Compact high frequency true-time-delay beamformer using bidirectional reflectance of the fiber gratings

被引：17

作者：

Fan, Chao ^{[2
]}

Huang, Shanguo ^{[2
]}

Gao, Xinlu ^{[1
]}

Zhou, Jing ^{[1
]}

Gu, Wanyi ^{[2
]}

Zhang, Hanyi ^{[3
]}

机构：

[1] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China

[2] Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China

[3] Tsinghua Univ, Dept Elect Engn, State Key Lab Integrated Optoelect, Natl Lab Informat Sci & Technol, Beijing 100084, Peoples R China

来源：

OPTICAL FIBER TECHNOLOGY | 2013年 / 19卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Fiber gratings; Beamformer; True time delay; BRAGG GRATINGS; LINE; UNIT;

D O I：

10.1016/j.yofte.2012.11.001

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A compact high frequency true time delay (TTD) beamformer using bidirectional reflectance of the fiber gratings (FGs) is proposed. The FGs can be a set of fiber Bragg gratings (FBGs) or chirped fiber gratings (CFGs). The number and the length of the time delay lines are greatly reduced compared to the previous systems. A phase array antennas system using this TTD beamformer has many advantages including being compact, low requirement on the bandwidth of the tunable laser source and working at high microwave frequency. The proof-of-concept experiment results demonstrated the feasibility of the proposed scheme. (C) 2012 Elsevier Inc. All rights reserved.

引用

页码：60 / 65

页数：6

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