GB475855A - Improvements in or relating to ultra short wave radio aerial systems - Google Patents
Improvements in or relating to ultra short wave radio aerial systemsInfo
- Publication number
- GB475855A GB475855A GB11569/37A GB1156937A GB475855A GB 475855 A GB475855 A GB 475855A GB 11569/37 A GB11569/37 A GB 11569/37A GB 1156937 A GB1156937 A GB 1156937A GB 475855 A GB475855 A GB 475855A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dipole
- april
- transmitter
- tubes
- receiver
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
- H01Q21/10—Collinear arrangements of substantially straight elongated conductive units
Landscapes
- Details Of Aerials (AREA)
Abstract
475,855. Aerials. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. April 22, 1937, No. 11569. Convention date, April 22, 1936. [Class 40 (v)] A short-wave aerial comprises a number of coaxial dipole tubes, each a half-wave in length, through which runs a two-wire feed-line Sp connected alternately to the upper and lower members of adjacent sections. It is characterized by the feature that the feeder surge impedance is graduated from a maximum at the dipole nearest the transmitter or receiver to a minimum at the other end. The arrangement gives equal current loadings in all the dipole tubes. To secure this result, the feed-lines are spaced more widely from each other at the bottom .than at the top ; the surge impedance then decreases with distance from the transmitter or receiver. The metal dipoles are mechanically connected together by suitable insulators, or they may be drawn over a continuous ceramic tube. Or they may be constituted by silver layers formed on a long ceramic tube. By varying the phase-relation of the dipoles, a mushroom - shaped radiation field is obtained.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE475855X | 1936-04-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB475855A true GB475855A (en) | 1937-11-26 |
Family
ID=6541916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11569/37A Expired GB475855A (en) | 1936-04-22 | 1937-04-22 | Improvements in or relating to ultra short wave radio aerial systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB475855A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2846678A (en) * | 1955-06-09 | 1958-08-05 | Sanders Associates Inc | Dual frequency antenna |
| US2945232A (en) * | 1949-03-07 | 1960-07-12 | Alford Andrew | Antenna structure |
| US3961332A (en) * | 1975-07-24 | 1976-06-01 | Middlemark Marvin P | Elongated television receiving antenna for indoor use |
| US5252984A (en) * | 1989-07-05 | 1993-10-12 | Robert Bosch Gmbh | Multiband coaxial rod and sleeve antenna |
-
1937
- 1937-04-22 GB GB11569/37A patent/GB475855A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2945232A (en) * | 1949-03-07 | 1960-07-12 | Alford Andrew | Antenna structure |
| US2846678A (en) * | 1955-06-09 | 1958-08-05 | Sanders Associates Inc | Dual frequency antenna |
| US3961332A (en) * | 1975-07-24 | 1976-06-01 | Middlemark Marvin P | Elongated television receiving antenna for indoor use |
| US5252984A (en) * | 1989-07-05 | 1993-10-12 | Robert Bosch Gmbh | Multiband coaxial rod and sleeve antenna |
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