GB402835A - Improvements in or relating to directional radio beam systems - Google Patents
Improvements in or relating to directional radio beam systemsInfo
- Publication number
- GB402835A GB402835A GB16571/32A GB1657132A GB402835A GB 402835 A GB402835 A GB 402835A GB 16571/32 A GB16571/32 A GB 16571/32A GB 1657132 A GB1657132 A GB 1657132A GB 402835 A GB402835 A GB 402835A
- Authority
- GB
- United Kingdom
- Prior art keywords
- horizontal
- alpha
- earth
- distance
- polarized waves
- 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
Landscapes
- Aerials With Secondary Devices (AREA)
Abstract
402,835. Directive wireless signalling. FEDERAL TELEGRAPH CO., 200, Mount Pleasant Avenue, Newark, New Jersey, U.S.A. -(Assignees of Kruesi, G. G. ; 230, East 51st Street, New York, U.S.A.) June 11, 1932, No. 16571. Convention date, July 29, 1931. Drawings to Specification. [Class 40 (v).] In a short-wave long range directive system, a radiating source at the focus of a reflector is so positioned above a horizontal reflecting surface such as the earth, that the main radiation occurs at the optimum angle with the horizontal and radiation reflected from the horizontal surface and parallel to the main beam is in phase therewith. Thus for vertically polarized waves the radiator is placed at a distance #/2 sin alpha or any multiple thereof above the earth and for horizontally polarized waves a distance #/4 sin alpha or any odd multiple thereof where alpha is the angle the beam makes with the horizontal. The system is also suitable for reception.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US402835XA | 1931-07-29 | 1931-07-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB402835A true GB402835A (en) | 1933-12-11 |
Family
ID=21910145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16571/32A Expired GB402835A (en) | 1931-07-29 | 1932-06-11 | Improvements in or relating to directional radio beam systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB402835A (en) |
-
1932
- 1932-06-11 GB GB16571/32A patent/GB402835A/en not_active Expired
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