GB1297958A - - Google Patents
Info
- Publication number
- GB1297958A GB1297958A GB1297958DA GB1297958A GB 1297958 A GB1297958 A GB 1297958A GB 1297958D A GB1297958D A GB 1297958DA GB 1297958 A GB1297958 A GB 1297958A
- Authority
- GB
- United Kingdom
- Prior art keywords
- antenna
- azimuth
- horizontal
- angle
- radar
- 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
- 230000035945 sensitivity Effects 0.000 abstract 2
- 238000002592 echocardiography Methods 0.000 abstract 1
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
- H01Q3/02—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 movement of antenna or antenna system as a whole
- H01Q3/04—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 movement of antenna or antenna system as a whole for varying one co-ordinate of the orientation
-
- 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)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2649269 | 1969-05-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1297958A true GB1297958A (enrdf_load_stackoverflow) | 1972-11-29 |
Family
ID=10244500
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1297958D Expired GB1297958A (enrdf_load_stackoverflow) | 1969-05-23 | 1969-05-23 |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB1297958A (enrdf_load_stackoverflow) |
SE (1) | SE358031B (enrdf_load_stackoverflow) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1338060B1 (en) * | 2000-11-06 | 2009-01-21 | Telefonaktiebolaget LM Ericsson (publ) | Group antenna with narrow main lobes in the horizontal plane |
-
1969
- 1969-05-23 GB GB1297958D patent/GB1297958A/en not_active Expired
-
1970
- 1970-05-04 SE SE610670A patent/SE358031B/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1338060B1 (en) * | 2000-11-06 | 2009-01-21 | Telefonaktiebolaget LM Ericsson (publ) | Group antenna with narrow main lobes in the horizontal plane |
Also Published As
Publication number | Publication date |
---|---|
SE358031B (enrdf_load_stackoverflow) | 1973-07-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |