GB488912A - Improvements in or relating to networks for interconnecting a two-wire transmission line with a frequency source - Google Patents
Improvements in or relating to networks for interconnecting a two-wire transmission line with a frequency sourceInfo
- Publication number
- GB488912A GB488912A GB31890/37A GB3189037A GB488912A GB 488912 A GB488912 A GB 488912A GB 31890/37 A GB31890/37 A GB 31890/37A GB 3189037 A GB3189037 A GB 3189037A GB 488912 A GB488912 A GB 488912A
- Authority
- GB
- United Kingdom
- Prior art keywords
- networks
- transmission line
- wire transmission
- interconnecting
- relating
- 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
- 230000005540 biological transmission Effects 0.000 title abstract 2
- 230000011664 signaling Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H2/00—Networks using elements or techniques not provided for in groups H03H3/00 - H03H21/00
- H03H2/005—Coupling circuits between transmission lines or antennas and transmitters, receivers or amplifiers
- H03H2/006—Transmitter or amplifier output circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/42—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns
Landscapes
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Radio Transmission System (AREA)
Abstract
488,912. Impedance networks ; wireless signalling. STANDARD TELEPHONES & CABLES, Ltd. Nov. 19, 1937, No. 31890. Convention date, Nov. 19, 1936. [Classes 40 (iii) and 40 (v)] Impedance networks as shown in Figs. 1, 2, 3 and 4 are used to connect a two-wire transmission line X, Y to a source of high frequency currents Z so as to ensure equal and opposite currents in the wires X, Y. The impedances A, B are equal, while the impedance C is half that of A or B at the frequency at which balance is required. The invention is specifically applied to connecting a transmitting or receiving aerial to a transmitter or receiver over a line.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US111643A US2165086A (en) | 1936-11-19 | 1936-11-19 | Matching network |
Publications (1)
Publication Number | Publication Date |
---|---|
GB488912A true GB488912A (en) | 1938-07-15 |
Family
ID=22339648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB31890/37A Expired GB488912A (en) | 1936-11-19 | 1937-11-19 | Improvements in or relating to networks for interconnecting a two-wire transmission line with a frequency source |
Country Status (5)
Country | Link |
---|---|
US (2) | US2165086A (en) |
DE (1) | DE755593C (en) |
FR (1) | FR829299A (en) |
GB (1) | GB488912A (en) |
NL (1) | NL51737C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2119194A (en) * | 1982-02-26 | 1983-11-09 | Develcon Electronics Ltd | Coupling an electric signal to transmission lines |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2871306A (en) * | 1957-10-15 | 1959-01-27 | Philco Corp | Input coupling circuit |
NL236775A (en) * | 1958-03-05 | |||
US3360731A (en) * | 1963-12-03 | 1967-12-26 | Ben H Tongue | Balanced-to-unbalanced impedance matching transformer circuit incorporating lumped reactance of its binding posts |
FR2549314B1 (en) * | 1983-07-12 | 1985-11-08 | Thomson Csf | QUADRUPOLE OF ADAPTATION, INDEPENDENT OF THE OPERATING FREQUENCY, OF A REACTANCE, AND PROGRESSIVE WAVE AMPLIFIER USING SUCH A QUADRUPOLE |
US5412355A (en) * | 1993-12-03 | 1995-05-02 | Philips Electronics North America Corporation | Resonant balun with arbitrary impedance |
EP1505728A3 (en) | 2002-03-15 | 2011-12-07 | Panasonic Corporation | Balanced high-frequency device and balance characteristics improving method and balanced high-frequency circuit using the same |
US7224240B2 (en) * | 2002-03-15 | 2007-05-29 | Matsushita Electric Industrial Co., Ltd. | Balanced high-frequency filter, antenna duplexer, balanced high-frequency circuit and communication apparatus |
WO2012072969A1 (en) * | 2010-11-29 | 2012-06-07 | The University Of Birmingham | Balanced antenna system |
-
0
- NL NL51737D patent/NL51737C/xx active
- US US22993D patent/USRE22993E/en not_active Expired
-
1936
- 1936-11-19 US US111643A patent/US2165086A/en not_active Expired - Lifetime
-
1937
- 1937-11-16 FR FR829299D patent/FR829299A/en not_active Expired
- 1937-11-19 GB GB31890/37A patent/GB488912A/en not_active Expired
- 1937-11-19 DE DEI59650D patent/DE755593C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2119194A (en) * | 1982-02-26 | 1983-11-09 | Develcon Electronics Ltd | Coupling an electric signal to transmission lines |
Also Published As
Publication number | Publication date |
---|---|
FR829299A (en) | 1938-06-17 |
USRE22993E (en) | 1948-04-20 |
NL51737C (en) | |
US2165086A (en) | 1939-07-04 |
DE755593C (en) | 1953-08-03 |
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