EP0511577A2 - Compact, in particular portable radio transceiver with retractable or collapsible antenna - Google Patents

Compact, in particular portable radio transceiver with retractable or collapsible antenna Download PDF

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Publication number
EP0511577A2
EP0511577A2 EP92106818A EP92106818A EP0511577A2 EP 0511577 A2 EP0511577 A2 EP 0511577A2 EP 92106818 A EP92106818 A EP 92106818A EP 92106818 A EP92106818 A EP 92106818A EP 0511577 A2 EP0511577 A2 EP 0511577A2
Authority
EP
European Patent Office
Prior art keywords
antenna
integrated
rod antenna
rod
folded
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.)
Granted
Application number
EP92106818A
Other languages
German (de)
French (fr)
Other versions
EP0511577B1 (en
EP0511577A3 (en
Inventor
Thomas Dipl.-Ing. Molière
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
Publication of EP0511577A2 publication Critical patent/EP0511577A2/en
Publication of EP0511577A3 publication Critical patent/EP0511577A3/en
Application granted granted Critical
Publication of EP0511577B1 publication Critical patent/EP0511577B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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

Definitions

  • the invention relates to a radio of the type described in the preamble of claim 1.
  • the rod antennas of compact radio devices can generally be retracted or retracted. If the device is to remain ready for operation in this state (standby mode), an antenna (auxiliary antenna) integrated in the device must be provided in addition to the rod antenna (main antenna), since the recessed or folded main antenna is strongly detuned and at least partially shielded and therefore unusable is.
  • auxiliary antenna integrated in the device
  • main antenna rod antenna
  • Known solutions with an integrated antenna have the disadvantage that the latter interferes with the function of the main antenna by removing energy from it. Conversely, the main antenna interferes with the function of the integrated auxiliary antenna when it is sunk.
  • Another disadvantage is that the integrated auxiliary antenna requires a not inconsiderable installation volume.
  • the invention has for its object to eliminate the disadvantages listed above and to provide a compact radio with integrated auxiliary antenna, which enables standby operation with the rod antenna retracted or folded down, the mutual interference of the auxiliary antenna and rod antenna being as small as possible should.
  • the handheld radio shown in FIGS. 1 and 2 which is denoted overall by 1, has a rod antenna 2 functioning as the main antenna, at the base of which there is a feed part 3.
  • the upper end region of the antenna 2 consists of an insulating part 4.
  • the antenna 2 can be sunk with its feed part 3 in a receiving space 5 provided in the handheld radio 1.
  • This recording room 5 opens with its upper end region in a conical housing extension 6, which is made of plastic.
  • This conical extension 6 is hollow, so that the feed part 3 of the antenna 2 is received in it when the antenna 2 is pulled out completely.
  • An integrated auxiliary antenna 7 is embedded in the material of the attachment 6, which is designed in a helical or meandering shape and is mechanically and electrically decoupled from the radio (for example by design as a half-wave radiator).
  • the feed point of the integrated antenna 7 is designated 8.
  • the connection between its feed part 3 and its feed point denoted by 9 is interrupted.
  • the device is switched to the integrated antenna 7.
  • the integrated antenna 7 is not disturbed by the inserted rod antenna 2, since its upper end area 4 consists of insulating material.
  • the integrated antenna 7 is detuned by the spatial proximity of the antenna radiator or base point so that it cannot exert any disruptive influence.
  • the integrated antenna designated 7 ' serves as an electrical adapter for the main antenna 2'.
  • the feed part 3 connected to the lower end region of the antenna 2 of FIGS. 1 and 2 can be omitted.
  • the feed takes place in the device of Figure 3 via a z. B. formed as a transformer feed element 10, which is provided for the integrated antenna 7 'and the rod antenna 2' together.
  • the rod antenna 2 ' is pulled out, its base point is capacitively or galvanically coupled to the upper end of the integrated antenna 7'.
  • the integrated antenna 7 ' discontinues to radiate when the rod antenna 2' is extended, this results in a less favorable radiation diagram and a less large antenna gain, in contrast to the embodiment in FIGS. 1 and 2.

Abstract

A portable radio transceiver with retractable or foldable rod antenna (2; 2') and additional integrated auxiliary antenna (7; 7') which, when the rod antenna is retracted or folded, ensures at least emergency operation of the set. The integrated antenna is constructed on a conical housing projection (6), the internal space of which is connected to the receiving space (5) for accommodating the retracted or folded rod antenna. The part (4) of the rod antenna which is located in the said housing projection (6) when the rod antenna is retracted or folded over consists of insulating material so that it then does not impair the operation of the integrated antenna (6; 6'). When the rod antenna is pulled out or folded out, the feed section (3) arranged at its base is located within the housing projection (6) so that it detunes the integrated antenna (7) to such an extent that it cannot exert any interfering influence. <IMAGE>

Description

Die Erfindung betrifft ein Funkgerät der im Oberbegriff des Patentanspruchs 1 beschriebenen Art.The invention relates to a radio of the type described in the preamble of claim 1.

Aus Gründen der Raumersparnis und um eine Beschädigungsgefahr zu vermeiden, sind die Stabantennen von kompakten Funkgeräten in der Regel versenkbar oder einklappbar. Falls in diesem Zustand das Gerät betriebsbereit bleiben soll (Stand by-Betrieb) muß neben der Stabantenne (Hauptantenne) eine in dem Gerät integrierte Antenne (Hilfsantenne) vorgesehen sein, da die versenkte oder umgeklappte Hauptantenne elektrisch stark verstimmt und zumindest teilweise abgeschirmt und damit unbrauchbar ist. Bekannte Lösungen mit integrierter Antenne haben den Nachteil, daß letztere die Funktion der Hauptantenne stört, indem sie ihr Energie entzieht. Umgekehrt stört die Hauptantenne die integrierte Hilfsantenne in ihrer Funktion, wenn sie versenkt wird. Ein weiterer Nachteil besteht darin, daß die integrierte Hilfsantenne ein nicht unerhebliches Einbauvolumen benötigt.In order to save space and to avoid damage, the rod antennas of compact radio devices can generally be retracted or retracted. If the device is to remain ready for operation in this state (standby mode), an antenna (auxiliary antenna) integrated in the device must be provided in addition to the rod antenna (main antenna), since the recessed or folded main antenna is strongly detuned and at least partially shielded and therefore unusable is. Known solutions with an integrated antenna have the disadvantage that the latter interferes with the function of the main antenna by removing energy from it. Conversely, the main antenna interferes with the function of the integrated auxiliary antenna when it is sunk. Another disadvantage is that the integrated auxiliary antenna requires a not inconsiderable installation volume.

Zur Beseitigung dieser Nachteile ist es vorstellbar, die versenkbare Stabantenne so anzuordnen, daß ihre Funktion in versenktem oder umgeklapptem Zustand zumindest teilweise erhalten bleibt, indem man dafür Sorge trägt, daß sie sich in versenktem oder umgeklapptem Zustand nicht in der Nähe elektrisch leitender Strukturen befindet. Eine solche Lösung benötigt jedoch zusätzlichen Einbauraum und ist deshalb für kompakte Funkgeräte, insbesondere für Handfunkgeräte, wenig geeignet.To overcome these disadvantages, it is conceivable to arrange the retractable rod antenna so that its function in the retracted or folded state is at least partially maintained by ensuring that it is not in the vicinity of electrically conductive structures in the retracted or folded state. However, such a solution requires additional installation space and is therefore not very suitable for compact radio devices, in particular for handheld radio devices.

Es ist bekannt, die integrierte Antenne (Hilfsantenne) so auszubilden und anzuordnen, daß eine Polarisationsentkopplung gegenüber der Hauptantenne gegeben ist. Diese Lösung hat allerdings den Nachteil, daß die Strahlung der integrierten Antenne das Funkgerät störend beeinflussen kann.It is known that the integrated antenna (auxiliary antenna) to train and arrange that there is a polarization decoupling from the main antenna. However, this solution has the disadvantage that the radiation from the integrated antenna can interfere with the radio.

Der Erfindung liegt die Aufgabe zugrunde, die vorangehend aufgeführten Nachteile zu beseitigen und ein kompaktes Funkgerät mit integrierter Hilfsantenne zu schaffen, die bei versenkter oder umgeklappter Stabantenne einen Stand by-Betrieb ermöglicht, wobei die gegenseitige störende Beeinflussung von Hilfsantenne und Stabantenne so klein wie möglich sein soll.The invention has for its object to eliminate the disadvantages listed above and to provide a compact radio with integrated auxiliary antenna, which enables standby operation with the rod antenna retracted or folded down, the mutual interference of the auxiliary antenna and rod antenna being as small as possible should.

Die Lösung dieser Aufgabe ergibt sich aus Patentanspruch 1.The solution to this problem results from patent claim 1.

Vorteilhafte Weiterbildungen und Alternativen der Erfindung sind in den Unteransprüchen angegeben, auf die hiermit zur Verkürzung der Beschreibung ausdrücklich verwiesen wird.Advantageous further developments and alternatives of the invention are specified in the subclaims, to which express reference is hereby made to shorten the description.

Im folgenden sei die Erfindung anhand der Zeichnungen näher erläutert:

Figur 1
zeigt in schematischer Darstellung Einzelheiten eines Handfunkgeräts gemäß der Erfindung, wobei die als Hauptantenne fungierende Stabantenne versenkt ist,
Figur 2
zeigt das Gerät von Figur 1, wobei die Stabantenne jedoch herausgezogen ist,
Figur 3
zeigt eine alternative Ausführungsform eines Funkgeräts gemäß der Erfindung.
The invention is explained in more detail below with reference to the drawings:
Figure 1
shows a schematic representation of details of a handheld radio according to the invention, the rod antenna functioning as the main antenna being sunk,
Figure 2
shows the device of Figure 1, but the rod antenna is pulled out,
Figure 3
shows an alternative embodiment of a radio according to the invention.

Das in Figur 1 und 2 dargestellte Handfunkgerät, das insgesamt mit 1 bezeichnet ist, besitzt eine als Hauptantenne fungierende Stabantenne 2, an deren Fuß sich ein Einspeisungsteil 3 befindet. Der obere Endbereich der Antenne 2 besteht aus einem Isolierstoffteil 4. Die Antenne 2 kann mit ihrem Einspeisungsteil 3 in einem in dem Handfunkgerät 1 vorgesehenen Aufnahmeraum 5 versenkt werden. Dieser Aufnahmeraum 5 mündet mit seinem oberen Endbereich in einem konischen Gehäuseansatz 6, der aus Kunststoff besteht. Dieser konische Ansatz 6 ist hohl, so daß das Einspeisungsteil 3 der Antenne 2 in ihm aufgenommen ist, wenn die Antenne 2 ganz herausgezogen ist. In dem Material des Ansatzes 6 ist eine integrierte Hilfsantenne 7 eingebettet, die in Wendel- oder Mäanderform ausgeführt und mechanisch und elektrisch (z. B. durch Ausführung als Halbwellenstrahler) vom Funkgerät entkoppelt ist. Der Einspeisepunkt der integrierten Antenne 7 ist mit 8 bezeichnet.The handheld radio shown in FIGS. 1 and 2, which is denoted overall by 1, has a rod antenna 2 functioning as the main antenna, at the base of which there is a feed part 3. The upper end region of the antenna 2 consists of an insulating part 4. The antenna 2 can be sunk with its feed part 3 in a receiving space 5 provided in the handheld radio 1. This recording room 5 opens with its upper end region in a conical housing extension 6, which is made of plastic. This conical extension 6 is hollow, so that the feed part 3 of the antenna 2 is received in it when the antenna 2 is pulled out completely. An integrated auxiliary antenna 7 is embedded in the material of the attachment 6, which is designed in a helical or meandering shape and is mechanically and electrically decoupled from the radio (for example by design as a half-wave radiator). The feed point of the integrated antenna 7 is designated 8.

Wenn die Stabantenne 2 in das Gerät eingeschoben wird, wird die Verbindung zwischen ihrem Einspeisungsteil 3 und ihrem mit 9 bezeichneten Einspeisepunkt unterbrochen. Gleichzeitig wird das Gerät auf die integrierte Antenne 7 umgeschaltet. Die intergrierte Antenne 7 wird durch die eingeschobene Stabantenne 2 nicht gestört, da deren oberer Endbereich 4 aus Isolierwerkstoff besteht.When the rod antenna 2 is inserted into the device, the connection between its feed part 3 and its feed point denoted by 9 is interrupted. At the same time, the device is switched to the integrated antenna 7. The integrated antenna 7 is not disturbed by the inserted rod antenna 2, since its upper end area 4 consists of insulating material.

Umgekehrt wird bei herausgezogener Hauptantenne 2 die integrierte Antenne 7 durch die räumliche Nähe des Antennenstrahlers oder -fußpunkts so verstimmt, daß sie keinen störenden Einfluß ausüben kann.Conversely, when the main antenna 2 is pulled out, the integrated antenna 7 is detuned by the spatial proximity of the antenna radiator or base point so that it cannot exert any disruptive influence.

Bei der in Figur 3 dargestellten Ausführungsform der Erfindung dient die mit 7' bezeichnete integrierte Antenne als elektrisches Anpassungsglied für die Hauptantenne 2'. In diesem Fall kann das mit dem unteren Endbereich der Antenne 2 von Figur 1 und 2 verbundene Einspeisungsteil 3 entfallen. Die Einspeisung erfolgt bei dem Gerät von Figur 3 über ein z. B. als Transformator ausgebildetes Einspeisungsglied 10, das für die integrierte Antenne 7' und die Stabantenne 2' gemeinsam vorgesehen ist. Wenn die Stabantenne 2' herausgezogen ist, ist ihr Fußpunkt mit dem oberen Ende der integrierten Antenne 7' kapazitiv oder galvanisch gekoppelt. Bei der in Figur 3 dargestellten Ausführungsform ist eine Umschaltung zwischen den Einspeisepunkten beider Antennen also nicht erforderlich. Da jedoch bei der Ausführungsform nach Figur 3 die integrierte Antenne 7' bei ausgezogener Stabantenne 2' weiterhin strahlt, ergibt sich - im Gegensatz zur Ausführungsform von Figur 1 und 2 - ein weniger günstiges Strahlungsdiagramm und ein weniger großer Antennengewinn.In the embodiment of the invention shown in FIG. 3, the integrated antenna designated 7 'serves as an electrical adapter for the main antenna 2'. In this case, the feed part 3 connected to the lower end region of the antenna 2 of FIGS. 1 and 2 can be omitted. The feed takes place in the device of Figure 3 via a z. B. formed as a transformer feed element 10, which is provided for the integrated antenna 7 'and the rod antenna 2' together. When the rod antenna 2 'is pulled out, its base point is capacitively or galvanically coupled to the upper end of the integrated antenna 7'. In the embodiment shown in Figure 3 is a switch between the Feed points of both antennas are therefore not necessary. However, since in the embodiment according to FIG. 3 the integrated antenna 7 'continues to radiate when the rod antenna 2' is extended, this results in a less favorable radiation diagram and a less large antenna gain, in contrast to the embodiment in FIGS. 1 and 2.

Im übrigen löst jedoch auch das in Figur 3 dargestellte Gerät die oben angegebene Erfindungsaufgabe.For the rest, however, the device shown in FIG. 3 also solves the inventive task specified above.

Claims (7)

Kompaktes Funkgerät, insbesondere Handfunkgerät, mit einer versenkbaren oder umklappbaren Stabantenne (Hauptantenne) (2; 2') und einer in das Gerät integrierten Antenne (Hilfsantenne) (7; 7'), die bei versenkter oder umgeklappter Hauptantenne zumindest eine eingeschränkte Funktion des Geräts ermöglicht,
dadurch gekennzeichnet,
daß derjenige Teil des in dem Gehäuse des Geräts (1, 1') vorgesehenen Aufnahmeraums (5) zur Aufnahme der versenkten oder umgeklappten Hauptantenne (2, 2'), in welchem sich der Fußpunkt der Hauptantenne befindet, wenn diese ausgezogen bzw. herausgeklappt ist, innerhalb eines die benachbarten Teile des Gehäuses des Funkgeräts überragenden Gehäuseansatzes (6) aus Isolierwerkstoff liegt,
daß die integrierte Antenne (7; 7') in diesem Gehäuseansatz (6) angeordnet ist,
und daß derjenige Teil (4) der Stabantenne (2; 2'), der sich bei versenkter bzw. eingeklappter Stabantenne in dem genannten Gehäuseansatz (6) befindet, aus Isolierwerkstoff besteht.Compact radio, in particular a handheld radio, with a retractable or foldable rod antenna (main antenna) (2; 2 ') and an antenna (auxiliary antenna) (7; 7') integrated in the device, which at least has a restricted function of the device when the main antenna is retracted or folded down enables
characterized,
that the part of the receiving space (5) provided in the housing of the device (1, 1 ') for receiving the sunken or folded main antenna (2, 2'), in which the base point of the main antenna is when it is extended or folded out is located within a housing attachment (6) made of insulating material, which projects beyond the neighboring parts of the housing of the radio,
that the integrated antenna (7; 7 ') is arranged in this housing extension (6),
and that that part (4) of the rod antenna (2; 2 ') which is located in the housing extension (6) when the rod antenna is retracted or folded in consists of insulating material. Gerät nach Anspruch 1,
dadurch gekennzeichnet,
daß die Außenform des Gehäuseansatzes (6) ein sich zur Außenseite hin verjüngender Konus ist.Device according to claim 1,
characterized,
that the outer shape of the housing extension (6) is a cone tapering towards the outside. Gerät nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß die integrierte Antenne ein verkürzter Halbwellenstrahler ist.Device according to claim 1 or 2,
characterized,
that the integrated antenna is a shortened half-wave radiator. Gerät nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß die integrierte Antenne als wendel- oder mäanderförmige Leiterstruktur ausgebildet und in dem Material des Gehäuseansatzes (6) eingebettet ist.Device according to one of claims 1 to 3,
characterized,
that the integrated antenna is designed as a helical or meandering conductor structure and is embedded in the material of the housing extension (6). Gerät nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß am unteren Ende der Stabantenne (2) ein Einspeisungsteil (3) angeordnet ist, das bei ausgezogener Stabantenne (2) mit einem in dem oberen Endbereich des genannten Aufnahmeraums (5) vorgesehenen Einspeisepunkt (9) in Kontakt tritt.Device according to one of the preceding claims,
characterized,
that at the lower end of the rod antenna (2) there is a feed part (3) which, when the rod antenna (2) is pulled out, comes into contact with a feed point (9) provided in the upper end region of said receiving space (5). Gerät nach Anspruch 5,
dadurch gekennzeichnet,
daß das Einspeisungsteil (3) der Stabantenne (2) bei ausgezogener Stabantenne (2) den Innenraum des genannten Gehäuseansatzes (6) im wesentlichen ausfüllt, so daß die an diesem angebrachte integrierte Antenne (7) derart verstimmt ist, daß sie keinen störenden Einfluß ausüben kann.Device according to claim 5,
characterized,
that the feed part (3) of the rod antenna (2) when the rod antenna (2) is pulled out essentially fills the interior of said housing extension (6) so that the integrated antenna (7) attached to it is detuned in such a way that it does not have any disruptive influence can. Gerät nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß die integrierte Antenne (7') gleichzeitig eine elektrisches Anpassungsglied für die Stabantenne (2') bildet, an das die Stabantenne in ausgezogenem Zustand kapazitiv oder galvanisch angekoppelt ist.Device according to claim 1 or 2,
characterized,
that the integrated antenna (7 ') simultaneously forms an electrical adapter for the rod antenna (2') to which the rod antenna is capacitively or galvanically coupled in the extended state.
EP92106818A 1991-04-30 1992-04-21 Compact, in particular portable radio transceiver with retractable or collapsible antenna Expired - Lifetime EP0511577B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4114194 1991-04-30
DE4114194 1991-04-30

Publications (3)

Publication Number Publication Date
EP0511577A2 true EP0511577A2 (en) 1992-11-04
EP0511577A3 EP0511577A3 (en) 1993-03-24
EP0511577B1 EP0511577B1 (en) 1998-06-24

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AT (1) ATE167769T1 (en)
DE (1) DE59209381D1 (en)

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EP0649181A1 (en) * 1993-10-14 1995-04-19 Alcatel Mobile Communication France Antenna for portable radio apparatus, method for manufacturing the same and portable radio apparatus comprising the same
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US5548827A (en) * 1993-09-16 1996-08-20 Fujitsu Limited Portable radio communication device capable of transmitting the same level of electrical energy when the antenna is stored or extended
EP0803929A1 (en) * 1993-09-16 1997-10-29 Fujitsu Limited Loaded antenna
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Also Published As

Publication number Publication date
EP0511577B1 (en) 1998-06-24
EP0511577A3 (en) 1993-03-24
DE59209381D1 (en) 1998-07-30
ATE167769T1 (en) 1998-07-15

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