EP1384287B1 - Device for exciting a centrally focused reflector antenna - Google Patents

Device for exciting a centrally focused reflector antenna Download PDF

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Publication number
EP1384287B1
EP1384287B1 EP02735053A EP02735053A EP1384287B1 EP 1384287 B1 EP1384287 B1 EP 1384287B1 EP 02735053 A EP02735053 A EP 02735053A EP 02735053 A EP02735053 A EP 02735053A EP 1384287 B1 EP1384287 B1 EP 1384287B1
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EP
European Patent Office
Prior art keywords
dielectric
arrangement
waveguide
field transformer
reflector
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EP02735053A
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German (de)
French (fr)
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EP1384287A1 (en
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Frank E. Wötzel
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • 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
    • H01Q19/13—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 being a single radiating element, e.g. a dipole, a slot, a waveguide termination
    • 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

Definitions

  • the invention relates to an arrangement for exciting a centrally focused reflector antenna.
  • the application of the arrangement extends to the areas of aging Communication technology for stationary, portable and mobile transceiver systems high-frequency electromagnetic radiation sources, especially of geostationary and orbiting satellite systems at landund mobile sources as well as point-to-point radio relay transmission or the point-to-multipoint radio relay transmission of security, radar and non-contact sensor technology.
  • Known arrangements for excitation of a centrally focused reflector antenna system use either a grooved horn or a flat-widened waveguide section as the excitation system at the waveguide end.
  • the excitation system is arranged in the focal point, the phase center, the reflector antenna and is intended to illuminate it optimally. Of particular importance is the largely uniform illumination of the reflector with uniform phase assignment.
  • Known arrangements for the purpose of excitation of a reflector antenna system and its beam swiveling use an excitation system in the focal point of the reflector antenna or in the vicinity of the focal point arranged excitation system, which consists of discrete single radiators (ARRAY) or a combination of such an array, which is excited by another system becomes.
  • ARRAY discrete single radiators
  • the required sealing is due to the structural conditions of the waveguide system against environmental influences only by additional and to achieve complex components, which may be the Functionality of the excitation system can also affect.
  • the known excitation systems with non-reactive Subsequent modules, for example down-converters can be combined. That means there are generally additional expenses for optimal Adaptation of such a known excitation system to the subsequent assembly the associated costs required.
  • the object of the invention is therefore to provide an inexpensive arrangement field-optimized and broadband excitation of centrally focused reflector antennas in their focus, the phase center, with simultaneous non-reactive Connection with subsequent assemblies and improved environmental sealing of the Provide waveguide and adaptation of the excitation system to the respective To ensure reflector geometry (F / D ratio) and thus the Design of the radiation diagram with the functionality of changing the Field distribution at the waveguide end specific to the reflector system of the shape above to influence that no retroactive effect in the Hohiletter and thus on the Follower assembly is caused.
  • the arrangement according to the invention has the particular advantage that that field-optimized and broadband excitation is more centrally focused Reflector antennas in their focal point is guaranteed by the dielectric field transformers are not mechanically moved Components required.
  • the overall arrangement is highly mechanical Precision can be manufactured inexpensively with little effort and points beyond also a high tolerance towards different Environmental conditions such as temperature, humidity and aggressive media.
  • the arrangement of a dielectric carrier in the vicinity of the dielectric field transformer and the Arrangement of passive, easy to control spotlight components on the dielectric carrier a loss and field-optimal change in the broadband Excitation field of the field transformer possible without mechanical moving components are required and without the dielectric support must be mechanically connected to the field transformer.
  • the arrangement according to the invention consists of a butt-terminating waveguide 1, which is terminated on one side with a dielectric field transformer 2, which partially protrudes into the waveguide 2 and whose geometry is based on the reflector system used. -corresponds or is adapted to this.
  • the waveguide 1 has at its other end a mounting platform 3 for subsequent assemblies 8.
  • the dielectric field transformer 2 influences the E components of the alternating electromagnetic field in the direction of propagation in such a way that the original wave field at the other end of the waveguide 1 is deformed in such a way that a uniform, in particular circular expansion of the resulting radiation field of the waveguide 1 and a selectable power distribution on the reflector can be achieved. This causes a drastic increase in the efficiency of the entire arrangement.
  • a preferred embodiment of the arrangement according to the invention provides the subsequent assembly 8 is not mechanically rigid with the waveguide 1 and Assembly platform 3 to connect, but rather rotatable and mechanically fixable to arrange the axis of symmetry of the reflector 6. This is combined with the special advantage that if all are retained Functionalities of the system without changing the position of the whole Antenna arrangement, in particular the reflector 6, any Polarization rotations In relation to the orthogonal arrangement of H / E vector to the normal plane of the earth - here in particular the so-called skew angle - compensate by rotating the subsequent assembly 8.
  • the dielectric field transformer 2 also has the advantage that that for a wide range, the field influence is almost is uniform and at the same time a transformation of the waveguide wave mode in the free space mode is realized, making the arrangement more dielectric Field transformer 2 / waveguide 1 without repercussions on a subsequent system can be connected.
  • FIG. 3 shows an arrangement according to the invention with the holder 4 shown here folded in for the accommodation of a reflector, the dielectric field transformer 2 and the mounting platform 3 provided for subsequent modules.
  • FIG. 4 shows the rear view of this arrangement in which the mounting platform 3 is designed as an equilateral triangular surface 5 in order to minimize shadowing in the mirror.
  • FIG. 5 shows the arrangement according to the invention with the reflector mounted.
  • the subreflector with a circular aperture 6 is mounted on the brackets 4 by means of the supports 7.
  • the subsequent assemblies 8 are fastened to the assembly platform 3 by means of a screw connection.
  • the arrangement according to the invention is positioned in the axis of rotation of the reflector 6 and with the dielectric field transformer 2 at the level of the focal point of the reflector 6.
  • a carrier board 9 is arranged in the vicinity of the dielectric field transformer 2 by means of screwed-on spacers 11.
  • the dielectric carrier board 9 has a bore 12 with a diameter suitable for the dielectric field transformer 2 at the location of the field transformer 2 and is arranged plane-parallel to the mounting platform 3 without a direct mechanical or electrical connection to the dielectric field transformer 2.
  • the dielectric carrier board 9, on which the passive radiator components and switching elements 10 are arranged, has the effect that the source field originating from the dielectric field transformer 2 is only slightly influenced, due to the openings in the dielectric carrier board 9, with the result that the penetrating one Field and thus the entire antenna arrangement are only slightly attenuated and thus extremely high efficiency is still available.
  • a further advantage of this embodiment of the arrangement is that simple mechanical arrangement options for different antenna arrangements allow both the optimum illumination and thus the high efficiency of the entire antenna arrangement to be achieved while at the same time influencing the radiation characteristic, which in particular leads to a significant reduction in the necessary reflector area 6 leads conventional beam swiveling systems.
  • FIG. 6 shows the dielectric carrier 9 in a top view. This is fastened to the mounting platform 3 with the screwable spacers 11.
  • the dielectric carrier 9 contains in its center a circular bore 12, the diameter of which corresponds to the dielectric field transformer 2.
  • Parasitic (passive) radiators with switching components 10 are arranged around the bore 12 of the dielectric carrier 9. In FIG. 6 , these are arranged, for example, in a uniform distribution at an angle of 90 ° in each case, the elements each consisting of a pair of radiators which are positioned orthogonally to one another.
  • a control block 13, consisting of standard components, is arranged on the dielectric carrier 9 and takes over the control of the switching components. The control block is connected with a cable 14 to further subsequent assemblies.

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Abstract

An arrangement for feeding a centrally focused reflector antenna includes a waveguide (1), a dielectric field transformer (2) arranged on the waveguide (1) and a mounting platform (3) for a series of modules (8) which is embodied on one end of the waveguide (1). The waveguide (1) is provided with an arrangement for receiving the dielectric field transformer (2) which partially protrudes into the waveguide (1). Preferably, a dielectric support (9) may be provided in the vicinity of the dielectric field transformer (2). The middle of the support has a circular bore (12) whose diameter corresponds to the diameter of the dielectric field transformer (2). The centrally focused reflector antenna can be excited in the focal point thereof in a field-optimum broadband manner.

Description

Die Erfindung bezieht sich auf eine Anordnung zur Erregung einer zentralfokussierten Reflektorantenne.The invention relates to an arrangement for exciting a centrally focused reflector antenna.

Die Anwendung der Anordnung erstreckt sich vor altern auf die Bereiche der Kommunikationstechnik bei stationären, portablen und mobilen Sende-Empfangssystemen hochfrequenter elektromagnetischer Strahlungsquellen, insbesondere von geostationären und umlaufenden Satellitensystemen, bei landund luftmobilen Quellen sowie bei der Punkt zu-Punkt-Richtfunkübertragung oder der Punkt-zu-Mehrpunkt-Richtfunkübertragung der Sicherheits-, Radar- und berührungslosen Sensortechnik.The application of the arrangement extends to the areas of aging Communication technology for stationary, portable and mobile transceiver systems high-frequency electromagnetic radiation sources, especially of geostationary and orbiting satellite systems at landund mobile sources as well as point-to-point radio relay transmission or the point-to-multipoint radio relay transmission of security, radar and non-contact sensor technology.

Bekannte Anordnungen zur Erregung eines zentralfokussierten Reflektorantennensystems nutzen als Erregersystem am Hohlleiterende entweder ein Rillenhorn oder ein flachaufgeweitetes Hohlleiterstück.
Das Erregersystem wird im Brennpunkt, dem Phasenzentrum, der Reflektorantenne angeordnet und soll diese optimal ausleuchten. Von besonderer Bedeutung ist dabei die weitgehend gleichmäßige Ausleuchtung des Reflektors bei gleichmäßiger Phasenbelegung.
Bekannte Anordnungen zum Zweck der Erregung eines Reflektorantennensystems und dessen Strahlschwenkung nutzen ein Erregersystem im Brennpunkt der Reflektorantenne oder in der Nähe des Brennpunktes angeordnetes Erregersystem, welches aus diskreten Einzelstrahlern besteht (ARRAY) bzw. aus einer Kombination eines solchen Arrays, welches durch ein weiteres System angeregt wird.Known arrangements for excitation of a centrally focused reflector antenna system use either a grooved horn or a flat-widened waveguide section as the excitation system at the waveguide end.
The excitation system is arranged in the focal point, the phase center, the reflector antenna and is intended to illuminate it optimally. Of particular importance is the largely uniform illumination of the reflector with uniform phase assignment.
Known arrangements for the purpose of excitation of a reflector antenna system and its beam swiveling use an excitation system in the focal point of the reflector antenna or in the vicinity of the focal point arranged excitation system, which consists of discrete single radiators (ARRAY) or a combination of such an array, which is excited by another system becomes.

Die dazu bekannten technischen Lösungen erreichen durch die Funktionalitäten des Rillenerregersystems oder des flachaufgeweiteten Hohlleiters keine optimale Feldvertellung im Reflektorsystem beziehungsweise keine optimale Ausleuchtung. Sinngemäß trifft dies auch für Erregersysteme zum Zwecke der Beeinflussung der Strahlungscharakteristik der Antenne zu, wobei sich hier insbesondere erhebliche Einbußen in Bezug auf den Gewinn bzw. die Systemgüte ergeben oder hingenommen werden müssen. Dies trifft gleichermaßen auf die Unterdrückung unerwünschter Nebenkeulen zu.The technical solutions known for this are achieved through the functionalities the grooved excitation system or the flared waveguide is not optimal Field adjustment in the reflector system or not optimal Illumination. This also applies analogously to excitation systems for the purpose of Influencing the radiation characteristics of the antenna, whereby here in particular significant losses in terms of profit or System quality result or have to be accepted. This is true equally towards the suppression of unwanted side lobes.

Bedingt durch die konstruktiven Gegebenheiten ist die erforderliche Versiegelung des Hohlleitersystems gegen Umwelteinflüsse nur durch zusätzliche und aufwendige Komponenten zu erreichen, welche unter Umständen die Funktionalität des Erregersystems auch noch beeinträchtigen können. Hinzu kommt, dass die bekannten Erregersysteme nicht rückwirkungsfrei mit Folgebaugruppen, zum Beispiel Down-Konvertem, kombiniert werden können. Das heißt es sind im allgemeinen zusätzliche Aufwendungen zur optimalen Anpassung eines solchen bekannten Erregersystems an die Folgebaugruppe mit den damit verbundenen Kosten erforderlich.The required sealing is due to the structural conditions of the waveguide system against environmental influences only by additional and to achieve complex components, which may be the Functionality of the excitation system can also affect. in addition comes that the known excitation systems with non-reactive Subsequent modules, for example down-converters, can be combined. That means there are generally additional expenses for optimal Adaptation of such a known excitation system to the subsequent assembly the associated costs required.

Aufgabe der Erfindung ist es daher, eine kostengünstige Anordnung zur feldoptimalen und breitbandigen Erregung zentralfokussierter Reflektorantennen in ihrem Brennpunkt, dem Phasenzentrum, bei gleichzeitiger rückwirkungsfreier Verbindung mit Folgebaugruppen und verbesserter Umweltversieglung des Hohlleiters bereitzustellen und Anpassung des Erregersystems an die jeweilige Reflektorgeometrie (F/D-Verhältnis) zu gewährleisten und um damit die Gestaltung des Strahlungsdiagrammes mit der Funktionalität der Änderung der Feldverteilung am Hohlleiterende spezifisch zum Reflektorsystem der Gestalt so zu beeinflussen, dass keine Rückwirkung in den Hohiletter und damit auf die Folgebaugruppe hervorgerufen wird.The object of the invention is therefore to provide an inexpensive arrangement field-optimized and broadband excitation of centrally focused reflector antennas in their focus, the phase center, with simultaneous non-reactive Connection with subsequent assemblies and improved environmental sealing of the Provide waveguide and adaptation of the excitation system to the respective To ensure reflector geometry (F / D ratio) and thus the Design of the radiation diagram with the functionality of changing the Field distribution at the waveguide end specific to the reflector system of the shape above to influence that no retroactive effect in the Hohiletter and thus on the Follower assembly is caused.

Erfindungsgemäß wird die Aufgabe durch eine Anordnung mit den Merkmalen des Anspruches 1 gelöst. According to the invention, the object is achieved by an arrangement with the features of claim 1 solved.

Bevorzugte Ausführungsformen der erfindungsgemäßen Anordnung ergeben sich aus den Merkmalen der Ansprüche 2 bis 6.Preferred embodiments of the arrangement according to the invention result from the features of claims 2 to 6.

Mit der erfindungsgemäßen Anordnung verbindet sich der besondere Vorzug, dass eine feldoptimale und breitbandige Erregung zentralfokussierter Reflektorantennen in ihrem Brennpunkt gewährleistet ist Durch den dielektrischen Feldtransformator sind keinerlei mechanisch bewegte Komponenten erforderlich. Die Anordnung insgesamt ist mit hoher mechanischer Präzision bei geringem Aufwand kostengünstig herstellbar und weist darüber hinaus auch eine hohe Toleranz gegenüber unterschiedlichen Umweltbedingungen, wie Temperatur, Luftfeuchte und aggressiven Medien auf.The arrangement according to the invention has the particular advantage that that field-optimized and broadband excitation is more centrally focused Reflector antennas in their focal point is guaranteed by the dielectric field transformers are not mechanically moved Components required. The overall arrangement is highly mechanical Precision can be manufactured inexpensively with little effort and points beyond also a high tolerance towards different Environmental conditions such as temperature, humidity and aggressive media.

In einer bevorzugten Ausführungsform der Erfindung ist mit der Anordnung eines dielektrischen Trägers in der Nähe das dielektrischen Feldtransformabors und der Anordnung von passiven, einfach zu steuernden Strahlerkomponenten auf dem dielektrischen Träger eine verlust- und feldoptimale Änderung des breitbandigen Erregerfeldes des Feldtransformators möglich, ohne dass dabei mechanisch bewegte Komponenten erforderlich sind und ohne dass der dielektrische Träger mit dem Feldtransformator mechanisch verbunden werden muss.In a preferred embodiment of the invention, the arrangement of a dielectric carrier in the vicinity of the dielectric field transformer and the Arrangement of passive, easy to control spotlight components on the dielectric carrier a loss and field-optimal change in the broadband Excitation field of the field transformer possible without mechanical moving components are required and without the dielectric support must be mechanically connected to the field transformer.

Weitere Vorzüge ergeben sich aus der nachfolgenden Beschreibung der erfindungsgemäßen Anordnung an Hand von Zeichnungen.Further advantages result from the following description of the arrangement according to the invention with reference to drawings.

Es zeigen:

Fig. 1
den Schnitt durch eine erfindungsgemäße Anordnung,
Fig. 2
die Draufsicht auf die Anordnung gemäß Fig. 1,
Fig. 3
den Schnitt durch eine erfindungsgemäße Anordnung mit einer Halterung zur Montage eines kreisrunden Reflektors;
Fig. 4
die Rückansicht der erfindungsgemäßen Anordnung gemäß Fig. 3,
Fig. 5
den Schnitt durch eine erfindungsgemäße Anordnung mit montiertem Reflektor.
Fig. 6
Draufsicht auf den dielektrischen Träger
Show it:
Fig. 1
the section through an arrangement according to the invention,
Fig. 2
the top view of the arrangement of FIG. 1,
Fig. 3
the section through an arrangement according to the invention with a holder for mounting a circular reflector;
Fig. 4
3 shows the rear view of the arrangement according to the invention according to FIG. 3,
Fig. 5
the section through an arrangement according to the invention with a mounted reflector.
Fig. 6
Top view of the dielectric carrier

Wie aus Figur 1 ersichtlich, besteht die erfindungsgemäße Anordnung aus einem stumpf endenden Hohlleiter 1, der einseitig mit einem dielektrischen Feldtransformator 2 abgeschlossen ist, der zum Teil in den Hohlleiter 2 hineinragt und der in seiner Geometrie mit dem verwendeten Reflektorsystem. -korrespondiert bzw. diesem angepasst ist. Der Hohlleiter 1 weist an seinem anderen Ende eine Montageplattform 3 für Folgebaugruppen 8 auf. Der dielektrische Feldtransformator 2 beeinflusst die E-Komponenten des elektromagnetischen Wechselfeldes in Ausbreitungsrichtung derart, dass das originäre Wellenfeld am anderen Ende des Hohlleiters 1 so deformiert wird, dass eine gleichmäßige, insbesondere kreisförmige Aufweitung des resultlerenden Strahlungsfeldes des Hohlleiters 1 und eine wählbare Leistungsverteirung auf dem Reflektor erreicht werden. Dies bewirkt eine drastische Erhöhung des Wirkungsgrades der gesamten Anordnung.As can be seen from FIG. 1 , the arrangement according to the invention consists of a butt-terminating waveguide 1, which is terminated on one side with a dielectric field transformer 2, which partially protrudes into the waveguide 2 and whose geometry is based on the reflector system used. -corresponds or is adapted to this. The waveguide 1 has at its other end a mounting platform 3 for subsequent assemblies 8. The dielectric field transformer 2 influences the E components of the alternating electromagnetic field in the direction of propagation in such a way that the original wave field at the other end of the waveguide 1 is deformed in such a way that a uniform, in particular circular expansion of the resulting radiation field of the waveguide 1 and a selectable power distribution on the reflector can be achieved. This causes a drastic increase in the efficiency of the entire arrangement.

Eine bevorzugte Ausführungsform der erfindungsgemäßen Anordnung sieht vor, die Folgebaugruppe 8 mechanisch nicht starr mit dem Hohlleiter 1 und der Montageplattform 3 zu verbinden, sondern diese vielmehr drehbar und mechanisch fixierbar um die Symmetrieachse des Reflektors 6 anzuordnen. Damit verbindet sich der besondere Vorzug, dass sich bei Beibehaltung aller Funktionalitäten des Systems ohne Änderung der Position der gesamten Antennenanordnung, insbesondere des Reflektors 6, beliebige Polarisationsdrehungen In Bezug auf die orthogonale Anordnung von H/E-Vektor zur Normalebene der Erde - hier insbesondere der sogenannte Skew-Winkel - durch Rotation der Folgebaugruppe 8 ausgleichen lassen.A preferred embodiment of the arrangement according to the invention provides the subsequent assembly 8 is not mechanically rigid with the waveguide 1 and Assembly platform 3 to connect, but rather rotatable and mechanically fixable to arrange the axis of symmetry of the reflector 6. This is combined with the special advantage that if all are retained Functionalities of the system without changing the position of the whole Antenna arrangement, in particular the reflector 6, any Polarization rotations In relation to the orthogonal arrangement of H / E vector to the normal plane of the earth - here in particular the so-called skew angle - compensate by rotating the subsequent assembly 8.

Mit dem dielektrischen Feldtransformator 2 verbindet sich außerdem der Vorzug, dass für einen Bereich großer Bandbreite die Feldbeeinflussung nahezu gleichmäßig ist und gleichzeitig eine Transformation des Hohlleiter Wellenmodus in den Freiraum-Modus realisiert wird, wodurch die Anordnung dielektrischer Feldtransformator 2 / Hohlleiter 1 ohne Rückwirkungen an ein Folgesystem angeschlossen werden kann.The dielectric field transformer 2 also has the advantage that that for a wide range, the field influence is almost is uniform and at the same time a transformation of the waveguide wave mode in the free space mode is realized, making the arrangement more dielectric Field transformer 2 / waveguide 1 without repercussions on a subsequent system can be connected.

Figur 3 zeigt eine erfindungsgemäße Anordnung mit der hier eingeklappt dargestellten Halterung 4 für die Aufnahme eines Reflektors, dem dielektrischen Feldtransformator 2 und der für Folgebaugruppen vorgesehenen Montageplattform 3. FIG. 3 shows an arrangement according to the invention with the holder 4 shown here folded in for the accommodation of a reflector, the dielectric field transformer 2 and the mounting platform 3 provided for subsequent modules.

Die Figur 4 zeigt die Rückansicht dieser Anordnung bei der zur Minimierung der Abschattung im Spiegel die Montageplattform 3 als gleichseitige Dreiecksfläche 5 ausgebildet ist. FIG. 4 shows the rear view of this arrangement in which the mounting platform 3 is designed as an equilateral triangular surface 5 in order to minimize shadowing in the mirror.

in Figur 5 ist die erfindungsgemäße Anordnung mit montiertem Reflektor dargestellt. Der Subreflektor kreisrunder Apertur 6 ist mittels der Stützen 7 an den Halterungen 4 montiert. Die Folgebaugruppen 8 werden In dieser Ausführungsform der Erfindung mittels Schraubverbindung an der Montageplattform 3 befestigt. Die erfindungsgemäße Anordnung ist in der Rotationsachse des Reflektors 6 und mit dem dielektrischen Feldtransformator 2 in Höhe des Brennpunktes des Reflektors 6 positioniert. 5 shows the arrangement according to the invention with the reflector mounted. The subreflector with a circular aperture 6 is mounted on the brackets 4 by means of the supports 7. In this embodiment of the invention, the subsequent assemblies 8 are fastened to the assembly platform 3 by means of a screw connection. The arrangement according to the invention is positioned in the axis of rotation of the reflector 6 and with the dielectric field transformer 2 at the level of the focal point of the reflector 6.

Wie in Figur 5 ersichtlich, ist mittels verschraubten Abstandshaltern 11 eine Trägerplatine 9 In der Nähe des dielektrischen Feldtransformators 2 angeordnet. Die dielektrische Trägerplatine 9 weist an der Stelle des Feldtransformators 2 eine Bohrung 12 mit einem für den dielektrischen Feldtransformator 2 passenden Durchmesser auf und ist ohne direkte mechanische oder elektrische Verbindung zum dielektrischen Feldtransformator 2 planparallel zur Montageplattform 3 angeordnet.
Die dielektrische Trägerplatine 9, auf der die passiven Strahlerkomponenten und Schaltelemente 10 angeordnet sind, bewirkt, dass das vom dielektrischen Feldtransformator 2 herrührende Quellfeld, bedingt durch die Öffnungen in der dielektrischen Trägerplatine 9, nur gering beeinflusst wird, was zur Folge hat, dass das durchtretende Feld und somit die gesamte Antennenanordnung nur gering gedämpft werden und damit eine extrem hohe Effizienz weiterhin zur Verfügung steht. Gleichzeitig ist die Möglichkeit der Beeinflussung des vom dielektrischen Feldtransformator 2 herrührenden Quellfeldes dergestalt gegeben, dass sich die resultierende Strahlungscharakteristik der Antenne In den für die Anwendung gewünschten Grenzen variieren lässt. Ein weiterer Vorzug dieser Ausführungsform der Anordnung besteht darin, dass sich durch einfache mechanische Anordnungsmöglichkeiten für unterschiedliche Antennenanordnungen sowohl die optimale Ausleuchtung und damit der hohe Wirkungsgrad der gesamten Antennenanordnung bei gleichzeitiger Beeinflussung der Strahlungscharakteristik erreichen lassen, was insbesondere zu einer deutlichen Verkleinerung der notwendigen Reflektorfläche 6 gegenüber herkömmlichen strahlschwenkbaren Systemen führt.As can be seen in FIG. 5 , a carrier board 9 is arranged in the vicinity of the dielectric field transformer 2 by means of screwed-on spacers 11. The dielectric carrier board 9 has a bore 12 with a diameter suitable for the dielectric field transformer 2 at the location of the field transformer 2 and is arranged plane-parallel to the mounting platform 3 without a direct mechanical or electrical connection to the dielectric field transformer 2.
The dielectric carrier board 9, on which the passive radiator components and switching elements 10 are arranged, has the effect that the source field originating from the dielectric field transformer 2 is only slightly influenced, due to the openings in the dielectric carrier board 9, with the result that the penetrating one Field and thus the entire antenna arrangement are only slightly attenuated and thus extremely high efficiency is still available. At the same time, it is possible to influence the source field originating from the dielectric field transformer 2 in such a way that the resulting radiation characteristic of the antenna can be varied within the limits desired for the application. A further advantage of this embodiment of the arrangement is that simple mechanical arrangement options for different antenna arrangements allow both the optimum illumination and thus the high efficiency of the entire antenna arrangement to be achieved while at the same time influencing the radiation characteristic, which in particular leads to a significant reduction in the necessary reflector area 6 leads conventional beam swiveling systems.

Figur 6 zeigt den dielektrischen Träger 9 in der Draufsicht. Dieser ist mit den verschraubbaren Abstandshaltern 11 an der Montageplattform 3 befestigt. Der dielektrische Träger 9 enthält in seiner Mitte eine kreisrunde Bohrung 12, deren Durchmesser mit dem dielektrischen Feldtransformator 2 korrespondiert. Um die Bohrung 12 des dielektrischen Trägers 9 sind parasitäre (passive) Strahler mit Schaltkomponenten 10 angeordnet. In Figur 6 sind diese beispielhaft In gleichmäßiger Verteilung in einem Winkel von jeweils 90° angeordnet, wobei die Elemente zu jeweils einem Strahlerpaar bestehen, weiche orthogonal zueinander positioniert sind. Weiterhin ist auf dem dielektrischen Träger 9 ein Steuerblock 13, bestehend aus Standardkomponenten, angeordnet, der die Steuerung der Schaltkomponenten übernimmt. Der Steuerblock ist mit einem Kabel 14 mit weiteren Folgebaugruppen verbunden. FIG. 6 shows the dielectric carrier 9 in a top view. This is fastened to the mounting platform 3 with the screwable spacers 11. The dielectric carrier 9 contains in its center a circular bore 12, the diameter of which corresponds to the dielectric field transformer 2. Parasitic (passive) radiators with switching components 10 are arranged around the bore 12 of the dielectric carrier 9. In FIG. 6 , these are arranged, for example, in a uniform distribution at an angle of 90 ° in each case, the elements each consisting of a pair of radiators which are positioned orthogonally to one another. Furthermore, a control block 13, consisting of standard components, is arranged on the dielectric carrier 9 and takes over the control of the switching components. The control block is connected with a cable 14 to further subsequent assemblies.

BezugszeichenaufstellungREFERENCE NUMBERS

11
Hohlleiterwaveguide
22
dielektrischer Feldtransformatordielectric field transformer
33
Montageplattformmounting platform
44
Halterungbracket
55
Dreiecksflächetriangular face
66
Reflektorreflector
77
StützenSupport
88th
Folgebaugruppefollow assembly
99
dielektrische Trägerplatinedielectric carrier board
1010
Strahlerkomponente/SchaftelementeRadiator component / shaft elements
1111
Abstandshalterspacer
1212
Bohrungdrilling
1313
Steuerblockcontrol block
1414
Kabelelectric wire

Claims (6)

  1. An arrangement for feeding a centrally focused reflector antenna comprising a waveguide (1) and a dielectric support (9), characterized in that a dielectric field transformer (2) is mounted on said waveguide (1) and said dielectric support (9) is mounted in front of said waveguide (1) in the vicinity of said dielectric field transformer (2) without being mechanically or electrically connected thereto, wherein said dielectric support (9) includes a circular bore (12) at the center thereof whose diameter corresponds to the diameter of said dielectric field transformer (2), said dielectric field transformer (2) partly protrudes into said circular bore (12), and a mounting platform (3) for downstream modules (8) is formed at the end of said waveguide (1).
  2. The arrangement of claim 1, characterized in that the geometry of said dielectric field transformer (2) is matched to the corresponding reflector system.
  3. The arrangement of claim 1 or 2, characterized in that all components of said arrangement other than said dielectric field transformer (2) and said dielectric support plate (9) are made of metal, preferably in one piece, wherein the interior of said waveguide (1) has a surface roughness of less than 0.5 µm.
  4. The arrangement of any of claims 1 to 3, characterized in that said mounting platform (3) includes mounts (4) to which said reflector (6) is mounted by means of struts (7), and said downstream module (8) is mounted in a rotatable and fixable manner about the axis of symmetry of said reflector (6).
  5. The arrangement of any of claims 1 to 4, characterized in that said dielectric support is preferably connected to said mounting platform (3) by means of bolted spacers (11) of metal or dielectric type, and is arranged in a plane-parallel manner thereto.
  6. The arrangement of any of claims 1 to 5, characterized in that parasitic (passive) radiator elements, preferably feedable by radiation coupling, with circuit components (10) are arranged on said dielectric support (9) individually or in orthogonally aligned pairs having a planar or three-dimensional geometry in the edge region of the beam path around said bore (12).
EP02735053A 2001-04-21 2002-04-19 Device for exciting a centrally focused reflector antenna Expired - Lifetime EP1384287B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20107294U DE20107294U1 (en) 2001-04-21 2001-04-21 Arrangement for excitation of a centrally focused reflector antenna
DE20107294U 2001-04-21
PCT/DE2002/001511 WO2002087018A1 (en) 2001-04-21 2002-04-19 Device for exciting a centrally focused reflector antenna

Publications (2)

Publication Number Publication Date
EP1384287A1 EP1384287A1 (en) 2004-01-28
EP1384287B1 true EP1384287B1 (en) 2004-08-04

Family

ID=7956297

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02735053A Expired - Lifetime EP1384287B1 (en) 2001-04-21 2002-04-19 Device for exciting a centrally focused reflector antenna

Country Status (15)

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US (1) US6876335B2 (en)
EP (1) EP1384287B1 (en)
JP (1) JP2004527178A (en)
KR (1) KR100896113B1 (en)
CN (1) CN100376059C (en)
AT (1) ATE272902T1 (en)
CA (1) CA2444948C (en)
DE (3) DE20107294U1 (en)
DK (1) DK1384287T3 (en)
ES (1) ES2225791T3 (en)
HR (1) HRP20030859B1 (en)
IL (2) IL158492A0 (en)
NO (1) NO326863B1 (en)
PT (1) PT1384287E (en)
WO (1) WO2002087018A1 (en)

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Publication number Priority date Publication date Assignee Title
WO2008098570A1 (en) 2007-02-13 2008-08-21 Häßner, Katrin Array for influencing the radiation characteristics of a reflector antenna, particularly a centrally focused reflector antenna

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
CN110739551B (en) * 2019-10-29 2021-09-28 Oppo广东移动通信有限公司 Array lens, lens antenna, and electronic apparatus

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Publication number Priority date Publication date Assignee Title
WO2008098570A1 (en) 2007-02-13 2008-08-21 Häßner, Katrin Array for influencing the radiation characteristics of a reflector antenna, particularly a centrally focused reflector antenna
DE102007007707A1 (en) 2007-02-13 2008-08-21 Häßner, Katrin Arrangement for influencing the radiation characteristic of a reflector antenna, in particular a centrally focused reflector antenna

Also Published As

Publication number Publication date
DK1384287T3 (en) 2004-11-22
HRP20030859B1 (en) 2008-04-30
US6876335B2 (en) 2005-04-05
DE10291770D2 (en) 2004-04-15
WO2002087018A1 (en) 2002-10-31
CN1520630A (en) 2004-08-11
IL158492A0 (en) 2004-05-12
DE50200764D1 (en) 2004-09-09
CA2444948C (en) 2010-03-16
CA2444948A1 (en) 2002-10-31
ES2225791T3 (en) 2005-03-16
PT1384287E (en) 2004-11-30
NO20034685D0 (en) 2003-10-20
KR100896113B1 (en) 2009-05-07
HRP20030859A2 (en) 2005-08-31
JP2004527178A (en) 2004-09-02
ATE272902T1 (en) 2004-08-15
IL158492A (en) 2009-08-03
EP1384287A1 (en) 2004-01-28
KR20040004593A (en) 2004-01-13
NO326863B1 (en) 2009-03-02
DE20107294U1 (en) 2001-08-23
NO20034685L (en) 2003-11-28
CN100376059C (en) 2008-03-19
US20040130498A1 (en) 2004-07-08

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