NL129841C - - Google Patents
Info
- Publication number
- NL129841C NL129841C NL129841DA NL129841C NL 129841 C NL129841 C NL 129841C NL 129841D A NL129841D A NL 129841DA NL 129841 C NL129841 C NL 129841C
- Authority
- NL
- Netherlands
Links
Classifications
-
- 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
- H01Q3/12—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
-
- 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
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/42—Simultaneous measurement of distance and other co-ordinates
- G01S13/422—Simultaneous measurement of distance and other co-ordinates sequential lobing, e.g. conical scan
-
- 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
- H01Q3/12—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
- H01Q3/16—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying relative position of primary active element and a reflecting device
- H01Q3/18—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying relative position of primary active element and a reflecting device wherein the primary active element is movable and the reflecting device is fixed
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Aerials With Secondary Devices (AREA)
- Waveguide Aerials (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR788208A FR1229791A (fr) | 1959-03-03 | 1959-03-03 | Antenne à balayage conique rapide |
Publications (1)
Publication Number | Publication Date |
---|---|
NL129841C true NL129841C (es) |
Family
ID=8711959
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL248958D NL248958A (es) | 1959-03-03 | ||
NL129841D NL129841C (es) | 1959-03-03 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL248958D NL248958A (es) | 1959-03-03 |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE588199A (es) |
DE (1) | DE1200390B (es) |
FR (1) | FR1229791A (es) |
NL (2) | NL129841C (es) |
SE (1) | SE303308B (es) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2484822A (en) * | 1944-04-24 | 1949-10-18 | Sperry Corp | Switching apparatus for ultra high frequencies |
US2720589A (en) * | 1951-07-27 | 1955-10-11 | Sperry Rand Corp | Rapid scanning radar antenna |
US2870440A (en) * | 1954-05-13 | 1959-01-20 | Sanders Associates Inc | Conical scanning antenna systems as used in radar |
GB830230A (en) * | 1956-07-25 | 1960-03-09 | Collins Radio Co | Improvements in or relating to radiometric sextants |
-
0
- NL NL248958D patent/NL248958A/xx unknown
- NL NL129841D patent/NL129841C/xx active
-
1959
- 1959-03-03 FR FR788208A patent/FR1229791A/fr not_active Expired
-
1960
- 1960-03-02 SE SE212460A patent/SE303308B/xx unknown
- 1960-03-02 DE DEC20917A patent/DE1200390B/de active Pending
- 1960-03-02 BE BE588199A patent/BE588199A/fr unknown
Also Published As
Publication number | Publication date |
---|---|
SE303308B (es) | 1968-08-26 |
BE588199A (fr) | 1960-07-01 |
DE1200390B (de) | 1965-09-09 |
NL248958A (es) | |
FR1229791A (fr) | 1960-09-09 |