EP1026774A2 - Antenne pour terminaux de radiocommunication sans fil - Google Patents

Antenne pour terminaux de radiocommunication sans fil Download PDF

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Publication number
EP1026774A2
EP1026774A2 EP00100923A EP00100923A EP1026774A2 EP 1026774 A2 EP1026774 A2 EP 1026774A2 EP 00100923 A EP00100923 A EP 00100923A EP 00100923 A EP00100923 A EP 00100923A EP 1026774 A2 EP1026774 A2 EP 1026774A2
Authority
EP
European Patent Office
Prior art keywords
antenna
antenna according
ground
frequency
connections
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.)
Ceased
Application number
EP00100923A
Other languages
German (de)
English (en)
Other versions
EP1026774A3 (fr
Inventor
Martin Dr. Weinberger
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.)
Gigaset Communications GmbH
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 EP1026774A2 publication Critical patent/EP1026774A2/fr
Publication of EP1026774A3 publication Critical patent/EP1026774A3/fr
Ceased legal-status Critical Current

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Classifications

    • 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
    • H01Q9/0471—Non-planar, stepped or wedge-shaped patch
    • 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
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364—Creating multiple current paths
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364—Creating multiple current paths
    • H01Q5/371—Branching current paths
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • 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

Definitions

  • the present invention relates to antennas for radio-operated Communication terminals.
  • antennas are needed, which are able are to cover several frequency bands at the same time.
  • market is asking for smaller and cheaper ones Mobile devices. That is why antennas are required, some have a small footprint, easily for a function in several frequency bands or a broadband frequency range can be designed and manufactured cheaply.
  • the object of the present invention is to provide an antenna for to specify radio-operated communication terminals, which as planar inverted-F antenna is formed, but which in is able to cover several frequency bands at the same time.
  • An antenna for radio-operated communication terminals for Solution to the problem according to the invention is characterized by a planar inverted-F antenna with at the feed point and one or several earth connections, in their total dimension the size determining the antenna for a given lower Emission frequency is designed, and the one in the longitudinal direction or has several notches or gradations, by means of which result in one or more geometric lines, which consist of several straight or curved single sections put together, and that from the feed point or one other corner or end point to one of the through the notches or gradations created corner points, and over the course of which an emittable wave with a higher Frequency forms as the predetermined lower frequency.
  • the antenna according to the invention is easy and inexpensive to manufacture, requires little space and is easy for a function in several frequency bands or in one broadband frequency range can be designed.
  • Figure 1 shows a basic perspective view of a possible embodiment of the antenna according to the invention.
  • the actual radiating element of the multiband antenna according to the present invention is identified by 1, which is a planar inverted-F antenna. Only part of the housing wall of the mobile radio device 2 is shown, which is covered with a metallic EMC shield 3. In the present multiband antenna, this metallic EMC shield 3 forms the mass necessary for the radiator element 1. The connection between the radiator element 1 and the metallic EMC shield 3 is established via the ground connection 5. The actual feed point of the antenna is marked with 4.
  • FIGS. 2a to 2k show a small sample selection of differently designed radiator elements. This Selection is by no means restrictive. With all shown Examples are basically a planar inverted-F antenna according to claim 1.
  • FIG. 3 shows an embodiment of an inventive Multi-band antenna, in which, in contrast to that in FIG. 1 Multiband antenna shown an additional separate ground plate 6 is provided. Because under normal circumstances Mass ratios within a radio-operated communication terminal are not always fully predictable Mass plate 6 for defined mass ratios with respect to the radiator element 1 of the multi-band antenna. Between the ground plate 6 and the device ground are one or more connections 7 provided. These connections can also be extensive be executed.
  • the ground plate 8 need not, as shown in Figure 4, with regard to their dimensions according to the dimensions of the radiator element 9 straighten.
  • ground plate 10 in its outer Adapt dimensions to the respective radiator element 11, as shown in Figure 5.
  • the radiating element can be wavy, as shown in FIG is formed, or, as shown in FIG. 8, rectangular meandering.
  • FIG. 7 shows, by way of example, that it goes without saying also the ground plate of the shape of the radiator element can adjust.
  • the multi-band antenna is not 100 percent parallel for metallic EMC shielding of the radio-operated communication terminal runs, but towards the free end towards a larger distance between the antenna and the metallic EMC layer forms. This is shown in Figure 9.
  • FIG. 12 shows a special embodiment of the multi-band antenna according to the present invention, which is characterized is that the radiator element has different heights and has slopes.
  • FIG. 13 shows excerpts of the possible wave shape in the case of a radiator shape as shown in FIG. 1. It can be seen that, in addition to a fundamental frequency with a wavelength of ⁇ 1, three further wavelengths are formed, with ⁇ 4 being a resonance wave between two open ends (corresponds to a microstrip resonance in the original sense).
  • FIG. 14 shows the waveform in the case of a radiator shape as shown in FIG. 2b. It can be seen that, in addition to a fundamental frequency with a wavelength of ⁇ 1, two further wavelengths are formed, with ⁇ 3 being a resonance wave between two open ends (corresponds to a microstrip resonance in the original sense).
  • parts of the antenna structure can also be in other directions, 15 and 16, as in the basic forms be formed. This can be beneficial for the voting options be in individual frequency ranges. Doing so although the principle of a form as compact as possible find, injured, but it may also be the circumstances be better used in the device.
  • Antenna is an inverted-F antenna, due to its dimensions the lowest radiation frequency is determined and by one or more suitable notches along their Longitudinal axis also for radiation in other, higher frequency ranges can be stimulated.
  • the depth and shapes of the Notches can match the desired properties be adapted to the antenna.
  • the antenna works like that Interconnection of two or more planar inverted-F antennas, some parts of the spotlight shared by everything become.
  • the antenna according to the invention requires a feed connection and one or more ground connections, which are shaped arbitrarily can be to adjust possible frequency responses.
  • the connection points for the supply indicated in the drawings and ground connection can and must also be interchanged not necessarily at the edge or a corner of the radiator structure lie.
  • the position for the supply and the ground connection can also lie on other sides or edges of the radiator structure.
  • the antenna according to the invention can be assigned to it own mass plate, as in connection with the figures 3 to 5 has been carried out, or the metallic Parts and surfaces of the radio-operated communication terminal use as a ground plate.
  • the additional ground area can be of any shape and need not must be adapted to the shape of the radiator element.
  • the individual parts of the radiator element can be different Heights, e.g. through cranking or inclines, have opposite the ground surface.
  • the antenna can be used to reduce the length also compressed by suitable vertical structuring be shortened or shortened by suitable folding.
  • the type of folding can be done arbitrarily and can be realized in different technologies. It the radiator element alone can also have the associated ground plane be structured accordingly.
  • this antenna is that part of the radiator length, which determines the lowest frequency, can also be used for radiation at higher frequencies can. This allows the space requirement or the volume requirement be kept small. Since you are at the only base of the Antenna has an impedance of 50 ohms for all frequency ranges is no longer an additional external circuit necessary.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Waveguide Aerials (AREA)
EP00100923A 1999-01-26 2000-01-18 Antenne pour terminaux de radiocommunication sans fil Ceased EP1026774A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19903005 1999-01-26
DE19903005 1999-01-26

Publications (2)

Publication Number Publication Date
EP1026774A2 true EP1026774A2 (fr) 2000-08-09
EP1026774A3 EP1026774A3 (fr) 2000-08-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP00100923A Ceased EP1026774A3 (fr) 1999-01-26 2000-01-18 Antenne pour terminaux de radiocommunication sans fil

Country Status (2)

Country Link
US (1) US6483462B2 (fr)
EP (1) EP1026774A3 (fr)

Cited By (39)

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WO2002017434A1 (fr) * 2000-08-22 2002-02-28 Skycross, Inc. Antenne a ligne d'emission a impedance variable syntonisable, a gain eleve, avec aile d'accord et de rayonnement
DE10054192A1 (de) * 2000-11-02 2002-05-29 Inst Mobil Und Satellitenfunkt Planare Mobilfunkantenne
EP1209760A2 (fr) * 2000-11-22 2002-05-29 Matsushita Electric Industrial Co., Ltd. Antenne incorporée pour un appareil de radiotéléphonie
FR2818811A1 (fr) * 2000-12-26 2002-06-28 France Telecom Antenne imprimee pastille compacte
EP1223640A2 (fr) * 2000-12-11 2002-07-17 Sony Corporation Dispositif d'antenne et terminal mobile sans fil
US6429820B1 (en) 2000-11-28 2002-08-06 Skycross, Inc. High gain, frequency tunable variable impedance transmission line loaded antenna providing multi-band operation
DE10206426A1 (de) * 2001-05-04 2002-11-07 Acer Comm & Multimedia Inc Dualfrequenzbandantenne mit gefalteter Struktur und entsprechendes Verfahren
DE10223497A1 (de) * 2001-05-25 2002-11-28 Chi Mei Comm Systems Inc Dualbandantenne mit drei Resonatoren
EP1263083A2 (fr) * 2001-06-01 2002-12-04 Matsushita Electric Industrial Co., Ltd. Antenne en F inversée et appareil portable de communication incorporant une telle antenne
WO2003003515A1 (fr) * 2001-05-31 2003-01-09 Skycross, Inc. Antenne a ligne de transmission a impedance variable, syntonisable, a gain eleve, pourvue de plaques superieures profilees
EP1286417A2 (fr) * 2001-08-03 2003-02-26 Siemens Aktiengesellschaft Antenne pour dispositifs de radiocommunication
EP1122815A3 (fr) * 2000-02-02 2003-05-21 Nokia Corporation Antenne pour téléphone mobile
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WO2004001894A1 (fr) * 2002-06-25 2003-12-31 Fractus, S.A. Antenne multibande pour terminal portable
EP1376761A1 (fr) * 2001-03-15 2004-01-02 Matsushita Electric Industrial Co., Ltd. Dispositif d'antenne
EP1425820A1 (fr) * 2001-09-13 2004-06-09 Fractus, S.A. Plans de sol de couverture de l'espace a niveaux multiples pour antennes multibandes miniatures
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DE10236598B4 (de) * 2002-04-11 2005-11-24 Samsung Electro-Mechanics Co., Ltd., Suwon Mehrband-Einbauantenne
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US20010050635A1 (en) 2001-12-13
EP1026774A3 (fr) 2000-08-30

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