EP1742081A3
Digital beamforming for an electronically scanned radar system
Abstract
Digital beamfonning is provided for use with electronically scanned radar. In an aspect, the present invention provides enhanced sensitivity, wide angle or field of view (FOV) coverage with narrow beams, minimized number of receivers, reduced sidelobes, eliminated grating lobes and beam compensation for target motion. In an aspect, the present invention employs a uniform overlapped subarray feed network (420), a time multiplexed switch matrix (424), and a restructured digital signal processor (430). Antenna channels share a receiver (406), rather than maintain a dedicated receiver for each antenna element, as in conventional systems. In an aspect, Doppler/frequency filtering (432) is performed on each antenna element or subarray output prior to digital beamforming (436). Further, Doppler compensation (434) is employed following Doppler/frequency filtering (432), followed by digital beamforming (436).
Term
Term ended
Projected expiry passed 14 June 2026, 0.3 years ago.
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1 sheet
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Every citation, both ways
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| WO0072462A2 | Cites | World Intellectual Property Organization (WIPO) | Y | Search report | 2-4,6,9-13,15 |
| WO03043125A1 | Cites | World Intellectual Property Organization (WIPO) | A | Search report | 1,10 |
| DE10261027A1 | Cites | Germany | Y | Search report | 7,16 |
| EP1321776A1 | Cites | European Patent Office (EPO) | Y | Search report | 7,16 |
| EP1431773A2 | Cites | European Patent Office (EPO) | Y | Search report | 7,16 |
| EP1522869A1 | Cites | European Patent Office (EPO) | Y | Search report | 7,16 |
| JP2000258524A | Cites | Japan | Y | Search report | 7,16 |
| WO2004021512A1 | Cites | World Intellectual Property Organization (WIPO) | Y | Search report | 5,14,17-20 |
| US2005195103A1 | Cites | United States of America | PY | Search report | 2-4,9-13 |
| US3500407A | Cites | United States of America | A | Search report | 1,10 |
| US4549184A | Cites | United States of America | XY | Search report | 1,8 |
| US6067048A | Cites | United States of America | XY | Search report | 17-20 |
5 members in 2 offices; this record represents the family
Members5
| Document | Office | Kind | |
|---|---|---|---|
| US2007001897A1 | United States of America | A1 | |
| EP1742081A2 | European Patent Office (EPO) | A2 | |
| EP1742081A3This record | European Patent Office (EPO) | A3 | |
| US7474262B2 | United States of America | B2 | |
| EP1742081B1 | European Patent Office (EPO) | B1 |
80 legal events, as 9 offices reported them to INPADOC
Over the term
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| Expiry of rightR071 | R071 | DE | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Change of applicant/patenteeR081 | R081 | DE | |
| Opt-out of the competence of the unified patent court (upc) registeredP01 | P01 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Gb: european patent ceased through non-payment of renewal feeCeasedGBPC | GBPC | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)REGISTERED BETWEEN 20190124 AND 20190130732E | 732E | GB | |
| Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)REGISTERED BETWEEN 20190117 AND 20190123732E | 732E | GB | |
| Change of applicant/patenteeR081 | R081 | DE | |
| Fee paymentPLFP | PLFP | FR | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Fee paymentPLFP | PLFP | FR | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Fee paymentPLFP | PLFP | FR | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Patent lapsedLapsedMM4A | MM4A | IE | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Patent ceasedCeasedPL | PL | CH | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
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| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA | STAA | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| No opposition filed against granted patent, or epo opposition proceedings concluded without decisionGrantedR097 | R097 | DE | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
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| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
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| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Invalidated european patentMG4D | MG4D | LT | |
| Deletion acc. to par. 5 (withdrawal of the translation of the ep patent)MK05 | MK05 | AT | |
| Discontinued in the netherlands as no translation has been filedVDEP | VDEP | NL | |
| Dpma publication of mentioned ep patent grantGrantedR096 | R096 | DE | |
| European patents granted designating irelandGrantedFG4D | FG4D | IE | |
| European patent takes effect as a national patent in ch/liEP | EP | CH | |
| Reference to at number (ep patent validated in austria)REF | REF | AT | |
| Designated contracting statesAK | AK | EP | |
| European patent grantedGrantedFG4D | FG4D | GB | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
| Grant fee paidORIGINAL CODE: EPIDOSNIGR3GRAS | GRAS | EP | |
| Intention to grant announcedINTG | INTG | EP | |
| Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOSNIGR1GRAP | GRAP | EP | |
| First examination report despatched17Q | 17Q | EP | |
| Designation fees paidAKX | AKX | EP | |
| Request for examination filed17P | 17P | EP | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAX | AX | EP | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAX | AX | EP | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI | EP |
Numbers
- Publication
- 1742081
- Application
- 60762234
Titles3
- German
- Digitale Strahlformung für ein Radarsystem mit elektronischer Strahlschwenkung
- English
- Digital beamforming for an electronically scanned radar system
- French
- Formation de faisceau numérique pour un système de radar numérisé électronique
Classification
- CPC, 13
- G01S13/52
- G01S7/288
- G01S13/931
- G01S2013/0245
- H01Q21/0006
- H04B7/01
- G01S2013/9314
- G01S2013/9325
- G01S2013/9319
- G01S2013/93185
- G01S7/358
- G01S7/356
- G01S7/352
- IPC, 8
- G01S7 288
- G01S7 35
- G01S13 52
- H04B7 08
- G01S13 93
- H01Q21 00
- G01S13 02
- G01S13 931
Designated states36
- Contracting states, 31
- Austria
- Belgium
- Bulgaria
- Switzerland
- Cyprus
- Czechia
- Germany
- Denmark
- Estonia
- Spain
- Finland
- France
- United Kingdom
- Greece
- Hungary
- Ireland
- Iceland
- Italy
- Liechtenstein
- Lithuania
- Luxembourg
- Latvia
- Monaco
- Netherlands (Kingdom of the)
and 7 moreShow fewer
- Poland
- Portugal
- Romania
- Sweden
- Slovenia
- Slovakia
- Türkiye
- Extension states, 5
- Albania
- Bosnia and Herzegovina
- Croatia
- North Macedonia
- Serbia