FR2264290B1 - - Google Patents
Info
- Publication number
- FR2264290B1 FR2264290B1 FR7408255A FR7408255A FR2264290B1 FR 2264290 B1 FR2264290 B1 FR 2264290B1 FR 7408255 A FR7408255 A FR 7408255A FR 7408255 A FR7408255 A FR 7408255A FR 2264290 B1 FR2264290 B1 FR 2264290B1
- Authority
- FR
- France
- 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
- 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
- H01Q3/24—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 by switching energy from one active radiating element to another, e.g. for beam switching
- H01Q3/242—Circumferential scanning
-
- 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
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7408255A FR2264290B1 (US06350818-20020226-C00016.png) | 1974-03-12 | 1974-03-12 | |
| IT4853075A IT1032250B (it) | 1974-03-12 | 1975-03-10 | Sistema rioevitore di radiogonio metria |
| GB992575A GB1490918A (en) | 1974-03-12 | 1975-03-10 | Radio direction-finding receiver system |
| SU752109236A SU912061A3 (ru) | 1974-03-12 | 1975-03-11 | Бортовой радиопеленгатор |
| DE19752510598 DE2510598C3 (de) | 1974-03-12 | 1975-03-11 | Funkpeilempfangsanlage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7408255A FR2264290B1 (US06350818-20020226-C00016.png) | 1974-03-12 | 1974-03-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2264290A1 FR2264290A1 (US06350818-20020226-C00016.png) | 1975-10-10 |
| FR2264290B1 true FR2264290B1 (US06350818-20020226-C00016.png) | 1979-07-06 |
Family
ID=9136145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7408255A Expired FR2264290B1 (US06350818-20020226-C00016.png) | 1974-03-12 | 1974-03-12 |
Country Status (4)
| Country | Link |
|---|---|
| FR (1) | FR2264290B1 (US06350818-20020226-C00016.png) |
| GB (1) | GB1490918A (US06350818-20020226-C00016.png) |
| IT (1) | IT1032250B (US06350818-20020226-C00016.png) |
| SU (1) | SU912061A3 (US06350818-20020226-C00016.png) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4338606A (en) * | 1978-12-21 | 1982-07-06 | Sony Corporation | Antenna system with variable directivity |
| JPS59108404A (ja) * | 1982-12-14 | 1984-06-22 | Taiyo Musen Kk | 方向探知機の空中線装置 |
| JPS60147666A (ja) * | 1984-01-13 | 1985-08-03 | Taiyo Musen Kk | 方向探知機の空中線装置 |
| GB8426245D0 (en) * | 1984-10-17 | 1984-11-21 | British Gas Corp | Microwave reflection survey equipment |
| GB8426246D0 (en) * | 1984-10-17 | 1984-11-21 | British Gas Corp | Microwave reflection survey equipment |
-
1974
- 1974-03-12 FR FR7408255A patent/FR2264290B1/fr not_active Expired
-
1975
- 1975-03-10 GB GB992575A patent/GB1490918A/en not_active Expired
- 1975-03-10 IT IT4853075A patent/IT1032250B/it active
- 1975-03-11 SU SU752109236A patent/SU912061A3/ru active
Also Published As
| Publication number | Publication date |
|---|---|
| IT1032250B (it) | 1979-05-30 |
| GB1490918A (en) | 1977-11-02 |
| FR2264290A1 (US06350818-20020226-C00016.png) | 1975-10-10 |
| SU912061A3 (ru) | 1982-03-07 |
| DE2510598B2 (de) | 1977-06-08 |
| DE2510598A1 (de) | 1975-09-18 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CL | Concession to grant licenses | ||
| ST | Notification of lapse |