DE551695C - Shortwave radiators - Google Patents

Shortwave radiators

Info

Publication number
DE551695C
DE551695C DER82188D DER0082188D DE551695C DE 551695 C DE551695 C DE 551695C DE R82188 D DER82188 D DE R82188D DE R0082188 D DER0082188 D DE R0082188D DE 551695 C DE551695 C DE 551695C
Authority
DE
Germany
Prior art keywords
reflector
radiators
shortwave
short
loops
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
DER82188D
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.)
RCA Corp
Original Assignee
RCA Corp
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 DER82188D priority Critical patent/DE551695C/en
Priority claimed from US469415A external-priority patent/US1874983A/en
Application granted granted Critical
Publication of DE551695C publication Critical patent/DE551695C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
    • H01Q19/17—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source comprising two or more radiating elements
    • H01Q19/175—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source comprising two or more radiating elements arrayed along the focal line of a cylindrical focusing surface

Landscapes

  • Aerials With Secondary Devices (AREA)

Description

Kurzwellenstrahler Die Erfindung betrifft einen Kurzwellenstrahler, insbesondere für Ultrakurzwellen.Short-wave radiator The invention relates to a short-wave radiator, especially for ultra-short waves.

Parabolische Reflekto: eil in Kombination mit Antennen sind schon benutzt worden, insbesondere auch die Kombination einer linearen Antenne finit einem Reflektor, bei welcher die Strahlung längs abwechselnden, eine halbe Wellenlänge langen Teilen der linearen Leitung unterdrückt wird, so daß die arbeitenden Teile der Leitung Ströme gleicher Phase führen.Parabolic Reflekto: speed in combination with antennas are nice has been used, in particular the combination of a linear antenna finite one Reflector in which the radiation alternates lengthways, half a wavelength long parts of the linear line is suppressed so that the working parts conduct currents of the same phase in the line.

Die Erfindung besteht in einer einfachen Anordnung zur Lagerung (IesAntennenleiters innerhalb des Reflektors.The invention consists in a simple arrangement for storage (IesAntennenleiter inside the reflector.

Die Erfindung ist auf der Zeichnung in einer Figur dargestellt.The invention is shown in the drawing in a figure.

Innerhalb des Reflektors 2 befindet sich die Antennenleitung 4, die U-förmige Schleifen 6 in abwechselnden halben Wellenlängen enthält.Inside the reflector 2 is the antenna line 4, which Contains U-shaped loops 6 in alternating half wavelengths.

Die zu der Längsachse des Reflektors parallelen Teile 8 der Leitung bilden die aktiven Teile der Antenne für das Senden oder Empfangen elektromagnetischer Wellen; sie führen gleichphasigen Strom, da sie abwechselnde halbe Wellenlängen der Leitung 4 bilden.The parts 8 of the line which are parallel to the longitudinal axis of the reflector form the active parts of the antenna for transmitting or receiving electromagnetic Waves; they carry in-phase electricity because they are alternating half wavelengths the line 4 form.

Die Schleifen ti sind bezüglich elektromagnetischer Wellen nicht aktiv. Die Ankopplung des Leiters 4 zu einem Empfänger oder Sender 12 erfolgt durch eine Zwischenschleife to. Die räumliche Befestigung einer derartigen Antenne bereitet Schwierigkeiten, da die Halterungsglieder bei Ultrakurzwellen Störungen geben können.The loops ti are not active with respect to electromagnetic waves. The coupling of the conductor 4 to a receiver or transmitter 12 takes place through a Intermediate loop to. The spatial mounting of such an antenna prepares Difficulties, since the support members can give interference in the case of ultra-short waves.

Gemäß der Erfindung werden die Schwierigkeiten dadurch beseitigt, daß die Halerung des Drahtes 4 in dem Reflektor unmittelbar durch die abgebogenen Schleifen 6 selbst erfolgt, die durch Isolatoren 14 gesteckt sind. Wenngleich die aktiven Teile des Strahlers 4 theoretisch eine viertel Wellenlänge von dem Reflektor entfernt angeordnet sein sollen, kommt es auf diesen Abstand nicht so genau an; nötig ist nur, daß die Strahler 8 möglichst genau im Brennpunkt des Reflektors liegen.According to the invention, the difficulties are eliminated by that the Halerung of the wire 4 in the reflector directly through the bent Loops 6 itself takes place, which are inserted through insulators 14. Although the active parts of the radiator 4 theoretically a quarter wavelength from the reflector are to be arranged remotely, this distance does not matter so precisely; It is only necessary that the radiators 8 are as precisely as possible in the focal point of the reflector.

Claims (1)

PATENTANSPRUCH: Kurzwellenstrahler, insbesondere für Ultrakurzwellen, bestehend aus einem Leiter (4), der mehrere Wellenlängen lang ist und U-förmige Schleifen (6) von halber Wellenlänge in Abständen von halben Wellenlängen besitzt, in einem parabolischen Reflektor, dadurch gekennzeichnet, daß der Leiter (4) unmittelbar durch seine Schleifen (6) an dem Reflektor (2) isoliert getragen wird.PATENT CLAIM: Short-wave radiators, especially for ultra-short waves, consisting of a conductor (4) that is several wavelengths long and U-shaped Has loops (6) of half wavelength at intervals of half wavelengths, in a parabolic reflector, characterized in that the conductor (4) directly is worn isolated by its loops (6) on the reflector (2).
DER82188D 1930-07-21 Shortwave radiators Expired DE551695C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER82188D DE551695C (en) 1930-07-21 Shortwave radiators

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DER82188D DE551695C (en) 1930-07-21 Shortwave radiators
US469415A US1874983A (en) 1930-07-21 1930-07-21 Ultra short wave antenna system

Publications (1)

Publication Number Publication Date
DE551695C true DE551695C (en) 1932-06-03

Family

ID=25992405

Family Applications (1)

Application Number Title Priority Date Filing Date
DER82188D Expired DE551695C (en) 1930-07-21 Shortwave radiators

Country Status (1)

Country Link
DE (1) DE551695C (en)

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