| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | PROCESSING OF SIGNALS WITH REGENERATIVE OPTO-ELECTRONIC CIRCUITS | PCT/US2005012993 | 2005-04-15 | WO2005101286A3 | 2005-12-22 | MALEKI LUTFOLLAH; ELIYAHU DANNY |
| Opto-electronic regenerative circuits (100) and devices (110-190) for processing RF or microwave signals based on opto-electronic oscillator designs. | ||||||
| 62 | CONTINUOUSLY TUNABLE COUPLED OPTO-ELECTRONIC OSCILLATORS HAVING BALANCED OPTO-ELECTRONIC FILTERS | PCT/US2004040301 | 2004-12-01 | WO2005055412A3 | 2005-10-13 | ILCHENKO VLADIMIR; ELIYAHU DANNY |
| Devices and techniques for achieving continuous tuning of coupled opto-electronic oscillators with signal filtering in RF or microwave frequencies by optical filtering via two optical resonators in two separate optical paths. | ||||||
| 63 | A RECEIVER FOR A PHASED ARRAY ANTENNA | EP15710473.8 | 2015-03-12 | EP3269053B1 | 2018-12-12 | PULERI, Marzio; D'ERRICO, Antonio; BOGONI, Antonella; GHELFI, Paolo |
| A receiver (1) for a phased array antenna comprises a laser light source (2) arranged to provide an optical spectrum comprising a first spectral component having a first wavelength and a second spectral component having a second wavelength. The first wavelength is spaced from the second wavelength. A wavelength separator (4) is configured to separate the first spectral component from the second spectral component, such that the first spectral component is directed onto a first path (A) and the second spectral component is directed onto a second path (B). A first delay unit (16) is configured to add a controllable time delay to the first spectral component on the first path. A second delay unit (42) is configured to add the time delay to the second spectral component on the second path. A modulator (14) is configured to modulate the first spectral component on the first path with a received RF signal from the phased array antenna. A heterodyning device (50) is configured to heterodyne the resulting first and second spectral components. | ||||||
| 64 | FEED SIGNAL GENERATION FOR A PHASED ARRAY ANTENNA | EP14734483.2 | 2014-07-01 | EP3164953B1 | 2018-12-05 | PULERI, Marzio; D'ERRICO, Antonio; MOLONY, Anna |
| A feed signal generator (10) for a phased array antenna, comprising: an input (12) to receive an optical spectrum having first and second phase-locked spectral components, respectively having first and second optical frequencies; wavelength selective separator apparatus (14) to separate the optical spectrum into a first optical signal being the first spectral component and a second optical signal being the second spectral component; an optical time delay element (16) to apply a time delay to the first optical signal to form a delayed optical signal; a heterodyning device (20) to heterodyne the delayed optical signal and the second optical signal to generate a feed signal (22) having a power proportional to a product of the amplitudes of the second and delayed optical signals and a phase proportional to the time delay; and optical amplitude control apparatus (18) to set an amplitude of the delayed optical signal such that the product of said amplitudes causes the power of the feed signal to have a preselected value. | ||||||
| 65 | Method and apparatus for synthesizing ultra-wide bandwidth waveforms | EP11183170.7 | 2011-09-28 | EP2461497B1 | 2018-10-24 | Bulot, Jean-Paul; J.Klotz, Matthew |
| In accordance with various aspects of the disclosure, a method and apparatus is disclosed for increasing waveform bandwidth of a radio frequency waveform during optical double sideband suppressed carrier modulation. An optical modulator is configured to operate in double sideband, suppressed carrier modulation (DSB-SC) mode producing multiple optical sidebands and optical sideband harmonics. Proper selection of the appropriate optical harmonic via optical filter enables the synthesis of ultra-wideband single-sideband, suppressed carrier (SSB-SC) optical waveforms while simultaneously simplifying the radio frequency (RF) circuitry that generates the radio frequency waveform. | ||||||
| 66 | DISPOSITIF PHOTONIQUE DE BRASSAGE ET DE CONVERSION FREQUENTIELLE DE SIGNAUX A RADIOFREQUENCE ET CHARGE UTILE DE TELECOMMUNICATIONS SPATIOPORTEE COMPRENANT UN TEL DISPOSITIF | EP16195997.8 | 2016-10-27 | EP3166233B1 | 2018-08-01 | AVELINE, Muriel; BENAZET, Benoit; SOTOM, Michel |
| 67 | PHASED-ARRAY RADIO FREQUENCY RECEIVER | EP15815384 | 2015-07-03 | EP3164677A4 | 2018-06-06 | SCHUETZ CHRIS; MURAKOWSKI JANUSZ; SCHNEIDER GARRETT; SHI SHOUYUAN; PRATHER DENNIS |
| A method of RF signal processing comprises receiving an incoming RF signal at each of a plurality of antenna elements that are arranged in a first pattern. The received RF signals from each of the plurality of antenna elements are modulated onto an optical carrier to generate a plurality of modulated signals that each have at least one sideband. The modulated signals are directed along a corresponding plurality of optical channels with outputs arranged in a second pattern corresponding to the first pattern. A composite optical signal is formed using light emanating from the outputs of the plurality of optical channels. Non-spatial information contained in at least one of the received RF signals is extracted from the composite signal. | ||||||
| 68 | MICROWAVE PHOTONIC NOTCH FILTER | EP16806450.9 | 2016-06-10 | EP3308217A1 | 2018-04-18 | MARPAUNG, David Albert Immanuel; PAGANI, Mattia; SHAHNIA, Shayan |
| A microwave photonic notch filter comprising: a modulator to modulate an optical signal with an electrical signal to generate a first sideband and a second sideband; a configurable optical processor to generate a modified optical signal by adjusting the power of the sidebands to achieve a power difference between first sideband and second sideband and by producing an antiphase relationship between light within two sidebands corresponding to the selected frequency band; an optical resonance to adjust the power of the first sideband of the modified optical signal corresponding to the selected frequency band by a resonance power adjustment to generate a resonance output signal; an optical-to-electrical converter to generate a copy of the electrical signal with suppressed frequency components within the selected frequency band; and a control unit to re-configure the configurable optical processor to adjust the power difference between two sidebands towards the resonance power adjustment. | ||||||
| 69 | COMPOSANT OPTOELECTRONIQUE POUR GENERER ET RAYONNER UN SIGNAL HYPERFREQUENCE | EP15808571.2 | 2015-12-11 | EP3235149A1 | 2017-10-25 | VAN DIJK, Frédéric |
| The invention relates to an optoelectronic component (30) for generating and radiating an electromagnetic signal (S) having a frequency (F) comprised between 30 GHz and 10 THz, i.e. what is referred to as a hyperfrequency, comprising: a planar guide (Gp) configured to confine and to allow to freely propagate in an XY plane first and second optical waves (O1, O2) having an optical frequency difference, denoted the heterodyne beat, equal to said hyperfrequency (F); a system (Si) for injecting said optical waves (O1, O2) into said planar guide (Gp); and a photo-mixer (PM) coupled to said planar guide (Gp) so as to generate, from the first optical wave (O1) and the second optical wave (O2), a signal (S) having said hyperfrequency (F), said photo-mixer (PM) having an elongate shape having, along a Y-axis, a large dimension (L) larger than or equal to the half-wavelength (λ F) of said signal (S), said injecting system (Si) being configured so that said optical waves overlap in said planar guide and couple to the photo-mixer (PM) over a length along the Y-axis at least equal to the half-wavelength (λ F) of said signal (S), the photo-mixer thus being able to radiate said signal (S). | ||||||
| 70 | HIGH PERFORMANCE COMPACT RF RECEIVER FOR SPACE FLIGHT APPLICATIONS | EP14861339 | 2014-10-23 | EP3069411A4 | 2017-06-21 | KARRAS THOMAS W; ROBERTSON STEPHEN V; SROGA JEFFREY T; PAOLELLA ARTHUR |
| 71 | DISPOSITIF PHOTONIQUE DE BRASSAGE ET DE CONVERSION FREQUENTIELLE DE SIGNAUX A RADIOFREQUENCE ET CHARGE UTILE DE TELECOMMUNICATIONS SPATIOPORTEE COMPRENANT UN TEL DISPOSITIF | EP16195997.8 | 2016-10-27 | EP3166233A1 | 2017-05-10 | AVELINE, Muriel; BENAZET, Benoit; SOTOM, Michel |
Dispositif photonique de brassage et de conversion fréquentielle de signaux à radiofréquence comprenant : des convertisseurs électronique/optique (CEO1 - CEO12), pour transférer des signaux d'entrée à radiofréquence sur des porteuses optiques ; des combineurs optiques (MUXO1 - MUX03) pour regrouper dans un même chemin optique (CTO1 - CT03) plusieurs signaux optiques générés par les convertisseurs électronique/ optique ; des modulateurs électro-optiques (MEO1 - ME03) pour mélanger les signaux optiques se propageant dans un même chemin optique avec une porteuse radiofréquence respective ; des séparateurs optiques (DMXO1 - DMX03) pour séparer les signaux optiques en sortie des modulateurs ; des combineurs optiques (CBO1 - CB04 ; MUXOS1 - MUXOS4) pour regrouper des signaux optiques issus de chemins optiques différents ; et des convertisseurs optique/électronique (COE1 - COE4), associés à ces combineurs optiques. Charges utiles de télécommunications spatioportée comprenant un tel dispositif photonique.
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| 72 | PHOTONIC-ASSISTED RF SPECTRUM SCANNER FOR ULTRA-WIDE BAND RECEIVERS | EP15736315.1 | 2015-03-06 | EP3114531A2 | 2017-01-11 | ALBERTONI, Alessandro; TAFUTO, Antonio; BARTOCCI, Marco; GEMMA, Maurizio; MAZZOLI, Raffaella; ONORI, Daniel; LAGHEZZA, Francesco; GHELFI, Paolo; PINNA, Sergio; SCOTTI, Filippo; SERAFINO, Giovanni; BOGONI, Antonella |
| Disclosed herein is a photonic-assisted radio frequency spectrum scanning device for use in a receiver (100), including: a first optical waveguide arm (110) comprising, in cascade, an input end, a first electro-optical modulator (111), a tunable optical filter (112) and an output end, wherein said first electro-optical modulator (111) is designed to be connected to an antenna to receive therefrom an incoming radio frequency signal; a second optical waveguide arm (120) comprising, in cascade, an input end, a second electro-optical modulator (121), an optical delay line (122) and an output end; a mode-locked laser (101) connected, through an optical splitter (102), to the input ends of the first and second optical waveguide arms (110,120) to supply the latter with optical pulses; an optical hybrid coupler (105) connected to the output ends of the first and second optical waveguide arms (110,120) and operable to combine optical signals received from the latter to produce corresponding output optical signals; and photodetection means (131,132) connected to the optical hybrid coupler (105) to receive the output optical signals and configured to convert the latter into corresponding baseband electrical analog signals. The first electro- optical modulator (111) is configured to modulate the optical pulses supplied by the mode-locked laser (101) by means of the incoming radio frequency signal so as to carry out an optical sampling of the latter, whereby a modulated optical signal is produced, which is indicative of said optical sampling. The tunable optical filter (112) is operable to filter the modulated optical signal so as to select a portion of spectrum of the latter. The second electro-optical modulator (121) is operable to decimate the optical pulses supplied by the mode-locked laser (101). The optical delay line (122) is operable to delay the decimated optical pulses. | ||||||
| 73 | ACTIVE OPTICAL ANTENNA, MICROWAVE EMISSION SYSTEM AND METHOD FOR SENDING INFORMATION | EP12765745.0 | 2012-03-13 | EP2660985B1 | 2015-05-06 | DONG, Limin; LI, Kun; CAI, Jun |
| 74 | RADIO FREQUENCY SIGNAL TRANSCEIVER, COHERENT RADAR RECEIVER AND METHOD OF PROCESSING RADIO FREQUENCY SIGNALS | EP12718648.4 | 2012-04-30 | EP2845332A1 | 2015-03-11 | GHELFI, Paolo; BOGONI, Antonella |
| An RF signal transceiver comprising a mode-locked laser to output an optical signal having a plurality of phase-locked modes, an optical splitter to power split the optical signal into a transmitter optical signal and a receiver optical signal; a transmitter apparatus to receive the transmitter optical signal and comprising an optical filter to select two of the modes, an optical modulator to modulate a part of the transmitter optical signal to form at least one phase modulated optical signal, and a photodetector to heterodyne the phase modulated optical signal with one of the modes without a corresponding phase modulation to form an RF signal for transmission; and a receiver apparatus arranged to receive an RF signal and the receiver optical signal and comprising an optical modulator to modulate the receiver optical signal with the received RF signal; and an optical to electrical signal conversion apparatus to convert the modulated receiver optical signal into a corresponding electrical signal. | ||||||
| 75 | Integrated photonic frequency converter and mixer | EP14175188.3 | 2014-07-01 | EP2827515A1 | 2015-01-21 | Shi, Yongqiang |
A system and methods for electro-optical modulation are presented. A first optical signal and a second optical signal are optically coupled to produce a local oscillator signal propagated in two signal paths. The local oscillator signal in the first signal path and the second signal path is electro-optically phase modulated with a radio frequency electrical signal to produce a first phase modulated optical signal and a second phase modulated optical signal respectively. The first phase modulated optical signal and the second phase modulated optical signal are optically coupled to produce an intensity modulated signal comprising an RF frequency of the radio frequency electrical signal frequency mixed by a local oscillator frequency of the local oscillator signal.
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| 76 | RF COMMUNICATIONS DEVICE INCLUDING AN OPTICAL LINK AND RELATED DEVICES AND METHODS | EP12743832.3 | 2012-07-24 | EP2737644A1 | 2014-06-04 | DESALVO, Richard; MIDDLETON, Charles; SCHEUTER, Peter S.; DEIBNER, Gus W. |
| A communications device includes a transmitter device including an optical source configured to generate an optical carrier signal, and a modulator coupled to the optical source and configured to modulate the optical carrier signal with an input signal having a first frequency, an optical waveguide coupled to the transmitter device, and a receiver device coupled to the optical waveguide. The receiver device includes an optical splitter, a first waveguide path coupled to the optical splitter and configured to filter a sideband from the modulated optical carrier signal, a second waveguide path coupled to the optical splitter and configured to generate a selected sideband from selectable sidebands based upon the modulated optical carrier signal, and an optical-to-electrical converter coupled to the first and second waveguide paths and configured to generate an output signal including a replica of the input signal at a second frequency based upon the selected sideband. | ||||||
| 77 | FOURTH HARMONIC GENERATING SYSTEM USING OPTICAL CARRIER SUPPRESSED DOUBLE SIDEBAND MODULATOR | EP06782483.9 | 2006-08-08 | EP1914910B1 | 2013-11-20 | KAWANISHI, Tetsuya c/o Intell.Prop. Management Group; IZUTSU, Masayuki c/o Intell.Prop. Management Group; SAKAMOTO, Takahide c/o Intell.Prop. Management Group; TSUCHIYA, Masahiro c/o Intell.Prop. Management Group |
| The present invention is to provide an optical modulating system for generating a signal of a frequency (f 0 +2f m ) and a signal of a frequency (f 0 -2f m ) and suppressing a signal of a frequency (f 0 ) by a DSB-SC modulator. A fourth harmonic generating system for solving the above problem comprises a first DSB-SC modulator (2) a second DSB-SC modulator (3) and a signal control section (5) for controlling a modulating signal from a signal source (4) for generating modulating signals applied to the first and second DSB-SC modulators (2,3) so that a lower side-band signal (f 0 ) generated by modulating the upper side-band signal of the DSB-SC modulator (2) by the DSB-SC modulator (3) and an upper side-band signal (f 0 ) generated by modulating the lower side-band signal of the DSB-SC modulator (2) by the DSB-SC modulator (3) cancel each other. | ||||||
| 78 | SYSTEMS AND METHODS FOR PHOTONICALLY ASSISTED RF FILTERING | EP08746794 | 2008-04-24 | EP2151073A4 | 2012-08-29 | WOODWARD TED K; BANWELL THOMAS; MENENDEZ RONALD C |
| 79 | METHOD FOR GENERATING MODULATED SIGNALS AND TRANSMISSION DEVICE THEREOF | EP10816662 | 2010-08-27 | EP2461531A4 | 2012-08-08 | DONG LIMIN |
| 80 | Radio frequency system for optical heterodyning | EP10290368.9 | 2010-07-02 | EP2403165A1 | 2012-01-04 | Maier, Simone; Haslach, Christoph; Templ, Wolfgang; Kuebart, Wolfgang |
Radio frequency system (312) for optical heterodyning, the radio frequency system comprising up to two modulators, a light source, a splitter, a combiner, an optoelectronic device, and an analogue-digital-converter. The radio frequency system is adapted for performing optical heterodyning with an intermediate frequency signal.
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