EP1819013A1 - Antenne dipôle - Google Patents

Antenne dipôle Download PDF

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Publication number
EP1819013A1
EP1819013A1 EP07001099A EP07001099A EP1819013A1 EP 1819013 A1 EP1819013 A1 EP 1819013A1 EP 07001099 A EP07001099 A EP 07001099A EP 07001099 A EP07001099 A EP 07001099A EP 1819013 A1 EP1819013 A1 EP 1819013A1
Authority
EP
European Patent Office
Prior art keywords
conductor
dipole antenna
conductors
radiator
radiating element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07001099A
Other languages
German (de)
English (en)
Inventor
Marc Rickenbrock
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.)
Lumberg Connect GmbH
Original Assignee
Lumberg Connect GmbH
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 Lumberg Connect GmbH filed Critical Lumberg Connect GmbH
Publication of EP1819013A1 publication Critical patent/EP1819013A1/fr
Withdrawn legal-status Critical Current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
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • 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
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
    • 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

  • Electrical conductor for a radiating element of a monopole or dipole antenna which has a contact region for an RF source, and at least folded back to shorten its longitudinal extent and thus has at least two conductor sections, each having an axis of extension, preferably associated by a connecting portion spaced apart parallel are, and extending with a first conductor portion from the contact area in the room and extends with a second refolded conductor portion approximately in the direction of the contact area, wherein the first and second conductor portion span a conductor plane, and the first conductor portion has an alternating course around its extension axis ,
  • dipole antennas Such electrical conductors as part of antennas, in particular of dipole antennas are well known from the prior art.
  • dipole antennas two electrical conductors extending in opposite directions into the space form a radiating element for the transmitting and receiving operation.
  • the length of the two poles of the dipole forming electrical conductors are determined by the respective resonant frequency or the frequency band in which the dipole antenna is to be operated.
  • Each of the conductors has a length of ⁇ / 4 so that the dipole antenna has a total length of ⁇ / 2. Therefore, especially at lower resonance frequencies, a dipole antenna has a comparatively long longitudinal extent.
  • antennas are increasingly required, which operate in several frequency bands or at different resonance frequencies in the transmitting as well as in the receiving mode.
  • the communication devices such as mobile phones
  • additional functions and components such as e.g. Cameras and larger displays, equipped and additionally further reduced in their design, so that the installation space for corresponding multi-band antennas is getting smaller.
  • WO 2005/076407 are applied to a substrate applied conductor structures, which by a refolding and one around the Extension axis of a conductor section alternating course are slightly shortened.
  • an electrical conductor with the features of claim 1, in particular with the features of the characterizing part, according to which additionally at least also the second conductor section has an alternating course around its extension axis.
  • the abovementioned advantages for example that of a refolded dipole antenna, can be advantageously utilized to reduce the antenna design while substantially shortening the longitudinal extent of the electrical conductors.
  • the electrical conductor according to the invention can act as a monopole over a base plate. By means of the electrical conductor according to the invention can therefore be produced much smaller, powerful antennas
  • At least one conductor section extends at least two-dimensionally alternately in the conductor plane.
  • the conductor section for example, zigzag around the extension axis may be formed alternately or meandering around its extension axis.
  • the electrical conductor can be substantially shortened further in its longitudinal extent by at least one conductor section being designed to be three-dimensionally alternating about its extension axis.
  • the electrical conductor can be formed as a conductor on a dielectric material or represents a substantially cantilevered conductor.
  • Unsupported means in particular that the conductor is not applied to a substrate, less that arranged the conductor without any support in space is.
  • the electrical conductor according to the invention is formed in a particularly preferred embodiment as a stamped part, in particular a film or a flat sheet, which substantially simplifies the production of such an antenna.
  • An at least partially alternately formed, manufactured as a stamped conductor can also be particularly easily formed three-dimensionally alternating by being folded alternately at an angle to a stamping part plane. In this case, a zigzag-shaped folding of at least one conductor section around its extension axis offers itself.
  • the electrical conductor according to the invention can be further reduced in addition to a shortening in the longitudinal extent by the lying in the refolding region of the first and second conductor portion connecting portion is formed around its axis of extension alternately.
  • the solution of the problem consists in a dipole antenna with the features of claim 10, in particular the characterizing Characteristics, according to which at least one electrical conductor is formed according to the preamble of claim 1.
  • the electrical conductor according to at least one of claims 1 to 9 is formed.
  • Particularly preferred is an embodiment with mirror-symmetrical to each other electrical conductors, each having a first and second conductor section with alternating about the respective extension axis course.
  • Such a dipole antenna is characterized by a very small design and good transmission and / or reception properties.
  • the dipole antenna as a multiband dipole antenna, which has at least one additional radiating element matched to another frequency band for transmission and reception in at least one further frequency band, comprising two electrical conductors each forming one pole of the dipole, each having a contact region have, which is associated with a radiator center, wherein the conductors of the additional radiating element are arranged in the respective conductor plane, which is spanned by the conductors of the first radiating element.
  • the conductor level is a purely geometric plane in which the electrical conductors can be arranged to save space.
  • the various radiator elements are so interlaced nested.
  • the electrical conductors of additional radiator elements may also be formed according to at least one of claims 1 to 9.
  • the electrical conductors of the radiator element with a lower resonant frequency span the conductor plane for the electrical conductors of the radiator element with a higher resonant frequency.
  • a multi-band dipole antenna can be further reduced in size, if two radiator elements together form an additional radiator element by means of capacitive and / or inductive coupling.
  • the transmission and / or reception properties of a multiband dipole antenna can be further improved and the manufacturing outlay can be further reduced if the respective contact regions of the conductors of the radiator elements located in the same conductor plane are conically aligned in the direction of the radiator center and form a common contact in the radiator center.
  • a radiator element with a reflector for directing the transmission and / or reception power can be provided.
  • a monopole antenna according to claim 19 which is characterized in that the at least one arranged above a base plate electrical conductor according to at least one of claims 1 to 9 is formed.
  • a dipole antenna is designated overall by the reference numeral 10.
  • the dipole antenna 10 has a radiator element 11, which is formed from two electrical conductors 12.
  • the respective conductor 12 of the radiating element forms in each case one pole of the dipole antenna 10.
  • the electrical conductors 12 are mirror-symmetrical to each other and as known from the prior art, folded back approximately U-shaped (area R), so that the respective conductor 12 is shortened in its longitudinal extent.
  • the exemplary embodiment is a self-supporting conductor 12, and consequently also a self-supporting radiating element 11.
  • Self-supporting means that the conductors 12 are not applied to a dielectric carrier material, in particular in the form of a conductor track.
  • the conductor 12 or the emitter element 11 is much more essentially directed by means of the rigidity of the conductor material, such as a wire or stamped part of a sheet, cantilevered into the room.
  • the conductors may be partially supported by means not shown to stabilize their orientation in space.
  • Such conductors 12 are preferred according to the invention, since their transmission and / or reception power is not influenced by carrier materials.
  • Each conductor 12 has a first conductor section 15 with a contact region 14 assigned to the beam center 13.
  • the first conductor section 15 extends from a Strahlerzentraum 13, which is in the region of contacts 20, in the space along its extension axis 16.
  • a second conductor portion 17 of the conductor 12 extends along its extension axis 18 back in the direction of the radiator center thirteenth ,
  • the conductor sections 15 and 18 are arranged at a distance from one another in the refolding region R of the conductor 12 via a common connection section 19 and in the present case are aligned parallel to one another by means of the common connection section 19.
  • the respective conductor 12 is further shortened in addition to the known refolding (region R) by the first and the second conductor portion 15/17 is formed alternately about its respective extension axis 16 and 18 respectively.
  • the second conductor section 17 does not necessarily have to have an alternating course around its extension axis 18 if the first alternately formed conductor section 15 has at least one longitudinal extension which corresponds to the longitudinal extension of a refolded, but not alternately formed second conductor section ,
  • FIG. 1 shows by way of example a connection possibility of the antenna to an HF source.
  • the respective contact regions 14 of the conductors 12 each have a contact 20 in the radiator center 13, via which the conductors 12 forming the dipole are supplied with HF energy from an HF source 22 by means of suitable supply lines 21.
  • the leads 21 in a region which usually forms an antenna shaft are formed by a suitable coaxial cable or by a mechanical simulation of a coaxial arrangement, as shown in position 23.
  • the respective electrical conductors 12 forming a pole of the dipole span a conductor plane E.
  • the respective conductor plane E is only a geometric plane and not an antenna component.
  • Fig. 2 only the conductors 12 of the radiating element 11 of the dipole antenna 10 are shown in an alternative embodiment.
  • the first conductor sections 15, starting from their contact regions 14, first extend into the space until the conductor 12 is folded back in the refolding region R in a shortened manner and the second conductor sections 17 again extend in the direction of the radiator center 13.
  • the radiator element shown in Fig. 1 not only the first and second conductor sections 15/17 extend alternately about their extension axes 16/18.
  • the connecting sections 19 also have an alternating course around the extension axis 24.
  • the conductors 12 are formed in Fig. 2 meandering, wherein in the present case each meander is formed angular.
  • the meander in a manner not shown may also be arcuate or in another, generally space-filling arrangement formed.
  • FIG. 3 shows a schematic view of a dual-band dipole antenna 25.
  • a first radiator element 11 is formed by two refolded electrical conductors 12, which are designed for transmitting and receiving operation at a low resonance frequency, for example in the 900 MHz mobile radio band. These conductors 12 are shown in detail in the description of FIG.
  • An additional second radiator element 26 is formed by two additional conductors 27, which are designed, for example, for the second in Europe common mobile frequency band of 1800 MHz. These are space-saving arranged in the spanned by the first electrical conductors 12 conductor planes E, so that compared to the illustration in Fig. 1, no additional space for the arrangement of the additional electrical conductor 27 of the second radiating element is needed.
  • the electrical conductors 27 each have a conductor section 28, which is connected by means of contact region 29 with a suitable feed line, not shown, for example a feed line 21 in FIG. 1, to an HF source.
  • the contact regions 29 of the second radiating element 26 and the contact regions 14 of the first radiator element 11 each have a common contact 20.
  • the conductors 27 of the second radiating element 26 are arranged within the conductor plane E, which is spanned by the conductors 12 of the first radiating element 11. In order to minimize a coupling between the two radiating elements 11 and 26, which significantly affect the reception and transmission power, the conductors 27 are arranged sufficiently spaced from the conductors 12.
  • the conductor level E of conductors 12 with low resonant frequency for the respective conductor 28 of the radiator element 26 is clamped at a higher resonant frequency in order to nest the radiator elements 11, 26 space-saving and so make the dual-band antenna 25 as small as possible.
  • the conductor portions 28 of the second radiating element 26 are also formed alternately about their extension axis 30, if necessary, to arrange them within the conductor plane E.
  • the conductors 27 in the conductor plane E can also be folded back so that the conductors 27 of the second radiator element 26 have second conductor sections 31 in addition to the first conductor sections 28. Analogous to the conductors 12 and the conductor sections 28 and 31 of the conductors 27 are arranged by connecting portions 32 spaced from each other.
  • the second conductor section 31 can be shortened by alternating about its extension axis 42.
  • comparatively long conductors 27 can also be arranged in the conductor plane E not indicated in FIG. 4 for the sake of clarity, so that a dipole-type dipole antenna with a small space requirement can be created.
  • FIG. 5 shows the preferred embodiment of a dual-band dipole antenna 25 according to FIG. 3. It is characterized in particular in that the conductor structure 34 of the radiator elements 11 and 26, which are formed from the conductors 12 and 27, consists of a thin sheet or a foil is punched out. In this case, the conductor structure 34 is zigzag-shaped and planar.
  • the width of the conductors 12 and 27 does not necessarily have to be constant, as shown in particular by the conductors 12.
  • the formed as stamped parts conductor structures 34 can be produced particularly easily and inexpensively.
  • FIG. 6 shows how, by consistent application of the concept of the invention shown in FIGS. 1 to 5, a single-band or dual-band dipole antenna 10/25 can be further developed into an extremely compact and powerful multiband dipole antenna 33.
  • the multiband dipole antenna 33 is present in the present case of two punched conductor structures 35 because of the ease of manufacture.
  • the two punched conductor structures 35 form with their respective conductors 12, 27, 36 and 37 each have a pole of four radiator elements (radiating element 11 with the pair of conductors 12, radiator element 26 with the pair of conductors 27, radiator element 40 with the pair of conductors 36, radiator element 41 with the pair of conductors 37).
  • Each conductor pair 12, 27, 36, 37 forms a radiating element adapted to a specific frequency band.
  • the conductors of a stamped part 35 with their contact regions 14, 29, 38, 39 each form a common contact 20 for connection to a suitable HF source, for example the RF source 22 in FIG. 1.
  • the folded-back conductors 12 which are examples of conductors with a low resonance frequency, span a conductor plane E (see FIGS. 1 and 3), which for reasons of clarity are not shown in FIG is designated.
  • the respective conductor level E are the conductors 36, 37 and 27, which are designed for the transmitting and receiving operation at lower resonance frequencies.
  • a dipole antenna designed in this way can serve, for example, the most important mobile radio frequencies between 850 and 2200 MHz, namely GSM 850, 900, 1800, 1900 as well as the UMTS frequencies. This is shown by way of example in FIG. 7.
  • the individual conductors 12, 27, 36 and 37 are basically mirror-symmetrical to one another. However, this is not absolutely necessary.
  • the design of the individual conductors 12, 27, 36 and 37 or the radiator elements formed by means of the conductors 12, 27, 36, and 37 depends on the desired reception and transmission properties of the antenna.
  • dipole antenna which assumes even more compact dimensions by further folding of their conductors.
  • this embodiment can be described, for example, with reference to FIG. 5.
  • the preferably punched-out conductor structures 34 are already considerably shortened by their alternating configuration and refolding in their longitudinal extent in relation to the known dipole antennas. A further reduction can be achieved if the conductors, in Fig. 5, the conductors 12 and 27, are folded at an angle to the plane of its two-dimensional alternating course or at an angle to the punching plane and thus form a three-dimensional structure. It is particularly advantageous if this fold also runs alternately about the extension axis, whereby a zigzag-shaped fold proves to be advantageous.
  • the radiating elements of the dipole antenna are provided with at least one reflector in order to align the transmitting and receiving power of the antenna as desired.

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  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Details Of Aerials (AREA)
  • Aerials With Secondary Devices (AREA)
EP07001099A 2006-02-10 2007-01-19 Antenne dipôle Withdrawn EP1819013A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006006144A DE102006006144A1 (de) 2006-02-10 2006-02-10 Dipolantenne

Publications (1)

Publication Number Publication Date
EP1819013A1 true EP1819013A1 (fr) 2007-08-15

Family

ID=38008124

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07001099A Withdrawn EP1819013A1 (fr) 2006-02-10 2007-01-19 Antenne dipôle

Country Status (5)

Country Link
US (1) US20070188399A1 (fr)
EP (1) EP1819013A1 (fr)
CN (1) CN101026261A (fr)
CA (1) CA2576631A1 (fr)
DE (1) DE102006006144A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3032644A1 (fr) * 2014-12-12 2016-06-15 Compal Broadband Networks Inc. Antenne dipole

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10224637B2 (en) * 2012-07-09 2019-03-05 Jasmin ROY Reciprocal circular polarization selective surfaces and elements thereof
US9257748B1 (en) * 2013-03-15 2016-02-09 FIRST RF Corp. Broadband, low-profile antenna structure
US20150092887A1 (en) * 2013-09-30 2015-04-02 Richard Strnad Compact antenna-transmitter system
US10074888B2 (en) 2015-04-03 2018-09-11 NXT-ID, Inc. Accordion antenna structure
KR102431624B1 (ko) * 2018-05-11 2022-08-12 주식회사 아이뷰 소형 다이폴 안테나
WO2019216672A1 (fr) * 2018-05-11 2019-11-14 주식회사 아이뷰 Petite antenne dipôle
US10811778B2 (en) * 2018-12-21 2020-10-20 Waymo Llc Center fed open ended waveguide (OEWG) antenna arrays
CN112635976B (zh) * 2020-12-17 2023-06-30 中北大学 一种锯齿形偶极子5g基站天线单元

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021762A1 (fr) * 1979-06-14 1981-01-07 Matsushita Electric Industrial Co., Ltd. Système d'antenne accordée électroniquement
EP0814536A2 (fr) * 1996-06-20 1997-12-29 Kabushiki Kaisha Yokowo Antenne et appareil de radio utilisant une telle antenne
WO2001026182A1 (fr) * 1999-10-04 2001-04-12 Smarteq Wireless Ab Moyens d'antenne
WO2001076005A1 (fr) * 2000-04-03 2001-10-11 Allgon Mobile Communications Ab Dispositif antenne et dispositif de communication portable comprenant un tel dispositif antenne
US6603430B1 (en) * 2000-03-09 2003-08-05 Tyco Electronics Logistics Ag Handheld wireless communication devices with antenna having parasitic element
US20040132406A1 (en) * 2003-01-03 2004-07-08 Scott Jeff W. Tags, wireless communication systems, tag communication methods, and wireless communications methods
US20040222936A1 (en) * 2003-05-07 2004-11-11 Zhen-Da Hung Multi-band dipole antenna
GB2404497A (en) * 2003-07-30 2005-02-02 Peter Bryan Webster PCB mounted antenna
US20050264458A1 (en) * 2004-05-27 2005-12-01 Matsushita Electric Industrial Co., Ltd. Antenna device, and method of manufacturing the same antenna device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3074064A (en) * 1960-02-24 1963-01-15 Pickles Sidney Self-supporting dipole antenna with balanced-to-unbalanced transformer
US3229298A (en) * 1962-11-27 1966-01-11 Dean O Morgan Bent-arm multiband dipole antenna wherein overall dimension is quarter wavelength on low band
GB0030741D0 (en) * 2000-12-16 2001-01-31 Koninkl Philips Electronics Nv Antenna arrangement
US6791506B2 (en) * 2002-10-23 2004-09-14 Centurion Wireless Technologies, Inc. Dual band single feed dipole antenna and method of making the same
JP2006140789A (ja) * 2004-11-12 2006-06-01 Hitachi Cable Ltd 無視認アンテナ

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021762A1 (fr) * 1979-06-14 1981-01-07 Matsushita Electric Industrial Co., Ltd. Système d'antenne accordée électroniquement
EP0814536A2 (fr) * 1996-06-20 1997-12-29 Kabushiki Kaisha Yokowo Antenne et appareil de radio utilisant une telle antenne
WO2001026182A1 (fr) * 1999-10-04 2001-04-12 Smarteq Wireless Ab Moyens d'antenne
US6603430B1 (en) * 2000-03-09 2003-08-05 Tyco Electronics Logistics Ag Handheld wireless communication devices with antenna having parasitic element
WO2001076005A1 (fr) * 2000-04-03 2001-10-11 Allgon Mobile Communications Ab Dispositif antenne et dispositif de communication portable comprenant un tel dispositif antenne
US20040132406A1 (en) * 2003-01-03 2004-07-08 Scott Jeff W. Tags, wireless communication systems, tag communication methods, and wireless communications methods
US20040222936A1 (en) * 2003-05-07 2004-11-11 Zhen-Da Hung Multi-band dipole antenna
GB2404497A (en) * 2003-07-30 2005-02-02 Peter Bryan Webster PCB mounted antenna
US20050264458A1 (en) * 2004-05-27 2005-12-01 Matsushita Electric Industrial Co., Ltd. Antenna device, and method of manufacturing the same antenna device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3032644A1 (fr) * 2014-12-12 2016-06-15 Compal Broadband Networks Inc. Antenne dipole

Also Published As

Publication number Publication date
CN101026261A (zh) 2007-08-29
US20070188399A1 (en) 2007-08-16
DE102006006144A1 (de) 2007-08-23
CA2576631A1 (fr) 2007-08-10

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