EP1619752A1 - Module d'antenne - Google Patents

Module d'antenne Download PDF

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Publication number
EP1619752A1
EP1619752A1 EP05015079A EP05015079A EP1619752A1 EP 1619752 A1 EP1619752 A1 EP 1619752A1 EP 05015079 A EP05015079 A EP 05015079A EP 05015079 A EP05015079 A EP 05015079A EP 1619752 A1 EP1619752 A1 EP 1619752A1
Authority
EP
European Patent Office
Prior art keywords
antenna
module according
antenna module
patch
amplifier
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
EP05015079A
Other languages
German (de)
English (en)
Other versions
EP1619752B1 (fr
Inventor
Mehran Aminzadeh
Florian Scherbel
Meinolf Schafmeister
Keno Mennenga
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.)
Molex CVS Hildesheim GmbH
Original Assignee
Receptec 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 Receptec GmbH filed Critical Receptec GmbH
Publication of EP1619752A1 publication Critical patent/EP1619752A1/fr
Application granted granted Critical
Publication of EP1619752B1 publication Critical patent/EP1619752B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
    • H01Q1/3275—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted on a horizontal surface of the vehicle, e.g. on roof, hood, trunk
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • 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
    • H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
    • 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
    • H01Q9/0414—Substantially flat resonant element parallel to ground plane, e.g. patch antenna in a stacked or folded configuration

Definitions

  • the invention relates to an antenna module for frequencies in the GHz range, which can be attached to a motor vehicle.
  • Such an antenna module integrates various functions of roof antennas for motor vehicles.
  • microstrip patch antennas are known, which have a substrate which is metallized over its entire surface and has on its upper side a suitable metal structure or antenna structure.
  • Such antennas generally have a narrow frequency bandwidth, e.g. 1% to 2% relative bandwidth if no additional measures are foreseen.
  • parasitic elements By employing parasitic elements, greater bandwidth or the ability to cover multiple frequency bands can be achieved.
  • These parasitic elements are line structures which are formed on the same or a higher level than the antenna structure. When forming the parasitic elements on a higher antenna structure, these are coupled to the lower antenna structure, wherein a common RF tap on the lower antenna structure to an amplifier device takes place. In the parasitic elements high-frequency currents are induced, which adapt to the shape and dimension of the parasitic elements and thus in turn generate fields. This gives the entire structure the opportunity to radiate and receive even at neighboring frequencies or even at somewhat distant frequencies.
  • antenna modules with separate side-by-side antenna elements are typically used. However, this requires a lot of space. Furthermore, sufficient decoupling is necessary for proper functioning of the individual antenna elements.
  • EP 0 521 384 A1 shows an antenna module with an upper and a lower substrate, wherein an upper ⁇ / 2 antenna structure is applied to the upper substrate and a lower ⁇ / 2 antenna structure is applied to the lower substrate. Both antenna structures serve a metal layer provided below the lower substrate as a reference surface, so that a parallel connection of the two antenna resonant circuits results.
  • the invention has for its object to provide an antenna module that ensures a compact design and a versatile functionality with high security.
  • the lower patch antenna is designed to be larger than the upper patch antenna for effective radiation properties.
  • the patch antennas Independently of one another, the patch antennas have substrate materials on whose upper side corresponding ⁇ / 2 antenna structures are formed and whose undersides have a metallization or abut against a metallization. In principle, both substrates can be metallized on their underside. In such an embodiment, in principle, z. B. an additional Dielectric between the lower metallization of the upper patch antenna and the antenna structure of the lower patch antenna are.
  • the stacked patch antennas are decoupled.
  • the two metallizations of the patch antennas - i. the lower metallization of the lower patch antenna and the metallization of the upper patch antenna or acting as this antenna structure of the lower patch antenna separately formed.
  • EP 0 521 384 A1 the two metallizations of the patch antennas - i. the lower metallization of the lower patch antenna and the metallization of the upper patch antenna or acting as this antenna structure of the lower patch antenna separately formed.
  • EP 0 521 384 A1 less a broadband system, but an arrangement of two decoupled antennas is to be created.
  • ⁇ / 2 antenna elements or antenna structures are provided according to the invention. They are designed here for satellite reception, ie signals with circular polarization at an elevation angle of substantially 30 ° to 90 ° relative to the horizontal.
  • parasitic elements are optionally provided above the antenna base structure and coupled directly to the lower antenna structure, a separate tap for the separate upper ⁇ / 2 antenna structure is provided according to the invention.
  • the signals are advantageously tapped coaxially.
  • the preferably coaxial tap can in this case take place on the lower metallization of the lower patch antenna or a printed circuit board provided here.
  • a via may be provided by the lower patch antenna, which serves the two metallizations or the antenna structure of the lower patch antenna serving as metallization of the upper patch antenna and the metallization the lower patch antenna connects galvanically.
  • This through-connection advantageously takes place in the middle of the ⁇ / 2 antenna structure, since here there is a maximum of the current distribution and correspondingly a minimum of the magnitude of the voltage.
  • the laterally central region of the antenna structure can be short-circuited without causing any adverse effects on the current and field distribution.
  • the antenna module according to the invention may e.g. for receiving GPS signals in the L band, i. at 1575 MHz, and DAB worldStar (WorldSpace) satellite-based digital radio services in Africa and Asia at 1467 MHz to 1492 MHz and DMB (Digital Multimedia Broadcasting) in Far East Asia at 2630 MHz to 2655 MHz and SDARS (Satellite Digital Audio Reception System) be used at 2320 MHz to 2345 MHz in the US.
  • the selection of the frequency bands for the upper and lower patch antenna is done on the one hand by the dimensioning of the antenna structures.
  • the dielectric material of the substrates can be chosen such that the appropriate frequency bands are achieved.
  • the upper, smaller patch antenna can cover a service of lower frequency by the upper substrate has a correspondingly higher dielectric constant than the lower substrate.
  • the patch antennas may also receive terrestrial signals in addition to satellite reception; for example, the lower patch antenna for SDARS additionally received terrestrial.
  • the upper patch antenna is advantageously provided for GPS reception.
  • active patch receiving antennas are advantageously formed, with a low-noise amplifier (LNA) being integrated at the base of the antenna.
  • the low-noise amplifiers are mounted on the underside of a printed circuit board, on the upper side of which the lower patch antenna is provided.
  • one of the low-noise amplifiers may be provided on one printed circuit board and the other on a separate printed circuit board.
  • only parts of a low-noise amplifier can be constructed on a separate circuit board, this separate part preferably includes the DC voltage supply or regulation, so that the connection of the two circuit boards by a simple wire connection, e.g. a wire pin can be realized.
  • the antenna module according to the invention can additionally also have a terrestrial antenna, e.g. a (multi-band) monopole or a (multi-band) rod antenna such as e.g. for telephone services, AM / FM or terrestrial DAB in the L band (1452 MHz to 1492 MHz) and Band III (170 MHz to 230 MHz).
  • a terrestrial antenna e.g. a (multi-band) monopole or a (multi-band) rod antenna such as e.g. for telephone services, AM / FM or terrestrial DAB in the L band (1452 MHz to 1492 MHz) and Band III (170 MHz to 230 MHz).
  • the terrestrial antenna can be arranged in front of, behind or on the stack of patch antennas, advantageously in the direction of travel behind it.
  • a suitable filter technique is advantageously provided in the amplifiers, which suppresses the relatively strong transmission signal of the telephone antenna already at the input of the amplifier. This can protect the amplifier or the separate amplifier against saturation effects.
  • the antenna module can be designed as a group antenna with a plurality of elements each consisting of an upper patch antenna and a lower patch antenna.
  • the elements in the group can serve as transmitting and / or receiving antenna.
  • the antenna module can serve as a transmitting and receiving antenna, wherein one of the two patch antennas serves as a transmitting and the other as a receiving antenna; This is particularly useful in a group antenna, in each case one of the two antennas of each stack serves as a transmitting and the other as a receiving antenna.
  • An antenna module 1 shown in Fig. 1 comprises, as shown in Fig. 1, a base plate 2, e.g. may be formed as a metal plate, a mounted on the base plate 2 lower circuit board 3 and a parallel and above extending from this upper circuit board 4. Between the upper printed circuit board 4 and the base plate 2 are two in the lateral direction by a metallic wall 6 separate and electromagnetically shielded Verellrkammem 7 and 8 are provided. In particular, they can be parts of a common amplifier chamber, which is subdivided by the metallic wall 6.
  • a lower patch antenna 10 which comprises a lower substrate 11 made of a dielectric, e.g. Ceramics, a formed on the upper side of the lower substrate 11 lower ⁇ / 2 antenna structure 12 and formed on the underside of the lower substrate 11 lower full-surface metallization 13 has.
  • the lower ⁇ / 2 antenna structure 12 is contacted via a through hole 14 extending through the lower substrate 11 to a first low noise amplifier (LNA) 16 received in the left amplifier chamber 7 and attached to the underside of the upper circuit board 4.
  • LNA low noise amplifier
  • the via 14 may in this case be contacted with the amplifier 16 directly or advantageously indirectly via a conductor track of the upper printed circuit board 4.
  • the coupling-in point of the via 14 at the lower antenna structure 12 is preferably not covered by the upper antenna structure 22;
  • this Einkoppeltician is not covered by the upper substrate 21, so that this Einkoppeltician can be soldered as Anlöt Vietnamese without it collides with the upper substrate 21 and z. B. is to form a corresponding recess in the upper substrate.
  • an upper patch antenna 20 comprising an upper substrate 21, an upper ⁇ / 2 antenna structure 22 formed on the upper surface of the upper substrate 21, and a full-surface upper formed on the lower surface of the upper substrate 21 Metallization 23 has.
  • the upper ⁇ / 2 antenna structure 22 is contacted via an upper through-hole 24 directly or via the upper printed circuit board 4 with a second low-noise amplifier (LNA) 26 mounted on the underside of the upper printed circuit board 4 and received in the right-hand amplifier chamber 8 Amplified RF signals and passes on a second (right) coaxial tap 28.
  • LNA low-noise amplifier
  • a through hole 19 extending through the lower substrate 11 galvanically connects the lower ⁇ / 2 antenna structure 12 to the lower metallization 13, thus laying them at an equal potential.
  • the plated-through hole 19 advantageously takes place in the center of the lower ⁇ / 2 antenna structure 12, since in this region no significant voltages, but a current maximum of the induced RF currents occurs.
  • Parts of the low-noise amplifiers 7, 8 can also be constructed on the separate printed circuit board 3.
  • the division of the amplifiers 7, 8 may relate only to the DC power supply or even be designed for a whole or several RF amplifier stages. Alternatively, both amplifiers 7, 8 may be accommodated on a separate circuit board. If a DC voltage separation is provided, a simple wire connection 32 between the two circuit boards 3 and 4 may be provided as an electrical connection.
  • the upper patch antenna 20 with the upper ⁇ / 2 antenna structure 22 is smaller than the lower patch antenna 10 with the lower ⁇ / 2 antenna structure 12, whereby good radiation properties of the ⁇ / 2 antennas 10, 20 achieved become.
  • the lower patch antenna 10 can also be provided for terrestrial reception, for example in SDARS.
  • the upper, smaller patch antenna 20 is designed for lower frequency bands and the lower patch antenna 10 for higher frequency bands; by appropriate choice of the dielectric constant ⁇ r , however, the frequency bands can basically be set freely; Accordingly, the upper patch antenna 20 may also be provided for a lower frequency band, in which the upper substrate 21 has a correspondingly higher dielectric constant ⁇ r .
  • the metallization 23 of the upper patch antenna 20 can be omitted so that the upper substrate 21 sees the lower antenna structure 12 arranged below it as a metallization.
  • the antenna module 41 of FIG. 2 is basically constructed in accordance with that of FIG. 1 and correspondingly provided with the same reference numerals.
  • the first (left) amplifier 16 is constructed on the lower circuit board 3.
  • preferably only the RF part of the first amplifier 16 may be constructed on the separate, lower circuit board 3.
  • a e.g. provided by a coaxial line 43 HF connection between the circuit boards 3 and 4 is provided.
  • FIG. 3 shows an antenna module 51 in which on the base plate 2, in addition to the antenna module 1 or 41 shown in FIGS. 1 and 2, there is laterally provided an antenna 53 which is designed as a monopole or is oriented mainly vertically.
  • the antenna 9 can be implemented, for example, as a dual or multi-band radio antenna or AM / FM radio receiving antenna and as a terrestrial DAB antenna (L-band or band III) or as a combination of these antennas.
  • a third amplifier 55 is e.g. provided below the antenna 53 in a separate chamber; the amplifiers 7, 8 and 55 can also share functions.
  • band-stop filter 60 show exemplary embodiments of band-stop filter 60. These filters are designed so that the transmission band of the radio antenna 53 is sufficiently suppressed, so that no interference is caused in the simultaneous operation of radio and digital radio or GPS.
  • a line piece 62 is provided as an inductance, which forms a series connection with a capacitor C according to FIG. 4a and a parallel connection according to FIG. 4c.
  • a line section 64 is provided as a ⁇ / 4 line, which causes an open-circuit short-circuit transformation.
  • the dummy element Z is each provided for the purpose of adaptation and may be a capacitor, a coil or a combination of such elements in a corresponding circuit.
  • the band-lock filters 60 are each connected with their input 66 to the respective antenna base point and with its output 67 to the input of the respective amplifier.

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  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Waveguide Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Details Of Aerials (AREA)
EP05015079.6A 2004-07-20 2005-07-12 Module d'antenne Active EP1619752B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004035064A DE102004035064A1 (de) 2004-07-20 2004-07-20 Antennenmodul

Publications (2)

Publication Number Publication Date
EP1619752A1 true EP1619752A1 (fr) 2006-01-25
EP1619752B1 EP1619752B1 (fr) 2014-04-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05015079.6A Active EP1619752B1 (fr) 2004-07-20 2005-07-12 Module d'antenne

Country Status (3)

Country Link
US (3) US20060220970A1 (fr)
EP (1) EP1619752B1 (fr)
DE (1) DE102004035064A1 (fr)

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US7277056B1 (en) 2006-09-15 2007-10-02 Laird Technologies, Inc. Stacked patch antennas
EP1936736A1 (fr) * 2006-12-18 2008-06-25 Samsung Electronics Co., Ltd Système d'antenne avec une pluralité d'élements rayonnants et de points d'alimentations
US7405700B2 (en) 2005-06-06 2008-07-29 Laird Technologies, Inc. Single-feed multi-frequency multi-polarization antenna
US7489280B2 (en) 2004-07-20 2009-02-10 Receptec Gmbh Antenna module
WO2009065806A1 (fr) * 2007-11-20 2009-05-28 Continental Automotive Gmbh Module antenne multibande en forme d'aileron de requin pour véhicules
US7587183B2 (en) 2006-12-15 2009-09-08 Laird Technologies, Inc. Multi-frequency antenna assemblies with DC switching
WO2009133523A1 (fr) 2008-04-29 2009-11-05 Calearo Antenne S.P.A. Module d'antenne multifonction pour une utilisation avec une multiplicité de signaux radiofréquences
WO2010031459A1 (fr) * 2008-09-22 2010-03-25 Kathrein-Werke Kg Agencement d'antenne multicouche
US7936306B2 (en) 2008-09-23 2011-05-03 Kathrein-Werke Kg Multilayer antenna arrangement
US8111196B2 (en) 2006-09-15 2012-02-07 Laird Technologies, Inc. Stacked patch antennas
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US9716318B2 (en) 2014-10-22 2017-07-25 Laird Technologies, Inc. Patch antenna assemblies
EP3091610B1 (fr) * 2015-05-08 2021-06-23 TE Connectivity Germany GmbH Système d'antenne et module d'antenne à réduction d'interférences entre des motifs rayonnants
US10186775B2 (en) * 2015-08-11 2019-01-22 The United States Of America, As Represented By The Secretary Of The Army Patch antenna element with parasitic feed probe
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US10454174B2 (en) * 2016-05-10 2019-10-22 Novatel Inc. Stacked patch antennas using dielectric substrates with patterned cavities
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JP6775544B2 (ja) * 2018-04-26 2020-10-28 株式会社ヨコオ パッチアンテナ及び車載用アンテナ装置
WO2020000250A1 (fr) * 2018-06-27 2020-01-02 华为技术有限公司 Structure de conditionnement d'antenne
US20220231410A1 (en) * 2018-07-15 2022-07-21 Shenzhen Merrytek Technology Co., Ltd. Anti-Interference Microwave Antenna
CN112751178A (zh) * 2019-10-29 2021-05-04 北京小米移动软件有限公司 天线单元、阵列天线及电子设备
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US7528780B2 (en) 2006-09-15 2009-05-05 Laird Technologies, Inc. Stacked patch antennas
US7277056B1 (en) 2006-09-15 2007-10-02 Laird Technologies, Inc. Stacked patch antennas
US7587183B2 (en) 2006-12-15 2009-09-08 Laird Technologies, Inc. Multi-frequency antenna assemblies with DC switching
EP1936736A1 (fr) * 2006-12-18 2008-06-25 Samsung Electronics Co., Ltd Système d'antenne avec une pluralité d'élements rayonnants et de points d'alimentations
US7928909B2 (en) 2006-12-18 2011-04-19 Samsung Electronics Co., Ltd. Concurrent mode antenna system
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WO2009133523A1 (fr) 2008-04-29 2009-11-05 Calearo Antenne S.P.A. Module d'antenne multifonction pour une utilisation avec une multiplicité de signaux radiofréquences
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KR101540223B1 (ko) * 2008-09-22 2015-07-29 카트라인-베르케 카게 다층 안테나 어레이
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WO2012123125A1 (fr) * 2011-03-15 2012-09-20 Delphi Deutschland Gmbh Antenne de réception multibande pour la réception combinée de signaux satellites et de signaux radiophoniques à émission terrestre
CN103403961A (zh) * 2011-03-15 2013-11-20 德尔福德国公司 用于组合接收卫星信号和在地面发射的无线电信号的多频带接收天线
CN103403961B (zh) * 2011-03-15 2015-04-22 德尔福德国公司 用于组合接收卫星信号和在地面发射的无线电信号的多频带接收天线
US9553365B2 (en) 2011-03-15 2017-01-24 Delphi Deutschland Gmbh Multiband reception antenna for the combined reception of satellite signals and terrestrially emitted radio signals
US9093750B2 (en) 2013-09-12 2015-07-28 Laird Technologies, Inc. Multiband MIMO vehicular antenna assemblies with DSRC capabilities
US9270019B2 (en) 2013-09-12 2016-02-23 Laird Technologies, Inc. Multiband MIMO vehicular antenna assemblies with DSRC capabilities

Also Published As

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US7295167B2 (en) 2007-11-13
EP1619752B1 (fr) 2014-04-02
US20060220970A1 (en) 2006-10-05
US7489280B2 (en) 2009-02-10
US20070210967A1 (en) 2007-09-13
DE102004035064A1 (de) 2006-02-16
US20060273969A1 (en) 2006-12-07

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