JP2014096637A5 - - Google Patents

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Publication number
JP2014096637A5
JP2014096637A5 JP2012245651A JP2012245651A JP2014096637A5 JP 2014096637 A5 JP2014096637 A5 JP 2014096637A5 JP 2012245651 A JP2012245651 A JP 2012245651A JP 2012245651 A JP2012245651 A JP 2012245651A JP 2014096637 A5 JP2014096637 A5 JP 2014096637A5
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JP
Japan
Prior art keywords
phase shift
phase
downlink
signal
output
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JP2012245651A
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Japanese (ja)
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JP5983325B2 (en
JP2014096637A (en
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Priority to JP2012245651A priority Critical patent/JP5983325B2/en
Priority claimed from JP2012245651A external-priority patent/JP5983325B2/en
Publication of JP2014096637A publication Critical patent/JP2014096637A/en
Publication of JP2014096637A5 publication Critical patent/JP2014096637A5/ja
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Claims (1)

当該下りＲＦ光信号生成手段が、当該下りＲＦ信号の位相をシフトする複数の第１の移相手段（１１９−１〜１１９−ｎ）と、当該複数のレーザの出力光のそれぞれを、当該第１の移相手段（１１９−１〜１１９−ｎ）の各出力に従い強度変調する複数の光変調手段（１１６−１〜１１６−ｎ）とを具備し、
当該複数のフィルタ手段のそれぞれと当該制御手段との間に配置され、当該フィルタ手段の出力の位相を調整する第２の移相手段を具備する
ことを特徴とする請求項１乃至６の何れか１項に記載のＲＦ信号光伝送システム。


The downlink RF optical signal generation unit converts each of the plurality of first phase shift units (119-1 to 119-n) for shifting the phase of the downlink RF signal and the output light of the plurality of lasers to the first A plurality of light modulation means (116-1 to 116-n) that modulate the intensity in accordance with the outputs of one phase shift means (119-1 to 119-n),
7. A second phase shift means that is arranged between each of the plurality of filter means and the control means and adjusts the phase of the output of the filter means. RF signal optical transmission system according to item 1.


JP2012245651A 2012-11-07 2012-11-07 RF signal transmission system Active JP5983325B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012245651A JP5983325B2 (en) 2012-11-07 2012-11-07 RF signal transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012245651A JP5983325B2 (en) 2012-11-07 2012-11-07 RF signal transmission system

Publications (3)

Publication Number Publication Date
JP2014096637A JP2014096637A (en) 2014-05-22
JP2014096637A5 true JP2014096637A5 (en) 2015-09-10
JP5983325B2 JP5983325B2 (en) 2016-08-31

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ID=50939415

Family Applications (1)

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JP2012245651A Active JP5983325B2 (en) 2012-11-07 2012-11-07 RF signal transmission system

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JP (1) JP5983325B2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2530069A (en) * 2014-09-12 2016-03-16 Bae Systems Plc Signal processing apparatus
WO2017077787A1 (en) 2015-11-04 2017-05-11 株式会社フジクラ Phased array antenna
CN108292803B (en) 2015-11-25 2020-05-19 株式会社藤仓 Phased array antenna
JP6666217B2 (en) * 2016-09-01 2020-03-13 日本電信電話株式会社 Communication method and communication system
JP6625503B2 (en) * 2016-09-27 2019-12-25 Kddi株式会社 Analog RoF system and optical communication method
US10097282B1 (en) * 2018-01-26 2018-10-09 Litepoint Corporation System and method for testing a device under test (DUT) capable of determining relative times of arrival or angles of arrival of multiple radio frequency signals
JP7193716B2 (en) * 2018-12-10 2022-12-21 日本電信電話株式会社 Wireless communication system, master station device and wireless communication method
US11736191B2 (en) * 2019-06-26 2023-08-22 Nippon Telegraph And Telephone Corporation Wireless communication system, accommodation apparatus and wireless communication method
JP7557150B2 (en) 2021-02-12 2024-09-27 日本電信電話株式会社 Wireless communication system and wireless communication method
EP4383780A1 (en) * 2021-08-05 2024-06-12 Nippon Telegraph And Telephone Corporation Wireless communication device, wireless communication system and wireless communication method
JP7471550B1 (en) 2023-10-12 2024-04-19 三菱電機株式会社 Semiconductor photodetector, optical line terminal, multilevel intensity modulation transmitter/receiver, digital coherent receiver, optical fiber radio system, SPAD sensor system, and lidar device
JP7511793B1 (en) 2023-11-13 2024-07-05 三菱電機株式会社 Semiconductor photodetector, optical line terminal, multilevel intensity modulation transmitter/receiver, digital coherent receiver, optical fiber radio system, SPAD sensor system, and lidar device
JP7562047B1 (en) 2023-12-20 2024-10-04 三菱電機株式会社 Semiconductor photodetector, optical line terminal, multilevel intensity modulation transmitter/receiver, digital coherent receiver, optical fiber radio system, SPAD sensor system, and lidar device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3054167B2 (en) * 1990-04-24 2000-06-19 日本放送協会 Bidirectional optical transmission system and optical receiver
JPH08107385A (en) * 1994-10-05 1996-04-23 Nippon Telegr & Teleph Corp <Ntt> Optical transmitter
JPH09215048A (en) * 1996-02-06 1997-08-15 Nippon Telegr & Teleph Corp <Ntt> Optical link for radio signal transmission
JP3997294B2 (en) * 1996-11-13 2007-10-24 独立行政法人情報通信研究機構 Mobile radio communication system
JP3564077B2 (en) * 2001-03-29 2004-09-08 独立行政法人情報通信研究機構 Phase control device for optically controlled phased array antenna and optically controlled phased array antenna system
JP3829670B2 (en) * 2001-09-06 2006-10-04 三菱電機株式会社 Optical control array antenna
US7085497B2 (en) * 2002-04-03 2006-08-01 Lockheed Martin Corporation Vehicular communication system
JP4894659B2 (en) * 2007-07-19 2012-03-14 Ｋｄｄｉ株式会社 Optical transmission system

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