Antenna array
Abstract
An antenna array for receiving dual polarized electromagnetic waves, comprised of a first thin-film printed circuit rectenna (1) having a plurality of linear half-wavelength dipole antennae (5A) oriented in a first direction for receiving a first component of the dual polarized waves, and a second thin-film printed circuit rectenna (2) parallel to the first rectenna, having a plurality of linear half-wavelength dipole antennae (5B) oriented in a second direction for receiving the second orthogonal component of the electromagnetic waves. A reflector screen (4) is disposed parallel and behind the second rectenna, for reflecting incident electromagnetic waves transmitted through the first and second rectennae back to the first and second rectennae for reception thereby. The dipole antennae of the first rectenna are disposed in a predetermined pattern in relation to the second rectenna dipole antennae, the first and second rectennae are separated by one of either substantially zero distance or by a multiple half-wavelength distance, and the second rectenna and reflector screen are separated by a predetermined distance to effect substantial cancellation of transmission line shielding effects and mutual coupling, resulting in high efficiency signal reception.

Term
Term ended
Projected expiry passed 23 November 2008, 17.8 years ago.
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- Filed
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- Projected expiry
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1 sheet
Sheet 1
Every citation, both ways
| Document | Relation | Office | Category | Cited during |
|---|---|---|---|---|
| EP0089084B1 | Cites | European Patent Office (EPO) | Y | Search report |
| US3434678A | Cites | United States of America | AD | Search report |
| US3681769A | Cites | United States of America | AD | Search report |
| US4079268A | Cites | United States of America | YD | Search report |
9 members in 5 offices
Priority claims4
| Document | Office | Kind | Date |
|---|---|---|---|
| 124159 | United States of America | – | |
| 12415987 | United States of America | A | |
| 124159 | – | – | – |
| US19870124159 | – | – | – |
Members9
| Document | Office | Kind | |
|---|---|---|---|
| EP0325034A2 | European Patent Office (EPO) | A2 | |
| EP0325034A3This record | European Patent Office (EPO) | A3 | |
| IL88013A0 | Israel | A0 | |
| JPH01202127A | Japan | A | |
| US4943811A | United States of America | A | |
| CA1309769C | Canada | C | |
| US2010251002A1 | United States of America | A1 | |
| US8060792B2 | United States of America | B2 | |
| US8631283B1 | United States of America | B1 |
12 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Application refused18R | 18R | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION HAS BEEN REFUSEDSTAA | STAA | |
| Party data changed (applicant data changed or rights of an application transferred)RAP1 | RAP1 | |
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | |
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | |
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | |
| First examination report despatched17Q | 17Q | |
| Request for examination filed17P | 17P | |
| Designated contracting statesAK | AK | |
| Designated contracting statesAK | AK | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI |
Numbers
- Publication
- 0325034
- Publication, DOCDB
- 0325034
- Publication, EPODOC
- EP0325034
- Application
- 88311092
- Application, DOCDB
- 88311092
- Application, EPODOC
- EP19880311092
Titles3
- English
- ANTENNA ARRAY
- German
- Antennenelementgruppe
- French
- Antenne réseau
Classification
- CPC, 7
- H02J50/27
- H02J50/402
- H01Q1/248
- H01Q21/062
- H01Q25/001
- H02J50/20
- H02J17/00
- IPC, 4
- H01Q1 24
- H01Q21 06
- H01Q25 00
- H02J17 00
Designated states5
- Contracting states, 5
- Germany
- France
- United Kingdom
- Italy
- Netherlands (Kingdom of the)