EP1218968A1 - Mobile radio transmitting/receiving device comprising a tunable antenna - Google Patents

Mobile radio transmitting/receiving device comprising a tunable antenna

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Publication number
EP1218968A1
EP1218968A1 EP00965835A EP00965835A EP1218968A1 EP 1218968 A1 EP1218968 A1 EP 1218968A1 EP 00965835 A EP00965835 A EP 00965835A EP 00965835 A EP00965835 A EP 00965835A EP 1218968 A1 EP1218968 A1 EP 1218968A1
Authority
EP
European Patent Office
Prior art keywords
antenna
mobile radio
rod
designed
dielectric body
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
EP00965835A
Other languages
German (de)
French (fr)
Other versions
EP1218968B1 (en
Inventor
Matthias Lungwitz
Alfred Deinert
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 EP1218968A1 publication Critical patent/EP1218968A1/en
Application granted granted Critical
Publication of EP1218968B1 publication Critical patent/EP1218968B1/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
    • 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
    • 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
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • 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
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Definitions

  • messages for example voice, image information or other data
  • the electromagnetic waves are radiated by antennas, the carrier frequencies being in the frequency band provided for the respective system.
  • antenna systems which consist of several antennas, each of which covers a specific frequency range.
  • a disadvantage of such antenna systems is, on the one hand, the increased space requirement and, on the other hand, the suboptimal adaptation of the antennas to the individual frequencies from the respective frequency band.
  • the object on which the invention is based is to design a mobile radio transmission / radio reception unit in such a way that, when covering a large frequency range, it ensures an almost constant stable antenna gain.
  • the mobile radio transceiver device has an electrically active antenna body, in the near field of which a dielectric body is movably mounted, so that the dielectric body can be moved in the near field of the antenna body in such a way that the Dimension with which the dielectric body and the electrically active antenna body overlap in the near field is changed.
  • a resonance frequency to be set becomes lower, the greater the degree of overlap in the near field of the antenna body.
  • means are also provided for adjusting the position of the dielectric body. These adjustment means change the position on the basis of at least one control signal which is generated by a control device as an output signal and is forwarded to the adjustment means.
  • the control signal is generated by the control device until the degree of overlap ensures an optimal value of at least one physical quantity representing a function of the transmission / reception quality of the radio transmission / radio reception device, which is detected by detection means and sent to the control device , as an input signal.
  • the main advantage of the mobile radio transmission / reception device is a largely stable antenna gain in a large frequency range, which is achieved by regulating to an optimal value of the size (s) representing the reception quality by moving the dielectric body in the vicinity of the antenna body , in which the degree of overlap of antenna body and dielectric body leaves the radiation characteristic of the antenna almost unaffected and thus a good adaptation over the frequency range is guaranteed.
  • the arrangement has the advantage that the antenna (the antenna body) does not have to be moved, which is of advantage for the construction of the mobile radio transceiver and the external electrical influence is minimized.
  • An essential advantage of the development according to claim 2 is the minimization of a directional electrical influence on the antenna by the user, in particular his head, the radio transmit / receive receiver and vice versa.
  • the development according to claim 3 also enables minimizing undirected external influences, since these have a stronger effect, e greater the electrically effective antenna length of an antenna, the connection of the high-frequency signal being attached simultaneously through the slot running parallel to the longitudinal axis, so that the movement of the dielectric hollow body can take place without hindrance and without changing the length of the feed line of the high-frequency signal.
  • An essential advantage of the development according to claim 4 is the implementation of a simple device for adjusting the position of the dielectric body, which only requires a control signal.
  • An essential advantage of the development according to claim 5 is the implementation of simple adjustment means for the position of the dielectric body, which only require a control signal, the adjustment being carried out in defined steps (step angle).
  • the main advantage of the development according to claim 8 is the high dielectric number that ceramic has, since the frequency range in which the antenna can be tuned and used with it grows proportionally with the high dielectric number of the hollow body used and the acquisition costs are low because Ceramic bodies are produced in large numbers, for example as bodies for resonators.
  • the main advantage of the development according to claim 9 is the possible use of the mobile radio transceiver in a frequency range in which the ratio of the highest to the lowest frequency is at least 1.5 octaves.
  • the detection of the leading transmission power or returning transmission power according to claim 10 as a physical quantity representing a function of the transmission / reception quality of the radio transmission / radio reception device enables simple implementation of the control (adaptation) of the antenna, since in the Radio transmitters / radio receivers can use existing means.
  • FIGURE 1 Mobile radio transmitting / receiving equipment with rod antenna, which is enclosed by a dielectric body designed as a slotted hollow cylinder (in a sectional view), the dielectric body being able to be moved in and out with a controlled electric motor.
  • FIGURE 2 Mobile radio transceiver with rod antenna, in which a dielectric body designed as a rod is arranged parallel to the antenna, the dielectric body being able to be extended and retracted with a controlled electric motor.
  • FIGURE 1 shows a mobile radio transmission / radio reception device SE with a transmission / reception antenna designed as a rod antenna SA, a maximum radio antenna length l max determined by the long rod antenna SA
  • a dielectric body designed as a rod SB is arranged parallel to the longitudinal axis of the rod antenna SA.
  • the distance of the rod should not be too great in relation to the wavelength, since the different phase delays that otherwise occur result in a different radiation characteristic compared to the radiation characteristic customary for rod antennas (monopole antennas).
  • the dielectric body can have any other geometric shape. It is only important that when the dielectric body s near the antenna is imported, the antenna is detuned in such a way that it is tuned to the current frequency.
  • the covered frequency range increases by increasing the volume and increasing the dielectric number of the dielectric body used.
  • the dielectric body must be made of ceramic, for example, since ceramic can have a dielectric constant of 88.
  • the dielectric rod SB is mounted so that it can be moved in and out by a drive wheel AR which is rotated forwards or backwards by an electric motor VM, which is designed, for example, as a stepping motor. He is touched on one side by the drive roller AR and on the opposite side of the point of contact
  • the (step) angle and the direction of rotation are determined by the amount, the sign and / or the duration of a voltage (control signal) U S ⁇ applied to the electric motor VM.
  • This voltage U s ⁇ is a signal (control signal) present at the output of a control unit (microprocessor) ⁇ P, the magnitude, sign and / or signal duration of which depends on the input variable EQ present on the control unit ⁇ P.
  • the control unit ⁇ P controls the electric motor VM using the signal U S ⁇ until a physical input variable EQ representing the reception quality of the radio transceiver SE has reached an ideal value (optimum).
  • the electric motor VM is controlled so that it always drives the drive roller AR at the beginning of the control predetermined direction (default) rotates. If the evaluation shows that the input variable EQ is moving away from the ideal value, the direction of rotation is changed and the electric motor VM is activated until the input variable EQ has reached the ideal value.
  • I ANT , AB is equal to the maximum electrically effective antenna length 1ANT, MA. - to start from and therefore to ensure this starting point at the beginning of the regulation.
  • This procedure is particularly necessary when using the mobile radio transmission / radio receiver SE in a very wide frequency range in which the ratio of the highest to the lowest frequency is at least 1.5 octaves, since otherwise the case may occur that an electrically effective antenna length IANT, which results from the difference between the maximum electrically effective antenna length 1 ANT, MAX and the antenna length I ANT , AB covered by the dielectric rod SB, from the amount of three-quarters of the wavelength - which results from the current frequency corresponds, so that the control is ended, since in this case the input EQ also reaches the ideal value.
  • this value of the antenna length IANT is not desirable.
  • the termination of the control of the antenna length IANT when this value is reached can be prevented if, for example, a suitable control software can start the control of the antenna length I ANT with a minimum radio-effective antenna length, which results when the dielectric rod SB is fully extended, and is thus ensured that the input variable EQ always ensures optimal adaptation of the antenna when the ideal value is reached.
  • the possibly processed input quantity EQ receives the rule ⁇ P from means EFM for the acquisition of physical input quantity EQ dependent on the overlap measure M, which may be transformed into a form necessary for the rule unit ⁇ P by these means.
  • the means EFM also detect several physical input variables EQ and, if necessary, prepare them before they are forwarded to the control unit ⁇ P, the control unit ⁇ P correspondingly checking several input variables for reaching an ideal value.
  • FIG. 2 shows a mobile radio transmitting / receiving device SE with a transmitting / receiving antenna designed as a rod antenna SA, with a maximum radio antenna length I max determined by the long rod antenna SA
  • a dielectric body configured as a hollow body is arranged symmetrically to the longitudinal axis of the rod antenna SA such that the longitudinal axis of the rod antenna SA coincides with the longitudinal axis of the dielectric hollow body HK.
  • the diameter of the hollow body HK should be chosen so that the side walls of the hollow body are not too far apart in relation to the wavelength, since the different phase delays that occur otherwise result in a different radiation characteristic compared to the radiation characteristic customary for rod antennas (monopole antennas).
  • a slot is provided parallel to the longitudinal axis of the rod antenna SA, through which the high-frequency connection HF is guided in such a way that the hollow body is completely extended without obstruction, ie covering the entire rod antenna, and is complete retracted, ie the entire rod antenna can be exposed.
  • the hollow body HK can also be designed without a slot, then the high-frequency connection HF must be guided through the lower opening of the hollow body HK, and if the position of the dielectric hollow body HK is changed, the high-frequency connection HF, in particular its feed line, can also be adapted ,
  • the dielectric hollow body HK is mounted so that it can be moved up and down by a drive wheel AR, which is rotated forwards or backwards by an electric motor VM, which is designed, for example, as a stepping motor. He is touched on one side by the drive roller AR and on the opposite side of the hollow body HK - for support - touched by a support wheel SR, so that the rotational movement of the drive wheel AR is converted into a straight-line movement of the hollow body HK and thus a measure M with which the hollow body HK and the rod antenna SA overlap.
  • a drive wheel AR which is rotated forwards or backwards by an electric motor VM, which is designed, for example, as a stepping motor. He is touched on one side by the drive roller AR and on the opposite side of the hollow body HK - for support - touched by a support wheel SR, so that the rotational movement of the drive wheel AR is converted into a straight-line movement of the hollow body HK and thus a measure M with which the hollow body HK and
  • the (step) angle and the direction of rotation are determined by the
  • This voltage U s ⁇ is a signal (control signal) present at the output of a control unit (microprocessor) ⁇ P, the magnitude, sign and / or signal duration of which is dependent on the input variable EQ present at the control unit ⁇ P.
  • the input-sized EQ is determined by the intended recording means.
  • These detection means EFM can be designed in such a way that they have a directional coupler RK, which decouples a leading transmission power and a returning transmission power from a transmission signal (this configuration of the detection means can also be carried out in the embodiment of the invention described in FIG. 1).
  • the leading transmission power is then first rectified by a first rectifier and the rectified leading transmission power is then converted into a first digital signal by a first analog / digital converter.
  • the returning transmission power is rectified by a second rectifier and the rectified returning transmission power is then converted into a second digital signal by a second analog / digital converter.
  • the digital signals are present as an input signal on the control unit ⁇ P, the control unit ⁇ P being designed, for example, as a (micro) processor with associated software.
  • the processor ⁇ P checks whether the signals have reached an ideal value for each of the digital signals present - no returning transmission power or minimum returning transmission power and maximum forwarding transmission power.
  • the processor ⁇ P first generates a first control signal U s ⁇ , so that the adjusting device VM retracts the hollow body, in particular starting from the
  • the processor checks the input signals changed by this process - forward and returning transmission power - which are applied to the processor with regard to the ideal values to be achieved. Have the values of the signals - forward and returning transmission power - in
  • the direction of rotation of the means VM for adjusting the position of the dielectric hollow body HK is changed. This is achieved, for example, by reversing the sign of the signal U s ⁇ .
  • the signal U s ⁇ is generated after the determination of the correct direction until the forward and returning transmission power have reached their ideal values.
  • only one of the two variables - forward transmission power or returning transmission power P R - can be used as a control variable for this control loop, i.e. detected by the EFM means and by the processor ⁇ P when the ideal values are reached - minimum or no returning transmission power or maximum forwarding transmission power - be checked.

Abstract

The aim of the invention is to use a radio transmitting/receiving device in order to be able to transmit/receive in different frequency ranges with approximately constant and stable antenna gain. To this end, a displaceably mounted dielectric body is moved into the immediate vicinity of an antenna body by adjusting means, which are controlled by a control device, so that the degree of overlapping of both bodies in the immediate vicinity of the antenna body is altered until at least one physical input quantity representing the receiving and transmitting quality reaches an optimum.

Description

Beschreibungdescription
Mobile Funk-Sende-/Funk-Empfangseinrichtung mit abstimmbarer AntenneMobile radio transceiver with tunable antenna
In Funk-KommunikationsSystemen werden Nachrichten (beispielsweise Sprache, Bildinformation oder andere Daten) mit Hilfe von elektromagnetischen Wellen übertragen. Das Abstrahlen der elektromagnetischen Wellen erfolgt durch Antennen, wobei die Trägerfrequenzen, in dem für das jeweilige System vorgesehenen Frequenzband liegen.In radio communication systems, messages (for example voice, image information or other data) are transmitted with the aid of electromagnetic waves. The electromagnetic waves are radiated by antennas, the carrier frequencies being in the frequency band provided for the respective system.
Neben der Forderung, daß bei mobilen Funk-Sende-/Funk-Emp- fangseinrichtungen die Abmessungen der Antenne zu begrenzen sind, besteht auch in zunehmendem Maße die Forderung nach der Sende-/Empfangsfähigkeit in unterschiedlichen Frequenzbereichen. Aus diesem Grunde werden Antennen benötigt, die in mehreren Frequenzbereichen nutzbar sind.In addition to the requirement that the dimensions of the antenna have to be limited in the case of mobile radio transceivers, there is also an increasing demand for the transmission / reception capability in different frequency ranges. For this reason, antennas are required that can be used in several frequency ranges.
Mit herkömmlichen Antennen, beispielsweise stabförmigen Antennen, die insbesondere in Mobilteilen eingesetzt werden, kann die geforderte Abdeckung eines möglichst großen Frequenzbereiches bzw. mehrerer Frequenzbänder nicht gewährleistet werden, daß die Impedanz und Antennengewinn der Antenne in Abhängigkeit der Frequenz stark variiert, so daß ein Einsatz der Antenne in bestimmten Frequenzbereichen nicht möglich ist.With conventional antennas, for example rod-shaped antennas, which are used in particular in mobile parts, the required coverage of the largest possible frequency range or several frequency bands cannot be guaranteed that the impedance and antenna gain of the antenna vary greatly depending on the frequency, so that the use of Antenna is not possible in certain frequency ranges.
Daher sind zur Lösung dieses Problems bisher Antennensysteme im Einsatz, die aus mehreren Antennen bestehen, von denen jeweils eine einen bestimmten Frequenzbereich abdeckt.To solve this problem, antenna systems have thus far been used which consist of several antennas, each of which covers a specific frequency range.
Nachteilig bei derartigen bei derartigen Antennensystemen ist einerseits der erhöhte Platzbedarf sowie anderseits eine suboptimale Anpassung der Antennen an die einzelnen Frequenzen aus dem jeweiligen Frequenzband. Die der Erfindung zugrunde liegende Aufgabe ist es, eine mobile Funk-Sende-/Funk-Empfangseιnnchtung derart auszugestalten, daß sie, bei Abdeckung eines großen Frequenzbereiches, einen nahezu gleichbleibenden stabilen Antennengewinn gewahr- leistet.A disadvantage of such antenna systems is, on the one hand, the increased space requirement and, on the other hand, the suboptimal adaptation of the antennas to the individual frequencies from the respective frequency band. The object on which the invention is based is to design a mobile radio transmission / radio reception unit in such a way that, when covering a large frequency range, it ensures an almost constant stable antenna gain.
Diese Aufgabe wird durch Merkmale des Patentanspruches 1 gelost .This object is achieved by the features of claim 1.
Die erfmdungsgemaße mobile Funk-Sende-/Funk-Empfangsem- richtung gemäß Anspruch 1 weist einen elektrisch wirksamen Antennenkorper auf, m dessen Nahfeld ein dielektrischer Korper beweglich gelagert ist, so daß der dielektrischer Korper m dem Nahfeld des Antennenkorpers derart bewegt werden kann, daß das Maß mit dem der dielektrische Korper und der elektrisch wirksame Antennenkorper im Nahfeld überlappen, verändert wird. Eine einzustellende Resonanzfrequenz wird dabei tiefer, e großer das Überlappungsmaß im Nahfeld des Antennenkorpers ist. Um das Überlappungsmaß einstellen zu können, sind desweiteren Mittel zum Verstellen der Position des dielektrischen Korpers vorgesehen. Diese Verstellmittel andern die Position aufgrund mindestens eines Steuersignales, das von einer Regeleinrichtung als Ausgangssignal erzeugt und an die Verstellmittel weitergeleitet wird. Das Steuersignal wird von der Regeleinrichtung solange erzeugt, bis das Überlappungsmaß einen optimalen Wert mindestens einer physikalischen, eine Funktion der Sende-/Empfangsqualitat der Funk- Sende-/Funk-Empfangsemπchtung darstellenden, Große gewahrleistet, die von Erfassungsmitteln erfaßt und an die Regel- emrichtung, als Eingangssignal, weitergeleitet werden.The mobile radio transceiver device according to the invention has an electrically active antenna body, in the near field of which a dielectric body is movably mounted, so that the dielectric body can be moved in the near field of the antenna body in such a way that the Dimension with which the dielectric body and the electrically active antenna body overlap in the near field is changed. A resonance frequency to be set becomes lower, the greater the degree of overlap in the near field of the antenna body. In order to be able to set the degree of overlap, means are also provided for adjusting the position of the dielectric body. These adjustment means change the position on the basis of at least one control signal which is generated by a control device as an output signal and is forwarded to the adjustment means. The control signal is generated by the control device until the degree of overlap ensures an optimal value of at least one physical quantity representing a function of the transmission / reception quality of the radio transmission / radio reception device, which is detected by detection means and sent to the control device , as an input signal.
Der wesentliche Vorteil der erfmdungsgemaßen mobilen Funk- Sende/Empfangsemrichtung ist em weitgehend stabiler Antennengewinn in einem großen Frequenzbereich, der durch die Re- gelung auf einen optimalen Wert der die Empfangsqualltat darstellenden Große (n) mittels Bewegung des dielektrischen Korpers im Nahbereich des Antennenkorpers erzielt wird, wobei das Maß der Überlappung von Antennenkorper und dielektrischem Korper die Abstrahlcharakteristik der Antenne nahezu unbeeinflußt laßt und somit eine gute Anpassung über den Frequenzbereich gewährleistet ist. Zudem hat die Anordnung den Vorteil, daß die Antenne (der Antennenkorper) nicht bewegt werden muß, was für die Konstruktion der mobilen Funk-Sende-/Funk-Emp- fangseinrichtung von Vorteil ist, sowie der äußere elektrische Einfluß minimiert wird.The main advantage of the mobile radio transmission / reception device according to the invention is a largely stable antenna gain in a large frequency range, which is achieved by regulating to an optimal value of the size (s) representing the reception quality by moving the dielectric body in the vicinity of the antenna body , in which the degree of overlap of antenna body and dielectric body leaves the radiation characteristic of the antenna almost unaffected and thus a good adaptation over the frequency range is guaranteed. In addition, the arrangement has the advantage that the antenna (the antenna body) does not have to be moved, which is of advantage for the construction of the mobile radio transceiver and the external electrical influence is minimized.
Ein wesentlicher Vorteil der Weiterbildung gemäß Anspruch 2 ist das Minimieren einer gerichteten elektrischen Beeinflussung der Antenne durch den Benutzer, insbesondere seines Kopfes, der Funk-Sende-/Funk-Empfangsemπchtung und umgekehrt.An essential advantage of the development according to claim 2 is the minimization of a directional electrical influence on the antenna by the user, in particular his head, the radio transmit / receive receiver and vice versa.
Die Weiterbildung gemäß Anspruch 3 ermöglicht gleichzeitig ein Minimieren von ungerichteten äußeren Einflüssen, da sich diese starker auswirken, e großer die elektrisch wirksame Antennenlange einer Antenne ist, wobei gleichzeitig durch den parallel zur Langsachse verlaufenden Schlitz der Anschluß des Hochfrequenzsignals angebracht wird, so daß die Bewegung des dielektrischen Hohlkörpers ungehindert und ohne Änderung der Lange der Zuleitung des Hochfrequenzsignals erfolgen kann.The development according to claim 3 also enables minimizing undirected external influences, since these have a stronger effect, e greater the electrically effective antenna length of an antenna, the connection of the high-frequency signal being attached simultaneously through the slot running parallel to the longitudinal axis, so that the movement of the dielectric hollow body can take place without hindrance and without changing the length of the feed line of the high-frequency signal.
Ein wesentlicher Vorteil der Weiterbildung nach Anspruch 4 ist die Realisierung einer einfachen Einrichtung zum Verstellen der Position des dielektrischen Korpers, die nur ein Steuersignal benotigt.An essential advantage of the development according to claim 4 is the implementation of a simple device for adjusting the position of the dielectric body, which only requires a control signal.
Ein wesentlicher Vorteil der Weiterbildung nach Anspruch 5 ist die Realisierung einfacher Verstellmittel der Position des dielektrischen Korpers, die nur ein Steuersignal benotigen, wobei die Verstellung m definierten Schritten (Schrittwinkel) erfolgt.An essential advantage of the development according to claim 5 is the implementation of simple adjustment means for the position of the dielectric body, which only require a control signal, the adjustment being carried out in defined steps (step angle).
Wesentliche Vorteile der Weiterbildung gemäß Anspruch 6 sind Flexibilität und Aktualisierungsmoglichkeit der Umsetzung der Regelung, die durch den Einsatz von (Regelsoftware-) Software ermöglicht wird sowie die Möglichkeit, bereits vorhandene Prozessoren für die Steuerung der erfindungsgemäßen mobilen Funk-Sende-/Funk-Empfangseinrichtung durch den Einsatz von zusatzlicher bzw. Anpassung der vorhandenen Software zu nut- zen.Significant advantages of the further training according to claim 6 are flexibility and the possibility of updating the implementation of the regulation by the use of (regulation software) software is made possible as well as the possibility of using existing processors for controlling the mobile radio transceiver according to the invention by using additional or adapting the existing software.
Wesentliche Vorteile der Weiterbildung nach Anspruch 7 sind die einfache und gunstige Realisierung der Regeleinheit sowie die Möglichkeit, dieses Schaltwerk als integrierte Schaltung in einen Erweiterungsbaustein zu implementieren.Significant advantages of the development according to claim 7 are the simple and inexpensive implementation of the control unit and the possibility of implementing this switching mechanism as an integrated circuit in an expansion module.
Der wesentliche Vorteil der Weiterbildung gemäß Anspruch 8 ist die hohe Dielektrizitatszahl, die Keramik aufweist, da der Frequenzbereich, in der die Antenne durchgestimmt und da- mit verwendet werden kann, proportional mit der Hohe Dielektrizitatszahl des verwendeten Hohlkörpers wachst und die Anschaffungskosten gering sind, da Keramikkorper m hoher Zahl produziert werden, beispielsweise als Korper für Resonatoren.The main advantage of the development according to claim 8 is the high dielectric number that ceramic has, since the frequency range in which the antenna can be tuned and used with it grows proportionally with the high dielectric number of the hollow body used and the acquisition costs are low because Ceramic bodies are produced in large numbers, for example as bodies for resonators.
Der wesentliche Vorteil der Weiterbildung nach Anspruch 9, ist der damit mögliche Einsatz der mobilen Funk-Sende-/Funk- Empfangseinrichtung in einem Frequenzbereich, m dem das Verhältnis der höchsten zur niedrigsten Frequenz mindesten 1,5 Oktaven betragt.The main advantage of the development according to claim 9 is the possible use of the mobile radio transceiver in a frequency range in which the ratio of the highest to the lowest frequency is at least 1.5 octaves.
Das Erfassen der vorlaufenden Sendeleistung bzw. rucklaufenden Sendeleistung gemäß Anspruch 10 als physikalische eine Funktion der Sende-/Empfangsqualitat der Funk-Sende-/Funk- Empfangseinrichtung darstellende Große ermöglicht eine einfa- ehe Realisierung der Regelung (Anpassung) der Antenne, da dazu in der Funk-Sende-/Funk-Empfangsemrichtung bereits vorhandene Mittel genutzt werden können.The detection of the leading transmission power or returning transmission power according to claim 10 as a physical quantity representing a function of the transmission / reception quality of the radio transmission / radio reception device enables simple implementation of the control (adaptation) of the antenna, since in the Radio transmitters / radio receivers can use existing means.
Ausfuhrungsbeispiele der Erfindung werden anhand der FIGUREN 1 bis 2 erläutert. Dabei zeigen: FIGUR 1 Mobile Funk-Sende-/Funk-Empfangsemπchtung mit Stabantenne, die von einem als geschlitzten Hohlzylmder ausgestalteten dielektrischen Korper umschlossen wird (in Schnittdarstellung) , wobei der dielektrische Korper mit einem gesteuerten Elektromotor ein- und ausgefahren werden kann.Exemplary embodiments of the invention are explained with reference to FIGURES 1 to 2. Show: FIGURE 1 Mobile radio transmitting / receiving equipment with rod antenna, which is enclosed by a dielectric body designed as a slotted hollow cylinder (in a sectional view), the dielectric body being able to be moved in and out with a controlled electric motor.
FIGUR 2 Mobile Funk-Sende-/Funk-Empfangsemrichtung mit Stabantenne, bei der ein als Stab ausgestalteter dielektrischer Korper parallel zur Antenne angeordnet wird, wobei der dielektrische Korper mit einem gesteuerten Elektromotor em- und ausgefahren werden kann.FIGURE 2 Mobile radio transceiver with rod antenna, in which a dielectric body designed as a rod is arranged parallel to the antenna, the dielectric body being able to be extended and retracted with a controlled electric motor.
FIGUR 1 zeigt eine mobile Funk-Sende-/Funk-Empfangsemrichtung SE mit einer als Stabantenne SA ausgebildete Sende- /Empfangsantenne, wobei eine maximale funktechnisch wirksame Antennenlange lmax durch die Lange Stabantenne SA bestimmtFIGURE 1 shows a mobile radio transmission / radio reception device SE with a transmission / reception antenna designed as a rod antenna SA, a maximum radio antenna length l max determined by the long rod antenna SA
Parallel zur Langsachse der Stabantenne SA ist ein als Stab SB ausgestalteter dielektrischer Korper angeordnet. Der Abstand des Stabes sollte im Bezug auf die Wellenlange keinen zu großen Abstand haben, da durch die sonst auftretenden unterschiedlichen Phasenlaufzeiten sich eine andere Abstrahl- charakteristik gegenüber der für Stabantennen (Monopolanten- nen) üblichen Abstrahlcharakteπstik ergibt.A dielectric body designed as a rod SB is arranged parallel to the longitudinal axis of the rod antenna SA. The distance of the rod should not be too great in relation to the wavelength, since the different phase delays that otherwise occur result in a different radiation characteristic compared to the radiation characteristic customary for rod antennas (monopole antennas).
Alternativ kann der dielektrische Korper eine beliebige andere geometrische Form aufweisen. Wesentlich ist nur, daß bei Einfuhren des dielektrischen Körpers s Nahfeld der Antenne die Antenne derart verstimmt wird, daß sie auf die aktuelle Frequenz abgestimmt ist.Alternatively, the dielectric body can have any other geometric shape. It is only important that when the dielectric body s near the antenna is imported, the antenna is detuned in such a way that it is tuned to the current frequency.
Wie die geometrische Form zu wählen ist, hangt insbesondere von der Antenne ab und kann beispielsweise durch Simulation oder durch Versuchsaufbauten bestimmt werden. Der abgedeckte Frequenzbereich vergrößert sich durch Vergrößerung des Volumens und Erhöhung der Dielektrizit tszahl des verwendeten dielektrischen Körpers.How the geometric shape is to be chosen depends in particular on the antenna and can be determined, for example, by simulation or by experimental setups. The covered frequency range increases by increasing the volume and increasing the dielectric number of the dielectric body used.
Daher ist der dielektrische Körper beispielweise aus Keramik zu fertigen, da Keramik eine Dielektrizitätszahl von 88 aufweisen kann.For this reason, the dielectric body must be made of ceramic, for example, since ceramic can have a dielectric constant of 88.
Der dielektrische Stab SB ist derart beweglich gelagert, daß er von einem Antriebsrad AR, das von einem Elektromotor VM, der beispielsweise als Schrittmotor ausgebildet ist, vor- oder rückwärts gedreht wird, ein- und ausgefahren werden kann. Er wird dabei auf einer Seite von der Antriebsrolle AR berührt und auf der dem Berührungspunkt entgegengesetztenThe dielectric rod SB is mounted so that it can be moved in and out by a drive wheel AR which is rotated forwards or backwards by an electric motor VM, which is designed, for example, as a stepping motor. He is touched on one side by the drive roller AR and on the opposite side of the point of contact
Seite des Stabes SB - zur Unterstützung - von einem Stützrad SR berührt, so daß die Drehbewegung des Antriebsrades AR in eine geradlinige Bewegung des Stabes SB umgesetzt wird und damit ein Maß M, mit dem sich die Stabantenne SA und der di- elektrische Stab SB überlappen, festgelegt.Side of the rod SB - for support - touched by a support wheel SR, so that the rotary movement of the drive wheel AR is converted into a linear movement of the rod SB and thus a dimension M with which the rod antenna SA and the dielectric rod SB overlap , fixed.
Der (Schritt-) inkel sowie die Drehrichtung sind durch den Betrag, das Vorzeichen und/oder die Dauer einer am Elektromotor VM anliegenden Spannung (Steuersignal) USτ bestimmt.The (step) angle and the direction of rotation are determined by the amount, the sign and / or the duration of a voltage (control signal) U S τ applied to the electric motor VM.
Diese Spannung Usτ ist ein am Ausgang einer Regeleinheit (Mikroprozessor) μP anliegendes Signal (Steuersignal), deren Betrag, Vorzeichen und/oder Signaldauer von an der Regeleinheit μP anliegenden Eingangsgröße EQ abhängig ist.This voltage U sτ is a signal (control signal) present at the output of a control unit (microprocessor) μP, the magnitude, sign and / or signal duration of which depends on the input variable EQ present on the control unit μP.
Die Regeleinheit μP steuert den Elektromotor VM durch das Signal USτ solange, bis eine physikalische die Empfangsqualität der Funk-Sende-/Funk-Empfangseinrichtung SE darstellende Eingangsgröße EQ einen Idealwert (Optimum) erreicht hat.The control unit μP controls the electric motor VM using the signal U S τ until a physical input variable EQ representing the reception quality of the radio transceiver SE has reached an ideal value (optimum).
Dabei wird zunächst der Elektromotor VM so angesteuert, daß er die Antriebsrolle AR zu Beginn der Regelung immer in eine vorbestimmte Richtung (Default) dreht. Ergibt die Auswertung, daß sich die Eingangsgroße EQ vom Idealwert entfernt, wird Drehrichtung geändert und der Elektromotor VM wird solange angesteuert, bis die Eingangsgroße EQ den Idealwert erreicht hat.First, the electric motor VM is controlled so that it always drives the drive roller AR at the beginning of the control predetermined direction (default) rotates. If the evaluation shows that the input variable EQ is moving away from the ideal value, the direction of rotation is changed and the electric motor VM is activated until the input variable EQ has reached the ideal value.
Alternativ ist es möglich, die Regelung zusätzlich von einem definierten Startpunkt, beispielsweise immer von vollständig ausgefahrenem Zutand des dielektrischen Stabes SB - d.h. das Überlappungsmaß M bzw. eine vom Stab SB abgedeckte LangeAlternatively, it is possible to control the control from a defined starting point, for example always from the fully extended state of the dielectric rod SB - i.e. the overlap dimension M or a length covered by the rod SB
IANT,AB ist gleich der maximalen elektrisch wirksame Antennenlange 1ANT,MA. - aus zu beginnen und daher bei Beginn der Regelung zunächst diesen Startpunkt sicher zu stellen. Diese Vorgehensweise ist besonders bei einem Einsatz der mobilen Funk- Sende-/Funk-Empfangsemπchtung SE in einem sehr breiten Frequenzbereich, in dem das Verhältnis der höchsten zur niedrigsten Frequenz mindestens 1,5 Oktaven betragt, erforderlich, da sonst der Fall auftreten kann, daß eine elektrisch wirksamen Antennenlange IANT, die sich aus der Differenz von maxima- 1er elektrisch wirksamer Antennenlange 1ANT,MAX und der von dem dielektrischen Stab SB abgedeckten Antennenlange IANT,AB ergibt, vom Betrag dreiviertel der - sich aus der aktuellen Frequenz ergebenden - Wellenlange entspricht, so daß die Regelung beendet wird, da für diesen Fall die Eingangsgroße EQ ebenfalls den Idealwert erreicht. Da für diesen Fall die erfinderische Aufgabe nicht gelost wird, ist dieser Wert der Antennenlange IANT nicht erwünscht. Das Beenden der Regelung der Antennenlange IANT bei Erreichen dieses Wertes kann man verhindern, wenn beispielweise eine geeignete Steuersoftware die Regelung der Antennenlange IANT bei einer minimalen funktechnisch wirksamen Antennenlange, die sich bei voll ausgefahrenem dielektrischen Stab SB ergibt, beginnen laßt, und damit sichergestellt ist, daß die Eingangsgröße EQ bei Erreichen des Idealwertes immer eine optimale Anpassung der Anten- ne gewahrleistet. Die ggf. aufbereitete Eingangsgroße EQ erhalt die Regelem- heit μP von Mitteln EFM zur Erfassung von physikalischen vom Überlappungsmaß M abhangigen Eingangsgroßen EQ, die von diesen Mitteln ggf. m eine für die Regelemheit μP notwendige Form transformiert werden.I ANT , AB is equal to the maximum electrically effective antenna length 1ANT, MA. - to start from and therefore to ensure this starting point at the beginning of the regulation. This procedure is particularly necessary when using the mobile radio transmission / radio receiver SE in a very wide frequency range in which the ratio of the highest to the lowest frequency is at least 1.5 octaves, since otherwise the case may occur that an electrically effective antenna length IANT, which results from the difference between the maximum electrically effective antenna length 1 ANT, MAX and the antenna length I ANT , AB covered by the dielectric rod SB, from the amount of three-quarters of the wavelength - which results from the current frequency corresponds, so that the control is ended, since in this case the input EQ also reaches the ideal value. Since the inventive task is not achieved in this case, this value of the antenna length IANT is not desirable. The termination of the control of the antenna length IANT when this value is reached can be prevented if, for example, a suitable control software can start the control of the antenna length I ANT with a minimum radio-effective antenna length, which results when the dielectric rod SB is fully extended, and is thus ensured that the input variable EQ always ensures optimal adaptation of the antenna when the ideal value is reached. The possibly processed input quantity EQ receives the rule μP from means EFM for the acquisition of physical input quantity EQ dependent on the overlap measure M, which may be transformed into a form necessary for the rule unit μP by these means.
Alternativ erfassen die Mittel EFM auch mehrere physikalische Eingangsgroßen EQ und bereiten diese ggf. auf, bevor sie an die Regelemheit μP weitergeleitet werden, wobei die Regel- emheit μP entsprechend mehrere Eingangsgroßen auf das Erreichen eines Idealwertes überprüfen.As an alternative, the means EFM also detect several physical input variables EQ and, if necessary, prepare them before they are forwarded to the control unit μP, the control unit μP correspondingly checking several input variables for reaching an ideal value.
In FIGUR 2 ist eine mobile Funk-Sende-/Funk-Empfangsemπch- tung SE mit einer als Stabantenne SA ausgebildete Sende- /Empfangsantenne, wobei eine maximale funktechnisch wirksame Antennenlange lmax durch die Lange Stabantenne SA bestimmtFIG. 2 shows a mobile radio transmitting / receiving device SE with a transmitting / receiving antenna designed as a rod antenna SA, with a maximum radio antenna length I max determined by the long rod antenna SA
Symmetrisch zur Langsachse der Stabantenne SA ist em als Hohlkörper ausgestalteter dielektrischer Korper derart angeordnet, daß sich die Langsachse der Stabantenne SA mit der Langsachse des dielektrischen Hohlkörpers HK deckt. Der Durchmesser des Hohlkörpers HK sollte so gewählt sein, daß die Seitenwande des Hohlkörpers im Bezug auf die Wellenlange keinen zu großen Abstand haben, da durch die sonst auftretenden unterschiedlichen Phasenlaufzeiten sich eine andere Ab- strahlcharakteristik gegenüber der für Stabantennen (Monopolantennen) üblichen Abstrahlcharakteristik ergibt.A dielectric body configured as a hollow body is arranged symmetrically to the longitudinal axis of the rod antenna SA such that the longitudinal axis of the rod antenna SA coincides with the longitudinal axis of the dielectric hollow body HK. The diameter of the hollow body HK should be chosen so that the side walls of the hollow body are not too far apart in relation to the wavelength, since the different phase delays that occur otherwise result in a different radiation characteristic compared to the radiation characteristic customary for rod antennas (monopole antennas).
Damit em Hochfrequenzsignal an die Stabantenne SA gefuhrt werden kann, ist em Schlitz parallel zur Langsachse der Stabantenne SA vorgesehen, durch den der Hochfrequenzanschluß HF hindurch derart gefuhrt wird, daß der Hohlkörper ohne Behinderung vollständig ausgefahren, d.h. die gesamte Staban- tenne abdeckend, und vollständig eingefahren, d.h. die gesamte Stabantenne freigelegt, werden kann. Alternativ kann der Hohlkörper HK auch ohne Schlitz ausgestaltet sein, dann muß der Hochfrequenzanschluß HF durch die untere Öffnung des Hohlkörpers HK gefuhrt werden, wobei bei Änderung der Position des dielektrischen Hohlkörpers HK auch ggf. eine Anpassung des Hochfrequenzanschlusses HF, insbesondere seiner Zuleitung, erfolgen kann.So that a high-frequency signal can be fed to the rod antenna SA, a slot is provided parallel to the longitudinal axis of the rod antenna SA, through which the high-frequency connection HF is guided in such a way that the hollow body is completely extended without obstruction, ie covering the entire rod antenna, and is complete retracted, ie the entire rod antenna can be exposed. Alternatively, the hollow body HK can also be designed without a slot, then the high-frequency connection HF must be guided through the lower opening of the hollow body HK, and if the position of the dielectric hollow body HK is changed, the high-frequency connection HF, in particular its feed line, can also be adapted ,
Der dielektrische Hohlkörper HK ist derart beweglich gelagert, daß er von einem Antriebsrad AR, das von einem Elektro- motor VM, der beispielsweise als Schrittmotor ausgebildet ist, vor- oder rückwärts gedreht wird, em- und ausgefahren werden kann. Er wird dabei auf einer Seite von der Antriebsrolle AR berührt und auf der dem Berührungspunkt entgegengesetzten Seite des Hohlkörpers HK - zur Unterstützung - von einem Stutzrad SR berührt, so daß die Drehbewegung des Antriebsrades AR in eine geradlinige Bewegung des Hohlkörpers HK umgesetzt und damit em Maß M, mit der der Hohlkörper HK und die Stabantenne SA überlappen, festgelegt wird.The dielectric hollow body HK is mounted so that it can be moved up and down by a drive wheel AR, which is rotated forwards or backwards by an electric motor VM, which is designed, for example, as a stepping motor. He is touched on one side by the drive roller AR and on the opposite side of the hollow body HK - for support - touched by a support wheel SR, so that the rotational movement of the drive wheel AR is converted into a straight-line movement of the hollow body HK and thus a measure M with which the hollow body HK and the rod antenna SA overlap.
Der (Schritt-) Winkel sowie die Drehrichtung sind durch denThe (step) angle and the direction of rotation are determined by the
Betrag, das Vorzeichen und/oder die Dauer einer am Elektromotor VM anliegenden Spannung (Steuersignal) UςT bestimmt.Amount that determines the sign and / or the duration of a voltage (control signal) Uς T applied to the electric motor VM.
Diese Spannung Usτ ist em am Ausgang einer Regelemheit (Mi- kroprozessor) μP anliegendes Signal (Steuersignal) , deren Betrag, Vorzeichen und/oder Signaldauer von an der Regelemheit μP anliegenden Eingangsgroße EQ abhangig ist.This voltage U sτ is a signal (control signal) present at the output of a control unit (microprocessor) μP, the magnitude, sign and / or signal duration of which is dependent on the input variable EQ present at the control unit μP.
Die Eingangsgroße EQ wird von vorgesehenen Erfassungsmitteln ermittelt.The input-sized EQ is determined by the intended recording means.
Diese Erfassungsmittel EFM können derart ausgestaltet sein, daß sie einen Richtkoppler RK aufweisen, der aus einem Sende- signal eine vorlaufende Sendeleistung und eine rucklaufende Sendeleistung auskoppelt (diese Ausgestaltung der Erfassungsmittel kann auch bei der in Figur 1 beschriebenen Ausfuhrung der Erfindung vorgenommen werden) . Die vorlaufende Sendeleistung wird dann zunächst von einem ersten Gleichrichter gleichgerichtet und die gleichgerichtete vorlaufende Sendeleistung wird anschließend von einem ersten Analog/Digitalwandler in ein erstes digitales Signal gewandelt. Die rücklaufende Sendeleistung wird von einem zweiten Gleichrichter gleichgerichtet und die gleichgerichtete rücklaufende Sendeleistung anschließend von einem zweiten Analog/Digitalwandler in ein zweites digitales Signal gewandelt.These detection means EFM can be designed in such a way that they have a directional coupler RK, which decouples a leading transmission power and a returning transmission power from a transmission signal (this configuration of the detection means can also be carried out in the embodiment of the invention described in FIG. 1). The leading transmission power is then first rectified by a first rectifier and the rectified leading transmission power is then converted into a first digital signal by a first analog / digital converter. The returning transmission power is rectified by a second rectifier and the rectified returning transmission power is then converted into a second digital signal by a second analog / digital converter.
Die digitalen Signale liegen als Eingangssignal an der Regeleinheit μP an, wobei die Regeleinheit μP beispielsweise als (Mikro-) Prozessor mit zugehöriger Software ausgebildet ist. Der Prozessor μP überprüft bei den anliegenden digitalen Si- gnalen, ob die Signale jeweils einen Idealwert - keine rücklaufende Sendeleistung bzw. minimale rücklaufende Sendeleistung und maximale vorlaufende Sendeleistung - erreicht haben.The digital signals are present as an input signal on the control unit μP, the control unit μP being designed, for example, as a (micro) processor with associated software. The processor μP checks whether the signals have reached an ideal value for each of the digital signals present - no returning transmission power or minimum returning transmission power and maximum forwarding transmission power.
Trifft dies zu, wird kein Steuersignal USτ erzeugt, da keine Änderung des Überlappungsmaßes notwendig ist.If this is the case, no control signal U S τ is generated, since no change in the overlap dimension is necessary.
Trifft dies nicht zu, wird vom Prozessor μP zunächst ein erstes Steuersignal Usτ erzeugt, so daß die Versteileinrichtung VM, den Hohlkörper einfährt, insbesondere ausgehend von demIf this is not the case, the processor μP first generates a first control signal U sτ , so that the adjusting device VM retracts the hollow body, in particular starting from the
Defaultwert, bzw. ausfährt. Die durch diesen Vorgang geänderten Eingangssignale - vor- und rücklaufende Sendeleistung - , die am Prozessor anliegen, überprüft der Prozessor im Hinblick auf die zu erreichenden Idealwerte. Haben sich die Wer- te der Signale - vor- und rücklaufende Sendeleistung - imDefault value, or extends. The processor checks the input signals changed by this process - forward and returning transmission power - which are applied to the processor with regard to the ideal values to be achieved. Have the values of the signals - forward and returning transmission power - in
Hinblick auf Erreichen der Idealwerte verschlechtert, so wird die Drehrichtung der Mittel VM zum Verstellen der Position des dielektrischen Hohlkörpers HK geändert. Dies wird beispielsweise durch Umkehrung des Vorzeichens des Signals Usτ erreicht. Das Signal Usτ wird im Anschluß an die Ermittlung der korrekten Richtung solange erzeugt, bis die vor- und rücklaufende Sendeleistung ihre Idealwerte erreicht haben.If the ideal values deteriorate, the direction of rotation of the means VM for adjusting the position of the dielectric hollow body HK is changed. This is achieved, for example, by reversing the sign of the signal U sτ . The signal U sτ is generated after the determination of the correct direction until the forward and returning transmission power have reached their ideal values.
Alternativ kann für diesen Regelkreis auch nur eine der beiden Größen - vorlaufende Sendeleistung oder rücklaufende Sendeleistung PR - als Regelgröße verwendet werden, d.h. von den Mitteln EFM erfaßt und vom Prozessor μP auf Erreichen der Idealwerte - minimale bzw. keine rücklaufende Sendeleistung oder maximal vorlaufende Sendeleistung - überprüft werden.Alternatively, only one of the two variables - forward transmission power or returning transmission power P R - can be used as a control variable for this control loop, i.e. detected by the EFM means and by the processor μP when the ideal values are reached - minimum or no returning transmission power or maximum forwarding transmission power - be checked.
Als Alternative zum Einsatz eines zusätzlichen Prozessors μP wäre es denkbar, daß bereits vorhandene Prozessoren durch eine geeignete Steuersoftware aufgerüstet werden, um diese Re- gelung durchführen zu können.As an alternative to using an additional processor μP, it would be conceivable for existing processors to be upgraded with suitable control software in order to be able to carry out this regulation.
Bei Einsatz eines zusätzlichen Prozessors μP wäre auch eine Integration der Mittel EFM in den Prozessor μP denkbar.When using an additional processor μP, an integration of the means EFM into the processor μP would also be conceivable.
Die genannten Ausführungsbeispiele stellen nur einen Teil der durch die Erfindung möglichen Ausführungsformen dar. So ist ein auf diesem Gebiet tätiger Fachmann in der Lage, durch vorteilhafte Modifikationen eine Vielzahl von weiteren Ausführungsformen zu schaffen, ohne daß dabei der Charakter (We- sen) der Erfindung - Abstimmen einer Antenne durch Bewegung eines dielektrischen Körpers im Nahfeld der Antenne - verändert wird. Diese Ausführungsformen sollen ebenfalls durch die Erfindung mit erfaßt sein. The exemplary embodiments mentioned represent only a part of the embodiments possible through the invention. Thus, a person skilled in the art is able to create a large number of further embodiments by means of advantageous modifications, without the character (s) of the invention - Tuning an antenna by moving a dielectric body in the near field of the antenna - is changed. These embodiments are also intended to be covered by the invention.

Claims

Patentansprüche claims
1. Mobile Funk-Sende-/Funk-Empfangsemπchtung (SE) mit folgenden Merkmalen: a) em elektrisch wirksamer Antennenkorper, in dessen Nahfeld em dielektrischer Korper beweglich gelagert ist, b) der dielektrischer Korper m dem Nahfeld des Antennenkorpers derart bewegt werden kann, daß das Überlappungsmaß1. Mobile radio transmission / radio reception device (SE) with the following features: a) an electrically active antenna body, in the near field of which a dielectric body is movably mounted, b) the dielectric body can be moved in the near field of the antenna body in such a way, that the overlap dimension
(M) , mit dem der dielektrische Korper und der elektrisch wirksame Antennenkorper im Nahfeld überlappen, verändert wird, c) Mittel (VM) zum Verstellen der Position des dielektrischen Korpers, d) Mittel (EFM) zum Erfassen von mindestens einer physikali- sehen, eine Funktion der Sende-/Empfangsqualitat der Funk-(M) with which the dielectric body and the electrically active antenna body overlap in the near field is changed, c) means (VM) for adjusting the position of the dielectric body, d) means (EFM) for detecting at least one physical, a function of the transmission / reception quality of the radio
Sende-/Funk-Empfangsemrichtung (SE) darstellenden, Große (EQ), e) eine mit den Erfassungsmitteln (EFM) verbundene Regeleinrichtung (μP) , die in Abhängigkeit von der Eingangsgröße (EQ) bzw. von den Eingangsgroßen (EQ) die Verstellmittel (VM) mittels mindestens eines Steuersignales (USτ) solange steuert, bis das Uberlappungsmaß (M) einen optimalen Wert der physikalischen, eine Funktion der Sende-/Empfangsqua- litat der Funk-Sende-/Funk-Empfangsemrichtung (SE) dar- stellenden, Große (EQ) gewährleistet.Transmitting / radio receiving device (SE), large (EQ), e) a control device (μP) connected to the detection means (EFM), which, depending on the input variable (EQ) or the input variable (EQ), the adjusting means (VM) controls by means of at least one control signal (U S τ) until the overlap dimension (M) represents an optimal value of the physical, a function of the transmit / receive quality of the radio transmit / receive device (SE). ensuring large (EQ) guaranteed.
2. Mobile Funk- Sende/Empfangsemrichtung (SE) nach Anspruch2. Mobile radio transmission / reception device (SE) according to claim
1, dadurch gekennzeichnet, daß a) der elektrisch wirksame Antennenkorper als Stabantenne (SA) ausgestaltet ist, b) der dielektrische Korper als Hohlkörper (HK) mit einem Schlitz, der parallel zur Langsachse des Hohlkörpers verlauft, ausgestaltet ist, c) der dielektrische Korper entlang der Langsachse der Stabantenne (SA) derart bewegbar ist, daß sich das Uberlappungsmaß (M) aus der Differenz von maximaler elektrisch wirksamer Antennenlänge (1ANT,MAX) der Stabantenne (SA) und einem von dem Hohlkörper (HK) umschlossenen abgedeckten Antennenlänge (IAB) der Stabantenne (SA) ergibt.1, characterized in that a) the electrically effective antenna body is designed as a rod antenna (SA), b) the dielectric body is designed as a hollow body (HK) with a slot which runs parallel to the longitudinal axis of the hollow body, c) the dielectric body is movable along the longitudinal axis of the rod antenna (SA) in such a way that the overlap dimension (M) is electrical from the difference of maximum effective antenna length (1ANT, MAX) of the rod antenna (SA) and a covered antenna length (I AB ) of the rod antenna (SA) enclosed by the hollow body (HK).
3. Mobile Funk- Sende/Empfangseinrichtung (SE) nach Anspruch3. Mobile radio transceiver (SE) according to claim
1, dadurch gekennzeichnet, daß a) der elektrisch wirksame Antennenkörper als Stabantenne (SA) ausgestaltet ist, b) der dielektrische Körper als Stab (SB) ausgestaltet ist, c) der dielektrische Körper auf einer Längsseite der Stabantenne (SA) parallel zur Stabantenne (SA) derart bewegbar ist, daß sich ein Überlappungsmaß (M) aus der Differenz von maximaler elektrisch wirksamer Antennenlänge (1ANT,MAX) der Stabantenne (SA) und einer von dem Stab (SB) auf der Längsseite abgedeckten Antennenlänge (IAB) der Stabantenne (SA) ergibt.1, characterized in that a) the electrically active antenna body is designed as a rod antenna (SA), b) the dielectric body is designed as a rod (SB), c) the dielectric body on a long side of the rod antenna (SA) parallel to the rod antenna ( SA) can be moved in such a way that an overlap dimension (M) results from the difference between the maximum electrically effective antenna length (1AN T , M AX) of the rod antenna (SA) and an antenna length (I A B.) Covered by the rod (SB) on the long side ) of the rod antenna (SA).
4. Mobile Funk- Sende/Empfangseinrichtung (SE) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Verstellmittel (VM) mindestens ein Elektromotor ist.4. Mobile radio transceiver (SE) according to any one of the preceding claims, characterized in that the adjusting means (VM) is at least one electric motor.
5. Mobile Funk-Sende-/Funk-E pfangsemrichtung (SE) nach dem Anspruch 4, dadurch gekennzeichnet, daß der Elektromotor ein Schrittmotor ist.5. Mobile radio transmission / radio E pfangsemrichtung (SE) according to claim 4, characterized in that the electric motor is a stepper motor.
6. Mobile Funk-Sende-/Funk-Empfangseinrichtung (SE) nach ei- nein der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Regeleinrichtung (μP) ein Prozessor mit einer für die Erzeugung des Steuersignals (Usτ) bzw. der Steuersignale (Usτ) ausgestalteten Software ist. 6. Mobile radio transceiver (SE) according to egg no of the preceding claims, characterized in that the control device (μP) is a processor with a for generating the control signal (U sτ ) or the control signals (U sτ ) is designed software.
7. Mobile Funk-Sende-/Funk-Empfangseinrichtung (SE) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Regeleinrichtung (μP) als Schaltwerk ausgestaltet ist.7. Mobile radio transceiver (SE) according to one of claims 1 to 5, characterized in that the control device (μP) is designed as a switching mechanism.
8. Mobile Funk-Sende-/Funk-Empfangseinrichtung (SE) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der dielektrische Körper (DK) aus Keramik ausgebildet ist.8. Mobile radio transceiver (SE) according to one of the preceding claims, characterized in that the dielectric body (DK) is made of ceramic.
9. Mobile Funk-Sende-/Funk-Empfangseinrichtung (SE) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Regeleinrichtung (μP) derart ausgestaltet ist, daß sie zu Beginn der Einstellung des Überlappungsmaßes (M) , das Überlappungsmaß (M) auf einen maximalen Wert einstellt.9. Mobile radio transceiver (SE) according to any one of the preceding claims, characterized in that the control device (μP) is designed such that at the beginning of the setting of the overlap dimension (M), the overlap dimension (M) set to a maximum value.
10. Mobile Funk-Sende-/Funk-Empfangseinrichtung (SE) nach ei- nem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Erfassungsmittel (EFM) derart ausgestaltet sind, daß sie eine vorlaufende Sendeleistung und/oder rücklaufende Sendeleistung eines Sendesignals erfassen. 10. Mobile radio transmission / radio reception device (SE) according to one of the preceding claims, characterized in that the detection means (EFM) are designed such that they detect a forward transmission power and / or a return transmission power of a transmission signal.
EP00965835A 1999-09-09 2000-09-06 Mobile radio transmitting/receiving device comprising a tunable antenna Expired - Lifetime EP1218968B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19943118A DE19943118A1 (en) 1999-09-09 1999-09-09 Mobile radio transceiver with tunable antenna
DE19943118 1999-09-09
PCT/DE2000/003077 WO2001018907A1 (en) 1999-09-09 2000-09-06 Mobile radio transmitting/receiving device comprising a tunable antenna

Publications (2)

Publication Number Publication Date
EP1218968A1 true EP1218968A1 (en) 2002-07-03
EP1218968B1 EP1218968B1 (en) 2004-04-21

Family

ID=7921368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00965835A Expired - Lifetime EP1218968B1 (en) 1999-09-09 2000-09-06 Mobile radio transmitting/receiving device comprising a tunable antenna

Country Status (6)

Country Link
US (1) US6753819B1 (en)
EP (1) EP1218968B1 (en)
CN (1) CN1373917A (en)
DE (2) DE19943118A1 (en)
ES (1) ES2219398T3 (en)
WO (1) WO2001018907A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014029512A2 (en) 2012-08-24 2014-02-27 Alstom Technology Ltd Sequential combustion with dilution gas mixer
EP2837888A1 (en) 2013-08-15 2015-02-18 Alstom Technology Ltd Sequential combustion with dilution gas mixer

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DE19959983C2 (en) * 1999-12-13 2002-05-02 Siemens Ag Radio transmitter / radio receiver with tunable antenna
JP2007293714A (en) * 2006-04-26 2007-11-08 Toshiba Tec Corp Wireless communication apparatus and printing apparatus
EP3136503B1 (en) * 2015-08-31 2018-11-28 Vodafone GmbH Tuneable antenna for a wireless communication device
WO2017138371A1 (en) * 2016-02-10 2017-08-17 ソニー株式会社 Communication device and method, antenna device, and communication system

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014029512A2 (en) 2012-08-24 2014-02-27 Alstom Technology Ltd Sequential combustion with dilution gas mixer
EP2837888A1 (en) 2013-08-15 2015-02-18 Alstom Technology Ltd Sequential combustion with dilution gas mixer

Also Published As

Publication number Publication date
DE19943118A1 (en) 2001-04-05
ES2219398T3 (en) 2004-12-01
DE50006179D1 (en) 2004-05-27
WO2001018907A1 (en) 2001-03-15
EP1218968B1 (en) 2004-04-21
US6753819B1 (en) 2004-06-22
CN1373917A (en) 2002-10-09

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