GB550009A - Broadcasting antenna systems - Google Patents
Broadcasting antenna systemsInfo
- Publication number
- GB550009A GB550009A GB12065/41A GB1206541A GB550009A GB 550009 A GB550009 A GB 550009A GB 12065/41 A GB12065/41 A GB 12065/41A GB 1206541 A GB1206541 A GB 1206541A GB 550009 A GB550009 A GB 550009A
- Authority
- GB
- United Kingdom
- Prior art keywords
- members
- radiating
- units
- sept
- mid
- 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
- H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
550,009. Wireless directive signalling ; aerials. STANDARD TELEPHONES & CABLES, Ltd. Sept. 19, 1941, No. 12065. Convention date, Sept. 25, 1940. [Class 40 (v)] An antenna unit comprises three or more radiating members 30 ... 33, Fig. 3, arranged in the form of a square or other closed pattern. Energy from the transmitter 34 is fed over lines 36, 37 to energize members 30, 31 adjacent their mid-points and in phase opposition. The ends of members 32, 33 are turned inwards at 38 to provide a capacity coupling with the members 30, 31 by which they are energized. Each of the members 30 ... 33 has a voltage node at its mid-point, so that they may be supported at these points without insulation from each other or from ground. Fig. 4 shows a practical form in which the members 30 ... 33 are of aluminium channel or tubing supported from a metal post 44 by metal tubes 40 ... 43, the leads to members 30, 31 passing through tubes 40, 41. Several such units may be mounted one above the other, Fig. 7 (not shown), the feed line being connected by branched transmission lines to the units in such a way that they are energized in phase. Fig. 1 shows a broadcast antenna array comprising two or more units 11, 12, 13, each producing a toroidal field pattern having a uniform value in a horizontal plane, and spaced apart vertically by a distance of the order of 200-400 electrical degrees at the operating frequencies. Heating elements for removing sleet may be mounted inside the radiating members, Fig. 8 (not shown). The radiating members of each unit may be arranged to form a circle, a hexagon, or a triangle, Figs. 9, 11, 12 (not shown). In Fig. 10, each radiating member 30 ... 33 is bent at right angles as shown, the ends of members 32, 33 being bent to overlap the ends of 30, 31 to provide the necessary coupling capacity. Specification 538,036 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US358214A US2289856A (en) | 1940-09-25 | 1940-09-25 | Broadcasting antenna system |
Publications (1)
Publication Number | Publication Date |
---|---|
GB550009A true GB550009A (en) | 1942-12-17 |
Family
ID=23408733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB12065/41A Expired GB550009A (en) | 1940-09-25 | 1941-09-19 | Broadcasting antenna systems |
Country Status (4)
Country | Link |
---|---|
US (1) | US2289856A (en) |
FR (1) | FR939004A (en) |
GB (1) | GB550009A (en) |
NL (1) | NL66746C (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2471515A (en) * | 1944-07-25 | 1949-05-31 | Rca Corp | Antenna |
BE463048A (en) * | 1945-01-27 | |||
US2639382A (en) * | 1945-08-30 | 1953-05-19 | Us Sec War | Antenna |
US2487622A (en) * | 1946-02-28 | 1949-11-08 | Rca Corp | Three-phase slot antenna system |
US2521550A (en) * | 1946-02-28 | 1950-09-05 | Bell Telephone Labor Inc | Radio antenna system |
US2666850A (en) * | 1946-03-29 | 1954-01-19 | John D Kraus | Antenna |
US2648001A (en) * | 1946-04-11 | 1953-08-04 | Us Navy | Ring type antenna |
US2493569A (en) * | 1946-05-13 | 1950-01-03 | Gen Electric | Composite loop antenna system |
US2467962A (en) * | 1947-01-28 | 1949-04-19 | Electronies Res Inc | High-frequency antenna |
US2580798A (en) * | 1947-05-22 | 1952-01-01 | Kolster Muriel | Broad-band antenna system |
US2467991A (en) * | 1947-06-06 | 1949-04-19 | Electronics Res Inc | High-frequency antenna |
NL78888C (en) * | 1947-12-23 | |||
US2631237A (en) * | 1948-05-08 | 1953-03-10 | Fed Telecomm Lab Inc | Antenna |
DE973229C (en) * | 1949-03-04 | 1959-12-24 | Siemens Ag | Radiator designed as a dipole |
GB721582A (en) * | 1950-04-27 | 1955-01-12 | Marconi Wireless Telegraph Co | Improvements in or relating to short wave radio aerials and aerial systems |
US2666138A (en) * | 1950-05-25 | 1954-01-12 | Radiart Corp | Antenna |
US5506594A (en) * | 1994-04-05 | 1996-04-09 | Howell Laboratories, Inc. | Helically shaped circularly polarizing antenna |
-
1940
- 1940-09-25 US US358214A patent/US2289856A/en not_active Expired - Lifetime
-
1941
- 1941-09-19 GB GB12065/41A patent/GB550009A/en not_active Expired
-
1946
- 1946-03-14 FR FR939004D patent/FR939004A/en not_active Expired
-
1947
- 1947-03-24 NL NL131202A patent/NL66746C/xx active
Also Published As
Publication number | Publication date |
---|---|
NL66746C (en) | 1950-11-15 |
US2289856A (en) | 1942-07-14 |
FR939004A (en) | 1948-11-02 |
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