EP1090437B1 - Antenna, use of an antenna of this type and method for producing the same - Google Patents
Antenna, use of an antenna of this type and method for producing the same Download PDFInfo
- Publication number
- EP1090437B1 EP1090437B1 EP00934860A EP00934860A EP1090437B1 EP 1090437 B1 EP1090437 B1 EP 1090437B1 EP 00934860 A EP00934860 A EP 00934860A EP 00934860 A EP00934860 A EP 00934860A EP 1090437 B1 EP1090437 B1 EP 1090437B1
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- EP
- European Patent Office
- Prior art keywords
- antenna
- curved
- convex
- antenna elements
- elements
- 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 - Lifetime
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
- H01Q1/244—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas extendable from a housing along a given path
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/362—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith for broadside radiating helical antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
- H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
- H01Q5/364—Creating multiple current paths
- H01Q5/371—Branching current paths
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/378—Combination of fed elements with parasitic elements
Definitions
- the present invention relates to an antenna, in particular a helical antenna, use of such an antenna and a method of manufacturing such an antenna according to the preamble of claims 1, 15 and 16.
- the design plays, i.e. the outer Appearance, when designing antennas a big one Role.
- modern mobile devices increasingly not only in a cellular network, i.e. in one Frequency range, but in several frequency ranges be usable.
- Multiband antenna systems are currently used, which consist of several individual antennas, for example of cylindrical symmetrical helical wire structures or planar antennas (eg so-called PCB boards).
- a dual-band antenna which consists of a helix antenna and a parasitic element which is arranged next to the helix antenna but is not connected to it.
- EP 0 893 841 A1 furthermore discloses an inexpensive manufacture of a helix antenna by punching out a thin sheet.
- this helix antenna which can be operated in only one frequency band, is not mechanically sufficiently stable, so that in a further working step it is reinforced with non-conductive materials which have been applied using injection molding technology.
- the present invention is therefore based on the object propose an antenna, which on the one hand is as possible easy and inexpensive to manufacture and on the other hand much leeway in the design of the exterior design Antenna enables.
- the antenna should enable easy expansion to a multiband antenna.
- the antenna according to the invention describes a helical one Basic structure, which is particularly cost-effective easy punching and bending of a metal or sheet metal part can be made.
- the antenna is convex curved and strip-shaped antenna elements that such in series over webs running in the longitudinal direction of the antenna switched and arranged so that they are in the form of a helix replicate.
- the basic structure of a helix modified so that the antenna only elements has, which - in the longitudinal plane of the antenna considered - do not overlap, so that the helix structure through a simple stamping process can be made.
- the structure of the antenna according to the invention is not mandatory cylindrical symmetry and does not necessarily have to be planar Instructions included.
- the curved stripe-shaped Rather, antenna elements can be used within wide limits be shaped so that when designing the outer design there is a lot of design freedom and a design-compliant one Structure, for example a non-cylindrical symmetry Cross section, can be formed much easier.
- the helical basic structure of the antenna according to the invention simply becomes a dual-band, Triple band or general multiband antenna extended:
- the helical basic series connection of the convex curved antenna elements only by another parasitic antenna element in the form of an elongated web which runs parallel to the helix and is also arranged in such a way that the individual elements of the antenna, viewed in the longitudinal plane of the antenna do not overlap, so that this is also parasitic Antenna element together with the helical basic structure can be made from the same stamped and bent part.
- the Parasitic and web-like antenna element is not just too connected in parallel to the helical base structure, i.e. at the lower antenna end connected to this, but especially so close to this helical Basic structure arranged that a clear electromagnetic coupling between the individual Antenna elements is given and on the other hand the construction volume the antenna becomes minimal.
- the distributed Partial inductances and capacities of the individual Antenna elements are used in such a way that the thus a parallel connection and a series connection of preferably elliptically curved half rings and straight Are existing antennas in several frequency bands can be operated.
- Antenna contact spring which is the electrical contact between the antenna and the electronics of it too produces operating device, in one piece from a single Stamped and bent part are manufactured, which is special is inexpensive because the antenna contact spring with the Basic antenna structure during the same production step can be manufactured.
- Fig. 1 shows a perspective view of a punchable Triple band antenna according to a preferred one Embodiment of the present invention
- FIG. 2 shows the course of the reflection factor in FIG. 1 shown antenna depending on the operating frequency.
- the antenna shown in Fig. 1 has a helical shape Basic structure.
- This is the basic helical structure realized that convex curved antenna elements 2, 3 with opposite bends or curvatures are arranged alternately so that a down curved antenna element 3 on an upward curved Antenna element follows and vice versa.
- the neighboring arranged ends of two adjacent antenna elements 2, 3 are preferably straight and in the longitudinal direction of the Bridges 4, 5 extending antenna or helix with one another in this way connected that there is a series connection of the individual Antenna elements 2, 3 results and that shown in Fig. 1 Helix structure is formed.
- the helical antenna shown in Fig. 1 can be easily by a Stamping and bending process can be produced. To do this you need to a metal or sheet metal part only the strip-shaped and preferably parallel to each other Antenna elements 2, 3 and the adjacent ends of the Webs 4, 5 connecting antenna elements are punched and the Alternate antenna elements 2 and 3 bent according to FIG. 1 become. However, the antenna elements 2, 3 can also run at an angle to each other. From Fig. 1 it can be seen that the individual elements of this helical antenna are arranged in this way are that they - viewed in the longitudinal direction of the antenna - Do not overlap at any point, which otherwise the punching process would hinder or even make impossible.
- each convex curved Antenna elements 2 and 3 are preferably identical, so that there is a uniform helical structure. Furthermore, it is recommended that the antenna elements 2 and 3 to bend elliptically.
- the trained as half rings However, antenna elements 2 and 3 can basically be in certain limits can be shaped arbitrarily to a certain To realize design.
- the antenna contact spring 1 can also be easily cut and punched accordingly subsequent bending of the same metal part become.
- the antenna contact spring 1 is simple formed by an elongated section which then bent into a desired shape. Form this section can be chosen as long as the Length of the section does not become too large.
- Fig. 1 can be seen that the above described helical basic structure another, parasitic antenna element 6 is connected in parallel, which is at the lower longitudinal end of the antenna with one end of the in the longitudinal direction of the first antenna element 2 and the Antenna contact spring 1 is connected.
- This further Antenna element 2 runs in particular in the same plane like the connecting webs 4 and 5 parallel to the helical basic structure of the antenna and is also such arranged that there are no overlaps. So can this further antenna element 6 from the same stamped part how the rest of the antenna are made.
- the parallel-connected antenna element 6 is so close to that helical base structure with antenna elements 2, 3 arranged that between these antenna elements 2, 3 and 6th a clear electromagnetic coupling during operation occurs and on the other hand the volume of the antenna can be minimized.
- an antenna element 6 connected in parallel End section 7, which is preferably parallel and laterally to the last convex curved half ring in the longitudinal direction of the antenna the helix structure runs.
- This curved end section 7 can have the same bend as the half-rings bent upwards or have antenna elements 2 and serves to optimized electromagnetic coupling the necessary Conductor strip length with minimum total antenna volume realize.
- the end section 7 completes the construction of the Antenna in the longitudinal direction.
- the distributed partial inductances and capacities of the formed and shown in Fig. 1 antenna structure be exploited that the antenna in several Frequency ranges can be operated.
- the antenna can be optimized close to a first one Resonance frequency for one of their target frequency bands be used and at the same time close to a second Work resonance frequency so broadband that the Use in two other frequency bands is possible.
- measured for the antenna shown in FIG. 1 shown shows the reflection factor
- the reflection factor at a first resonance frequency in the range of the frequency range of the GSM mobile radio standard (Global System For Mobile Communication) and also at a second resonance frequency within the overlapping frequency ranges of the mobile radio standards PCS (Personal Communication Services ) and PCN (Personal Communication Network) takes minimum values, so that the antenna can be operated accordingly in three different frequency bands and according to three different mobile radio standards.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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Description
Die vorliegende Erfindung betrifft eine Antenne, insbesondere
eine Helixantenne, eine Verwendung einer derartigen Antenne
und ein Verfahren zur Herstellung einer derartigen Antenne
gemäß dem Oberbegriff der Ansprüche 1, 15 und 16.The present invention relates to an antenna, in particular
a helical antenna, use of such an antenna
and a method of manufacturing such an antenna
according to the preamble of
Bei Mobilfunkgeräten spielt das Design, d.h. das äußere Erscheinungsbild, bei der Gestaltung von Antennen eine große Rolle. Darüber hinaus sollen moderne Mobilfunkgeräte zunehmend nicht nur in einem Mobilfunknetz, d.h. in einem Frequenzbereich, sondern in mehreren Frequenzbereichen nutzbar sein.With mobile devices, the design plays, i.e. the outer Appearance, when designing antennas a big one Role. In addition, modern mobile devices increasingly not only in a cellular network, i.e. in one Frequency range, but in several frequency ranges be usable.
Es werden daher sogenannte Multiband-Antennen benötigt, welche in zwei oder mehreren Frequenzbereichen nutzbar sind, wobei die oben genannten Anforderungen an die Leistungsfähigkeit und das Design der Antenne möglichst einfach und kostengünstig realisierbar sein sollen.So-called multiband antennas are therefore required which can be used in two or more frequency ranges, the above requirements for the Performance and the design of the antenna as possible should be easy and inexpensive to implement.
Derzeit werden Multiband-Antennensysteme verwendet, welche
aus mehreren einzelnen Antennen, beispielsweise aus
zylindersymmetrischen Helixdrahtgebilden oder Planarantennen
(z.B. sogenannten PCB-Boards), bestehen. Beispielsweise aus
WO99/14819 ist eine Dual-Band-Antenne bekannt, welche aus
einer Helix-Antenne und einem parasitären Element besteht,
welches neben der Helix-Antenne angeordnet, aber nicht mit
dieser verbunden ist.
EP 0 893 841 A1 offenbart weiterhin eine kostengünstige
Herstellung einer Helix-Antenne durch ein Ausstanzen aus
einem dünnen Blech. Diese in nur einem Frequenzband
betreibbbare Helix-Antenne ist allerdings mechanisch nicht
hinreichend stabil, so dass sie in einem weiteren
Arbeitsschritt mit durch in Spritzgusstechnik aufgebrachten,
nicht-leitenden Werkstoffen verstärkt wird. Multiband antenna systems are currently used, which consist of several individual antennas, for example of cylindrical symmetrical helical wire structures or planar antennas (eg so-called PCB boards). For example, from WO99 / 14819 a dual-band antenna is known which consists of a helix antenna and a parasitic element which is arranged next to the helix antenna but is not connected to it.
Diese bekannten Lösungen können zwar zur Verbesserung des Designs in ein Gehäuse eingebaut werden, welches nicht der Grundform der Antenne entspricht, d.h. es kann beispielsweise ein Antennengehäuse mit elliptischem Querschnitt anstelle eines zylindersymmetrischen Querschnitts gewählt werden. Es wird jedoch dann relativ viel Platz für das gesamte Anntennensystem benötigt, so daß der Designforderung nach möglichst geringen Geräteabmessungen nicht entsprochen oder das gewünschte Design nicht realisiert werden kann.These known solutions can improve the Designs are installed in a housing that is not the Basic shape of the antenna corresponds, i.e. for example it can an antenna housing with an elliptical cross section instead of a cylindrically symmetrical cross section. It However, there will be a lot of space for the whole Antenna system required, so that the design requirement the smallest possible device dimensions did not meet or the desired design cannot be realized.
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Antenne vorzuschlagen, welche sich einerseits möglichst einfach und kostengünstig herstellen läßt und andererseits viel Spielraum bei der Gestaltung des äußeren Designs der Antenne ermöglicht. Insbesondere soll die Antenne eine einfache Erweiterung zu einer Multiband-Antenne ermöglichen.The present invention is therefore based on the object propose an antenna, which on the one hand is as possible easy and inexpensive to manufacture and on the other hand much leeway in the design of the exterior design Antenna enables. In particular, the antenna should enable easy expansion to a multiband antenna.
Die oben genannte Aufgabe wird erfindungsgemäß durch eine
Antenne mit den Merkmalen des Anspruches 1 gelöst. Des
weiteren wird ein Verfahren zur Herstellung einer derartigen
Antenne mit den Merkmalen des Anspruches 16 vorgeschlagen
sowie eine Verwendung einer derartigen Antenne gemäß den
Merkmalen des Anspruchs 15. Die Unteransprüche beschreiben
jeweils bevorzugte und vorteilhafte Ausführungsformen der
vorliegenden Erfindung.The above object is achieved by a
Antenna with the features of claim 1 solved. Of
another is a method for producing such
Antenna with the features of
Die erfindungsgemäße Antenne beschreibt eine helixförmige Grundstruktur, welche sich besonders kostengünstig durch einfaches Stanzen und Biegen eines Metall- oder Blechteils herstellen läßt. Zu diesem Zweck umfaßt die Antenne konvex gebogene und streifenförmige Antennenelemente, die derart über in Längsrichtung der Antenne verlaufende Stege in Reihe geschaltet und angeordnet sind, daß sie die Form einer Helix nachbilden. Auf diese Weise ist die Grundstruktur einer Helix derart abgewandelt, daß die Antenne lediglich Elemente aufweist, welche sich - in der Längsebene der Antenne betrachtet - nicht überlappen, so daß die Helixstruktur durch einen einfachen Stanzprozeß hergestellt werden kann.The antenna according to the invention describes a helical one Basic structure, which is particularly cost-effective easy punching and bending of a metal or sheet metal part can be made. For this purpose the antenna is convex curved and strip-shaped antenna elements that such in series over webs running in the longitudinal direction of the antenna switched and arranged so that they are in the form of a helix replicate. In this way, the basic structure of a helix modified so that the antenna only elements has, which - in the longitudinal plane of the antenna considered - do not overlap, so that the helix structure through a simple stamping process can be made.
Die Struktur der erfindungsgemäßen Antenne ist nicht zwingend zylindersymmetrisch und muß auch nicht zwingend planare Anordnungen enthalten. Die gebogenen streifenförmigen Antennenelemente können vielmehr in weiten Grenzen beliebig geformt sein, so daß bei der Gestaltung des äußeren Designs viel Gestaltungsspielraum gegeben ist und eine designkonforme Struktur, beispielsweise ein nichtzylindersymmetrischer Querschnitt, deutlich einfacher gebildet werden kann.The structure of the antenna according to the invention is not mandatory cylindrical symmetry and does not necessarily have to be planar Instructions included. The curved stripe-shaped Rather, antenna elements can be used within wide limits be shaped so that when designing the outer design there is a lot of design freedom and a design-compliant one Structure, for example a non-cylindrical symmetry Cross section, can be formed much easier.
Die zum Herstellen der erfindungsgemäßen Antenne benötigte Standardtechnologie des Stanzens und Biegens von Metall- oder Blechteilen ermöglicht extrem hohe Fertigungsgeschwindigkeiten und somit geringe Herstellungskosten.The one required to manufacture the antenna according to the invention Standard technology of punching and bending metal or Sheet metal parts enable extremely high production speeds and thus low manufacturing costs.
Die oben beschriebene helixförmige Grundstruktur der erfindungsgemäßen Antenne wird einfach zu einer Dualband-, Tripleband- oder allgemein Multiband-Antenne erweitert: Hierzu muß die helixförmige GrundReihenschaltung der konvex gebogenen Antennenelemente lediglich um ein weiteres, parasitäres Antennenelement in Form eines länglichen Stegs ergänzt werden, welcher parallel zu der Helix verläuft und ebenso derart angeordnet ist, daß sich die einzelnen Elemente der Antenne, in der Längsebene der Antenne betrachtet, an keiner Stelle überlappen, so daß auch dieses parasitäre Antennenelement zusammen mit der helixförmigen Grundstruktur aus demselben Stanzbiegeteil gefertigt werden kann. Das parasitäre und stegartige Antennenelement ist nicht nur zu der helixförmigen Grundstruktur parallel geschaltet, d.h. am unteren Antennenende mit dieser verbunden, sondern insbesondere derart nahe bei dieser helixförmigen Grundstruktur angeordnet, daß eine deutliche elektromagnetische Verkopplung zwischen den einzelnen Antennenelementen gegeben ist und andererseits das Bauvolumen der Antenne minimal wird. The helical basic structure of the antenna according to the invention simply becomes a dual-band, Triple band or general multiband antenna extended: For this, the helical basic series connection of the convex curved antenna elements only by another parasitic antenna element in the form of an elongated web which runs parallel to the helix and is also arranged in such a way that the individual elements of the antenna, viewed in the longitudinal plane of the antenna do not overlap, so that this is also parasitic Antenna element together with the helical basic structure can be made from the same stamped and bent part. The Parasitic and web-like antenna element is not just too connected in parallel to the helical base structure, i.e. at the lower antenna end connected to this, but especially so close to this helical Basic structure arranged that a clear electromagnetic coupling between the individual Antenna elements is given and on the other hand the construction volume the antenna becomes minimal.
Mit diesem Antennenaufbau können die verteilten Teilinduktivitäten und Kapazitäten der einzelnen Antennenelemente derart ausgenutzt werden, daß die somit aus einer Parallelschaltung und einer Reihenschaltung von vorzugsweise elliptisch gebogenen Halbringen und geraden Stegen bestehende Antenne in mehreren Frequenzbändern betrieben werden kann. Zudem ist keine zusätzliche Anpaßschaltung für die Inbetriebnahme der Antenne erforderlich.With this antenna structure, the distributed Partial inductances and capacities of the individual Antenna elements are used in such a way that the thus a parallel connection and a series connection of preferably elliptically curved half rings and straight Are existing antennas in several frequency bands can be operated. In addition, there is no additional Adaptation circuit for commissioning the antenna required.
Zudem kann mit der eigentlichen Antennen-Grundstruktur die Antennenkontaktfeder, welche den elektrischen Kontakt zwischen der Antenne und der Elektronik des damit zu betreibenden Geräts herstellt, einteilig aus einem einzigen Stanzbiegeteil hergestellt werden, was besonders kostengünstig ist, da die Anntenenkontaktfeder mit der Antennen-Grundstruktur während desselben Produktionsschritts hergestellt werden kann.In addition, with the actual antenna basic structure Antenna contact spring, which is the electrical contact between the antenna and the electronics of it too produces operating device, in one piece from a single Stamped and bent part are manufactured, which is special is inexpensive because the antenna contact spring with the Basic antenna structure during the same production step can be manufactured.
Die vorliegende Erfindung wird nachfolgend unter Bezugnahme auf die beigeführte Zeichnung anhand eines bevorzugten Ausführungsbeispiels erläutert.The present invention is hereinafter referred to to the accompanying drawing based on a preferred Exemplary embodiment explained.
Fig. 1 zeigt eine perspektivische Ansicht einer stanzbaren Tripleband-Antenne gemäß einem bevorzugten Ausführungsbeispiel der vorliegenden Erfindung, undFig. 1 shows a perspective view of a punchable Triple band antenna according to a preferred one Embodiment of the present invention, and
Fig. 2 zeigt den Verlauf des Reflexionsfaktors der in Fig. 1 gezeigten Antenne in Abhängigkeit von der Betriebsfrequenz.FIG. 2 shows the course of the reflection factor in FIG. 1 shown antenna depending on the operating frequency.
Die in Fig. 1 gezeigte Antenne besitzt eine helixförmige
Grundstruktur. Diese helixförmige Grundstruktur ist dadurch
realisiert, daß konvex gebogene Antennenelemente 2, 3 mit
zueinander entgegegengesetzten Biegungen bzw. Krümmungen
abwechselnd derart angeordnet sind, daß ein nach unten
gebogenes Antennenelement 3 auf ein nach oben gebogenes
Antennenelement folgt und umgekehrt. Die benachbart
angeordneten Enden von zwei benachbarten Antennenelemente 2,
3 sind über vorzugsweise gerade und in Längsrichtung der
Antenne bzw. Helix verlaufende Stege 4, 5 derart miteinander
verbunden, daß sich eine Reihenschaltung der einzelnen
Antennenelemente 2, 3 ergibt und die in Fig. 1 gezeigte
Helixstruktur gebildet wird.The antenna shown in Fig. 1 has a helical shape
Basic structure. This is the basic helical structure
realized that convex
Die in Fig. 1 gezeigte Helixantenne kann einfach durch einen
Stanz- und Biegeprozeß hergestellt werden. Hierzu müssen aus
einem Metall- oder Blechteil lediglich die streifenförmigen
und vorzugsweise zueinander parallel verlaufenden
Antennenelemente 2, 3 sowie die benachbarten Enden der die
Antennenelemente verbindenden Stege 4, 5 gestanzt und die
Antennenelemente 2 und 3 abwechseln gemäß Fig. 1 gebogen
werden. Die Antennenelemente 2, 3 können jedoch auch
zueinander schräg verlaufen. Aus Fig. 1 ist ersichtlich, daß
die einzelnen Elemente dieser Helixantenne derart angeordnet
sind, daß sie sich - in Längsrichtung der Antenne betrachtet
- an keiner Stelle überlappen, was ansonsten den Stanzprozeß
behindern oder sogar unmöglich machen würde.The helical antenna shown in Fig. 1 can be easily by a
Stamping and bending process can be produced. To do this you need to
a metal or sheet metal part only the strip-shaped
and preferably parallel to each
Die Biegeradien der einzelnen konvex gebogenen
Antennenelemente 2 und 3 sind vorzugsweise identisch, so daß
sich eine geichmäßige Helixstruktur ergibt. Des weiteren
empfiehlt es sich aus Designgründen, die Antennenelemente 2
und 3 elliptisch zu biegen. Die als Halbringe ausgebildeten
Antennenelemente 2 und 3 können jedoch grundsätzlich in
gewissen Grenzen beliebig geformt sein, um ein bestimmtes
Design zu realisieren.The bending radii of each convex
Mit der oben beschriebenen Antennenstruktur ist vorzugsweise am unteren Längsende eine Antennenkontaktfeder 1 einteilig ausgebildet, welche dazu dient, die eigentliche Antenne mit der Elektronik des damit zu betreibenden Geräts, vorzugsweise eines Mobilfunkgeräts, zu verbinden. Die Antennenkontaktfeder 1 kann ebenfalls einfach durch entsprechendes Stanzen und nachfolgendes Biegen desselben Metallteils hergestellt werden. Gemäß Fig. 1 ist die Antennenkontaktfeder 1 einfach durch einen länglichen Abschnitt gebildet, welcher anschließend in eine gwünschte Form gebogen wird. Die Form dieses Abschnitts kann beliebig gewählt werden, solange die Länge des Abschnitts nicht zu groß wird.With the antenna structure described above is preferred An antenna contact spring 1 in one piece at the lower longitudinal end trained, which serves the actual antenna with the electronics of the device to be operated with it, preferably a mobile device to connect. The antenna contact spring 1 can also be easily cut and punched accordingly subsequent bending of the same metal part become. 1, the antenna contact spring 1 is simple formed by an elongated section which then bent into a desired shape. Form this section can be chosen as long as the Length of the section does not become too large.
Ebenso kann Fig. 1 entnommen werden, daß zu der oben
beschriebenen helixförmigen Grundstruktur ein weiteres,
parasitäres Antennenelement 6 parallel geschaltet ist,
welches am unteren Längsende der Antenne mit einem Ende des
in Antennenlängsrichtung ersten Antennenelements 2 sowie der
Antennenkontaktfeder 1 verbunden ist. Dieses weitere
Antennenelement 2 verläuft insbesondere in derselben Ebene
wie die Verbindungsstege 4 und 5 parallel zu der
helixförmigen Grundstruktur der Antenne und ist ebenso derart
angeordnet, daß keine Überlappungen entstehen. Somit kann
auch dieses weitere Antennenelement 6 aus demselben Stanzteil
wie der Rest der Antenne hergestellt werden.Likewise, Fig. 1 can be seen that the above
described helical basic structure another,
Das parallelgeschaltete Antennenelement 6 ist so nah an der
helixförmigen Grundstruktur mit den Antennenelementen 2, 3
angeordnet, daß zwischen diesen Antennenelementen 2, 3 und 6
im Betrieb eine deutliche elektromagnetische Verkopplung
auftritt und andererseits das Bauvolumen der Antenne
minimiert werden kann. Am oberen Längsende dieses
parallelgeschalteten Antennenelements 6 befindet sich ein
Endabschnitt 7, der vorzugsweise parallel und seitlich zu dem
in Antennenlängsrichtung letzten konvex gebogenen Halbring
der Helixstruktur verläuft. Dieser gebogene Endabschnitt 7
kann dieselbe Biegung wie die nach oben gebogenen Halbringe
oder Antennenelemente 2 besitzen und dient dazu, bei
optimierter elektromagnetischer Verkopplung die notwendigen
Leiterstreifenlänge bei minimalem Antennengesamtvolumen zu
realisieren. Der Endabschnitt 7 schließt den Aufbau der
Antenne in Längsrichtung ab. The parallel-connected
Die verteilten Teilinduktivitäten und Kapazitäten der somit gebildeten und in Fig. 1 gezeigten Antennenstruktur können so ausgenutzt werden, daß die Antenne in mehreren Frequenzbereichen betrieben werden kann. Durch eine entsprechende Optimierung kann die Antenne nahe einer ersten Resonanzfrequenz für eines ihrer Zielfrequenzbänder eingesetzt werden und gleichzeitig nahe einer zweiten Resonanzfrequenz so breitbandig arbeiten, daß damit der Einsatz in zwei weiteren Frequenzbändern möglich ist.The distributed partial inductances and capacities of the formed and shown in Fig. 1 antenna structure be exploited that the antenna in several Frequency ranges can be operated. By a the antenna can be optimized close to a first one Resonance frequency for one of their target frequency bands be used and at the same time close to a second Work resonance frequency so broadband that the Use in two other frequency bands is possible.
In Fig. 2 ist der für die in Fig. 1 gezeigte Antenne gemessene Reflexionsfaktor |S11| dargestellt. Der Darstellung von Fig. 2 kann entnommen werden, daß der Reflexionsfaktor bei einer ersten Resonanzfrequenz im Bereich des Frequenzbereichs des GSM-Mobilfunkstandards (Global System For Mobile Communication) und zudem bei einer zweiten Resonanzfrequenz innerhalb der einander überschneidenden Frequenzbereiche der Mobilfunkstandards PCS (Personal Communication Services) und PCN (Personal Communication Network) minimale Werte annimmt, so daß die Antenne entsprechend in drei unterschiedlichen Frequenzbändern und gemäß drei unterschiedlichen Mobilfunkstandards betrieben werden kann.2 shows the reflection factor | S 11 | measured for the antenna shown in FIG. 1 shown. It can be seen from the illustration in FIG. 2 that the reflection factor at a first resonance frequency in the range of the frequency range of the GSM mobile radio standard (Global System For Mobile Communication) and also at a second resonance frequency within the overlapping frequency ranges of the mobile radio standards PCS (Personal Communication Services ) and PCN (Personal Communication Network) takes minimum values, so that the antenna can be operated accordingly in three different frequency bands and according to three different mobile radio standards.
Darüber hinaus ist es mit Hilfe der in Fig. 1 gezeigten Antennenstruktur möglich, zugleich eine Nennimpedanz von etwa 50 Ohm zu realisieren, so daß die Antenne ohne Anpaßnetzwerk oder lediglich mit einer geringen Anzahl von Anpassungselementen betrieben werden kann.In addition, it is shown with the help of FIG Antenna structure possible, at the same time a nominal impedance of approximately Realize 50 ohms, so that the antenna without matching network or only with a small number of Adaptation elements can be operated.
Claims (18)
- Antenna having antenna elements (3, 4) which are arranged in such a manner that they model the form of a helix, in that the antenna comprises first and second convex-curved antenna elements (2, 3),
in that the first and second convex-curved antenna elements (2, 3) are arranged alternately in such a manner that the curvature of the first antenna elements (2) is in the opposite direction to the curvature of the second antenna elements (3), and
in that respectively adjacent ends of first and second antenna elements (2, 3) which are arranged adjacent to one another are connected via a web (4, 5), which runs in the longitudinal direction of the antenna, in such a manner that the first and second antenna elements (2, 3) are connected in series and model the form of a helix, without overlapping one another in the longitudinal direction of the antenna
characterized in that the antenna has a third antenna element (6) which runs in the longitudinal direction of the antenna and essentially parallel to the helical arrangement of the first and second convex-curved antenna elements (2, 3), and is connected to the antenna at that longitudinal end thereof which faces the power supply point. - Antenna according to Claim 1,
characterized in that the first and second convex-curved antenna elements (2, 3) are in the form of strips and are arranged parallel to one another. - Antenna according to Claim 1 or 2,
characterized in that the webs (4, 5) which run in the longitudinal direction of the antenna and each connect the ends of first and second antenna elements (2, 3) which are arranged adjacent to one another, are straight. - Antenna according to one of the preceding claims,
characterized in that the first and second convex-curved antenna elements (2, 3) have an identical radius of curvature. - Antenna according to one of the preceding claims,
characterized in that the first and second convex-curved antenna elements (2, 3) are curved elliptically. - Antenna according to one of the preceding claims,
characterized in that the upper longitudinal end (7) of the third antenna element (6) is curved in a convex shape in such a manner that it runs essentially parallel to the first and second antenna elements (2, 3). - Antenna according to Claim 6,
characterized in that the convex-curved upper longitudinal end (7) of the third antenna element (6) is arranged at the side of the uppermost antenna element, seen in the longitudinal direction of the antenna, in the helical arrangement of the first and second convex-curved antenna elements (2, 3), and bounds the length of the antenna at the top. - Antenna according to Claim 6 or 7,
characterized in that the convex-curved upper longitudinal end (7) of the third antenna element (6) has essentially the same radius of curvature as the first and second convex-curved antenna elements (2, 3). - Antenna according to one of the preceding claims,
characterized in that the third antenna element (6) is arranged in the same plane as the webs (4, 5) which connect respectively adjacent first and second antenna elements (2, 3). - Antenna according to Claim 9,
characterized in that the first and second convex-curved antenna elements (2, 3) are arranged symmetrically with respect to the common plane of the third antenna element (6) and of the webs (4, 5). - Antenna according to one of the preceding claims,
characterized in that, at its lower longitudinal end, the antenna has an antenna contact section (1) for connecting the antenna to the electronics of an appliance which can be operated by the antenna. - Antenna according to Claim 11 and Claim 9 or 10,
characterized in that the antenna contact section (1) comprises a first region, which is connected to the lower longitudinal end of the antenna and is bent at right angles out of the common plane of the third antenna element (6) and of the webs (4, 5), and a second region, which is connected to the first region, with the second region being bent at right angles to the first region, in such a manner that the second region runs essentially parallel to the common plane of the third antenna element (6) and of the webs (4, 5). - Antenna according to one of the preceding claims,
characterized in that the antenna is designed to be integral. - Antenna according to Claim 13,
characterized in that the antenna is manufactured from a single metal part. - Use of an antenna according to one of the preceding claims, in a multiband radio.
- Method for producing an antenna, the antenna elements (3, 4) of which model the form of a helix, and in which the antenna elements (2, 3), which are in the form of strips and run alongside one another, and webs (4, 5) which run transversely with respect to the antenna elements (2, 3) are stamped from a metal part, with the webs (4, 5) connecting antenna elements (2, 3), which are in each case arranged adjacent to one another, at one end in such a manner that the antenna elements (2, 3) are connected in series, and the antenna elements (2, 3) are alternately curved in a convex shape upwards and downwards,
characterized in that a further antenna element (6), which is in the form of a strip, is stamped from the same metal part in such a manner that a first section of this element runs essentially parallel to the helical arrangement of the convex-curved antenna elements (2, 3), and a second section of said element runs parallel to the convex-curved antenna elements (2, 3) at the free end lying opposite the power supply point of the antenna, and that longitudinal end of the first section of the further antenna element (6) which faces the power supply point is connected to that end of the helical arrangement which faces the power supply point. - Method according to Claim 16,
characterized in that the second section of the further antenna element (6) has convex curvature. - Method according to one of Claims 16 or 17,
characterized in that an antenna contact section (1) is stamped from the same metal part and is connected to the lower longitudinal end of the helical arrangement of the convex-curved antenna elements (2, 3), and
in that the antenna contact section (1) is bent out of the plane in which the webs (4, 5) which connect the convex-curved antenna elements (2, 3).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19918060 | 1999-04-21 | ||
| DE19918060 | 1999-04-21 | ||
| PCT/DE2000/001023 WO2000065684A2 (en) | 1999-04-21 | 2000-04-03 | Antenna, use of an antenna of this type and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1090437A1 EP1090437A1 (en) | 2001-04-11 |
| EP1090437B1 true EP1090437B1 (en) | 2002-09-04 |
Family
ID=7905341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00934860A Expired - Lifetime EP1090437B1 (en) | 1999-04-21 | 2000-04-03 | Antenna, use of an antenna of this type and method for producing the same |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6501438B2 (en) |
| EP (1) | EP1090437B1 (en) |
| CN (1) | CN1162940C (en) |
| DE (1) | DE50000439D1 (en) |
| WO (1) | WO2000065684A2 (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10003082A1 (en) * | 2000-01-25 | 2001-07-26 | Siemens Ag | Strip-form helical antenna structure manufacturing procedure e.g. for mobile radio equipment antenna |
| DE10049410A1 (en) | 2000-10-05 | 2002-04-11 | Siemens Ag | Mobile phone with multi-band antenna |
| DE60205181T2 (en) * | 2001-06-15 | 2006-06-01 | Hewlett-Packard Development Co., L.P., Houston | Multi-band antenna with two concentric nested antennas, the outer one being a meandering antenna |
| US6788270B2 (en) * | 2001-08-15 | 2004-09-07 | Flarion Technologies, Inc. | Movable antenna for wireless equipment |
| JP2003218620A (en) * | 2002-01-24 | 2003-07-31 | Hitachi Cable Ltd | Method for manufacturing planar antenna |
| US6897830B2 (en) * | 2002-07-04 | 2005-05-24 | Antenna Tech, Inc. | Multi-band helical antenna |
| WO2004091039A2 (en) * | 2003-04-10 | 2004-10-21 | Matsushita Electric Industrial Co. Ltd. | Antenna element and antenna module, and electronic equipment using same |
| FR2863809B1 (en) * | 2003-12-11 | 2006-03-31 | Wavecom | RADIO COMMUNICATION DEVICE CAPABLE OF OPERATING ACCORDING TO TWO COMMUNICATION STANDARDS |
| US7183998B2 (en) * | 2004-06-02 | 2007-02-27 | Sciperio, Inc. | Micro-helix antenna and methods for making same |
| FR2884650B1 (en) * | 2005-04-18 | 2007-10-12 | Valeo Electronique Sys Liaison | ANTENNA |
| US7375689B2 (en) | 2006-02-27 | 2008-05-20 | High Tech Computer Corp. | Multi-band antenna of compact size |
| DE06025233T1 (en) * | 2006-12-06 | 2009-04-16 | High Tech Computer Corp. | Compact multiband antenna |
| US7538743B1 (en) * | 2007-11-15 | 2009-05-26 | International Business Machines Corporation | Balanced and shortened antennas |
| KR101806556B1 (en) * | 2011-08-02 | 2018-01-10 | 엘지이노텍 주식회사 | Antenna and mobile device therefor |
| WO2016066564A1 (en) * | 2014-10-27 | 2016-05-06 | Philips Lighting Holding B.V. | Wireless led tube lamp device |
| US11284819B1 (en) * | 2021-03-15 | 2022-03-29 | Know Labs, Inc. | Analyte database established using analyte data from non-invasive analyte sensors |
| US11284820B1 (en) * | 2021-03-15 | 2022-03-29 | Know Labs, Inc. | Analyte database established using analyte data from a non-invasive analyte sensor |
| US11802843B1 (en) | 2022-07-15 | 2023-10-31 | Know Labs, Inc. | Systems and methods for analyte sensing with reduced signal inaccuracy |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58137206A (en) * | 1982-02-09 | 1983-08-15 | Sony Corp | Inductance element |
| EP0893841A1 (en) * | 1997-07-23 | 1999-01-27 | Matsushita Electric Industrial Co., Ltd. | Helical coil, method of producing same and helical antenna using same |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29623485U1 (en) * | 1995-11-15 | 1998-07-30 | Allgon AB, Åkersberga | Dual band antenna device |
| JP3166589B2 (en) * | 1995-12-06 | 2001-05-14 | 株式会社村田製作所 | Chip antenna |
| DE29623481U1 (en) | 1996-07-19 | 1998-09-10 | Steffgen, Alois, 66892 Bruchmühlbach-Miesau | Suction device for a machine tool |
| FI113214B (en) * | 1997-01-24 | 2004-03-15 | Filtronic Lk Oy | Simple dual frequency antenna |
| US5808586A (en) * | 1997-02-19 | 1998-09-15 | Motorola, Inc. | Side-by-side coil-fed antenna for a portable radio |
| US5923305A (en) * | 1997-09-15 | 1999-07-13 | Ericsson Inc. | Dual-band helix antenna with parasitic element and associated methods of operation |
| US6107970A (en) * | 1998-10-07 | 2000-08-22 | Ericsson Inc. | Integral antenna assembly and housing for electronic device |
-
2000
- 2000-04-03 EP EP00934860A patent/EP1090437B1/en not_active Expired - Lifetime
- 2000-04-03 WO PCT/DE2000/001023 patent/WO2000065684A2/en active IP Right Grant
- 2000-04-03 CN CNB008006423A patent/CN1162940C/en not_active Expired - Fee Related
- 2000-04-03 DE DE50000439T patent/DE50000439D1/en not_active Expired - Fee Related
- 2000-12-21 US US09/745,542 patent/US6501438B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58137206A (en) * | 1982-02-09 | 1983-08-15 | Sony Corp | Inductance element |
| EP0893841A1 (en) * | 1997-07-23 | 1999-01-27 | Matsushita Electric Industrial Co., Ltd. | Helical coil, method of producing same and helical antenna using same |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 007, no. 251 (E - 209) 8 November 1983 (1983-11-08) * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000065684A3 (en) | 2001-03-01 |
| CN1310868A (en) | 2001-08-29 |
| US6501438B2 (en) | 2002-12-31 |
| EP1090437A1 (en) | 2001-04-11 |
| DE50000439D1 (en) | 2002-10-10 |
| CN1162940C (en) | 2004-08-18 |
| US20010005183A1 (en) | 2001-06-28 |
| WO2000065684A2 (en) | 2000-11-02 |
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