EP3349303A1 - Dispositif d'antenne combine - Google Patents

Dispositif d'antenne combine Download PDF

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Publication number
EP3349303A1
EP3349303A1 EP18150321.0A EP18150321A EP3349303A1 EP 3349303 A1 EP3349303 A1 EP 3349303A1 EP 18150321 A EP18150321 A EP 18150321A EP 3349303 A1 EP3349303 A1 EP 3349303A1
Authority
EP
European Patent Office
Prior art keywords
antenna
dimensional
planar
substrate
flat
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.)
Pending
Application number
EP18150321.0A
Other languages
German (de)
English (en)
Inventor
Ivan Ndip
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of EP3349303A1 publication Critical patent/EP3349303A1/fr
Pending 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H01Q21/065—Patch antenna array
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
    • H01Q21/293—Combinations of different interacting antenna units for giving a desired directional characteristic one unit or more being an array of identical aerial elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/002—Antennas or antenna systems providing at least two radiating patterns providing at least two patterns of different beamwidth; Variable beamwidth antennas
    • 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
    • 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
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/02—Refracting or diffracting devices, e.g. lens, prism

Definitions

  • the invention relates to an antenna device and in particular to an antenna device having at least one flat antenna and at least one three-dimensional antenna.
  • the antenna device according to the invention is based on the inventor, Dr. med. Ivan Ndip, also referred to below as the Ndip antenna.
  • antennas such as monopole antennas, dipole antennas, patch antennas, bondwire antennas, etc. emit most of their energy primarily in a preferred direction, i. either in the vertical direction (elevation plane) or in the horizontal direction (azimuthal plane).
  • a patch antenna is one of the directional flat antennas that radiate most of their energy in the vertical direction.
  • a known patch antenna is for example in Figure 1A displayed.
  • FIG. 1B shows the associated directional characteristics, it being recognized that little to no radiation in the horizontal plane (represented by the points A and B) is emitted. For this reason, communication at this level is very difficult if not impossible.
  • FIG. 1C a known from the prior art antenna assembly 5 shown.
  • This antenna arrangement 5 has four individual flat antennas 1, 2, 3, 4, which are arranged symmetrically around a power distribution unit 6.
  • each of the four flat antennas each forms a cube side.
  • this antenna cube radiates in the corresponding four directions.
  • the antenna device has a substrate with a first main side and a second main side opposite the first main side, wherein a metallization is arranged at least in sections on the second main side of the substrate. At least one flat antenna is arranged on the first main side of the substrate.
  • a flat antenna is an antenna whose length and width are significantly larger than their thickness. Flat antennas thus extend primarily in one plane, ie in at least two different spatial directions, for example in an x-direction and a y-direction.
  • the flat antennas may include patch antennas, panel antennas and microstrip antennas, for example.
  • Flat antennas are usually arranged flat on a substrate.
  • At least one three-dimensional antenna is additionally arranged on the first main side of the substrate.
  • a three-dimensional antenna extends primarily three-dimensionally in space, ie in at least one further spatial direction, for example in a z-direction, compared to the planar antenna.
  • the three-dimensional antenna thus extends at least in one of the two spatial directions (eg x-direction and / or y-direction), which span the plane of extent (eg xy plane) of the planar antenna and additionally in a different spatial direction (eg z-direction ).
  • the planar antenna extends in a plane parallel to one of the two main sides of the substrate, while the three-dimensional antenna is at least partially spaced from the first main side of the substrate.
  • the three-dimensional antenna and the planar antenna are galvanically connected to one another.
  • the two antennas either have a common signal feed-in section, or the two antennas are serially coupled according to a second case. In both cases, both antennas are fed with the same signal.
  • the advantage with this invention is that the emission characteristic of the flat antenna can be advantageously combined with the emission characteristic of the three-dimensional antenna.
  • the flat antenna shines preferably in (relative to the substrate plane) from vertical direction, while the three-dimensional antenna preferably radiates in (with respect to the substrate plane) horizontal direction.
  • the two antennas are combined in such a way that the radiation coupling between the two antennas is lowest where they have their extreme field strength values.
  • one of the two antennas has a current maximum at the point where the other of the two antennas has a current minimum.
  • Such a suitable combination can be influenced, for example, by judicious choice of the geometric lengths of the two antennas.
  • the antenna device 10 according to the invention is based on the inventor, Dr. med. Ivan Ndip, hereinafter also referred to as Ndip antenna.
  • FIGS. 2A and 2 B show an inventive Ndip antenna 10 according to a first embodiment.
  • the Ndip antenna 10 has a substrate 11 having a first main side 11A and a second main side 11B opposite the first main side 11A.
  • a metallization 12 is arranged at least in sections.
  • At least one flat antenna 14 and at least one three-dimensional antenna 13 are arranged on the first main side 11A of the substrate 11.
  • the flat antenna 14 may be, for example, a patch antenna.
  • the three-dimensional antenna 13 may be, for example, a ribbon bond antenna.
  • the three-dimensional antenna 13 is a thin wire, such as a bonding wire.
  • the planar antenna 14 extends in a plane 15 parallel to one of the two major sides 11A, 11B of the substrate 11. That is, the planar antenna 14 is arranged flat on the surface of the first main side 11A of the substrate 11. In other words, the substrate 11 and the planar antenna 14 arranged thereon extend in an X-Y plane with respect to the drawn coordinate system, wherein the planar antenna 14 may preferably be arranged along the entire first main side 11A of the substrate 11 on the same.
  • the three-dimensional antenna 13 is at least partially spaced from the first main side 11A of the substrate 11. That is, the three-dimensional antenna 13 extends from a first point 13A on the surface of the first main side 11A of FIG Substrate 11 to a second point 13 B on the surface of the first main side 11 A of the substrate 11 and is spaced between these two points 13 A, 13 B from the surface of the first main side 11 A of the substrate 11.
  • the three-dimensional antenna 13 is here in the vertical direction, or in a Z-direction with respect to the drawn coordinate system, spaced from the planar antenna 14 and from the surface of the first main side 11A of the substrate 11.
  • the three-dimensional antenna 13 and the flat antenna 14 are arranged symmetrically along a common straight line 51.
  • the common straight line 51 runs parallel to the three-dimensional antenna 13 and, in particular, the three-dimensional antenna 13 lies exactly on this common straight line 51.
  • the common straight line 51 also extends centrally through the planar antenna 14
  • the three-dimensional antenna 13 and the flat antenna 14 are galvanically connected to each other.
  • the three-dimensional antenna 13 and the flat antenna 14 have a common signal feed section 16.
  • the three-dimensional antenna 13 and the flat antenna 14 are galvanically connected to each other at this signal feed section 16.
  • a signal is fed to the common signal feed-in section 16 so that the same signal is applied to both the flat antenna 14 and the three-dimensional antenna 13.
  • the flat antenna 14 and the three-dimensional antenna 13 are connected in parallel with each other in this configuration.
  • a first attachment portion 17 is disposed on the first main side 11A of the substrate 11.
  • the three-dimensional antenna 13 has a first attachment portion 13A to which the three-dimensional antenna 13 is galvanically connected to the first attachment portion 17.
  • the attachment area 17 can be a bond pad, for example.
  • the first attachment portion 13A of FIG Three-dimensional antenna 13 is mechanically fastened to this attachment area 17.
  • the three-dimensional antenna 13 also has a second attachment portion 13B that electrically and mechanically connects the three-dimensional antenna 13 to the common signal feeding portion 16.
  • the second attachment portion 13B may also serve to galvanically and mechanically connect the three-dimensional antenna 13 to the planar antenna 14, such as in FIG FIG. 5C shown.
  • the flat antenna 14 has a geometric length L, which in the FIGS. 2A and 2 B designated by the reference numeral 21. Orthogonal to the current flow direction or to a main extension direction 21 of the planar antenna 14, various positions 22, 23, 24 are shown, at which the geometric length L of the planar antenna is indicated as a function of the wavelength ⁇ of the injected signal.
  • the three-dimensional antenna 13 may have the largest vertical spacing 26 from the flat antenna 14 at just that location.
  • the coupling may be, for example, a capacitive coupling, as in FIG Figure 2C shown.
  • the respective antenna 13, 14 could be capacitively coupled to the metallization 12 on the second major side 11B of the substrate 11 due to the displacement current density 29 passing through the dielectric substrate 11.
  • the capacitive coupling or the quality of the capacitive coupling is dependent on the frequency of the injected signal.
  • the coupling can also be, for example, a galvanic coupling, as in FIG. 2D shown.
  • the respective antenna 13, 14 could be galvanically coupled to the metallization 12, for example, by means of a via 30 extending through the substrate 11, a so-called via 30.
  • the curve 31 depicts an approximated current profile in the three-dimensional antenna 13.
  • the curve 32 represents an approximated current profile in the planar antenna 14.
  • FIG. 4A shows a patch antenna 14 arranged on a substrate 11.
  • the diagram arranged next to it shows the emission characteristic of this patch antenna 14.
  • the main lobe 41 extends substantially vertically upwards, ie away from the substrate 11.
  • FIG. 4B shows a arranged on a substrate 11 three-dimensional bonding wire antenna 13.
  • the radiation characteristic of this bonding wire antenna 13 is shown.
  • two approximately kidney-shaped main lobes 42, 43 extend substantially in the horizontal plane, ie along the substrate plane.
  • Figure 4D shows for visual comparison the aforementioned emission characteristics in a common diagram.
  • the curve 44 represents the radiation characteristic of the flat antenna 14
  • the curve 45 represents the radiation characteristic of the three-dimensional antenna 13
  • the curve 46 represents the radiation characteristic of the Ndip antenna 10 according to the invention.
  • the curve 46 shows the emission characteristic of the Ndip antenna 10 according to the invention. It can be seen that the radiation takes place both in the vertical direction and in the horizontal direction along the substrate plane.
  • the Ndip antenna 10 according to the invention thus achieves a radiation characteristic which is clearly superior to the radiation characteristics of the individual antennas 13, 14, in such a way that the two antennas 13, 14 influence each other as little as possible and the signals of the two antennas 13, 14 superimpose as constructively as possible.
  • FIG. 5C shows a further embodiment with a flat antenna 14 arranged on a substrate 11 and a three-dimensional antenna 13 arranged on the substrate 11.
  • a first end 13A and a first attachment portion 13A of the three-dimensional antenna 13 while still on the mounting portion 17 is arranged.
  • the second end 13B and the second attachment portion 13B are disposed on the planar antenna 14 and may be coupled to the planar antenna 14 mechanically as well as optionally galvanically.
  • FIG. 6 shows a further embodiment of an inventive Ndip antenna 10.
  • the Ndip antenna 10 has here in addition to the aforementioned first three-dimensional antenna 13 at least one further three-dimensional antenna 13 ', 13 ", 13'” on. As described above, each of these further three-dimensional antennas 13 ', 13 ", 13'” can again have two or more bonding wires or ribbons.
  • FIG. 7 shows a further embodiment with an antenna array according to the invention 100.
  • the antenna array 100 includes an Ndip antenna 10, as previously with reference to the FIGS. 2A to 6 was described on. That is, the antenna array 100 includes an Ndip antenna 10 having a flat antenna 14 disposed on a substrate 11 and a three-dimensional antenna 13 disposed on the substrate 11.
  • the antenna array 100 has a second antenna device 70 disposed on the same substrate 11.
  • the second antenna device 70 corresponds structurally, as well as in terms of its possible embodiments, to the previously described Ndip antenna 10.
  • the second antenna device 70 thus also has a second flat antenna 74 arranged on the first main side 11A of the substrate 11 and a second three-dimensional antenna 73.
  • the second flat antenna 74 extends in a plane parallel to one of the two main sides 11A, 11B of the substrate 11, and the second three-dimensional antenna 73 is at least partially spaced from the first main side 11A of the substrate 11.
  • FIG. 8B An antenna array 100 according to the invention with three Ndip antennas 10, 70, 80 is shown as an example, all of which are arranged together on a substrate 11. All of the features and functions mentioned above with respect to a single Ndip antenna 10 apply to the same extent to each of the in FIG. 8B imaged Ndip antennas 10, 70, 80.
  • the housing 34 includes a terminal 38 which is connected to the Ndip antenna 10.
  • Terminal 38 is configured to be connected to a signal output of a radio frequency chip. This means that via the terminal 38, for example, a high-frequency signal can be received, which can be converted by the Ndip antenna 10 into a radio signal.
  • the housing 34 may have another terminal connected to the metallization 12. Alternatively, the metallization 12 may also form an outer wall of the housing 34 to facilitate contacting the metallization 12 with other components in a straightforward manner.
  • the terminal 38 may be connected to the electrically conductive structure, which is designed, for example, as a via. Terminal 38 may serve to provide a vertical connection to Ndip antenna 10 to excite Ndip antenna 10, such as probe feed. Thus, the terminal 38 may provide contact with the environment of the antenna device 90.
  • the three-dimensional antenna 13 and the planar antenna 14 are combined such that radiation coupling between the two antennas 13, 14 is minimal at those points is where they each have their maximum field strength values. This then results in constructive interference.
  • the current distribution on patch 14 is proportional to sin 2 ⁇ L ⁇ . because the patch 14 has an open end, ie the patch antenna 14 is not completed.
  • a current distribution is established which is proportional to cos 2 ⁇ L ⁇ is because the end of the three-dimensional antenna 13 is completed or shorted.
  • the maximum value of the current on the three-dimensional antenna 13 is about where the minimum value of the current of the patch antenna 14 is, as in FIG. 3 shown.
  • the inventive Ndip antenna 10 emits very well both in the horizontal (azimuthal) plane and in the vertical (elevation) plane, as in FIG. 4C is shown.
  • the start and end points of the three-dimensional antenna 13 may be on the common signal feed section 16 and the first mounting region 17, for example. At least one of the two endpoints but can also be arranged arbitrarily, 360 ° around the flat antenna 14, on the substrate 11.
  • the inventive Ndip antenna 10 may also be constructed as a multi-band antenna.
  • the three-dimensional antenna 13 and the flat antenna 14 can be optimized for respectively different resonance frequencies or multiples of the fundamental resonance frequency. Thus, multiple transmission bands can be achieved.
  • the Ndip antenna 10 can be fed in different ways.
  • a planar feed e.g., microstrip line, co-planar feed
  • the common signal feed-in section 16 can be connected to a stripline (microstrip) in order to obtain an electrical signal.
  • the electrical signal can be fed by means of electromagnetic coupling, for example by means of a so-called Aperture Feed or by a near field feed (English: Proximity Feed), and / or by a vertical contact, for example using a via (Via).
  • the three-dimensional antenna 13 and the flat antenna 14 may be connected in parallel or in series.

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  • Details Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
EP18150321.0A 2017-01-05 2018-01-04 Dispositif d'antenne combine Pending EP3349303A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017200129.1A DE102017200129A1 (de) 2017-01-05 2017-01-05 Ndip-Antenne

Publications (1)

Publication Number Publication Date
EP3349303A1 true EP3349303A1 (fr) 2018-07-18

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ID=60923405

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18150321.0A Pending EP3349303A1 (fr) 2017-01-05 2018-01-04 Dispositif d'antenne combine

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US (1) US10727594B2 (fr)
EP (1) EP3349303A1 (fr)
DE (1) DE102017200129A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11108141B2 (en) * 2018-09-12 2021-08-31 Taoglas Group Holdings Limited Embedded patch antennas, systems and methods

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0163454A2 (fr) * 1984-05-18 1985-12-04 Nec Corporation Antenne à microbande ayant une antenne unipolaire
EP1596469A1 (fr) * 2003-02-19 2005-11-16 Matsushita Electric Industrial Co., Ltd. Ensemble antenne
US20060028378A1 (en) * 2004-08-06 2006-02-09 Gaucher Brian P Apparatus and methods for constructing antennas using wire bonds as radiating elements
DE102006023123A1 (de) * 2005-06-01 2007-01-11 Infineon Technologies Ag Halbleitermodul mit Komponenten für Höchstfrequenztechnik in Kunststoffgehäuse und Verfahren zur Herstellung desselben

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0217426A3 (fr) * 1985-08-08 1988-07-13 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Dispositif d'antenne microbande
AU6450400A (en) * 1999-06-21 2001-01-09 Thomson Licensing S.A. Device for transmitting and/or receiving signals
WO2001045204A1 (fr) 1999-12-15 2001-06-21 Mitsubishi Denki Kabushiki Kaisha Circuit d'adaptation d'impedance et antenne utilisant ce circuit d'adaptation d'impedance
EP1445821A1 (fr) * 2003-02-06 2004-08-11 Matsushita Electric Industrial Co., Ltd. Appareil de communication radio portable muni d'un bras de support
JP4868128B2 (ja) 2006-04-10 2012-02-01 日立金属株式会社 アンテナ装置及びそれを用いた無線通信機器
WO2017192881A1 (fr) 2016-05-06 2017-11-09 View. Inc. Antennes de fenêtre
KR101690259B1 (ko) * 2011-05-27 2016-12-28 삼성전자주식회사 안테나 구조체
US9362613B2 (en) * 2013-03-07 2016-06-07 Taiwan Semiconductor Manufacturing Company, Ltd. Bond wire antenna

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0163454A2 (fr) * 1984-05-18 1985-12-04 Nec Corporation Antenne à microbande ayant une antenne unipolaire
EP1596469A1 (fr) * 2003-02-19 2005-11-16 Matsushita Electric Industrial Co., Ltd. Ensemble antenne
US20060028378A1 (en) * 2004-08-06 2006-02-09 Gaucher Brian P Apparatus and methods for constructing antennas using wire bonds as radiating elements
DE102006023123A1 (de) * 2005-06-01 2007-01-11 Infineon Technologies Ag Halbleitermodul mit Komponenten für Höchstfrequenztechnik in Kunststoffgehäuse und Verfahren zur Herstellung desselben

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NDIP I ET AL: "Modelling the shape, length and radiation characteristics of bond wire antennas", IET MICROWAVES, ANTENNAS & PROPAGATION, THE INSTITUTION OF ENGINEERING AND TECHNOLOGY, UNITED KINGDOM, vol. 6, no. 10, 17 July 2012 (2012-07-17), pages 1187 - 1194, XP006042568, ISSN: 1751-8725, DOI: 10.1049/IET-MAP.2012.0147 *

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Publication number Publication date
DE102017200129A1 (de) 2018-07-05
US20180191071A1 (en) 2018-07-05
US10727594B2 (en) 2020-07-28

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