FR1204446A - Perfectionnements apportés aux antennes radioélectriques - Google Patents
Perfectionnements apportés aux antennes radioélectriquesInfo
- Publication number
- FR1204446A FR1204446A FR1204446DA FR1204446A FR 1204446 A FR1204446 A FR 1204446A FR 1204446D A FR1204446D A FR 1204446DA FR 1204446 A FR1204446 A FR 1204446A
- Authority
- FR
- France
- Prior art keywords
- radio antennas
- antennas
- radio
- 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
-
- 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
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
- G01S13/60—Velocity or trajectory determination systems; Sense-of-movement determination systems wherein the transmitter and receiver are mounted on the moving object, e.g. for determining ground speed, drift angle, ground track
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/004—Antennas or antenna systems providing at least two radiating patterns providing two or four symmetrical beams for Janus application
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1204446T | 1958-03-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1204446A true FR1204446A (fr) | 1960-01-26 |
Family
ID=9672849
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1204446D Expired FR1204446A (fr) | 1958-03-31 | 1958-03-31 | Perfectionnements apportés aux antennes radioélectriques |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1204446A (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1265246B (de) * | 1962-03-19 | 1968-04-04 | Marconi Co Ltd | Richtantennensystem fuer ein Doppler-Flugzeug-Geschwindigkeits- und -Abtriftmessgeraet |
FR2486723A1 (fr) * | 1980-07-09 | 1982-01-15 | Singer Co | Procede et dispositif de construction d'une antenne a forme rectangulaire pour la navigation doppler |
-
1958
- 1958-03-31 FR FR1204446D patent/FR1204446A/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1265246B (de) * | 1962-03-19 | 1968-04-04 | Marconi Co Ltd | Richtantennensystem fuer ein Doppler-Flugzeug-Geschwindigkeits- und -Abtriftmessgeraet |
FR2486723A1 (fr) * | 1980-07-09 | 1982-01-15 | Singer Co | Procede et dispositif de construction d'une antenne a forme rectangulaire pour la navigation doppler |
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