GB256786A - Improvements in or relating to the propagation of wireless waves - Google Patents
Improvements in or relating to the propagation of wireless wavesInfo
- Publication number
- GB256786A GB256786A GB20802/25A GB2080225A GB256786A GB 256786 A GB256786 A GB 256786A GB 20802/25 A GB20802/25 A GB 20802/25A GB 2080225 A GB2080225 A GB 2080225A GB 256786 A GB256786 A GB 256786A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wires
- wavelength
- earthed
- oscillator
- ellipse
- 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
- Aerials With Secondary Devices (AREA)
Abstract
256,786. Galletti, R. C. Aug. 19, 1925. Aerials; directive signalling. -Electromagnetic waves are concentrated along a ray or beam by completely surrounding the radiating oscillator by a number of wires c arranged along the surface of an imaginary body of elliptical crosssection, the radiating oscillator lying in a focal line b<1> of the ellipse. The wires c may be parallel to one another or may lie along the surface of an imaginary conical body. To obtain radiation in one direction only the wires may be earthed and a reflector may be employed spaced a “ wavelength from the earthed end. A second radiating oscillator may be placed in the other focal line b<2> and energized 180‹ out of phase with the first oscillator. The major axis d of the ellipse is preferably made equal to a ¢ wavelength or a multiple thereof and the natural frequency of each of the wires c is preferably made equal to a ¢ wavelength, or in the case where one end is earthed equal to a “ wavelength or a multiple thereof in either case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB20802/25A GB256786A (en) | 1925-08-19 | 1925-08-19 | Improvements in or relating to the propagation of wireless waves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB20802/25A GB256786A (en) | 1925-08-19 | 1925-08-19 | Improvements in or relating to the propagation of wireless waves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB256786A true GB256786A (en) | 1926-08-19 |
Family
ID=10151910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20802/25A Expired GB256786A (en) | 1925-08-19 | 1925-08-19 | Improvements in or relating to the propagation of wireless waves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB256786A (en) |
-
1925
- 1925-08-19 GB GB20802/25A patent/GB256786A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2414266A (en) | Antenna | |
| US2599864A (en) | Wave front modifying wave guide system | |
| US2436408A (en) | Radio wave reflecting transducer system | |
| GB493695A (en) | Improvements in or pertaining to the transmission and/or reception of electromagnetic waves | |
| US2054896A (en) | Reflector system for ultrashort electric waves | |
| GB263753A (en) | Directive projecting and receiving system for use in wireless telegraphy or telephony | |
| US2840819A (en) | Reflecting surfaces | |
| US2477694A (en) | Radio waves radiators | |
| US2611867A (en) | Slotted winged cylindrical antenna | |
| US2486589A (en) | Apple-core reflector antenna | |
| US2698901A (en) | Back-radiation reflector for microwave antenna systems | |
| GB256786A (en) | Improvements in or relating to the propagation of wireless waves | |
| US2483575A (en) | Directional microwave antenna | |
| GB755011A (en) | Improvements relating to radio beam antenna arrangements | |
| US2635189A (en) | Wave guide antenna with bisectional radiator | |
| US2846680A (en) | Directive antennas | |
| US2530079A (en) | Directive antenna system | |
| US2526675A (en) | Antenna structure | |
| US2065787A (en) | Symmetrical antenna for short or ultra-short electrical waves | |
| US1957949A (en) | Antenna | |
| US2669658A (en) | Phase correction of asymmetric dual feed horns | |
| US2973514A (en) | Parallel plate transmission line antenna | |
| US2540757A (en) | Antenna | |
| GB990032A (en) | Omnidirectional beacon antenna | |
| US1714864A (en) | Roberto clemens galletti |