Simplified Pulse Shaping Network for Microwave Signal Focusing Based on Time Reversal

Author

Mu-Sheng Liang ; Bing-Zhong Wang ; Zhi-Min Zhang ; Shuai Ding

Author_Institution

Inst. of Appl. Phys., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

14

fYear

2015

fDate

2015

Firstpage

225

Lastpage

228

Abstract

A simplified pulse-shaping network is proposed for microwave signal focusing based on the time reversal (TR) technique in this letter. The chirped delay line (CDL) designed with chirped electromagnetic-band-gap (CEBG) structures is adopted as the dispersion feedline for predistortion. By using the novel pulse-shaping network with a single CDL, two TR systems with different receiving parts are respectively constructed, analyzed, and tested. The first system contains a 1 ×2 subwavelength array as the receiving array, and the second system has only one receiving antenna. It has been proved experimentally that the time-reversed signals can focus well at the expected output port in both systems, while the TR focusing with super-resolution can be successfully realized in the first system. The proposed network is simple and easy to design.

Keywords

antenna feeds; delay lines; microwave antenna arrays; photonic band gap; pulse shaping; receiving antennas; signal resolution; CDL; CEBG structures; TR technique; chirped delay line; chirped electromagnetic-band-gap structures; dispersion feedline; microwave signal focusing; predistortion; receiving antenna array; simplified pulse shaping network; subwavelength array; time reversal technique; Arrays; Chirp; Feeds; Focusing; Ports (Computers); Receiving antennas; Signal resolution; Chirped delay line; focusing; pulse shaping; time reversal;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2014.2360671

Filename

6912966