JP4478680B2 - 送受信兼用信号インターフェース - Google Patents
送受信兼用信号インターフェース Download PDFInfo
- Publication number
- JP4478680B2 JP4478680B2 JP2006520285A JP2006520285A JP4478680B2 JP 4478680 B2 JP4478680 B2 JP 4478680B2 JP 2006520285 A JP2006520285 A JP 2006520285A JP 2006520285 A JP2006520285 A JP 2006520285A JP 4478680 B2 JP4478680 B2 JP 4478680B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- waveguide
- port
- transmission
- optical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 138
- 230000003287 optical effect Effects 0.000 claims description 85
- 230000008878 coupling Effects 0.000 claims description 23
- 238000010168 coupling process Methods 0.000 claims description 23
- 238000005859 coupling reaction Methods 0.000 claims description 23
- 230000001902 propagating effect Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- 230000002427 irreversible effect Effects 0.000 claims description 12
- 230000005672 electromagnetic field Effects 0.000 claims description 5
- 230000002441 reversible effect Effects 0.000 claims description 4
- 238000000926 separation method Methods 0.000 description 23
- 238000004891 communication Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 239000013307 optical fiber Substances 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 230000036961 partial effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000000382 optic material Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
- H01P5/10—Coupling devices of the waveguide type for linking dissimilar lines or devices for coupling balanced lines or devices with unbalanced lines or devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/32—Non-reciprocal transmission devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/44—Transmit/receive switching
- H04B1/48—Transmit/receive switching in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
- H04B10/25752—Optical arrangements for wireless networks
- H04B10/25758—Optical arrangements for wireless networks between a central unit and a single remote unit by means of an optical fibre
- H04B10/25759—Details of the reception of RF signal or the optical conversion before the optical fibre
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2210/00—Indexing scheme relating to optical transmission systems
- H04B2210/006—Devices for generating or processing an RF signal by optical means
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Transceivers (AREA)
- Optical Communication System (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
- Communication Control (AREA)
Description
本出願は、タイトルが「Bi−directional Antenna Interface and Optical Link with Low Intrinsic Noise Figure」の米国特許出願第60/488,748号(2003年7月14日出願)の優先権を主張する。その出願の開示全体は、本明細書において参考として援用される。
本発明は、概して、伝送機能及び受信機能の双方を実行するアンテナ信号インターフェースのような信号インターフェースに関する。アンテナは、電流を運ぶことができる導電構造体である。電波を送受信するのにアンテナを用いることができる。時間変化電流がアンテナに電気的に接続されたならば、アンテナは電波を放射する。時間変化電磁界がアンテナにより受信されたならば、アンテナは時間変化電流を生じさせる。
図1Aには、当該技術分野で既知である一般的な送受信兼用の信号インターフェース100を示す。この信号インターフェース100は、伝送信号を受信する入力ポート102と、受信信号を移す出力ポート104とを含む。信号インターフェース100は、信号を送信及び受信する送受信兼用ポート106を含む。
NFmin=10log[1+x]
ここで、xを、
特定の好適な実施形態に関して本発明を特に示し、説明したが、本明細書で規定した本発明の精神及び範囲から逸脱することなく、形態及び細部における様々な変更を行うことができることを当業者は理解すべきである。
Claims (28)
- RF伝送信号を受信するRF入力ポートに結合された一端と、RF受信信号を受信し、該RF伝送信号を送信するRF送受信兼用ポートに結合された他端とを有し、第1の進行波を伝播する第1の導波路と、
該受信されたRF受信信号を移す出力ポートに結合された一端と、レーザの出力部に結合された他端とを有し、第2の進行波を伝播する第2の導波路と、
該第1の導波路と該第2の導波路とを有する非可逆結合器と
を備えた送受信兼用信号インターフェースであって、
該非可逆結合器は、光学変調器であり、該非可逆結合器は、該第1の導波路からの電磁場が、該第1の導波路および該第2の導波路の長さに沿って連続した態様で該第2の導波路に結合されるように、該第1の導波路を該第2の導波路と近接するように位置付け、
該RF送受信兼用ポートからの該RF受信信号は、実質的に非可逆的に該第1の導波路から該第2の導波路へと結合し、該出力ポートを通過し、該RF入力ポートからの該RF伝送信号は、該第1の導波路を通過し該RF送受信兼用ポートに移る、信号インターフェース。 - 前記RF入力ポートからの実質的に全ての前記RF伝送信号が、前記第1の導波路を通過して前記RF送受信兼用ポートに移る、請求項1に記載の信号インターフェース。
- 前記RF送受信兼用ポートからの実質的に全ての前記RF受信信号が、実質的に非可逆的に前記第1の導波路から前記第2の導波路へと結合する、請求項1または2に記載の信号インターフェース。
- 前記第1の導波路、前記第2の導波路および前記非可逆結合器が、電気光学変調器を形成する、請求項1または2に記載の信号インターフェース。
- 前記非可逆結合器が、前記RF受信信号と前記RF伝送信号とのうちの少なくとも一方を、前記第1の進行波と前記第2の進行波とのうちの少なくとも一方に速度整合する電極構造体を備える、請求項1に記載の信号インターフェース。
- 前記RF送受信兼用ポートが、全二重動作で、前記RF受信信号を受信し、前記RF伝送信号を移す、請求項1に記載の信号インターフェース。
- 前記RF送受信兼用ポートが、半二重動作で、前記RF受信信号を受信し、前記RF伝送信号を移す、請求項1に記載の信号インターフェース。
- 光伝送信号を受信する光入力部と、前記RF入力ポートに接続された電気出力部とを有する光検出器をさらに備え、該光検出器は、該電力出力部において該受信された光伝送信号を前記RF伝送信号に変換する、請求項1〜7のいずれか一項に記載の信号インターフェース。
- 前記RF送受信兼用ポートに電気的に接続されたアンテナであって、前記RF受信信号を受信し、前記RF伝送信号を伝送するアンテナをさらに備える、請求項1〜8のいずれか一項に記載の信号インターフェース。
- 前記電気光学変調器は、光ビームを受信する光入力部と、光出力ポートとを有し、該電気光学変調器は、前記RF受信信号によって該光出力ポートにおいて変調された光信号を生成するように構成され、前記RF伝送信号を前記RF送受信兼用ポートへと移動させるように構成される、請求項4に記載の信号インターフェース。
- 前記光ビームが連続波光ビームを含む、請求項10に記載の信号インターフェース。
- 前記光ビームがパルス光ビームを含む、請求項10に記載の信号インターフェース。
- 前記電気光学変調器がマッハツェンダ干渉型変調器を含む、請求項10〜12のいずれか一項に記載の信号インターフェース。
- 前記電気光学変調器が、前記RF受信信号を前記光ビームの光場に速度整合する電極構造体を備える、請求項10〜13のいずれか一項に記載の信号インターフェース。
- 光伝送信号を受信する光入力部と、前記RF入力ポートに接続された電気出力部とを有する光検出器をさらに備え、該光検出器は、該電気出力部において該受信された光伝送信号を前記RF伝送信号に変換する、請求項10〜14のいずれか一項に記載の信号インターフェース。
- 前記光検出器の出力部に電気的に接続された入力部と、前記RF入力ポートに電気的に接続された出力部とを有し、前記RF伝送信号を電気的に増幅する増幅器をさらに備える、請求項15に記載の信号インターフェース。
- 前記RF送受信兼用ポートが前記RF受信信号を受信し、実質的に同時に前記RF伝送信号を移す、請求項10〜16のいずれか一項に記載の信号インターフェース。
- 前記送受信兼用ポートに電気的に接続されたアンテナであって、前記RF受信信号を受信し、前記RF伝送信号を伝送するアンテナをさらに備える、請求項10〜17のいずれか一項に記載の信号インターフェース。
- 受信信号と伝送信号とをインターフェースする方法であって、
第1の導波路を介して第1の進行波を伝播し、第2の導波路を介して第2の進行波を伝播することと、
RF伝送信号の実質的な部分を該第2の導波路に結合せず、該第1の導波路を介して該RF伝送信号を送受信兼用ポートに伝播することと、
該送受信兼用ポートから該第1の導波路にRF受信信号を伝播することと、
該第1の導波路および該第2の導波路の長さに沿って連続した態様での該第1の導波路から該第2の導波路への該RF受信信号の結合が起こるように、該第1の導波路および該第2の導波路を互いに近接して配置することと、
該第2の導波路から出力ポートへと該RF受信信号を伝播することと
を包含する、方法。 - 前記RF受信信号を結合することが、前記第1の導波路から前記第2の導波路へと実質的に全ての該RF受信信号を結合することを包含する、請求項19に記載の方法。
- 前記RF受信信号がアンテナから受信され、前記RF伝送信号は、該アンテナによって伝送され、該アンテナは、前記送受信兼用ポートに電気的に接続されている、請求項19または20に記載の方法。
- 前記第1の進行波と前記第2の進行波とが、前記RF受信信号と前記RF伝送信号とのうちの少なくとも一方と実質的に速度整合された電磁場を有する、請求項19〜21のいずれか一項に記載の方法。
- 前記送受信兼用ポートからRF受信信号を伝播することと、前記第1の導波路を介してRF伝送信号を送受信兼用ポートへ伝播することとが、実質的に同時に実行される、請求項19〜22のいずれか一項に記載の方法。
- 光伝送信号を受信する光入力部と、前記第1の導波路のRF入力ポートに接続された電気出力部とを有する光検出器を用いることによって、光伝送信号を前記RF伝送信号へ変換することをさらに包含する、請求項19〜23のいずれか一項に記載の方法。
- RF送受信兼用ポートにおいて前記RF受信信号を受信することと、
RF入力ポートにおいて前記RF伝送信号を受信することと、
光ビームを生成することと、
該RF受信信号を用いて該光ビームを変調し、該変調された光ビームを前記出力ポートへと移すことと、
該RF伝送信号を該RF送受信兼用ポートへと移すことと
をさらに包含する、請求項19〜23のいずれか一項に記載の方法。 - 前記RF送受信兼用ポートにおいてRF受信信号を受信することと、前記RF伝送信号を該RF送受信兼用ポートへと移すこととが、実質的に同時に実行される、請求項25に記載の方法。
- 前記受信されたRF受信信号を前記光ビームの光場に速度整合することをさらに包含する、請求項25または26に記載の方法。
- 光伝送信号を受信する光入力部と、前記第1の導波路のRF入力ポートに接続された電気出力部とを有する光検出器を用いることによって、光データ信号源によって生成された光伝送信号から、前記RF伝送信号を生成することをさらに包含する、請求項25〜27のいずれか一項に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US48874803P | 2003-07-14 | 2003-07-14 | |
PCT/US2004/022498 WO2005008832A2 (en) | 2003-07-14 | 2004-07-13 | Bi-directional signal interface |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008301661A Division JP2009077428A (ja) | 2003-07-14 | 2008-11-26 | 送受信兼用信号インターフェース |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007532021A JP2007532021A (ja) | 2007-11-08 |
JP4478680B2 true JP4478680B2 (ja) | 2010-06-09 |
Family
ID=34079452
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006520285A Expired - Fee Related JP4478680B2 (ja) | 2003-07-14 | 2004-07-13 | 送受信兼用信号インターフェース |
JP2008301661A Pending JP2009077428A (ja) | 2003-07-14 | 2008-11-26 | 送受信兼用信号インターフェース |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008301661A Pending JP2009077428A (ja) | 2003-07-14 | 2008-11-26 | 送受信兼用信号インターフェース |
Country Status (8)
Country | Link |
---|---|
US (3) | US7555219B2 (ja) |
EP (1) | EP1649539B1 (ja) |
JP (2) | JP4478680B2 (ja) |
KR (2) | KR101222726B1 (ja) |
CN (1) | CN1839511B (ja) |
AT (1) | ATE494643T1 (ja) |
DE (1) | DE602004030914D1 (ja) |
WO (1) | WO2005008832A2 (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9209840B2 (en) | 2012-07-30 | 2015-12-08 | Photonic Systems, Inc. | Same-aperture any-frequency simultaneous transmit and receive communication system |
US9935680B2 (en) | 2012-07-30 | 2018-04-03 | Photonic Systems, Inc. | Same-aperture any-frequency simultaneous transmit and receive communication system |
US10158432B2 (en) | 2015-10-22 | 2018-12-18 | Photonic Systems, Inc. | RF signal separation and suppression system and method |
US10374656B2 (en) | 2012-07-30 | 2019-08-06 | Photonic Systems, Inc. | Same-aperture any-frequency simultaneous transmit and receive communication system |
US10623986B2 (en) | 2015-10-22 | 2020-04-14 | Photonic Systems, Inc. | RF signal separation and suppression system and method |
US11539392B2 (en) | 2012-07-30 | 2022-12-27 | Photonic Systems, Inc. | Same-aperture any-frequency simultaneous transmit and receive communication system |
Families Citing this family (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1839511B (zh) | 2003-07-14 | 2012-07-18 | 光子学系统股份有限公司 | 双向信号接口 |
US20050255812A1 (en) * | 2004-05-17 | 2005-11-17 | Samsung Electronics Co., Ltd. | RF front-end apparatus in a TDD wireless communication system |
US20060205442A1 (en) * | 2005-03-10 | 2006-09-14 | Neil Phillips | Bi-directional amplifier with non-interruptible port |
US20100117728A1 (en) * | 2005-03-10 | 2010-05-13 | Robert Ryan Riggsby | Signal Amplifiers Having Communications Paths that Automatically Terminate to a Matched Termination in Response to a Power Interruption and Related Methods |
US7912431B2 (en) * | 2005-03-10 | 2011-03-22 | Commscope, Inc. Of North Carolina | Signal amplifiers having non-interruptible communication paths |
US7809216B2 (en) * | 2007-03-16 | 2010-10-05 | Photonic Systems, Inc. | Bi-directional signal interface and apparatus using same |
JP4656156B2 (ja) * | 2008-01-22 | 2011-03-23 | ソニー株式会社 | 光通信装置 |
US8433163B2 (en) * | 2008-04-21 | 2013-04-30 | Photonic Systems, Inc | Bi-directional signal interface with enhanced isolation |
US8693810B2 (en) | 2008-11-05 | 2014-04-08 | The Trustees Of Princeton University | Optical counter-phase system and method of RF interference cancellation |
US8682170B2 (en) | 2011-05-20 | 2014-03-25 | The Trustees Of Princeton University | System and method for broadband RF interference cancellation |
JP5446552B2 (ja) * | 2009-07-30 | 2014-03-19 | ソニー株式会社 | 無線通信装置、回転構造体、電子機器 |
JP5398553B2 (ja) * | 2010-01-06 | 2014-01-29 | 三菱電機株式会社 | 電波システム用光伝送装置 |
US8755750B2 (en) | 2010-05-22 | 2014-06-17 | Photonic Systems, Inc. | Wide-bandwidth signal canceller |
US8853709B2 (en) | 2011-07-29 | 2014-10-07 | Hrl Laboratories, Llc | III-nitride metal insulator semiconductor field effect transistor |
US8124505B1 (en) | 2010-10-21 | 2012-02-28 | Hrl Laboratories, Llc | Two stage plasma etching method for enhancement mode GaN HFET |
US9335568B1 (en) | 2011-06-02 | 2016-05-10 | Hrl Laboratories, Llc | Electro-optic grating modulator |
US8941118B1 (en) | 2011-07-29 | 2015-01-27 | Hrl Laboratories, Llc | Normally-off III-nitride transistors with high threshold-voltage and low on-resistance |
US9250452B1 (en) * | 2011-10-13 | 2016-02-02 | Hrl Laboratories, Llc | Tunable photonic RF circulator for simultaneous transmit and receive |
US9337332B2 (en) | 2012-04-25 | 2016-05-10 | Hrl Laboratories, Llc | III-Nitride insulating-gate transistors with passivation |
US20140349584A1 (en) * | 2013-05-24 | 2014-11-27 | Thorsten Clevorn | Communication device and method for performing radio communication |
US9699516B2 (en) | 2014-01-21 | 2017-07-04 | Commscope, Inc. Of North Carolina | Signal amplifiers that support MoCA communications at both active and passive output ports |
US9240842B2 (en) | 2014-03-24 | 2016-01-19 | The United States Of America As Represented By The Secretary Of The Air Force | Isolation of RF signals using optical single side band modulation combined with optical filtering |
US10276712B2 (en) | 2014-05-29 | 2019-04-30 | Hrl Laboratories, Llc | III-nitride field-effect transistor with dual gates |
US10090585B2 (en) | 2015-08-23 | 2018-10-02 | The Trustees Of Columbia University In The City Of New York | Circuits and methods for antenna-based self-interference cancellation |
US9812532B1 (en) | 2015-08-28 | 2017-11-07 | Hrl Laboratories, Llc | III-nitride P-channel transistor |
US9780943B2 (en) | 2015-11-13 | 2017-10-03 | Northrop Grumman Systems Corporation | Broadband distributed amplifier based active duplexer |
CN108292678B (zh) | 2015-11-19 | 2021-07-06 | Hrl实验室有限责任公司 | 具有双栅极的iii族氮化物场效应晶体管 |
US9887862B2 (en) * | 2015-12-07 | 2018-02-06 | The Trustees Of Columbia University In The City Of New York | Circuits and methods for performing self-interference cancelation in full-duplex transceivers |
US10581135B2 (en) | 2015-12-07 | 2020-03-03 | The Trustees Of Columbia University In The City Of New York | Circuits and methods for non-reciprocal circulators and transceivers using same |
US9735854B2 (en) * | 2016-01-18 | 2017-08-15 | Qorvo Us, Inc. | Systems for antenna swapping switching and methods of operation thereof |
US9692469B1 (en) | 2016-02-23 | 2017-06-27 | Resonant Sciences, LLC | Interference signal cancellation over a broad frequency range |
US9882654B1 (en) * | 2016-03-17 | 2018-01-30 | Hrl Laboratories, Llc | Jammer-suppressed photonic-enabled RF link |
US9793972B1 (en) | 2016-04-04 | 2017-10-17 | Qorvo Us, Inc. | Multiple-input multiple-output (MIMO) antenna swapping circuit |
CN106059617B (zh) * | 2016-07-15 | 2019-02-01 | 上海捷士太通讯技术有限公司 | 一种集成天线的通用型无线通信模块 |
US11031665B2 (en) | 2016-07-21 | 2021-06-08 | The Trustees Of Columbia University In The City Of New York | Magnetic-free non-reciprocal circuits based on sub-harmonic spatio-temporal conductance modulation |
US9960849B1 (en) | 2016-12-22 | 2018-05-01 | Intel Corporation | Channelization for dispersion limited waveguide communication channels |
US10355771B1 (en) | 2017-05-22 | 2019-07-16 | Resonant Sciences, LLC | RF repeater and mobile unit with cancellation of interference from a repeated signal |
EP3688877B1 (en) | 2017-09-26 | 2023-09-13 | Photonic Systems, Inc. | Single-channel, full-time full-duplex wireless signal transmission system |
US11349569B2 (en) * | 2018-10-26 | 2022-05-31 | Raytheon Company | Methods and apparatus for implementing an optical transceiver using a vapor cell |
WO2020132611A1 (en) * | 2018-12-20 | 2020-06-25 | California Institute Of Technology | Spatial redistributors and methods of redistributing mm-wave signals |
US11307395B2 (en) | 2019-05-23 | 2022-04-19 | Raytheon Company | Methods and apparatus for optical path length equalization in an optical cavity |
US11290191B2 (en) | 2019-06-20 | 2022-03-29 | Raytheon Company | Methods and apparatus for tracking moving objects using symmetric phase change detection |
WO2021003429A1 (en) | 2019-07-03 | 2021-01-07 | Raytheon Company | Optical receiver comprising a rotatable optical resonator, and method for demodulating an optical signal using said receiver |
US11199754B2 (en) | 2019-07-15 | 2021-12-14 | Raytheon Company | Demodulator with optical resonator |
WO2022093728A1 (en) * | 2020-10-31 | 2022-05-05 | Photonic Systems, Inc. | Bi-directional signal interface with suppression of reflected signals |
Family Cites Families (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB848113A (en) * | 1957-08-20 | 1960-09-14 | Gen Electric Co Ltd | Improvements in or relating to electromagnetic wave switching arrangements |
US5010342A (en) * | 1973-05-14 | 1991-04-23 | Jones Jr James R | Radar simulator |
JPS57197934A (en) * | 1981-05-29 | 1982-12-04 | Fujitsu Ten Ltd | Radio transmitter and receiver |
FR2574943B1 (fr) * | 1984-12-18 | 1987-05-22 | Thomson Csf | Systeme analyseur de transitoires |
GB2181007A (en) * | 1985-09-27 | 1987-04-08 | Philips Electronic Associated | Distributed amplifier load arrangements |
JPH0750265B2 (ja) * | 1986-08-20 | 1995-05-31 | 川上 彰二郎 | 広帯域進行波形光変調器 |
US4801901A (en) * | 1987-03-13 | 1989-01-31 | Hittite Microwave Corporation | Non-ferrite non-reciprocal phase shifter and circulator |
CA2011954C (en) * | 1989-03-14 | 1994-02-22 | Hiroshi Hamano | Optical modulator |
US4908820A (en) * | 1989-03-29 | 1990-03-13 | Hittite Microwave Corporation | Non-reciprocal bidirectional duplexer |
US5287212A (en) * | 1989-09-07 | 1994-02-15 | Cox Charles H | Optical link |
US5105166A (en) * | 1989-11-30 | 1992-04-14 | Raytheon Company | Symmetric bi-directional amplifier |
EP0430509A3 (en) * | 1989-11-30 | 1991-11-06 | Raytheon Company | Symmetric bi-directional amplifier |
EP0459571B1 (fr) * | 1990-05-29 | 1995-09-20 | Laboratoires D'electronique Philips | Ligne de transmission en mode à ondes lentes, du type microruban et circuit incluant une telle ligne |
JPH0773247B2 (ja) * | 1991-03-08 | 1995-08-02 | 株式会社エイ・ティ・アール光電波通信研究所 | アンテナ給電用光伝送システム |
US5309532A (en) * | 1991-12-02 | 1994-05-03 | The Regents Of The University Of California | Electro-optic intensity modulator with improved linearity |
US5303079A (en) * | 1992-04-09 | 1994-04-12 | At&T Bell Laboratories | Tunable chirp, lightwave modulator for dispersion compensation |
US6337660B1 (en) * | 1993-09-17 | 2002-01-08 | The United States Of America As Represented By The Secretary Of The Navy | Fiber optic true time-delay array antenna feed system |
US5389782A (en) * | 1994-05-13 | 1995-02-14 | The United States Of America As Represented By The Secretary Of The Navy | Optically powered amplifier used by an electromagnetic field sensor to amplify an electrical signal from an antenna |
JPH098737A (ja) * | 1995-06-23 | 1997-01-10 | Tokin Corp | 受信システム |
US5602387A (en) * | 1995-06-26 | 1997-02-11 | The United States Of America As Represented By The Secretary Of The Air Force | Method of protecting an RF receiver in a hostile electromagnetic environment |
CN100393005C (zh) * | 1996-07-19 | 2008-06-04 | 内克斯特格网络公司 | 同时接收和调制光信号的电信系统 |
DE19649085A1 (de) * | 1996-11-27 | 1998-05-28 | Alsthom Cge Alcatel | Sende-/Empfangseinrichtung und Verfahren zum Übertragen von breitbandigen Signalen sowie Sende-/Empfangseinrichtung zum Empfang von breitbandigen Signalen |
US5977911A (en) * | 1996-12-30 | 1999-11-02 | Raytheon Company | Reactive combiner for active array radar system |
US6295395B1 (en) * | 1997-01-31 | 2001-09-25 | The United States Of America As Represented By The Secretary Of Commerce | True time delay generation utilizing broadband light source with fiber chirp grating array and acousto-optic beam steering and 2-D architectures |
JPH1152313A (ja) * | 1997-08-08 | 1999-02-26 | Mitsubishi Electric Corp | 光変調装置 |
AU9158798A (en) * | 1997-08-18 | 1999-03-08 | Corning O.T.I. S.P.A. | Narrow-band optical modulator with reduced power requirement |
JP3959797B2 (ja) * | 1997-09-17 | 2007-08-15 | 有限会社ケイラボラトリー | 集中定数型サーキュレータ |
US6393177B2 (en) * | 1998-01-20 | 2002-05-21 | United States Of America | True time delay generating system and method |
US6137442A (en) * | 1998-04-01 | 2000-10-24 | The United States Of America As Represented By The Secretary Of The Navy | Chirped fiber grating beamformer for phased array antennas |
US6081232A (en) * | 1998-07-06 | 2000-06-27 | The United States Of America As Represented By The Secretary Of The Army | Communication relay and a space-fed phased array radar, both utilizing improved mach-zehnder interferometer |
US6175672B1 (en) * | 1999-06-18 | 2001-01-16 | Raytheon Company | RF wide bandwidth lossless high performance low noise transmissive link |
JP2001036169A (ja) | 1999-07-23 | 2001-02-09 | Furukawa Electric Co Ltd:The | 双方向励起光増幅器 |
US6330098B1 (en) * | 1999-10-06 | 2001-12-11 | Codeon Corporation | Apparatus for externally modulating two optical channels at the same time |
US6320539B1 (en) * | 2000-06-09 | 2001-11-20 | The United States Of America As Represented By The Secretary Of The Navy | Fiber-optic, wideband array antenna beamformer |
US20020106141A1 (en) * | 2001-02-08 | 2002-08-08 | Codeon Corporation | Low-loss electrode designs for high-speed optical modulators |
US6580843B2 (en) * | 2001-04-05 | 2003-06-17 | Fujitsu Limited | Optical device |
US6891982B2 (en) * | 2001-05-25 | 2005-05-10 | Anritsu Corporation | Optical modulation device having excellent electric characteristics by effectively restricting heat drift |
JP3885528B2 (ja) * | 2001-07-04 | 2007-02-21 | 株式会社日立製作所 | 光変調器 |
JP2003262841A (ja) * | 2002-03-07 | 2003-09-19 | Fujitsu Ltd | 光変調装置及び設計方法 |
US6873750B2 (en) * | 2002-03-13 | 2005-03-29 | Telecommunications Research Laboratories | Electro-optic modulator with resonator |
JP3936256B2 (ja) * | 2002-07-18 | 2007-06-27 | 富士通株式会社 | 光半導体装置 |
JP3957217B2 (ja) * | 2002-12-06 | 2007-08-15 | 富士通株式会社 | 光変調器 |
US7042305B2 (en) * | 2002-12-20 | 2006-05-09 | Com Dev Ltd. | Transmission line termination |
CN1839511B (zh) | 2003-07-14 | 2012-07-18 | 光子学系统股份有限公司 | 双向信号接口 |
US7561803B2 (en) * | 2006-02-14 | 2009-07-14 | Photonic Systems, Inc. | Bi-directional signal interface using photonic coupler |
-
2004
- 2004-07-13 CN CN2004800236254A patent/CN1839511B/zh not_active Expired - Fee Related
- 2004-07-13 JP JP2006520285A patent/JP4478680B2/ja not_active Expired - Fee Related
- 2004-07-13 US US10/710,463 patent/US7555219B2/en active Active
- 2004-07-13 KR KR1020097014602A patent/KR101222726B1/ko active IP Right Grant
- 2004-07-13 DE DE602004030914T patent/DE602004030914D1/de active Active
- 2004-07-13 EP EP04778144A patent/EP1649539B1/en not_active Not-in-force
- 2004-07-13 KR KR1020067000872A patent/KR100966222B1/ko active IP Right Grant
- 2004-07-13 AT AT04778144T patent/ATE494643T1/de not_active IP Right Cessation
- 2004-07-13 WO PCT/US2004/022498 patent/WO2005008832A2/en active Application Filing
-
2008
- 2008-11-26 JP JP2008301661A patent/JP2009077428A/ja active Pending
-
2009
- 2009-05-22 US US12/471,312 patent/US8868006B2/en active Active
- 2009-06-12 US US12/483,962 patent/US7826751B2/en active Active
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9209840B2 (en) | 2012-07-30 | 2015-12-08 | Photonic Systems, Inc. | Same-aperture any-frequency simultaneous transmit and receive communication system |
US9935680B2 (en) | 2012-07-30 | 2018-04-03 | Photonic Systems, Inc. | Same-aperture any-frequency simultaneous transmit and receive communication system |
US10374656B2 (en) | 2012-07-30 | 2019-08-06 | Photonic Systems, Inc. | Same-aperture any-frequency simultaneous transmit and receive communication system |
US10425121B2 (en) | 2012-07-30 | 2019-09-24 | Photonic Systems, Inc. | Same-aperture any-frequency simultaneous transmit and receive communication system |
US10651886B2 (en) | 2012-07-30 | 2020-05-12 | Photonic Systems, Inc. | Same-aperture any-frequency simultaneous transmit and receive communication system |
US10879950B2 (en) | 2012-07-30 | 2020-12-29 | Photonic Systems, Inc. | Same-aperture any-frequency simultaneous transmit and receive communication system |
US11539392B2 (en) | 2012-07-30 | 2022-12-27 | Photonic Systems, Inc. | Same-aperture any-frequency simultaneous transmit and receive communication system |
US10158432B2 (en) | 2015-10-22 | 2018-12-18 | Photonic Systems, Inc. | RF signal separation and suppression system and method |
US10623986B2 (en) | 2015-10-22 | 2020-04-14 | Photonic Systems, Inc. | RF signal separation and suppression system and method |
Also Published As
Publication number | Publication date |
---|---|
ATE494643T1 (de) | 2011-01-15 |
US8868006B2 (en) | 2014-10-21 |
WO2005008832A2 (en) | 2005-01-27 |
US20090274466A1 (en) | 2009-11-05 |
US20050014472A1 (en) | 2005-01-20 |
KR20060037350A (ko) | 2006-05-03 |
CN1839511B (zh) | 2012-07-18 |
EP1649539A2 (en) | 2006-04-26 |
WO2005008832A3 (en) | 2005-03-24 |
US7555219B2 (en) | 2009-06-30 |
KR101222726B1 (ko) | 2013-01-15 |
CN1839511A (zh) | 2006-09-27 |
KR100966222B1 (ko) | 2010-07-01 |
KR20090088456A (ko) | 2009-08-19 |
US7826751B2 (en) | 2010-11-02 |
JP2009077428A (ja) | 2009-04-09 |
US20090247074A1 (en) | 2009-10-01 |
JP2007532021A (ja) | 2007-11-08 |
DE602004030914D1 (de) | 2011-02-17 |
EP1649539B1 (en) | 2011-01-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4478680B2 (ja) | 送受信兼用信号インターフェース | |
US7561803B2 (en) | Bi-directional signal interface using photonic coupler | |
EP2132594B1 (en) | Bi-directional signal interface and apparatus using same | |
JP2009077428A5 (ja) | ||
CN111431622B (zh) | 一种光电融合的连续波雷达泄漏干扰消除装置及方法 | |
US5109449A (en) | Variable optical fiber delay line | |
JP2807651B2 (ja) | 半導体電界吸収型光変調装置 | |
Meyer | Using fiber optics with analog RF signals | |
JPH0354494B2 (ja) | ||
KR100743425B1 (ko) | 시분할복신 무선통신시스템의 고주파 전단 장치 | |
US20220140911A1 (en) | Bi-directional signal interface with suppression of reflected signals | |
Stephens et al. | RF Fiber Optic Links for Avionics Applications | |
Iwashita et al. | 4Gbit/s CPFSK transmission experiment through 155km single-mode fiber | |
KR100759271B1 (ko) | RoF 통신 시스템에 사용되는 광 송수신기 | |
KR100906776B1 (ko) | 스위치 lna가 구비된 iss 필터 모듈 | |
Johnson et al. | Components and applications for high-speed optical analog links | |
JPH10186189A (ja) | 受信部を有する送信システム | |
CN114879387A (zh) | 一种铌酸锂强度调制器及光收发模块 | |
US7589887B2 (en) | Low loss fiber optic link using an optical amplifier | |
CN114189287A (zh) | 微波光子环形器及提高微波通信信号收发端隔离度的方法 | |
JPH02281205A (ja) | 可変光ファイバ遅延ライン | |
CN116074175A (zh) | 一种有源式反向散射2ask调制装置 | |
Bruno et al. | Rf Fiber Optic Links For Spacecraft And Aircraft Applications | |
JPH10190587A (ja) | 送受信システム | |
Gosling | Radio frequency engineering: opportunity and challenge |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20080827 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20081126 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20081219 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20090310 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20090317 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20090513 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20090520 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20090619 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20100215 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20100315 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 4478680 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130319 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140319 Year of fee payment: 4 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |