DE1781050U - ANTENNA EQUIPPED WITH REFLECTOR, IN PARTICULAR VHF AND TV ANTENNA WITH CAPACITIVE ADAPTATION IN THE DIPOLE. - Google Patents

ANTENNA EQUIPPED WITH REFLECTOR, IN PARTICULAR VHF AND TV ANTENNA WITH CAPACITIVE ADAPTATION IN THE DIPOLE.

Info

Publication number
DE1781050U
DE1781050U DEF13166U DEF0013166U DE1781050U DE 1781050 U DE1781050 U DE 1781050U DE F13166 U DEF13166 U DE F13166U DE F0013166 U DEF0013166 U DE F0013166U DE 1781050 U DE1781050 U DE 1781050U
Authority
DE
Germany
Prior art keywords
antenna
dipole
reflector
capacitive
vhf
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
DEF13166U
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.)
FUBA FABRIKATION FUNKTECHNISCH
Original Assignee
FUBA FABRIKATION FUNKTECHNISCH
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 FUBA FABRIKATION FUNKTECHNISCH filed Critical FUBA FABRIKATION FUNKTECHNISCH
Priority to DEF13166U priority Critical patent/DE1781050U/en
Publication of DE1781050U publication Critical patent/DE1781050U/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • H01Q21/26—Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H01Q21/062—Two dimensional planar arrays using dipole aerials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
    • H01Q9/285—Planar dipole

Landscapes

  • Details Of Aerials (AREA)

Description

MitReflektor ausgerüstete Antennetinsbesondere UKW- undFernsehrantenne mit kapazitiver Anpassung im Dipol't Die Neuerung bezieht sich auf eine mit Reflektor ausgerüstete Antenne, insbesondere UKW- und Fernsehantenne mit kapazitiver Anpassung im Dipol. Antenna equipped with reflector, especially VHF and TV antenna with capacitive adjustment in the dipole The innovation relates to an antenna equipped with a reflector, in particular VHF and television antenna with capacitive adjustment in the dipole.

Zur Erreichung des normalerweise üblichen Wertes von 240 Ohm ist es bekannt, Faltdipole zu verbanden. Gleichfalls bekannt ist die Verwendung einer T-Anpassung. Üblich ist auch die Verwendung einer Induktivität im Fußpunkt bei gleichzeitiger Verkürzung des Dipole, wobei sich nachteilig eine Verminderung der Leistungsaufnahme ergibt. To achieve the normally usual value of 240 ohms is it is known to connect folding dipoles. It is also known to use a T adjustment. It is also common to use an inductance in the base point at the same time Shortening of the dipole, which is disadvantageous in terms of a reduction in power consumption results.

Diese bekannten Vorrichtungen befriedigen aber nicht im gewünschten Maße ; u. a. auch deswegen nicht, uell bei. However, these known devices are not as satisfactory as desired Dimensions ; i.a. also not because of that, uell at.

Antennen mit mehrereh Elementen bei zu großer Länge des Dipole das Vor-Rück-Verhältnis und der horizontale Öffnungswinkel ungüstige Werte annehmen.Antennas with several elements if the length of the dipole is too great The front-to-back ratio and the horizontal opening angle assume unfavorable values.

Eine wesentliche Verbesserung wird nach der Neuerung dadurch erzielt, daß die kapazitive Anpassung durch einen Kondensator erfolgt, und die in dieser Weise infolge Änderung der elektrischen Länge des Elementes bewirkten unerwünschten Werte des Vor-Rück-Verhältnisses und des horizontalen öffnungswinkels durch Umbiegen der Dipolenden unter Beibehaltung der elektrischen lunge beseitigt sind. Auf diese Weise können ohne Leistungsverlust die Elementenlänge, das Vor-Rück-Verhältnis und der horizontale Öffnungswinkel in den gewünschten Größenordnungen gehalten werden. Eine unerwünscht große Dipollänge ist nicht mehr erforderlich. A significant improvement is achieved after the innovation, that the capacitive adjustment is carried out by a capacitor, and that in this Way due to change in the electrical length of the element caused undesirable Values of the front-to-back ratio and the horizontal opening angle by bending the dipole ends are eliminated while maintaining the electrical lung. To this In this way, the element length, the front-to-back ratio and the horizontal opening angle can be kept in the desired order of magnitude. An undesirably long dipole length is no longer necessary.

In der Zeichnung ist eine Ausführungsform der Neuerung als Beispiel dargestellt. In the drawing is an embodiment of the innovation as an example shown.

Im Antennenträger 1 befindet sich der Dipol 2 mit den umgebogenen Enden 3. Weiter ist der Kondensator 4 angeordnet. Die Enden 3 des Dipols 2 können. wie auf der Zeichnung dargestellt, in gleicher Richtung abgebogen sein. Es ist aber auch möglich,sie nach verschiedenen Richtungen oder in verschiedenen Ebenen in entsprechender und geeigneter Weise abzubiegen. Schutzanspruch 1. eflektor ausgerüstete Antenne, insbesondere UKW-und Fernsehantenne mit kapazitiver Anpassung im Dipol, dadurch gekennzeichnet, daß die kapazitive Anpassung durch einen Kondensator erfolgte und die in dieser Weise infolge Änderung der elektrischen Länge des Elementes bewirkten unerwünschten Werte des Vor-Rückverhältnisses und des horizontalen Öffnungswinkels durch Umbiegen der Dipolenden unter Beibehaltung der elektrischen Länge beseitigt sind.The dipole 2 with the bent ends 3 is located in the antenna carrier 1. The capacitor 4 is also arranged. The ends 3 of the dipole 2 can. be bent in the same direction as shown in the drawing. But it is also possible to move them in different directions or in different planes in a more appropriate and appropriate manner Way to turn. Claim to protection 1. eflector-equipped antenna, in particular VHF and TV antenna with capacitive adjustment in the dipole, characterized in that the capacitive adjustment was carried out by a capacitor and the undesired values of the front-back ratio and the horizontal opening angle caused in this way as a result of changing the electrical length of the element are eliminated by bending the dipole ends while maintaining the electrical length.

Claims (1)

2. Antenne nach Anspruch 1."dadurch gekennzeichnet, daß die nden (3) des Dipols (2) gleichgerichtet umgebogen sind. 2. Antenna according to claim 1. "characterized in that the ends (3) of the dipole (2) are bent in the same direction. 3. Antenne nach Anspruch 1, dadurch kgeennzeichnet, daß die Enden (3) des Dipole (2) in verschiedenen Richtungen und/oder in verschiedenen Ebenen umgebogen sind. 3. Antenna according to claim 1, characterized in that the ends (3) of the dipoles (2) in different directions and / or in different planes are bent.
DEF13166U 1957-05-17 1957-05-17 ANTENNA EQUIPPED WITH REFLECTOR, IN PARTICULAR VHF AND TV ANTENNA WITH CAPACITIVE ADAPTATION IN THE DIPOLE. Expired DE1781050U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF13166U DE1781050U (en) 1957-05-17 1957-05-17 ANTENNA EQUIPPED WITH REFLECTOR, IN PARTICULAR VHF AND TV ANTENNA WITH CAPACITIVE ADAPTATION IN THE DIPOLE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF13166U DE1781050U (en) 1957-05-17 1957-05-17 ANTENNA EQUIPPED WITH REFLECTOR, IN PARTICULAR VHF AND TV ANTENNA WITH CAPACITIVE ADAPTATION IN THE DIPOLE.

Publications (1)

Publication Number Publication Date
DE1781050U true DE1781050U (en) 1959-01-15

Family

ID=32858539

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF13166U Expired DE1781050U (en) 1957-05-17 1957-05-17 ANTENNA EQUIPPED WITH REFLECTOR, IN PARTICULAR VHF AND TV ANTENNA WITH CAPACITIVE ADAPTATION IN THE DIPOLE.

Country Status (1)

Country Link
DE (1) DE1781050U (en)

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