DE493877C - Directional antenna, consisting of an even number of more than two individual wires arranged in one plane - Google Patents

Directional antenna, consisting of an even number of more than two individual wires arranged in one plane

Info

Publication number
DE493877C
DE493877C DET35688D DET0035688D DE493877C DE 493877 C DE493877 C DE 493877C DE T35688 D DET35688 D DE T35688D DE T0035688 D DET0035688 D DE T0035688D DE 493877 C DE493877 C DE 493877C
Authority
DE
Germany
Prior art keywords
directional antenna
antenna
plane
even number
individual wires
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
DET35688D
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.)
Publication date
Priority to DET35688D priority Critical patent/DE493877C/en
Application granted granted Critical
Publication of DE493877C publication Critical patent/DE493877C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/06Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/08Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
    • H01Q21/12Parallel arrangements of substantially straight elongated conductive units

Description

Richtantenne, bestehend aus einer geraden Anzahl von mehr als zwei in einer Ebene angeordneten Einzeldrähten Es sind Richtantennen bekannt, die aus vielen Einzeldrähten, Einzeloszillatoren, bestehen, die entweder vertikal oder horizontal in einer Ebene angeordnet sind. - Diese Antennen werden im allgemeinen so verwendet, .daß die Einzelantennen gleichphasig erregt werden, um :damit :eine scharfe Bündelung oder Strahlungsenergie in einer Richtung zu erzielen. Es ist aber auch .bekannt, rsolche Antennen so zu erregen, daß sie abwechselnd in periodischer Wiederholung in verschiedenen Phasen schwingen, um damit eine Richtwirkung in einer anderen Richtung zu erzielen. Die vorliegende Erfindung besteht nun darin, die Einzeldrähte einer solchen Richtantenne so zu erregen, daß die Ausstrahlung in zwei um einen bestimmten Winkel verschobenen Richtungen erfolgt. Die theoretische Berechnung zeigt, daß eine derartige Richtwirkung dadurch erzielt wird, wenn man :die eine Hälfte der Antennendrähte in einer Phase und die andere Hälfte in der entgegengesetzten Phase erregt.Directional antenna consisting of an even number greater than two Individual wires arranged in a plane Directional antennas are known which consist of Many single wires, single oscillators, are made up either vertically or horizontally are arranged in one plane. - These antennas are generally used to .that the individual antennas are excited in phase in order to: thus: a sharp bundling or to achieve radiant energy in one direction. But it is also known To excite such antennas in such a way that they alternate in periodic repetition vibrate in different phases in order to have a directivity in a different direction to achieve. The present invention now consists in the individual wires of a to excite such a directional antenna so that the radiation in two around a certain Angularly shifted directions takes place. The theoretical calculation shows that a such a directivity is achieved by: one half of the antenna wires excited in one phase and the other half in the opposite phase.

Ip Fig. i ist beispielsweise eine Richtantenne mit vertikalen Einzelantennen :dargestellt. Am Tragseil s, das zwischen den Masten in, n gespannt ist, hängen .die Einzeldrähte a. Würden sie gleichphasig erregt werden, dann würde die Hauptstrahlungsrichtung .senkrecht zur Ebene der Richtantenne liegen. Findet aber :die Erregung so statt, wie :das schematisch in Fig. 2,; dargestellt ist, nämlich Aderart, daß die Antennen al bis ca., in ;der :einen Phase, a., bis alo in der anderen Phase erregt sind, so erhält man zwei Ausstrahlungsrichtungen R1 und R" die einen Winkel a miteinander bilden. Wie aus der Berechnung ersichtlich, hängt :der Winkel, den @die beidjen Richtungen R1 und R= bilden, von der Breite bzw. :dem Abstan!de der einzelnen Antennenhälften ab und kann durch Wahl .der Dimensionierung verändert werden. Die Ausstrahlung in .den beiden Richtungen kann entweder einsseifig oder zweiseitig erfolgen. Um eine einseitige Richtwirkung zu haben, verwendet man in bekannter Weise einen Reflektor. Die Erregung der einzelnen Antennenhälften in verschiedener Phase wird zweckmäßig :dadurch bewirkt, daß die übertragungsleitungen zwischen dem Generator und der Antenne so bemessen sind, daß eine gegenphasige Erregung der beiden Antennenhälften erfolgt.Ip Fig. I is, for example, a directional antenna with vertical individual antennas : shown. Hang on the suspension cable s, which is stretched between the masts in, n .the single wires a. If they were excited in phase, then the main direction of radiation would be . lie perpendicular to the plane of the directional antenna. But if: the excitement takes place like: the schematic in Fig. 2; is shown, namely vein type that the antennas al to approx., in; the: one phase, a., until alo are excited in the other phase, so one obtains two emission directions R1 and R ″ which form an angle α with one another form. As can be seen from the calculation, depends: the angle that @the two Directions R1 and R = form, on the width or: the distance of the individual antenna halves and can be changed by choosing the dimensions. The broadcast in The two directions can either be one-sided or two-sided. To a To have unilateral directivity, a reflector is used in a known manner. The excitation of the individual halves of the antenna in different phases is expedient : thereby causes the transmission lines between the generator and the antenna are dimensioned in such a way that the two halves of the antenna are excited in phase opposition.

Claims (3)

PATENTAI-SPRÜCHE: i. Richtantenne, bestehend aus einer geraden Anzahl von mehr als zwei in einer Ebene :angeordneten Einzeldrähten, insbesondere für kurze Wellen, dadurch gekennzeichnet, daß die Hälfte der Antennendrähte in Gegenphase zur anderen Hälfte schwingt und daß die in gleicher Phase schwingenden Antennendrähte nebeneinander angeordnet sind. PATENTAI LANGUAGES: i. Directional antenna, consisting of an even number of more than two individual wires arranged in one level, especially for short ones Waves, characterized in that half of the antenna wires are in antiphase oscillates to the other half and that the antenna wires oscillating in the same phase are arranged side by side. 2. Richtantenne nach Anspruch i, .dadurch gekennzeichnet, daß die Zuführungsleitungen, welche :den Generator mit der Antenne verbinden, so bemessen sind, daß :sie (die richtige Phasenverschiebung bewirken. 2. Directional antenna according to claim i, characterized. that the feed lines, which: connect the generator with the antenna, so are dimensioned that: they (bring about the correct phase shift. 3. Richtantenne nach Anspruch i, :dadurch gekennzeichnet, (d.aß ein Reflektor angeordnet ist.3. Directional antenna according to claim i, characterized in that a reflector is arranged.
DET35688D 1928-09-14 Directional antenna, consisting of an even number of more than two individual wires arranged in one plane Expired DE493877C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET35688D DE493877C (en) 1928-09-14 Directional antenna, consisting of an even number of more than two individual wires arranged in one plane

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DET35688D DE493877C (en) 1928-09-14 Directional antenna, consisting of an even number of more than two individual wires arranged in one plane
DE679529X 1928-09-14

Publications (1)

Publication Number Publication Date
DE493877C true DE493877C (en) 1930-03-12

Family

ID=25946104

Family Applications (1)

Application Number Title Priority Date Filing Date
DET35688D Expired DE493877C (en) 1928-09-14 Directional antenna, consisting of an even number of more than two individual wires arranged in one plane

Country Status (1)

Country Link
DE (1) DE493877C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755783C (en) * 1934-01-27 1953-04-16 Marconi Wireless Telegraph Co Antenna arrangement for defining a landing line for aircraft
DE754630C (en) * 1934-01-27 1953-06-08 Marconi Wireless Telegraph Co Device for the alternating release and blocking of energy transmission on a high-frequency line

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755783C (en) * 1934-01-27 1953-04-16 Marconi Wireless Telegraph Co Antenna arrangement for defining a landing line for aircraft
DE754630C (en) * 1934-01-27 1953-06-08 Marconi Wireless Telegraph Co Device for the alternating release and blocking of energy transmission on a high-frequency line

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