GB534909A - Improvements in or relating to antenna - Google Patents
Improvements in or relating to antennaInfo
- Publication number
- GB534909A GB534909A GB30921/39A GB3092139A GB534909A GB 534909 A GB534909 A GB 534909A GB 30921/39 A GB30921/39 A GB 30921/39A GB 3092139 A GB3092139 A GB 3092139A GB 534909 A GB534909 A GB 534909A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wave
- length
- aerials
- nov
- dipoles
- 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
- 230000005540 biological transmission Effects 0.000 abstract 1
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
- H01Q21/061—Two dimensional planar arrays
- H01Q21/062—Two dimensional planar arrays using dipole aerials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
- H01Q5/48—Combinations of two or more dipole type antennas
-
- 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
- H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
534,909. Aerials. MARCONI'S WIRELESS TELEGRAPH CO., Ltd: Nov. 27, 1939, No. 30921. Convention date, Nov. 26, 1938. [Class 40 (v)] A short-wave aerial, particularly suitable for receiving broadcast television signals, comprises a pair of L-shaped wires 1, 3 and 2, 4 arranged horizontally. Each wire has an overall length of half the shortest working wave-length, and each is connected to one side of a transmission line TL. The figure-of-eight response of the two quarterwave dipoles 1, 2 when combined with the out-of-phase signals from the two quarter-wave dipoles 3, 4 produces a substantially-circular or non-directional response. A second pair of aerials, dimensioned for a shorter wave-length, may be connected in parallel with the first, in order to enable the aerial system to cover a wider range of frequencies.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US534909XA | 1938-11-26 | 1938-11-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB534909A true GB534909A (en) | 1941-03-21 |
Family
ID=21984640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB30921/39A Expired GB534909A (en) | 1938-11-26 | 1939-11-27 | Improvements in or relating to antenna |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB534909A (en) |
-
1939
- 1939-11-27 GB GB30921/39A patent/GB534909A/en not_active Expired
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