GB1261587A - Aerial system consisting of 2 aerials vertically offset with respect to one another at least the lower one being a crossed direction-finding aerial system - Google Patents
Aerial system consisting of 2 aerials vertically offset with respect to one another at least the lower one being a crossed direction-finding aerial systemInfo
- Publication number
- GB1261587A GB1261587A GB2602169A GB2602169A GB1261587A GB 1261587 A GB1261587 A GB 1261587A GB 2602169 A GB2602169 A GB 2602169A GB 2602169 A GB2602169 A GB 2602169A GB 1261587 A GB1261587 A GB 1261587A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frames
- aerials
- finding
- aerial system
- aerial
- 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
- 229910000859 α-Fe Inorganic materials 0.000 abstract 3
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/28—Combinations of substantially independent non-interacting antenna units or 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
- 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)
- Aerials With Secondary Devices (AREA)
Abstract
1,261,587. Aerials; radio direction-finders. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 21 May, 1969 [21 May, 1968], No. 26021/69. Headings H4A and H4D. The feeder(s) to the upper of two vertically displaced aerials, the lower one of which is a crossed-direction-finding aerial, are guided by a vertical frame surrounding the latter. In an embodiment the mast head 2 of a ship carries a V.H.F. direction-finding system including eight aerials 1 connected in parallel in pairs; a lower frequency direction-finding system includes pairs 3, 4 of ferrite rods and an auxiliary aerial of two frusto-conical or frusto-pyramidal linings disposed above and below the plane of the frames. A crossed frame with tubular frames 5, 6 guides the feeders to the V.H.F. directionfinder, the planes of the frames being aligned parallel to rods 3, 4. It is stated that directionfinding errors resulting from currents flowing in frames 5, 6 do not ensue. To reduce reduction in the sensitivity of the lower aerial system rings of ferrite 8 are arranged on frames 5, 6. The tubes of the latter are electrically connected to parts 9, 10. Frames 5, 6 may be utilized as a further direction-finder, coupling windings being on at least some of the ferrite rings, Fig. 2 (not shown). The invention may be applied to more than two vertically-spaced systems.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681766430 DE1766430C3 (en) | 1968-05-21 | Antenna system, consisting of at least two vertically offset antennas, of which at least one lower is a crossed DF antenna system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1261587A true GB1261587A (en) | 1972-01-26 |
Family
ID=5698932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2602169A Expired GB1261587A (en) | 1968-05-21 | 1969-05-21 | Aerial system consisting of 2 aerials vertically offset with respect to one another at least the lower one being a crossed direction-finding aerial system |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1261587A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994026001A1 (en) * | 1993-04-30 | 1994-11-10 | Hazeltine Corporation | Steerable antenna systems |
-
1969
- 1969-05-21 GB GB2602169A patent/GB1261587A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994026001A1 (en) * | 1993-04-30 | 1994-11-10 | Hazeltine Corporation | Steerable antenna systems |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1766430B2 (en) | 1977-02-03 |
| DE1766430A1 (en) | 1971-07-15 |
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