BE740180A - - Google Patents
Info
- Publication number
- BE740180A BE740180A BE740180DA BE740180A BE 740180 A BE740180 A BE 740180A BE 740180D A BE740180D A BE 740180DA BE 740180 A BE740180 A BE 740180A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/22—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation in accordance with variation of frequency of radiated wave
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
- H01Q5/42—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements using two or more imbricated arrays
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6814913.A NL160438C (nl) | 1968-10-18 | 1968-10-18 | Microgolfantenne. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE740180A true BE740180A (nl) | 1970-03-16 |
Family
ID=19804952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE740180D BE740180A (nl) | 1968-10-18 | 1969-10-13 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE740180A (nl) |
| FR (1) | FR2021022B1 (nl) |
| GB (1) | GB1282320A (nl) |
| NL (1) | NL160438C (nl) |
| SE (1) | SE350658B (nl) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4197541A (en) * | 1977-12-19 | 1980-04-08 | International Telephone And Telegraph Corporation | Polarization agile planar array |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1123310A (fr) * | 1955-01-21 | 1956-09-20 | Thomson Houston Comp Francaise | Dispositif d'aiguillage sélectif pour guide d'ondes électromagnétiques |
| FR1218633A (fr) * | 1958-12-19 | 1960-05-11 | Csf | Guide à fentes rayonnant un faisceau de forme imposée |
| US3276026A (en) * | 1962-05-10 | 1966-09-27 | Lab For Electronics Inc | Doppler array with plural slotted waveguides and feed switching |
| US3243818A (en) * | 1962-08-22 | 1966-03-29 | Hughes Aircraft Co | Dual band slot antenna having common waveguide with differing slots, each individualto its own band |
-
1968
- 1968-10-18 NL NL6814913.A patent/NL160438C/nl not_active IP Right Cessation
-
1969
- 1969-10-13 BE BE740180D patent/BE740180A/xx unknown
- 1969-10-13 GB GB50222/69A patent/GB1282320A/en not_active Expired
- 1969-10-17 FR FR696935699A patent/FR2021022B1/fr not_active Expired
- 1969-10-17 SE SE14284/69A patent/SE350658B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2021022A1 (nl) | 1970-07-17 |
| NL6814913A (nl) | 1970-04-21 |
| GB1282320A (en) | 1972-07-19 |
| NL160438C (nl) | 1979-10-15 |
| SE350658B (nl) | 1972-10-30 |
| NL160438B (nl) | 1979-05-15 |
| DE1952053B2 (de) | 1976-12-09 |
| FR2021022B1 (nl) | 1973-07-13 |
| DE1952053A1 (de) | 1970-10-15 |