GB592763A - Improvements in aerial arrangements for radio signalling systems - Google Patents
Improvements in aerial arrangements for radio signalling systemsInfo
- Publication number
- GB592763A GB592763A GB929645A GB929645A GB592763A GB 592763 A GB592763 A GB 592763A GB 929645 A GB929645 A GB 929645A GB 929645 A GB929645 A GB 929645A GB 592763 A GB592763 A GB 592763A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aerial
- sleeve
- tube
- bushing
- varied
- 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
- 230000011664 signaling Effects 0.000 title 1
- 239000004020 conductor Substances 0.000 abstract 3
- 101700078171 KNTC1 Proteins 0.000 abstract 2
- 239000011810 insulating material Substances 0.000 abstract 1
- 239000000696 magnetic material Substances 0.000 abstract 1
- 239000006247 magnetic powder Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/24—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave constituted by a dielectric or ferromagnetic rod or pipe
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
Landscapes
- Details Of Aerials (AREA)
Abstract
592,763. Aerials. GENERAL ELECTRIC CO., Ltd., and POLGREEN, G. R. April 13, 1945, No. 9296. [Class 40 (v)] The conducting element of an aerial is loaded magnetically with a sleeve of low-loss magnetic material to increase the inductance of the aerial and the effective resonant frequency of the aerial is varied by relative movement of the sleeve and conductor. A dipole rod 1 is mounted to slide within conducting bushings 4 and 5 secured in a tube 3 of insulating material, A number of cylindrical pressings 2 of magnetic powder are cemented to the inside of the tube 3. The tube 3 is supported, by means of an extension of the bushing 4 and an additional support 7, on a hollow metal mast 6 which serves as the outer conductor of a concentric feeder, the inner conductor 8 of which is connected to the bushing 5. The position of the rod 1 within its sleeve may be varied by hand or automatically, the distance between the bushings 4 and 5 being selected so that the aerial is matched to the feeder. The arrangement may be modified so that the aerial may be adjusted to lie in various directions with respect to the mast 6.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB592763A true GB592763A (en) | 1947-09-29 |
Family
ID=1629742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB929645A Expired GB592763A (en) | 1945-04-13 | Improvements in aerial arrangements for radio signalling systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB592763A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2748386A (en) * | 1951-12-04 | 1956-05-29 | Wladimir J Polydoroff | Antenna systems |
| US2941204A (en) * | 1955-06-16 | 1960-06-14 | Arnold B Bailey | Antenna mount |
| US3302208A (en) * | 1964-03-20 | 1967-01-31 | Hendrickson Alice | Dipole antenna including ferrite sleeves about the medial portions of its radiating elements |
| US5818173A (en) * | 1994-09-06 | 1998-10-06 | Commissariat A L'energie Atomique | Cylindrical antenna having means for generating a magnetic field in a vicinity of the antenna |
-
1945
- 1945-04-13 GB GB929645A patent/GB592763A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2748386A (en) * | 1951-12-04 | 1956-05-29 | Wladimir J Polydoroff | Antenna systems |
| US2941204A (en) * | 1955-06-16 | 1960-06-14 | Arnold B Bailey | Antenna mount |
| US3302208A (en) * | 1964-03-20 | 1967-01-31 | Hendrickson Alice | Dipole antenna including ferrite sleeves about the medial portions of its radiating elements |
| US5818173A (en) * | 1994-09-06 | 1998-10-06 | Commissariat A L'energie Atomique | Cylindrical antenna having means for generating a magnetic field in a vicinity of the antenna |
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