DE444195C - Receiving arrangement for location and direction determination by means of a frame coil - Google Patents

Receiving arrangement for location and direction determination by means of a frame coil

Info

Publication number
DE444195C
DE444195C DEG53547D DEG0053547D DE444195C DE 444195 C DE444195 C DE 444195C DE G53547 D DEG53547 D DE G53547D DE G0053547 D DEG0053547 D DE G0053547D DE 444195 C DE444195 C DE 444195C
Authority
DE
Germany
Prior art keywords
receiving arrangement
location
direction determination
frame
frame coil
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
DEG53547D
Other languages
German (de)
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.)
Telefunken AG
Original Assignee
Telefunken 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 Telefunken AG filed Critical Telefunken AG
Priority to DEG53547D priority Critical patent/DE444195C/en
Application granted granted Critical
Publication of DE444195C publication Critical patent/DE444195C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/04Details
    • G01S3/06Means for increasing effective directivity, e.g. by combining signals having differently oriented directivity characteristics or by sharpening the envelope waveform of the signal derived from a rotating or oscillating beam antenna
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/04Details
    • G01S3/06Means for increasing effective directivity, e.g. by combining signals having differently oriented directivity characteristics or by sharpening the envelope waveform of the signal derived from a rotating or oscillating beam antenna
    • G01S3/065Means for increasing effective directivity, e.g. by combining signals having differently oriented directivity characteristics or by sharpening the envelope waveform of the signal derived from a rotating or oscillating beam antenna by using non-directional aerial

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Description

Empfangsanordnung für Orts- und Richtungsbestimmung mittels Rahmenspule. Die Erfindung betrifft eine Anordnung für Rahmenempfänger, die es ermöglicht, die Richtung der Sendestation sehr scharf zu bestimmen. Bei. den bekannten Anordnungen zum Peilen hat es sich in der Praxis gezeigt, daß häufig Mißweisungen entstehen. Die Ursachen der Mißweisungen sind sehr verschiedener Art. Sie können mm Teil auf konstante lokale Ursachen zurückgeführt werden, auf Reflexionen der elektromagnetischen Wellen, auf umerwünschte Kopplungen der einzelnen. Teile unter sich oder mit der Umgebung usw.Receiving arrangement for location and direction determination by means of a frame coil. The invention relates to an arrangement for frame receivers that enables the Determine the direction of the transmitting station very clearly. At. the known arrangements For direction finding, it has been shown in practice that misdirections often arise. The causes of the misalignments are of very different kinds. They can mm part on constant local causes can be traced back to reflections of the electromagnetic Waves, on undesired couplings of the individual. Share among yourself or with the Environment etc.

Ein Teil der störenden Einflüsse wird dacinxch düniniezt, daß zur Aufnahme der Schwingung in bekannter Weise nur ein Wicklungssystem mit einem Schwingungskreis verwendet und: alle Kopplungen mit den Detektoren oder Röhren und die Rückkopplung über Kapazitäten hergestellt werden. Dadurch wird die induktive Beeinflussung, die be1 den bisher gewöhnlich verwendeten Richtempfängern zwischen den verschiedenen Spulen. der Empfangseinrichtung bestand, vermieden, denn, wie bereits erwähnt, entstehen durch solche unerwünschten Kopplungen Zusatz, spannengen, die phasenverschobene, zusätzliche Ströme im Empfangsapparat hervorrufen können, wodurch die Richtungscharakteristik des Empfängers verzerrt wird. Eine weitere bekannte Ursache der Verzerrume# der Richtungscharakteristik besteht darin, da.ß der Empfangsrahmen infolge unsymmetrisch verteilter Teilkapazitäten gegen Erde zusätzliche Aufladumgen ödes Abstimmkondensators erfährt. Um nun die Symmetrie der Anordnung gegen Erde herstellen zu können, bat man bereits vorgeschlagen, Kapazitäten an verschiedenen Stellen zuzuschalten. Es ist aber schwierig, dabei die Bemessung der Zusatzkapazitäten richtig zu treffen. Außerdem sind die zusätzlichen Rufladungen durch die hier in Betracht kommenden Einflüsse nicht konstant. Erfindungsgemäß wird eine kleine Hilfsantenne über einen variablen. Kondensator mit dem Rahmenkreis gekoppelt. Durch entsprechende Einstellung dieser Kapazität läßt sich die erforderliche Symmetriebedingung des Rahmens jederzeit leicht herstellen.Part of the disturbing influences is dacinxch that the Absorption of the oscillation in a known way is only one winding system with one oscillation circuit used and: all couplings with the detectors or tubes and the feedback are produced over capacities. This removes the inductive influence that be1 the directional receivers commonly used up to now between the different Wash. the receiving device existed, avoided because, as already mentioned, arise due to such undesired couplings, additional tension, the phase-shifted, can cause additional currents in the receiver, reducing the directional characteristics of the recipient is distorted. Another known cause of distortion # the Directional characteristic consists in the fact that the receiving frame is asymmetrical as a result distributed partial capacities against earth additional charging amounts of dull tuning capacitor learns. In order to be able to establish the symmetry of the arrangement with respect to earth, asked it has already been proposed to connect capacities at various points. It however, it is difficult to correctly measure the additional capacities. In addition, the additional call charges are due to the Influences not constant. According to the invention, a small auxiliary antenna is via a variables. Capacitor coupled to the frame circle. With the appropriate setting this capacity can be the required symmetry condition of the frame at any time easy to manufacture.

Ein Ausführungsbeispiel einer Schaltung nach der Erfindung ist in der Abbildung gegeben. i ist die .drehbare Rahmenantenne. Sie bildet zusammen nvt dem Kondensator a den einzigen auf die Empfangsschwingung abgestimmten Schwingungskreis, Die Mitte der Selbstinduktion i kann durch die Leitung 3 entweder :direkt geerdet, oder mit den Batterien Ader nachfolgenden Röhren verbunden, werden. Diese Batterien können auch durch eine Leitung q. :geerdet werden. 7, 8 und 9 sind Kathodenröhren- Davon ist 7 eine HochfrequenzveTstärkeTröhr.e, 8 eine Audionrähre und 9 eine Zwischenfrequenz- oder eine Niederfrequenzverstärkerröhre. Naturgemäß werden von jeder Verstärkungsart mehrere Röhren in Kaskadenschaltung Verwendung finden können. Ebenso kann gleichzeitig Zwischen- und Niederfrequenzverstärkung in Hintereinanderschaltung angewandt werden. Im letzteren Falle kann selbstverständlich auch sowohl bei der Zwischenfrequenz als bei der Niederfrequenz je eint lose Kopplung zur Störbefreiung eingeschaltet werden. Zur Regulierung der Rückkopplung dient der Kondensator i o. Im Anodenkreis der Röhre 8 ist ein abgestimmter Kreis, bestehend. aus der Kapazität i i und der Selbstinduktion 12, eingeschaltet. Dieser kann entweder auf eine Zwischenfrequenz oder eine Niederfrequenz abgestizmnt sein. In loser Kopplung dazu ist in den Gitterkreis der Röhre g ein Schwingungskreis i3,'tq. eingeschaltet, der auf die .gleiche Frequenz wie der Kreis i i, 1z abgestimmt sein muß. 5 stellt nun die kleine Hilfsantenne nach der Erfindung dar und 6 den variahlen Kondensator, durch den die Hilfsantenne an den Rahmenkreis angeschlossen ist.An embodiment of a circuit according to the invention is shown in FIG given the figure. i is the rotatable loop antenna. she forms together nvt the capacitor a the only one tuned to the received oscillation Oscillating circuit, the center of self-induction i can either through line 3 : directly earthed, or connected to the batteries with the following tubes. These batteries can also be supplied by a line q. : to be grounded. 7, 8 and 9 are Cathode tubes - 7 of them are high frequency power tubes, 8 are audio tubes and 9, an intermediate frequency or a low frequency amplifier tube. Naturally For each type of amplification, several tubes are used in cascade connection can find. Intermediate and low frequency amplification can also be used at the same time can be used in series connection. In the latter case, of course Also, both at the intermediate frequency and at the low frequency, each has a loose coupling can be switched on to eliminate interference. The is used to regulate the feedback Capacitor i o. In the anode circuit of the tube 8 is a tuned circuit, consisting. from the capacitance i i and the self-induction 12 switched on. This can either be tuned to an intermediate frequency or a low frequency. In loose coupling for this purpose there is an oscillation circuit i3, 'tq in the grid circle of the tube g. switched on, which must be tuned to the same frequency as the circle i i, 1z. 5 represents now the small auxiliary antenna according to the invention and 6 the variable capacitor, through which the auxiliary antenna is connected to the frame circle.

Claims (1)

PATENTANSPRÜCHE: i. Empfangsanordnung für Orts- und Richtungsbestimmung mittels Rahmenspule, wobei nur ein einziges abgestimmtes Hochfrequenzsystem mit der drehbaren Rahmenspule .als Selbstinduktion für die aufgenommenen Schwingungen verwendet wird, .dadurch gekennzeichnet, daß an den Rahmenkreis eine Hilfsantenne über einen variablen Kondensator angeschaltet ist. a. Empfangsanordnung nach Anspruch i, dadurch gekennzeichnet, daB zur Steigerung der Selektivität lose gekoppelte Kreise erst für Zwischen- oder Niederfrequenzen Verwendung finden. PATENT CLAIMS: i. Receiving arrangement for location and direction determination by means of a frame coil, whereby only a single coordinated high-frequency system with the rotatable frame coil is used as self-induction for the recorded vibrations, characterized in that an auxiliary antenna is connected to the frame circle via a variable capacitor. a. Receiving arrangement according to Claim i, characterized in that loosely coupled circuits are only used for intermediate or low frequencies in order to increase the selectivity.
DEG53547D 1921-04-08 1921-04-09 Receiving arrangement for location and direction determination by means of a frame coil Expired DE444195C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG53547D DE444195C (en) 1921-04-08 1921-04-09 Receiving arrangement for location and direction determination by means of a frame coil

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1598144X 1921-04-08
DEG53547D DE444195C (en) 1921-04-08 1921-04-09 Receiving arrangement for location and direction determination by means of a frame coil

Publications (1)

Publication Number Publication Date
DE444195C true DE444195C (en) 1927-05-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEG53547D Expired DE444195C (en) 1921-04-08 1921-04-09 Receiving arrangement for location and direction determination by means of a frame coil

Country Status (1)

Country Link
DE (1) DE444195C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755712C (en) * 1937-08-05 1953-06-29 Rudolf Dr-Ing Hell Arrangement for bearing with short and ultrashort waves

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755712C (en) * 1937-08-05 1953-06-29 Rudolf Dr-Ing Hell Arrangement for bearing with short and ultrashort waves

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