DE19929689A1 - Integrable dual band antenna - Google Patents

Integrable dual band antenna

Info

Publication number
DE19929689A1
DE19929689A1 DE19929689A DE19929689A DE19929689A1 DE 19929689 A1 DE19929689 A1 DE 19929689A1 DE 19929689 A DE19929689 A DE 19929689A DE 19929689 A DE19929689 A DE 19929689A DE 19929689 A1 DE19929689 A1 DE 19929689A1
Authority
DE
Germany
Prior art keywords
antenna
antenna according
pifa
indicates
rectangular
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.)
Withdrawn
Application number
DE19929689A
Other languages
German (de)
Inventor
Sheng-Gen Pan
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.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to DE19929689A priority Critical patent/DE19929689A1/en
Priority to CA002377921A priority patent/CA2377921A1/en
Priority to BR0012088-0A priority patent/BR0012088A/en
Priority to JP2001508541A priority patent/JP2003504902A/en
Priority to CN00809656A priority patent/CN1359552A/en
Priority to PCT/DE2000/001756 priority patent/WO2001003238A1/en
Priority to HU0201805A priority patent/HUP0201805A2/en
Priority to KR1020017016807A priority patent/KR20020011141A/en
Priority to EP00943654A priority patent/EP1192683A1/en
Publication of DE19929689A1 publication Critical patent/DE19929689A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • 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
    • H01Q19/005—Patch antenna using one or more coplanar parasitic elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • 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
    • 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
    • H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
    • 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
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element

Abstract

The invention relates to an integrable dual-band antenna. Said antenna consists of an essentially rectangular overall surface that is located over a ground surface. Said overall surface consists of an L-shaped PIFA antenna and a rectangular PIFA antenna for emitting two independent frequencies. The PIFA antennae have three or four connections, which are connected by lines to two contact points.

Description

Die vorliegende Erfindung betrifft eine integrierbare Dual­ band-Antenne.The present invention relates to an integrable dual band antenna.

Bei Mobilfunkgeräten gibt es aus Designgründen spezielle An­ forderungen an die Antenne. Insbesondere soll es möglich sein, die Antenne in das Gehäuse nach außen unsichtbar inte­ grieren zu können. Gleichzeitig soll diese in mindestens zwei verschiedenen Frequenzbereichen nutzbar und kostengünstig herstellbar sein.There are special types of mobile devices for design reasons demands on the antenna. In particular, it should be possible be, the antenna in the housing invisible to the outside inte to be able to grin. At the same time this should be in at least two different frequency ranges usable and inexpensive be producible.

Bisher sind die meisten Antennen von Mobilfunkgeräten Staban­ tennen, d. h. von außen sichtbare Antennen. Eine integrierte Antenne ist z. B. aus WO 95/24745 bekannt. Jedoch ist diese bekannte Technologie sehr teuer und die Antenne ist so groß, daß sie in den aktuellen Geräten keinen Platz finden würde.So far, most antennas of cellular devices have been staban tennen, d. H. Antennas visible from the outside. An integrated Antenna is e.g. B. from WO 95/24745. However, this is known technology very expensive and the antenna is so big that it would find no place in the current devices.

Aufgabe der vorliegenden Erfindung ist es, eine Antenne der eingangs genannten Art anzugeben, welche keinen Stummel auf­ weist, in Kommunikationsendgerätegehäuse integrierbar ist und die geforderte Dualbandfähigkeit besitzt.The object of the present invention is to provide an antenna Specify the type mentioned above, which no stub on points, can be integrated in communication terminal housing and has the required dual-band capability.

Zur Lösung dieser Aufgabe besteht die eingangs genannte An­ tenne aus einer über einer Massefläche liegenden und im we­ sentlichen rechteckförmigen Gesamtfläche, welche zur Abstrah­ lung zweier unabhängiger Frequenzen aus einer L-förmigen PIFA-Antenne und einer rechteckförmigen PIFA-Antenne besteht, wobei-die PIFA-Antennen drei oder vier Anschlüsse aufweisen, die über Leitungen mit zwei Kontaktpunkten verbunden sind.To solve this problem, there is the aforementioned tenne from a lying above a ground and in the we substantial rectangular total area, which for abstrah two independent frequencies from an L-shaped PIFA antenna and a rectangular PIFA antenna, the PIFA antennas have three or four connections, which are connected to two contact points via cables.

Das oben angesprochene Problem wird erfindungsgemäß durch den Einsatz einer Antenne gelöst, die aus einer räumlichen Ver­ schachtelung von zwei PIFA (Planar Inverted F-Antenna) Anten­ nenstrukturen besteht, die durch spezielle Leitungsstrukturen miteinander verbunden sind. Dadurch entsteht eine kleine räumliche Struktur, die für Dualbandanwendungen geeignet ist und sich an ein aus nicht ebenen Flächen bzw. abgerundeten Kanten bestehenden Gehäuse anpassen kann. Die Antenne läßt sich insbesondere auch in der Nähe, d. h. in einigen Millime­ ter Abstand, von unvermeidlichen Metallflächen, welche übli­ cherweise die metallische Abschirmung der Elektronik bilden, betreiben.According to the invention, the problem mentioned above is solved by the Use of an antenna solved from a spatial Ver Nesting of two PIFA (Planar Inverted F-Antenna) antennas structures that exist through special management structures  are interconnected. This creates a small one spatial structure that is suitable for dual-band applications and to one of non-flat or rounded surfaces Edges can adapt existing housing. The antenna leaves especially in the vicinity, d. H. in a few millimes distance from inevitable metal surfaces, which are common form the metallic shield of the electronics, operate.

Die für die Herstellung verwendbare Standardtechnologie des Stanzens und Biegens von Blechteilen läßt extrem hohe Ferti­ gungsgeschwindigkeiten zu und es ergeben sich somit geringe Herstellungskosten. Außerdem können darüberhinaus auch die Herstellungskosten der Antennenkontaktfeder, die den Kontakt zwischen Antenne und Elektronik des Gerätes herstellen, ge­ spart werden, da die Antennenfeder als integrierter Teil der Antenne in einem Produktionsprozeß hergestellt werden kann.The standard technology of the Stamping and bending sheet metal parts leaves extremely high produc supply speeds and thus there are low Manufacturing costs. In addition, the Manufacturing cost of the antenna contact spring that the contact between antenna and electronics of the device, ge be saved because the antenna spring as an integrated part of the Antenna can be manufactured in a production process.

Durch eine Optimierung ist es möglich, daß die Antenne nahe ihrer ersten Resonanzfrequenz für eines der Zielfrequenzbän­ der (z. B. GSM) einsetzbar ist und nahe der zweiten Resonanz­ frequenz so breitbandig arbeitet, daß damit ein Einsatz bei einem weiteren Frequenzband möglich ist (z. B. PCN oder PCS). Darüber hinaus ist es möglich, gleichzeitig eine Nennimpedanz von etwa 50 Ohm zu realisieren, so daß die Antenne ohne An­ paßnetzwerk oder mit einer geringen Anzahl von Anpaßelementen betrieben werden kann. Dies hat wiederum zur Folge, daß die in Anpaßschaltungen immer auftretenden Verluste vermieden werden können.By optimizing it is possible that the antenna is close their first resonance frequency for one of the target frequency bands which (e.g. GSM) can be used and is close to the second resonance frequency works so broadband that it can be used for another frequency band is possible (e.g. PCN or PCS). In addition, it is possible to have a nominal impedance at the same time of about 50 ohms so that the antenna without an pass network or with a small number of adjustment elements can be operated. This in turn means that the Avoiding losses always occurring in adapter circuits can be.

Der erfinderische Schritt liegt darin, die unvermeidliche Verkopplung der beiden Teilbereiche so zu berücksichtigen, daß das Gesamtsystem in mehreren Frequenzbändern betrieben werden kann. Dazu wird eine spezielle Speisung der Antenne verwendet, bei der drei oder vier Kontakte an den strahlenden Flächen auf zwei Kontaktpunkte abgebildet werden. The inventive step is the inevitable Coupling of the two sub-areas to be taken into account that the entire system is operated in several frequency bands can be. For this, a special feed to the antenna used with three or four contacts on the radiating Areas are mapped onto two contact points.  

Weitere zweckmäßige Weiterbildungen der erfindungsgemäßen An­ tenne ergeben sich aus den Unteransprüchen sowie der nachfol­ genden Beschreibung eines Ausführungsbeispiels der erfin­ dungsgemäßen Antenne.Further expedient developments of the invention Tenne arise from the subclaims and the successor ing description of an embodiment of the inventions proper antenna.

Nachfolgend soll die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher beschrieben werden.The invention is intended to be described below with reference to a drawing illustrated embodiment are described in more detail.

Es zeigenShow it

Fig. 1 eine schematische Darstellung einer ersten Ausfüh­ rungsform der vorliegenden Erfindung, Fig. 1 is a schematic representation of a first exporting approximately of the present invention,

Fig. 2 eine schematische Darstellung einer zweiten Ausfüh­ rungsform der vorliegenden Erfindung, und Fig. 2 is a schematic representation of a second embodiment of the present invention, and

Fig. 3 bis 4 perspektivische Ansichten von konkreten Aus­ führungsformen der erfindungsgemäßen Antenne. FIGS. 3 to 4 are perspective views of concrete from the antenna of the invention EMBODIMENTS.

Bei den in Fig. 1 und Fig. 2 dargestellten Ausführungsfor­ men sind die beiden dargestellten Teilstrukturen S1 und S2 jeweils durch eine Leitung L1 an definierten Anschlußstellen P1 und P2 miteinander verbunden. Dabei ist die Teilstruktur S1 im wesentlichen L-förmig ausgebildet, während die Teil­ struktur S2 im wesentlichen rechteckförmig ausgebildet ist.Men in the illustrated in Fig. 1 and Fig. 2 Ausführungsfor the two partial structures shown S1 and S2 are connected to each other through a line L1 at defined connecting points P1 and P2. The substructure S1 is essentially L-shaped, while the substructure S2 is essentially rectangular.

Zusätzlich sind zwei weitere Anschlußstellen P3 und P4 mit­ tels einer zweiten Leitung L2 miteinander verbunden.In addition, two further connection points P3 and P4 are included connected together by a second line L2.

An zwei festgelegten Stellen sind an diesen Leitungen die beiden Kontakte K1 und K2 realisiert.There are two lines on these lines realized two contacts K1 and K2.

Es entsteht somit eine Antenne aus zwei parallel geschalteten Teilbereichen mit einem zweipoligen Anschlußkontakt.The result is an antenna made up of two connected in parallel Areas with a two-pole connection contact.

Die Antenne besteht aus zwei unterschiedlichen Flächenstruk­ turen bzw. Patches. Dabei arbeitet das L-förmige Patch haupt­ sächlich im GSM-Band und das näherungsweise rechteckförmige Patch arbeitet vornehmlich im PCN-Band. Daher kann das Ge­ samtsystem durch die Leitungsverbindungen der zwei Patches in zwei oder mehreren Bändern betrieben werden.The antenna consists of two different surface structures structures or patches. The L-shaped patch works at all  essentially in the GSM band and approximately rectangular Patch mainly works in the PCN band. Therefore the Ge entire system through the line connections of the two patches in two or more belts are operated.

Die beiden Antennenpatches S1 und S2 sind durch die Leitungen L1 und L2 miteinander verbunden. Die Leitung L1 kann auch durch einen kurzen und breiten Metallstreifen und aus Teilen der Patches gebildet werden (siehe hierzu Fig. 2).The two antenna patches S1 and S2 are connected to one another by lines L1 and L2. The line L1 can also be formed by a short and wide metal strip and from parts of the patches (see FIG. 2).

Die Anschlußstellen P1 und P2 liegen normalerweise in gegen­ überliegenden Ecken der beiden Patches S1 und S2. Die Abstän­ de zwischen den Anschlußstellen P4 und P1 auf dem Patch S1 und zwischen den Anschlußstellen P2 und P3 auf dem Patch S2 legen im wesentlichen Maß die Eingangsimpedanz der Antenne fest.The connection points P1 and P2 are normally in opposite overlying corners of the two patches S1 and S2. The distances de between the connection points P4 and P1 on the patch S1 and between the connection points P2 and P3 on the patch S2 essentially determine the input impedance of the antenna firmly.

K1 und K2 sind unter anderem durch die Eingangsimpedanz der Antenne und hauptsächlich durch das Layout der Leiterplatte festgelegt. Ein Kontakt wird mit der Masse der Leiterplatte verbunden und der andere Kontakt wird mit dem Eingang des Senders bzw. des Empfängers der Elektronik des Mobilfunkgerä­ tes verbunden.K1 and K2 are among other things due to the input impedance Antenna and mainly through the layout of the circuit board fixed. A contact is made with the bulk of the circuit board connected and the other contact is connected to the input of the Transmitter or the receiver of the electronics of the mobile radio connected.

Durch die Elektronik des Mobilfunkgerätes ist die Impedanz (typisch sind 50 Ohm) definiert. Anhand von Berechnungen wer­ den die Positionen der Anschlußstellen P3 und P4 so gewählt, daß die Impedanz der Elektronik und der Antenne konjungiert komplex zueinander sind.The impedance is due to the electronics of the mobile device (typically 50 ohms) are defined. Using calculations who the positions of the connection points P3 and P4 are selected so that the impedance of the electronics and the antenna conjugate are complex to each other.

Die Fig. 3 bis 5 zeigen konkrete Ausführungsformen der vorliegenden Erfindung, wie sie zum Beispiel in ein Mobil­ funkgerät einbaubar sind. FIGS. 3 to 5 show specific embodiments of the present invention as radio device, for example, in a mobile can be installed.

Claims (7)

1. Integrierbare Dualband-Antenne, gekennzeichnet durch eine über einer Massefläche liegenden und im wesentli­ chen rechteckförmigen Gesamtfläche, welche zur Abstrahlung zweier unabhängiger Frequenzen aus einer L-förmigen PIFA- Antenne und einer rechteckförmigen PIFA-Antenne besteht, wobei die PIFA-Antennen drei oder vier Anschlüsse aufweisen, die über Leitungen mit zwei Kontaktpunkten verbunden sind.1. Integrable dual-band antenna, characterized by a lying over a ground surface and in wesentli Chen rectangular overall area, which consists of an L-shaped PIFA antenna and a rectangular PIFA antenna for radiating two independent frequencies, the PIFA antennas three or have four connections, which are connected via lines to two contact points. 2. Antenne nach Anspruch 1, dadurch gekennzeichnet, daß in den flächenhaften Strukturen Löcher und Ausnehmungen vorhanden sind.2. Antenna according to claim 1, characterized in that holes and recesses in the flat structures available. 3. Antenne nach Anspruch 1 oder 2, dadurch gekenn­ zeichnet, daß die flächenhaften Strukturen Knicke und Biegungen aufweisen.3. Antenna according to claim 1 or 2, characterized shows that the flat structures kinks and Have bends. 4. Antenne nach einem der Ansprüche 1 bis 3, dadurch ge­ kennzeichnet, daß die Leitung L1 und/oder L2 derart in die flächenhafte Struktur integriert sind, daß eine Herstel­ lung aus nur einem Teil möglich ist.4. Antenna according to one of claims 1 to 3, characterized ge indicates that the line L1 and / or L2 in the areal structure is integrated that a manuf only one part is possible. 5. Antenne nach einem der Ansprüche 1 bis 4, dadurch ge­ kennzeichnet, daß die Elemente zur Bildung der Kontakte K1 und K2 derart angeordnet sind, daß eine Herstellung aus nur einem Teil möglich ist.5. Antenna according to one of claims 1 to 4, characterized ge indicates that the elements to form the contacts K1 and K2 are arranged such that a production from only a part is possible. 6. Antenne nach einem der Ansprüche 1 bis 5, dadurch ge­ kennzeichnet, daß die Elemente zur Bildung der Kontakte und Leitungen derart angeordnet sind, daß eine Herstellung in einem gemeinsamen Prozeß möglich ist.6. Antenna according to one of claims 1 to 5, characterized ge indicates that the elements to form the contacts and lines are arranged such that a production in a common process is possible. 7. Antenne nach einem der Ansprüche 1 bis 6, dadurch ge­ kennzeichnet, daß die Punkte P1 bis P4 an unterschied­ lichen Kanten der flächenhaften Strukturen liegen.7. Antenna according to one of claims 1 to 6, characterized ge indicates that points P1 to P4 differed edges of the two-dimensional structures.
DE19929689A 1999-06-29 1999-06-29 Integrable dual band antenna Withdrawn DE19929689A1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DE19929689A DE19929689A1 (en) 1999-06-29 1999-06-29 Integrable dual band antenna
CA002377921A CA2377921A1 (en) 1999-06-29 2000-05-30 Integrable dual-band antenna
BR0012088-0A BR0012088A (en) 1999-06-29 2000-05-30 Integrable dual band antenna
JP2001508541A JP2003504902A (en) 1999-06-29 2000-05-30 Integrated dual band antenna
CN00809656A CN1359552A (en) 1999-06-29 2000-05-30 Integrable dual-band antenna
PCT/DE2000/001756 WO2001003238A1 (en) 1999-06-29 2000-05-30 Integrable dual-band antenna
HU0201805A HUP0201805A2 (en) 1999-06-29 2000-05-30 Integrable dual-band antenna
KR1020017016807A KR20020011141A (en) 1999-06-29 2000-05-30 Integrable dual-band antenna
EP00943654A EP1192683A1 (en) 1999-06-29 2000-05-30 Integrable dual-band antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19929689A DE19929689A1 (en) 1999-06-29 1999-06-29 Integrable dual band antenna

Publications (1)

Publication Number Publication Date
DE19929689A1 true DE19929689A1 (en) 2001-01-11

Family

ID=7912888

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19929689A Withdrawn DE19929689A1 (en) 1999-06-29 1999-06-29 Integrable dual band antenna

Country Status (9)

Country Link
EP (1) EP1192683A1 (en)
JP (1) JP2003504902A (en)
KR (1) KR20020011141A (en)
CN (1) CN1359552A (en)
BR (1) BR0012088A (en)
CA (1) CA2377921A1 (en)
DE (1) DE19929689A1 (en)
HU (1) HUP0201805A2 (en)
WO (1) WO2001003238A1 (en)

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KR20020011141A (en) 2002-02-07
CA2377921A1 (en) 2001-01-11
JP2003504902A (en) 2003-02-04
EP1192683A1 (en) 2002-04-03
BR0012088A (en) 2002-05-28
WO2001003238A1 (en) 2001-01-11
CN1359552A (en) 2002-07-17
HUP0201805A2 (en) 2003-01-28

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