GB1478895A - Radiating line communication systems - Google Patents
Radiating line communication systemsInfo
- Publication number
- GB1478895A GB1478895A GB32376/74A GB3237674A GB1478895A GB 1478895 A GB1478895 A GB 1478895A GB 32376/74 A GB32376/74 A GB 32376/74A GB 3237674 A GB3237674 A GB 3237674A GB 1478895 A GB1478895 A GB 1478895A
- Authority
- GB
- United Kingdom
- Prior art keywords
- line
- radiating
- line communication
- communication systems
- july
- 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
- 239000004020 conductor Substances 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/28—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium using the near field of leaky cables, e.g. of leaky coaxial cables
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
Abstract
1478895 Radiating line communication systems; repeaters BRITISH RAILWAYS BOARD 21 July 1975 [22 July 1974] 32376/74 Headings H4L and H4R A radiating line communication system has at least one amplifying system comprising a first length 30 of line directionally coupled to the main line 10, so as to pick up part of the signal and feed it to an amplifier 40, and a second length 33 of line similarly coupled, for feeding at least part of the amplified signal forward into the main line. Preferably the lengths 30, 33 of line are terminated by respective loads 31, 34. A two-way system may comprise amplifiers 40, 42 connected oppositely in parallel, hybrid circuits 37, 38, and band pass filters 39, 41 tuned to different frequency bands for the signals in each direction. Alternatively a two-way system may use a separate pair of first and second directionally coupled lengths of line for each direction, Fig. 6 (not shown), care being taken to avoid instability. Coupling to radiating lines, e.g. of either the parallel wire type, Fig. 4a (not shown), or the coaxial type in which the outer conductor is C-shaped in cross section, Fig. 4b (not shown), may be obtained without breaking into the line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB32376/74A GB1478895A (en) | 1975-07-21 | 1975-07-21 | Radiating line communication systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB32376/74A GB1478895A (en) | 1975-07-21 | 1975-07-21 | Radiating line communication systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1478895A true GB1478895A (en) | 1977-07-06 |
Family
ID=10337648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32376/74A Expired GB1478895A (en) | 1975-07-21 | 1975-07-21 | Radiating line communication systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1478895A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0079324A2 (en) * | 1981-11-06 | 1983-05-18 | Siemens Aktiengesellschaft Österreich | Wide band tunnel radio arrangement |
| EP0407226A2 (en) * | 1989-07-06 | 1991-01-09 | Hunting Engineering Limited | Leaky feeder transmission system |
| GB2328083A (en) * | 1997-06-26 | 1999-02-10 | Andrew Corp | A slotted array antenna for two-way communication with a stationary radiating cable |
| DE10191885B4 (en) * | 2000-05-05 | 2010-09-16 | Schleifring Und Apparatebau Gmbh | Device for broadband electrical signal transmission with bidirectional transmission path |
| CN103595458A (en) * | 2012-08-14 | 2014-02-19 | 西门子公司 | A communication device |
-
1975
- 1975-07-21 GB GB32376/74A patent/GB1478895A/en not_active Expired
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0079324A2 (en) * | 1981-11-06 | 1983-05-18 | Siemens Aktiengesellschaft Österreich | Wide band tunnel radio arrangement |
| EP0079324A3 (en) * | 1981-11-06 | 1984-07-25 | Siemens Aktiengesellschaft Osterreich | Wide band tunnel radio arrangement |
| EP0407226A2 (en) * | 1989-07-06 | 1991-01-09 | Hunting Engineering Limited | Leaky feeder transmission system |
| GB2235608A (en) * | 1989-07-06 | 1991-03-06 | Hunting Eng Ltd | Leaky feeder transmission line compensates for losses |
| EP0407226A3 (en) * | 1989-07-06 | 1992-08-05 | Hunting Engineering Limited | Leaky feeder transmission system |
| GB2328083A (en) * | 1997-06-26 | 1999-02-10 | Andrew Corp | A slotted array antenna for two-way communication with a stationary radiating cable |
| GB2328083B (en) * | 1997-06-26 | 2002-01-16 | Andrew Corp | Antenna for radiating cable to vehicle communication systems |
| DE10191885B4 (en) * | 2000-05-05 | 2010-09-16 | Schleifring Und Apparatebau Gmbh | Device for broadband electrical signal transmission with bidirectional transmission path |
| CN103595458A (en) * | 2012-08-14 | 2014-02-19 | 西门子公司 | A communication device |
| WO2014026985A1 (en) * | 2012-08-14 | 2014-02-20 | Siemens Aktiengesellschaft | Cable-based communication equipment |
| CN103595458B (en) * | 2012-08-14 | 2017-12-15 | 西门子公司 | A kind of communication equipment based on cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19950720 |