NL213688A - - Google Patents
Info
- Publication number
- NL213688A NL213688A NL213688DA NL213688A NL 213688 A NL213688 A NL 213688A NL 213688D A NL213688D A NL 213688DA NL 213688 A NL213688 A NL 213688A
- Authority
- NL
- Netherlands
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/66—Radar-tracking systems; Analogous systems
- G01S13/68—Radar-tracking systems; Analogous systems for angle tracking only
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- 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
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/002—Antennas or antenna systems providing at least two radiating patterns providing at least two patterns of different beamwidth; Variable beamwidth antennas
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL213688 | 1957-01-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL213688A true NL213688A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=19872037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL213688D NL213688A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1957-01-12 |
Country Status (3)
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE526846A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1953-02-27 | |||
| NL174216C (nl) * | 1954-02-26 | Procter & Gamble | Werkwijze voor het vervaardigen van een koffieprodukt. | |
| DE1087187B (de) | 1956-08-07 | 1960-08-18 | Hollandse Signaalapparaten Bv | Radarantenne mit zwei nicht gleichzeitig wirksamen Strahlern |
-
0
- NL NL213688D patent/NL213688A/xx unknown
-
1958
- 1958-01-10 GB GB1010/58A patent/GB831766A/en not_active Expired
- 1958-01-13 DE DEN14556A patent/DE1216389B/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE1216389C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1966-12-08 |
| DE1216389B (de) | 1966-05-12 |
| GB831766A (en) | 1960-03-30 |