GB643989A - Improvements in or relating to dipole aerial arrays - Google Patents
Improvements in or relating to dipole aerial arraysInfo
- Publication number
- GB643989A GB643989A GB34121/46A GB3412146A GB643989A GB 643989 A GB643989 A GB 643989A GB 34121/46 A GB34121/46 A GB 34121/46A GB 3412146 A GB3412146 A GB 3412146A GB 643989 A GB643989 A GB 643989A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spacing
- dipoles
- phase
- aerials
- energized
- 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
- H01Q21/12—Parallel arrangements of substantially straight elongated conductive units
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
643,989. Aerials. PHILIPS LAMPS, Ltd. Nov. 18, 1946, No. 34121. Convention date, June 21, 1943. Drawings to Specification. [Class 40 (vii)] In a wide-band array of parallel cylindrical or bi-conical dipoles, the spacing, phase of energization and factor of slenderness, i.e. the length/thickness ratio, are adjusted so that the reactive components Xm and X of the mutual- and self-impedance cancel one another at the input terminals of each dipole at frequencies in the neighbourhood of resonance. For a pair of dipoles energized in phase the required spacing is 0.135# and for out-of-phase energization the spacing is 0.68#, and for an array of n dipoles located at the angular points of a regular polygon the spacing is either 0.135# for n=3 or slightly less than 0.135# for n>3. According to the Specification as open to inspection under Sect. 91, the embodiment comprising a pair of aerials energized in out-ofphase relationship may be replaced by a single dipole spaced from a plane reflector. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL247571X | 1943-06-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB643989A true GB643989A (en) | 1950-10-04 |
Family
ID=19780916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34121/46A Expired GB643989A (en) | 1943-06-21 | 1946-11-18 | Improvements in or relating to dipole aerial arrays |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE456413A (en) |
| CH (1) | CH247571A (en) |
| DE (1) | DE869229C (en) |
| FR (1) | FR905801A (en) |
| GB (1) | GB643989A (en) |
| NL (1) | NL67292C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1131282B (en) * | 1957-11-06 | 1962-06-14 | Rudolf Netuschil | Tuned dipole antenna with several elements in one plane |
-
0
- FR FR905801D patent/FR905801A/fr not_active Expired
- NL NL67292D patent/NL67292C/xx active
- BE BE456413D patent/BE456413A/xx unknown
-
1944
- 1944-06-20 CH CH247571D patent/CH247571A/en unknown
- 1944-06-25 DE DEN2470D patent/DE869229C/en not_active Expired
-
1946
- 1946-11-18 GB GB34121/46A patent/GB643989A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL67292C (en) | |
| FR905801A (en) | 1946-01-17 |
| DE869229C (en) | 1953-03-02 |
| BE456413A (en) | |
| CH247571A (en) | 1947-03-15 |
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