Study on Power Synthesis of THz Continuous-Wave Signal by Multiple Optical Beats

多光拍太赫兹连续波信号功率合成研究

• 批准号: 23560420
• 负责人: CHUJO WATARU
• 金额: $ 3.41万
• 依托单位: Meijo University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23560420/
• 关键词: マイクロ波・ミリ波; テラヘルツ; マイクロ波; ミリ波

6-GHz continuous signal was coherently synthesized with in-phase and reversed-phase by two optical beats. 6-GHz continuous signal was synthesized spatially by adjustment of SMF length or DFB-LD wavelength. Measured power of 6-GHz signal synthesized with in-phase was increased by almost 6dB compared with that generated by one optical beat. Furthermore, 20-GHz continuous signal was coherently synthesized by two optical beats and detected by SBD detector. Measured power of 20-GHz signal synthesized with in-phase was increased by around 4 dB compared with that generated by one optical beat.In addition to the coherent synthesis, 6-GHz continuous signals were incoherently synthesized by two optical beats. The power of incoherently synthesized 6-GHz signal was increased by 3dB compared with that generated by one optical beat. 6-GHz continuous signals were also synthesized spatially using dipole antennas and the microwave power was increased by almost 3dB.

通过两次光拍，相干地合成了同相和反相的6ghz连续信号。通过调整SMF长度或DFB-LD波长，在空间上合成了6ghz连续信号。同相合成的6ghz信号的测量功率比单次光拍产生的信号提高了近6dB。在此基础上，用两个光拍相干合成20 ghz连续信号，并用SBD探测器进行检测。同相合成的20 ghz信号的测量功率比单次光拍产生的功率提高了约4 dB。在相干合成的基础上，利用两个光拍非相干合成了6 ghz连续信号。与一次光拍相比，非相干合成的6ghz信号功率提高了3dB。利用偶极子天线在空间上合成了6ghz连续信号，微波功率提高了近3dB。

项目成果

Phase Control and Calibration Characteristics of Optically Controlled Phased Array Antenna Feed Using Multiple SMFs

使用多个 SMF 的光控相控阵天线馈电的相位控制和校准特性

• DOI: 10.1587/transele.e94.c.1634
• 发表时间: 2011
• 期刊: IEICE Transactions on Electronics
• 影响因子: 0.5
• 作者: D. Takeuchi;W. Chujo;S. Yamamoto;Y. Koyamada
• 通讯作者: Y. Koyamada

ビート光を用いて生成した20GHz信号の位相合成実験

利用拍光产生的20GHz信号的相位合成实验

• 发表时间: 2012
• 作者: 竹内大樹;中條渉;山本伸一;小山田弥平
• 通讯作者: 小山田弥平

ビート光を用いて生成したマイクロ波の空間電力合成実験

拍频光产生微波的空间功率合成实验

• 发表时间: 2011
• 作者: 竹内大樹;真田幸和;中條渉;山本伸一;小山田弥平
• 通讯作者: 小山田弥平

Coherent synthesis of two continuous microwave signals generated by two optical beats

由两个光拍产生的两个连续微波信号的相干合成

• DOI: 10.1587/elex.11.20140209
• 发表时间: 2014
• 期刊: IEICE Electronics Express
• 影响因子: 0.8
• 作者: Daiki Takeuchi;Wataru Chujo;Shin-ichi Yamamoto;and Yahei Koyamada
• 通讯作者: and Yahei Koyamada

Papers and Conference presentations

论文和会议报告