GB387664A - Improvements in or relating to aerial systems having a directional effect - Google Patents
Improvements in or relating to aerial systems having a directional effectInfo
- Publication number
- GB387664A GB387664A GB13453/31A GB1345331A GB387664A GB 387664 A GB387664 A GB 387664A GB 13453/31 A GB13453/31 A GB 13453/31A GB 1345331 A GB1345331 A GB 1345331A GB 387664 A GB387664 A GB 387664A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aerials
- spacing
- lines
- phase
- radiation
- 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
- Transceivers (AREA)
Abstract
387,664. Directive wireless signalling. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Em. masingel, Eindhoven, Holland. May 6, 1931, No. 13453. Convention date, May 26, 1930. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. [Class 40 (v).] To secure a definite field-strength at a given distance with a minimum expenditure of power, the spacing d of a directional array of aerials is determined by the formula d=<n>/n+1# where n is the number of separate aerials and # the wave-length. For broadside radiation, each aerial should be fed in phase, and the optimum spacing is co-ordinated with the electrical spacing (which must be one or more whole wavelengths) by inserting loading-impedances in the feed-lines, or by bending or coiling the lines. For end-on radiation the spacing between two aerials, or in-phase rows, is <7>/12 # with a phasedifference of 230‹. The current-amplitude should preferably be greater at the centre of a row of aerials than at the two ends.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL387664X | 1930-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB387664A true GB387664A (en) | 1933-02-09 |
Family
ID=19785732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13453/31A Expired GB387664A (en) | 1930-05-26 | 1931-05-06 | Improvements in or relating to aerial systems having a directional effect |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE379607A (en) |
| FR (1) | FR716759A (en) |
| GB (1) | GB387664A (en) |
-
0
- BE BE379607D patent/BE379607A/xx unknown
-
1931
- 1931-05-06 GB GB13453/31A patent/GB387664A/en not_active Expired
- 1931-05-07 FR FR716759D patent/FR716759A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR716759A (en) | 1931-12-28 |
| BE379607A (en) |
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