power based on TR pulse-compression theory.First,the TR power-combination model is given,and the crosstalk properties of the associated channel and the influence of the reversal performance are studied.Then,the power-combination performances for the TR pulse compression,such as combined signal to noise ratio(SNR)and combined compression gain,are analyzed by numerical simulation and experimental methods.The results show that the proposed method has obvious advantages over pulse-compression methods using a single channel cavity,and is more convenient for power combination.

关 键 词：time reversal time-reversal cavity power combination pulse compression 

分 类 号：TN73[电子电信—电路与系统]