GB295693A - Improvements in or relating to wireless signalling - Google Patents
Improvements in or relating to wireless signallingInfo
- Publication number
- GB295693A GB295693A GB23652/28A GB2365228A GB295693A GB 295693 A GB295693 A GB 295693A GB 23652/28 A GB23652/28 A GB 23652/28A GB 2365228 A GB2365228 A GB 2365228A GB 295693 A GB295693 A GB 295693A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phase
- impedances
- fed
- generator
- source
- 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
- 230000011664 signaling Effects 0.000 title 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000005562 fading Methods 0.000 abstract 1
- 230000001939 inductive effect Effects 0.000 abstract 1
- 230000010287 polarization Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/10—Polarisation diversity; Directional diversity
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
295,693. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Hansell, C. W., and Lindenblad, N. E.). Aug. 17, 1927, [Convention date]. Phase, changing.-The plane of polarization of the energy emitted by a wireless transmitting station is varied to eliminate fading by feeding the aerials with polyphase power obtained from a single phase source by phase modifying impedances. The resistances forming part of the phase modifying impedances may be modulating valves T1, T2, T3, as shown in Fig. 11, in which a source of single phase potential G1 is applied to an inductance L1 from which potentials are taken through a capacitative lead C4 and an inductive lead L3 respectively. The grids of the valves T1, T2, T3 are fed in parallel from a generator ST and the output is fed to lines 11, 12, 13 through coupling coils L4 - - L9, which are tuned to resonance with the generator ST by means of condensers C5, C7, C9.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US295693XA | 1927-08-17 | 1927-08-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB295693A true GB295693A (en) | 1929-01-31 |
Family
ID=21849713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23652/28A Expired GB295693A (en) | 1927-08-17 | 1928-08-16 | Improvements in or relating to wireless signalling |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB295693A (en) |
-
1928
- 1928-08-16 GB GB23652/28A patent/GB295693A/en not_active Expired
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