DE881963C - Receiving arrangement with blocking circuit - Google Patents

Receiving arrangement with blocking circuit

Info

Publication number
DE881963C
DE881963C DEL5629D DEL0005629D DE881963C DE 881963 C DE881963 C DE 881963C DE L5629 D DEL5629 D DE L5629D DE L0005629 D DEL0005629 D DE L0005629D DE 881963 C DE881963 C DE 881963C
Authority
DE
Germany
Prior art keywords
coil
blocking circuit
antenna
circuit
coupling
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
DEL5629D
Other languages
German (de)
Inventor
Walter Dr Kloepfer
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.)
Alcatel Lucent Deutschland AG
Original Assignee
Standard Elektrik Lorenz AG
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 Standard Elektrik Lorenz AG filed Critical Standard Elektrik Lorenz AG
Priority to DEL5629D priority Critical patent/DE881963C/en
Application granted granted Critical
Publication of DE881963C publication Critical patent/DE881963C/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

Description

Es ist in der drahtlosen Technik bekannt, am Empfänger Sperrkreise einzubauen, idie auf .die unerwünschte Welle abgestimmt sind. Diese Sperrkreise halten die ihrer Abstimmung entsprechende Welle vom Eingangskreis des Empfängers fern.It is known in the wireless art to have trap circuits on the receiver built in that are matched to the unwanted wave. These blocking circuits keep the wave corresponding to their vote from the input circuit of the receiver remote.

Die Erfindiung betrifft eine Empfangsanordnung mit Sperrkreis, beider die Sperrikreisspule induktiv mit einer in ider Antennenleitung liegenden Antennenspule gekoppelt ist und der Sperrkreiskondensator zur Unterdrückung der Spiegelfrequenz bei Superhetempfängern mit .den Abstimmkondensatoren gekuppelt ist.The invention relates to a receiving arrangement with a blocking circuit, both the blocking circuit coil inductive with an antenna coil lying in the antenna line is coupled and the blocking circuit capacitor to suppress the image frequency is coupled with the tuning capacitors in superhet receivers.

Die Erfindung besteht darin, daß .die Antennenspule eine für @diie Empfangswelle kleine Impedanz im Vergleich mit (der mit ihr in Reihe geschalteten Spule zur Kopplung mit dem auf die Empfangsfrequenz abgestimmten Parallelresonanzkreis dienenden Spule besitzt und daß' die Kopplung zwischen Antennenspule q. und der -Sperrkreisspule 2 möglichst fest ist.The invention consists in that .die antenna coil one for @diie Reception wave small impedance compared to (the one connected in series with it Coil for coupling with the parallel resonance circuit tuned to the receiving frequency serving coil and that 'the coupling between antenna coil q. and the Blocking circuit coil 2 is as tight as possible.

Das erste Merkmal bietet den Vorteil, daß die Nutzfrequenz, d. h. diejenige Frequenz, die man empfangen will, an der Koppelspule .des Sperrkreises nur einen verhältnismäßig kleinen Spannungsabfall hervorruft, so @daß nicht allzuviel Nutzenergie verlorengeht. Um nun trotzdem eine gute Sperrwirkung zu erzielen, wird gemäß dem zweiten Merkmal der Sperrkreis mit der Antennenkoppelspule möglichst fest gekoppelt. Eine derartige feste Kopplung kann beispielsweise :dadurch erzielt werden, --daß die eine Spule in die andere gewickelt wird, so daß der ganze Fluß, der von :der Antennenspuk herrührt, auch von -der Sperrkreisspule umfaßt wird. Ein Ausführungsbeispiel :der Erfindung-ist in der Zeichnung dargestellt. In dieser ist i die Antenne, 2 die Sperrkreisspule und 3 die Empfangsspule. Die Sperrkreisspule ist auf -einen Kern aufgewickelt, und zwischen den Windungen befindet sich eine Windung der Antennenspule q., mit welcher die Sperrkreisspule induktiv gekoppelt ist. Die Kopplung ist infolge der Ineinanderwicklung beider Spulen außerordentlich fest. Der Kern besteht aus Isoliermaterial und dient lediglich zur Versteifung der Wicklung. Die Empfangsspule 3 ist gemäß der weiteren Erfindung groß im Verhältnis zu der Antennenspule q..The first feature has the advantage that the useful frequency, i. H. the frequency that you want to receive at the coupling coil .des trapping circuit only causes a relatively small voltage drop, so @ that not too much Useful energy is lost. In order to still achieve a good blocking effect, is according to the second feature of the trap circuit with the antenna coupling coil as tight as possible coupled. Such a fixed coupling can be achieved, for example: --that one coil is wound in the other, so that all the flow flowing from : the antenna noise comes from, also from the blocking circuit coil is encompassed. An embodiment : the invention is shown in the drawing. In this i is the antenna, 2 the blocking circuit coil and 3 the receiving coil. The blocking circuit coil is on -one The core is wound, and there is one turn of the antenna coil between the turns q., with which the blocking circuit coil is inductively coupled. The coupling is as a result the intertwining of the two coils extremely tight. The core consists of Insulating material and only serves to stiffen the winding. The receiving coil According to the further invention, 3 is large in relation to the antenna coil q ..

Claims (1)

PATENTANSPRUCH: Empfangsanordnung mit Sperrkreis, bei der ,die Sperrkreisspule induktiv mit einer in -der Antennenleitung liegenden Antennenspule gekoppelt ist und der Sperrkreiskondensator zur Unterdrückung der Spiegelfrequenz. bei Superhetempfärigern mit den Abstimmkondensatoren gekuppelt ist, dadurch gekennzeichnet, daß die Antennenspule eine für ;die Empfangswelle kleine Impedanz im Vergleich mit der mit ihr in Reihe geschalteten Spule zur Kopplung mit dem auf die Empfangsfrequenz abgestimmten Parallelreson.anzkreis dienenden Spule besitzt und daß die Kopplung zwischen der Antennenspule (q.) und der Sperrkreisspule (2) möglichst fest ist. Angezogene Druckschriften: Britische Patentschrift Nr. 40 791.PATENT CLAIM: Receiving arrangement with blocking circuit in which, the blocking circuit coil is inductively coupled to an antenna coil lying in the antenna line and the trap circuit capacitor for suppressing the image frequency. in superheterodyne recipients is coupled to the tuning capacitors, characterized in that the antenna coil an impedance small for; the received wave in comparison with that in series with it switched coil for coupling with the parallel resonant circuit that is tuned to the receiving frequency serving coil and that the coupling between the antenna coil (q.) and the blocking circuit coil (2) is as tight as possible. Printed publications: British Patent No. 40,791.
DEL5629D 1937-11-22 1937-11-23 Receiving arrangement with blocking circuit Expired DE881963C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL5629D DE881963C (en) 1937-11-22 1937-11-23 Receiving arrangement with blocking circuit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE209051X 1937-11-22
DEL5629D DE881963C (en) 1937-11-22 1937-11-23 Receiving arrangement with blocking circuit

Publications (1)

Publication Number Publication Date
DE881963C true DE881963C (en) 1953-07-06

Family

ID=25760443

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL5629D Expired DE881963C (en) 1937-11-22 1937-11-23 Receiving arrangement with blocking circuit

Country Status (1)

Country Link
DE (1) DE881963C (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB410791A (en) * 1932-11-23 1934-05-23 Cole E K Ltd Improvements relating to radio receiving apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB410791A (en) * 1932-11-23 1934-05-23 Cole E K Ltd Improvements relating to radio receiving apparatus

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