WO2009068339A1 - Élément rayonnant et système d'antenne radar - Google Patents

Élément rayonnant et système d'antenne radar Download PDF

Info

Publication number
WO2009068339A1
WO2009068339A1 PCT/EP2008/062983 EP2008062983W WO2009068339A1 WO 2009068339 A1 WO2009068339 A1 WO 2009068339A1 EP 2008062983 W EP2008062983 W EP 2008062983W WO 2009068339 A1 WO2009068339 A1 WO 2009068339A1
Authority
WO
WIPO (PCT)
Prior art keywords
plastic body
tabs
radar antenna
radiator
antenna arrangement
Prior art date
Application number
PCT/EP2008/062983
Other languages
German (de)
English (en)
Inventor
Ewald Schmidt
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2009068339A1 publication Critical patent/WO2009068339A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/24—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave constituted by a dielectric or ferromagnetic rod or pipe
    • 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

Definitions

  • the present invention relates to a stalk radiator and a radar antenna arrangement.
  • Radar antenna arrangements are used for directional transmission and / or reception of high-frequency signals. Areas of application arise among others in the area of driver assistance systems, which monitor distance and direction to vehicles ahead. The necessary angular resolution is achieved by interconnecting a plurality of antennas, which essentially evaluate time differences and associated phase differences or send them synchronously with a predetermined phase difference.
  • the angle-dependent radiation characteristic of the individual antennas can additionally be changed by stalk radiators, also referred to as polyrod.
  • stalk radiators also referred to as polyrod.
  • this requires an alignment of the stalk radiators relative to the antennas with an accuracy of less than one millimeter, corresponding to the order of the wavelengths of the millimeter waves.
  • the mechanical loads on the stalk radiators due to vibrations of a moving vehicle therefore place high demands on the suspension of the stalk radiators.
  • a stub radiator for a radar antenna assembly comprising: a metallic support having two opposed vertical tabs on a pedestal, and an upwardly tapered plastic body having its bottom surface resting on the pedestal between the two tabs , wherein at least one side surfaces adjacent to the La see.
  • Fig. 1 shows an embodiment of a first Stiehlstrahlers
  • FIG. 3 is a perspective view of the first Stiehlstrahlers.
  • Fig. 4a, 4b sectional figures of the first Stiehlstrahlers
  • FIG. 5 shows an embodiment of a second stub radiator
  • FIG. 7 shows a first embodiment of a radar antenna arrangement
  • FIG 9 shows a third embodiment of a radar antenna arrangement.
  • a Stiehlstrahler 1 is shown in a perspective view in Figure 1.
  • the Stiehlstrahler 1 has a plastic body 2 and a holder 3, 4.
  • the plastic body 2 has a trapezoidal basic shape.
  • the materials used for the plastic body 2 include polyetherimides and other plastics having a low absorption coefficient for high frequency radiation in the range of 50 GHz to 200 GHz and a suitable dielectric constant.
  • the plastic body is preferably produced by injection molding.
  • Figures 2a and 2b show a side view and a front view of the plastic body 2.
  • the first vertically extending sectional plane DD through the center of the plastic body 2 is in Figure 2d and rotated by 90 ° second vertically extending sectional plane CC through the center of the plastic body 2 shown in Figure 2c.
  • a horizontal section E-E in the region of the bottom surface 9 of the plastic body 2 is shown in FIG. 2e.
  • Two further horizontal sections F-F and G-G are above the bottom surface 9.
  • the individual sectional views are to scale to each other, however, the shape shown in their dimensions and proportions is not limited to this embodiment.
  • the side surfaces 11 of the plastic body 2 are substantially trapezoidal and taper upwards.
  • the perpendicular to the side surfaces 11 extending front and back 12 are rectangular in the lower region 13 and may have a tapered trapezoidal shape in the upper region 14.
  • a groove 15 extending in the vertical direction is introduced into the plastic body 2 from the side surfaces 11.
  • the width 16 of the groove 15 is less than the width of the side surfaces eleventh
  • the depth 17 of the groove 15 has a step (see Fig. 2d).
  • the width 16 of the groove 15 remains substantially constant over the entire length of the groove 15.
  • the groove 15 may have one or two stages or it tapers continuously.
  • the plastic body 2 has a funnel-shaped web 18 in the middle of the lower region 13 due to the groove 15.
  • the web 18 focuses the high-frequency radiation on its thin tip 19.
  • the dimension of the tip 19 preferably corresponds to the dimensions of antennas to be coupled. In this way, an optimal coupling of the signals between the antenna and the Stiehlstrahler can be achieved.
  • a nose 8 or a knob 8 is disposed on the side surface 11.
  • the holder comprises a base 3 and two tabs 4 (Figure 3).
  • the two tabs 4 are aligned parallel to each other on the base 3.
  • a distance between the tabs 4 corresponds to the width of the plastic body 2 in the region of the bottom surface 9.
  • through holes 6 are provided.
  • recesses may also be provided on the inner sides of the tabs.
  • the base 3 may have on its underside pins 7 for locking the socket to a housing.
  • the holder can be produced as a one-piece component, inter alia, by a die-casting method.
  • a circuit board 5 preferably a flexible high-frequency suitable printed circuit board, arranged with an antenna element.
  • the antenna element is located centrally on the base 3.
  • the plastic body 2 is arranged between the tabs 4 with its bottom surface 9 on the circuit board 5.
  • the tip 19 of the plastic body 2 is located on or above the antenna element.
  • the lateral lugs 8 engage in the holes 6 in the tabs 4 a.
  • the pins 10 of the plastic body 2 are inserted into corresponding holes in the base 3 (Fig. 4a).
  • the upper region 14 of the plastic body 2 projects beyond the lugs 4 arranged laterally to the plastic body 2.
  • the lugs 4 are preferably wider than the side surfaces 11 of the plastic body 2.
  • the high-frequency radiation is shielded to the side by the metal-containing or metallic lugs 4.
  • a cavity 20 Between the web 18 and the tabs 4 is a cavity 20, which ensures that the high frequency radiation is bundled by the web 18 (Fig. 4b).
  • FIGS. 5 and 6 A second embodiment is shown in FIGS. 5 and 6.
  • the structure of the stave radiator 30 differs from the first embodiment essentially by the different locking of the plastic body 31.
  • a metallic holder has two tabs 32 arranged parallel to one another on a base 33. In the tabs 32 recesses 36 are provided.
  • a circuit board 35 is placed with an antenna element.
  • a pin-shaped plastic body 31 with a base 34 is positioned on the antenna element.
  • the arrangement of the position pins and holes in the plastic body 31 and base 33 can be exchanged.
  • pins 38 are provided so that the clamping device 37 in the upper region of the tabs 32 can be mounted parallel to the base 33. Centered in the clamping device 37, a bore is provided, through which the pin-shaped plastic body 31 can be inserted. The bore is preferably form-fitting with the plastic body 31.
  • a radar antenna arrangement for a combined local and remote operation is shown in Fig. 7 in cross section.
  • Several antennas 41 are arranged in a row.
  • the antennas 41 are used in stalk radiators 1 according to one of the preceding embodiments.
  • the Stiehlstrahler 1 are oriented so that the tabs 4 are parallel to each other.
  • the metallic tabs 4 shield the individual high-frequency signals of the different antennas 41 from each other.
  • a radar antenna arrangement for a near range is shown in FIG. If only one Stiehlstrahler is used, in the holder and the low-frequency electronics can be integrated.
  • FIG. 1 A radar antenna arrangement for a long range is shown in FIG. 1

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

L'invention concerne un élément rayonnant pour un système d'antenne radar. Un support métallique présente deux pattes verticales opposées (4 ; 32) sur un socle (3 ; 33). Un corps en matière plastique (2 ; 31), se rétrécissant vers le haut, repose par sa face de fond sur le socle (3 ; 33), et au moins une de ses faces latérales (11) est limitrophe des pattes (4 ; 32).
PCT/EP2008/062983 2007-11-28 2008-09-29 Élément rayonnant et système d'antenne radar WO2009068339A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710057143 DE102007057143A1 (de) 2007-11-28 2007-11-28 Stiehlstrahler und Radar-Antennenanordnung
DE102007057143.9 2007-11-28

Publications (1)

Publication Number Publication Date
WO2009068339A1 true WO2009068339A1 (fr) 2009-06-04

Family

ID=39938272

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/062983 WO2009068339A1 (fr) 2007-11-28 2008-09-29 Élément rayonnant et système d'antenne radar

Country Status (2)

Country Link
DE (1) DE102007057143A1 (fr)
WO (1) WO2009068339A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111786689A (zh) * 2020-09-07 2020-10-16 深圳市中凯业科技有限公司 一种无人驾驶汽车用多频段5g通信信号接收设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2397075A1 (fr) * 1977-07-06 1979-02-02 Helary Robert Antenne de toit, notamment pour vehicule automobile ayant au moins deux inclinaisons predeterminees
DE19939832A1 (de) * 1999-08-21 2001-02-22 Bosch Gmbh Robert Mehrstrahliger Radarsensor mit einer Halterung für ein Polyrod
DE10355796A1 (de) * 2003-11-28 2005-06-09 Robert Bosch Gmbh Integrierte Schaltung zur Abstands- und/oder Geschwindigkeitsmessung von Objekten
US20060071868A1 (en) * 2004-10-01 2006-04-06 Yokowo Co., Ltd Antenna device mounted on vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2397075A1 (fr) * 1977-07-06 1979-02-02 Helary Robert Antenne de toit, notamment pour vehicule automobile ayant au moins deux inclinaisons predeterminees
DE19939832A1 (de) * 1999-08-21 2001-02-22 Bosch Gmbh Robert Mehrstrahliger Radarsensor mit einer Halterung für ein Polyrod
DE10355796A1 (de) * 2003-11-28 2005-06-09 Robert Bosch Gmbh Integrierte Schaltung zur Abstands- und/oder Geschwindigkeitsmessung von Objekten
US20060071868A1 (en) * 2004-10-01 2006-04-06 Yokowo Co., Ltd Antenna device mounted on vehicle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SPENCER D G: "NOVEL MILLIMETER ACC ANTENNA FEED", IEE COLLOQUIUM ON ANTENNAS FOR AUTOMOTIVES, IEE, LONDON, GB, 10 March 2000 (2000-03-10), pages 411 - 419, XP002160302 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111786689A (zh) * 2020-09-07 2020-10-16 深圳市中凯业科技有限公司 一种无人驾驶汽车用多频段5g通信信号接收设备

Also Published As

Publication number Publication date
DE102007057143A1 (de) 2009-06-04

Similar Documents

Publication Publication Date Title
DE102006038528B3 (de) Abstimmbare Antenne planarer Bauart
EP2050165B1 (fr) Dispositif d'antennes, en particulier pour une station de base de radiotélécommunication mobile
DE60110869T2 (de) Dualpolarisiertes Strahlerelement mit hoher Entkopplung zwischen den Polarisationskanälen
DE102006037518B3 (de) Antennenanordnung, insbesondere für eine Mobilfunk-Basisstation
DE102007044895B4 (de) Hornantenne
DE102008056729B3 (de) RFID-Antennen-System
DE102014203185A1 (de) Antennenvorrichtung und Radarvorrichtung
DE10350034A1 (de) Antennenanordnung insbesondere für Radaranwendungen bei Kraftfahrzeugen
DE10316786A1 (de) Reflektor, insbesondere für eine Mobilfunk-Antenne
DE10316788B3 (de) Verbindungseinrichtung zum Anschluss zumindest zweier versetzt zueinander angeordneter Strahlereinrichtungen einer Antennenanordnung
DE102012217113A1 (de) Antennenstruktur einer zirkularpolarisierten Antenne für ein Fahrzeug
WO2002063334A2 (fr) Radar
DE20080128U1 (de) Antennenvorrichtung und Funkkommunikationssystem
EP0354340B1 (fr) Clavier
WO2009068339A1 (fr) Élément rayonnant et système d'antenne radar
EP2093837B1 (fr) Antenne
EP2238647B1 (fr) Antenne à plusieurs couches de construction planaire
WO2002063333A2 (fr) Dispositif pour recevoir et/ou emettre des faisceaux radar
DE69833449T2 (de) Antennenanordnung für eine einzelne frequenz
DE102012000762A1 (de) Antennenabdeckung
DE602005003682T2 (de) Antenneneinheit
DE102019108901A1 (de) Antennenanordnung für Mobilfunksysteme mit zumindest einem dual-polarisierten Kreuzdipol
EP3540852B1 (fr) Antenne multibande pour un dispositif récepteur et/ou émetteur destinée à l'usage mobile, en particulier pour véhicules, constituée d'une carte de circuit imprimé à doublage en cuivre double face
WO2008151451A1 (fr) Antenne large bande comprenant des éléments non alimentés
DE102017201321A1 (de) Zig zag Antenne

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08804846

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 08804846

Country of ref document: EP

Kind code of ref document: A1