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 apparatus

Info

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
Application number
GB19051/37A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
G Schaub Apparatebau GmbH
Original Assignee
G Schaub Apparatebau GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by G Schaub Apparatebau GmbH filed Critical G Schaub Apparatebau GmbH
Publication of GB491903A publication Critical patent/GB491903A/en
Expired legal-status Critical Current

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.
GB19051/37A 1936-07-09 1937-07-08 Improvements in or relating to circuit arrangements for suppressing undesired frequencies in wireless receiving apparatus Expired GB491903A (en)

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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
FR824119A (en) 1938-02-01

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