GB434637A - Improvements in or relating to radio transmitters - Google Patents
Improvements in or relating to radio transmittersInfo
- Publication number
- GB434637A GB434637A GB36198/34A GB3619834A GB434637A GB 434637 A GB434637 A GB 434637A GB 36198/34 A GB36198/34 A GB 36198/34A GB 3619834 A GB3619834 A GB 3619834A GB 434637 A GB434637 A GB 434637A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phase
- dec
- fed
- aerials
- shows
- 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
- 238000003491 array Methods 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- 230000011664 signaling 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
- H01Q21/22—Antenna units of the array energised non-uniformly in amplitude or phase, e.g. tapered array or binomial array
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
434,637. Directive wireless signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Carter, P. S. ; Port Jefferson, Long Island, New York, U.S.A.) Dec. 17, 1934, No. 36198. Convention date, Dec. 16, 1933. [Class 40 (v)] Two or more directive aerials, each having a radiation field of the shape shown in Fig. 2, are fed from a common source in phase-opposition, and are spaced apart by a specified function of the working wavelength, so as to radiate simultaneously two clear-cut beams separated by an angle #, as shown in Fig. 3. Fig. 8 shows two aerial arrays 1, 2 with the required spacing, a reversing switch RS being provided, so that the two units may be fed in phase to give a single radiation-field as in Fig. 2, or out of phase to produce a double beam as in Fig. 3. Fig. 9 shows the arrangement applied to two pairs of aerials marked 1 ... 4.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US702711A US2038539A (en) | 1933-12-16 | 1933-12-16 | Antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB434637A true GB434637A (en) | 1935-09-05 |
Family
ID=24822296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB36198/34A Expired GB434637A (en) | 1933-12-16 | 1934-12-17 | Improvements in or relating to radio transmitters |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2038539A (en) |
| GB (1) | GB434637A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2419609A (en) * | 1940-09-25 | 1947-04-29 | Standard Telephones Cables Ltd | Means for overcoming the effects of earth reflections in directional antenna systems |
| US2422076A (en) * | 1943-07-28 | 1947-06-10 | Rca Corp | Antenna system |
| US2818553A (en) * | 1953-08-25 | 1957-12-31 | Polarad Electronics Corp | Vehicle guiding system |
-
1933
- 1933-12-16 US US702711A patent/US2038539A/en not_active Expired - Lifetime
-
1934
- 1934-12-17 GB GB36198/34A patent/GB434637A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2038539A (en) | 1936-04-28 |
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