GB491903A - Improvements in or relating to circuit arrangements for suppressing undesired frequencies in wireless receiving apparatus - Google Patents
Improvements in or relating to circuit arrangements for suppressing undesired frequencies in wireless receiving apparatusInfo
- Publication number
- GB491903A GB491903A GB19051/37A GB1905137A GB491903A GB 491903 A GB491903 A GB 491903A GB 19051/37 A GB19051/37 A GB 19051/37A GB 1905137 A GB1905137 A GB 1905137A GB 491903 A GB491903 A GB 491903A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- receiving apparatus
- wireless receiving
- circuit arrangements
- inductance
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Noise Elimination (AREA)
Abstract
491,903. Impedance networks. SCHAUB APPARATEBAUGES., G. July 8, 1937, No. 19051. Convention date, July 9, 1936. [Class 40 (iii)] The effect of inherent resistance in a parallel tuned circuit L, C, is eliminated by a resistance R connected between earth and a tapping D on the inductance L. The operation of the circuit is shown with vector diagrams and the value for R evaluated for the general case when the inductance L is divided at D into portions L1 and L2. When L1=L2, R=L/4Cr where r is the inherent resistance of the inductance. If C is variable, its control may be ganged with that of R. The circuit is used for suppressing an undesired high-frequency signal.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE491903X | 1936-07-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB491903A true GB491903A (en) | 1938-09-12 |
Family
ID=6544330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB19051/37A Expired GB491903A (en) | 1936-07-09 | 1937-07-08 | Improvements in or relating to circuit arrangements for suppressing undesired frequencies in wireless receiving apparatus |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR824119A (en) |
GB (1) | GB491903A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE899683C (en) * | 1942-06-25 | 1953-12-14 | Oskar Vierling Dr | Suppression of jammers with frequency modulation |
-
1937
- 1937-07-07 FR FR824119D patent/FR824119A/en not_active Expired
- 1937-07-08 GB GB19051/37A patent/GB491903A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR824119A (en) | 1938-02-01 |
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