GB534176A - Modifying networks for the transmission of high frequency currents - Google Patents
Modifying networks for the transmission of high frequency currentsInfo
- Publication number
- GB534176A GB534176A GB468/40A GB46840A GB534176A GB 534176 A GB534176 A GB 534176A GB 468/40 A GB468/40 A GB 468/40A GB 46840 A GB46840 A GB 46840A GB 534176 A GB534176 A GB 534176A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lengths
- short
- circuited
- frequency
- transmission
- 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
Classifications
-
- 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
- H03H7/01—Frequency selective two-port networks
- H03H7/0123—Frequency selective two-port networks comprising distributed impedance elements together with lumped impedance elements
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
534,176. Impedance networks. STANDARD TELEPHONES & CABLES, Ltd. Jan. 9, 1940, No. 468. Convention date, Feb. 10, 1939. [Class 40 (iii) ] Longitudinal currents of a particular frequency, and also in some cases of the second harmonic of that frequency, in a high-frequency transmission line are eliminated by bridging the line at spaced points by short-circuited (2n-1) #/4 lengths of line connected together at their short-circuited ends (where is the working wave length), the spacing being such that the arrangement acts as a sum and/or difference filter at the frequencies to be eliminated, i.e. that O2-O1=180 degrees or 01+02=360 degrees where O1 is the length of the transmission line between the po:ints of connection of the short-circuited lengths and 02 is the sum of the lengths of the short-circuited lengths and the conductor (if any) by which they are connected together. Specification 491,359 is referred to. The arrangement may take any of the forms shown in the figures.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US255590A US2248751A (en) | 1939-02-10 | 1939-02-10 | Transmission modifying network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB534176A true GB534176A (en) | 1941-02-28 |
Family
ID=22969005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB468/40A Expired GB534176A (en) | 1939-02-10 | 1940-01-09 | Modifying networks for the transmission of high frequency currents |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2248751A (en) |
| FR (1) | FR863262A (en) |
| GB (1) | GB534176A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2435618A (en) * | 1944-07-05 | 1948-02-10 | Raytheon Mfg Co | Coaxial transmission line |
| US2474277A (en) * | 1945-03-19 | 1949-06-28 | Standard Telephones Cables Ltd | Transmission line |
| US2708238A (en) * | 1954-04-09 | 1955-05-10 | Silverman Emanuel | Television wave trap and the like |
| US3747030A (en) * | 1971-06-07 | 1973-07-17 | Oak Electro Netics Corp | Band pass filter with transmission line section |
| FR2510326A1 (en) * | 1981-07-24 | 1983-01-28 | Thomson Csf | LINEAR RESONATOR PASSER FILTER OPEN TO THEIR TWO ENDS |
-
1939
- 1939-02-10 US US255590A patent/US2248751A/en not_active Expired - Lifetime
-
1940
- 1940-01-09 GB GB468/40A patent/GB534176A/en not_active Expired
- 1940-02-03 FR FR863262D patent/FR863262A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR863262A (en) | 1941-03-28 |
| US2248751A (en) | 1941-07-08 |
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