GB784807A - Improvements in or relating to aerials - Google Patents
Improvements in or relating to aerialsInfo
- Publication number
- GB784807A GB784807A GB2383655A GB2383655A GB784807A GB 784807 A GB784807 A GB 784807A GB 2383655 A GB2383655 A GB 2383655A GB 2383655 A GB2383655 A GB 2383655A GB 784807 A GB784807 A GB 784807A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aerial
- helix
- feeder
- cabinet
- carries
- 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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/362—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith for broadside radiating helical antennas
Landscapes
- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Details Of Aerials (AREA)
- Support Of Aerials (AREA)
Abstract
784,807. Aerials; radio receiving sets. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 18, 1955 [Aug. 21, 1954], No. 23836/55. Classes 40 (5) and 40 (7). A aerial suitable for incorporation into the cabinet of a radio receiver comprises a conductor of a length approximately equal to half the operating wavelength wound into a continuous open-ended helix. The feeder for the aerial is connected to two tapping points positioned symmetrically on either side of the centre of the winding and spaced suitably to match the aerial and feeder. The total length of the helix may be between #/10 and #/20 and the diameter between #/100 and #/200. It is possible to damp the aerial by connecting a suitable resistance across the helix. Further helical conductors may be arranged parallel to the aerial helix to form a director and reflector. In an embodiment mounted inside a radio cabinet a non-metallic bracket 13 is secured on top of a rotatable shaft 8. This carries a rod 14 of ferromagnetic material on which are wound coils 15 and 16 for medium and long waveband reception. It also carries a ceramic rod 17 to which are glued the turns of an aerial 1 constructed according to the invention. The feeder 2 is connected symmetrically as shown. The shaft 8 carries a pulley 18 driven by rope 19 and shaft 20 which projects through the front of the cabinet so that the aerial directivity can be adjusted thereby.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP12551A DE1012656B (en) | 1954-08-21 | 1954-08-21 | Dipole antenna built into a radio receiver |
Publications (1)
Publication Number | Publication Date |
---|---|
GB784807A true GB784807A (en) | 1957-10-16 |
Family
ID=7364126
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2383655A Expired GB784807A (en) | 1954-08-21 | 1955-08-18 | Improvements in or relating to aerials |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1012656B (en) |
FR (1) | FR1137499A (en) |
GB (1) | GB784807A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2955286A (en) * | 1958-02-24 | 1960-10-04 | Internat Res & Dev Corp | Plural loop antenna having ferrite cores |
EP1122810A2 (en) * | 2000-01-31 | 2001-08-08 | Mitsubishi Materials Corporation | Antenna device and assembly of antenna device |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2077724B1 (en) * | 1970-02-05 | 1973-12-21 | Choffat Georges | |
AU2292670A (en) * | 1970-12-02 | 1972-06-08 | Chu Associates, Inc | Balanced tunable helical monopole antenna |
US4879570A (en) * | 1987-03-24 | 1989-11-07 | Nippon Antenna Co., Ltd. | Broadcasting wave reception antenna |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR946920A (en) * | 1946-05-21 | 1949-06-17 | Philips Nv | Antenna |
FR982724A (en) * | 1949-03-08 | 1951-06-14 | Ind De E C Grammont Et De Alex | Antenna for television receivers |
-
1954
- 1954-08-21 DE DEP12551A patent/DE1012656B/en active Pending
-
1955
- 1955-08-18 GB GB2383655A patent/GB784807A/en not_active Expired
- 1955-08-19 FR FR1137499D patent/FR1137499A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2955286A (en) * | 1958-02-24 | 1960-10-04 | Internat Res & Dev Corp | Plural loop antenna having ferrite cores |
EP1122810A2 (en) * | 2000-01-31 | 2001-08-08 | Mitsubishi Materials Corporation | Antenna device and assembly of antenna device |
EP1122810B1 (en) * | 2000-01-31 | 2012-02-22 | Mitsubishi Materials Corporation | Antenna device |
Also Published As
Publication number | Publication date |
---|---|
DE1012656B (en) | 1957-07-25 |
FR1137499A (en) | 1957-05-29 |
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