GB690915A - Improvements in or relating to rotatable aerial systems for use in radar apparatus - Google Patents
Improvements in or relating to rotatable aerial systems for use in radar apparatusInfo
- Publication number
- GB690915A GB690915A GB3385/52A GB338552A GB690915A GB 690915 A GB690915 A GB 690915A GB 3385/52 A GB3385/52 A GB 3385/52A GB 338552 A GB338552 A GB 338552A GB 690915 A GB690915 A GB 690915A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aerials
- rotatable
- relating
- feb
- radar apparatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
- H01Q19/13—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination
- H01Q19/132—Horn reflector antennas; Off-set feeding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
Landscapes
- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL304752X | 1951-02-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB690915A true GB690915A (en) | 1953-04-29 |
Family
ID=19783448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3385/52A Expired GB690915A (en) | 1951-02-12 | 1952-02-08 | Improvements in or relating to rotatable aerial systems for use in radar apparatus |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE509143A (fr) |
| CH (1) | CH304752A (fr) |
| DE (1) | DE943776C (fr) |
| FR (1) | FR1050730A (fr) |
| GB (1) | GB690915A (fr) |
| NL (2) | NL82652C (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1291750A (fr) * | 1961-03-17 | 1962-04-27 | Csf | Antenne plate pour radar à impulsion unique |
-
0
- BE BE509143D patent/BE509143A/xx unknown
- NL NL6704147.A patent/NL159215B/xx unknown
- NL NL82652D patent/NL82652C/xx active
-
1952
- 1952-02-08 GB GB3385/52A patent/GB690915A/en not_active Expired
- 1952-02-09 DE DEN5072A patent/DE943776C/de not_active Expired
- 1952-02-11 CH CH304752D patent/CH304752A/de unknown
- 1952-02-11 FR FR1050730D patent/FR1050730A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL159215B (nl) | |
| NL82652C (fr) | |
| FR1050730A (fr) | 1954-01-11 |
| DE943776C (de) | 1956-06-01 |
| BE509143A (fr) | |
| CH304752A (de) | 1955-01-31 |
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