WO2002063717A1 - Antenne planaire - Google Patents

Antenne planaire Download PDF

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Publication number
WO2002063717A1
WO2002063717A1 PCT/DE2002/000052 DE0200052W WO02063717A1 WO 2002063717 A1 WO2002063717 A1 WO 2002063717A1 DE 0200052 W DE0200052 W DE 0200052W WO 02063717 A1 WO02063717 A1 WO 02063717A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
planar antenna
antenna according
circuit board
printed circuit
Prior art date
Application number
PCT/DE2002/000052
Other languages
German (de)
English (en)
Inventor
Ewald Schmidt
Heinz Pfitzenmaier
Jürgen Hasch
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 WO2002063717A1 publication Critical patent/WO2002063717A1/fr

Links

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
    • H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means

Definitions

  • the present invention relates to a planar antenna, consisting of an electrically conductive plate which has two angled side sections on opposite edges, which serve as line arms for coupling the antenna to a feed network.
  • planar antenna is described in DE 199 34 671 AI.
  • the two side sections angled from the plate are connected to one another via a web running below the plate.
  • On the web there is a single connection point for contacting the antenna with a feed network located on a printed circuit board.
  • This only connection which in addition to the electrical contacting also serves to fix the antenna on the printed circuit board, only guarantees inadequate mechanical stability of the planar antenna arranged on the substrate.
  • the fixation of the planar antenna on the printed circuit board described in DE 199 34 671 AI is not sufficient.
  • a planar antenna is also known from the Petosa et al.
  • the planar antenna here also consists of one serving as a radiation element From this plate two line arms branch off for coupling the antenna to a feed network located on a printed circuit board. These line arms consist of two coupling pins which are fixed on the one hand to the underside of the conductive plate and on the other hand are connected to conductor tracks of the feed network on the printed circuit board The electrically conductive plate is only supported on the printed circuit board by two pins. This type of mounting of the plate serving as a radiation element is not of high stability.
  • the invention is therefore based on the object of specifying a planar antenna of the type mentioned at the outset which can be fixed on a printed circuit board with high stability. and also produces a very symmetrical directional diagram with largely reduced secondary peaks due to its electrical properties.
  • the electrically conductive plate forming the antenna element of the antenna has two angled side sections at opposite edges, which serve as line arms for coupling the antenna to a feed network, and in that each of the two line arms is provided with its own connection which can be connected to the dining network located on a printed circuit board.
  • the radiation pattern of the antenna is given a very symmetrical shape with small side lobes.
  • a high mechanical stability when fixing the antenna to a printed circuit board is achieved in that both side sections of the conductive plate are each provided with their own connection, which can be electrically and mechanically connected to a feed network located on the printed circuit board.
  • the electrically conductive plate of the antenna is thus fixed at two points, which gives it very high stability. Because the lead arms of the antenna are designed as side sections angled from opposite edges of the conductive plate, the entire antenna can be produced as a sheet metal part which can be brought into the desired shape of the antenna by a bending process.
  • connections on the line arms of the antenna each have means for making electrical contact with the feed network on the printed circuit board and means for have mechanical fixation of the antenna on the circuit board.
  • the means for electrical contacting can, for. B. consist of one or more soldering tags that can be soldered to a conductor track of the feed network.
  • the means for mechanical fixation advantageously consist of one or more pins which can be inserted into openings in the printed circuit board.
  • the symmetry and suppression of the side lobes of the antenna pattern can be improved in that the plate has extensions on the side next to the line arms.
  • one or more extensions of the plate are present on each side next to each line arm, so that overall a symmetrical geometry of the plate is created.
  • the side extensions of the plate also result in a good adjustment for lower frequency ranges.
  • one or more of the extensions are bent out of the plate level in such a way that they act as supports for the antenna in relation to a housing wall covering the antenna. This gives the antenna a further stabilization of its position, which is synonymous with a stable alignment of the antenna pattern.
  • the extensions which are bent out of the plate plane are preferably resilient.
  • the line arms are provided with openings which expose the connections at the lower ends of the line arms.
  • the entire antenna is realized as a sheet metal stamped part.
  • the antenna according to the invention proves to be particularly advantageous when used as a transmitting and / or receiving antenna in a wall radar device with which inclusions can be detected in a wall.
  • the planar antenna in the above-described embodiments proves to be very advantageous in terms of production technology.
  • Figure 1 is a perspective view of a planar
  • FIG. 2 shows a plan view of the planar antenna
  • Figure 3 is a perspective view of a planar
  • FIG 4 shows a longitudinal section through the planar antenna shown in Figure 3, installed in a housing.
  • the planar antenna shown in Figure 1 consists of a conductive plate 1, which forms the radiating element of the antenna.
  • the electrically conductive plate 1 has a rectangular shape in the illustrated embodiment; but it can also be a different - z. B. round, oval or the like - have shape.
  • side sections 2 and 3 are angled away from the conductive plate 1, which serve to couple the antenna to a feed network.
  • the top view of the Antenna in Figure 2 shows both angled side sections 2 and 3. At the ends facing away from the conductive plate 1, the side sections serving as line arms 1 and 2 taper to a connection 4 and 5, respectively.
  • the connections 4 and 5 provided on line arms 2 and 3 serve to contact the line arms 2 and 3 on a feed network , the Z. B. is applied in stripline technology on a circuit board, and as it were for fixing the antenna on this circuit board.
  • FIG. 4 shows a longitudinal section through a planar antenna arranged on a printed circuit board 6.
  • This view clarifies that the line arms 2 and 3 of the conductive plate 1 of the antenna are held at a certain distance above the printed circuit board 6 carrying a feed network 7. So that is between the conductive plate 1 of the antenna and the z. B. executed in planar line technology dining network 7 carrying circuit board 6 a dielectric with very low per itivity, namely air. The dielectric air with very low permittivity enables very broadband operation of the antenna.
  • the antenna can be used both as a transmitter and. can also be used as a receiving antenna. In this double function, transmission signals are coupled out of the feed network 7 via the line arms 2 and 3, or receive signals are fed into the feed network 7. However, the antenna can also be operated in a single function either as a transmitting or receiving antenna.
  • connection 4 and 5 In particular in the perspective representation of the antenna in FIG. 1, the special structure of the connections 4 and 5 becomes clear using the example of the connection 5.
  • connection 4 and 5 each have a solder tab 8 and 9, which can be soldered onto a conductor track of the feed network 7.
  • pins 10 and 11 which are angled vertically downwards and can be inserted into openings 12 and 13 in the printed circuit board 6 and also soldered therein.
  • This type of connection 4 and 5 not only enables electrical contacting of the antenna with the feed network 7, but also very stable mechanical fixing of the antenna on the printed circuit board 6.
  • openings 14 and 15 are provided in the line arms 2 and 3, which provide a view of the connections 4 and 5. This enables good control of the solder joints.
  • the shape of the openings 14 and 15 is preferably round; but it can also be oval or have an angular geometry. Since the currents flow through line arms 2 and 3 primarily at the outer edges, the openings 14 and 15 in line arms 2 and 3 have almost no effect on the field distribution in line arms 2 and 3.
  • the bandwidth of the planar antenna can be optimized in that, as can be seen in FIGS. 1 to 4, the conductive plate 1 has tongue-like extensions 16 to 23 in addition to the line arms 2 and 3.
  • the conductive plate 1 has tongue-like extensions 16 to 23 in addition to the line arms 2 and 3.
  • the two extensions arranged side by side improve the adaptation of the antenna in the direction of lower frequency ranges.
  • the side of the line arms can also 2 and 3 only one extension 16, 17, 18, 19 can be provided. They alone also bring about an adaptation which improves the bandwidth of the antenna. If only narrow-band operation of the antenna is required, all extensions can be omitted.
  • the adaptation of the antenna can be adjusted via the length and width and the distance between the adjacent extensions 16 to 23.
  • one of the extensions 20, 21, 22, 23 is bent out over the plane of the plate 1 at each corner of the plate 1.
  • these bent extensions 20, 21, 22 and 23 have the function of supports for a housing wall 28 covering the antenna.
  • FIG. 4 shows a detail of such a housing wall 28, which covers the antenna like a radome.
  • the antenna As shown in FIG. 2, symmetrically at least with respect to an axis connecting the two line arms 2, 3.
  • The has the advantage that no particular installation direction of the antenna has to be observed.
  • the entire antenna consisting 'of the conductive plate 1, the conduit arms 2 and 3 and the terminals 4 be constructed of a stamped sheet metal part. 5

Landscapes

  • Details Of Aerials (AREA)

Abstract

L'invention vise à mettre au point une antenne planaire apte à être fixée de manière très stable sur une carte de circuits et à produire en outre un diagramme directionnel le plus symétrique possible avec des lobes secondaires dans une large mesure réduits. Ladite antenne comprend une carte électroconductrice (1) présentant sur des bords en opposition mutuelle, deux sections latérales (2, 3) cintrées servant de bras de connexion pour coupler l'antenne à un réseau d'alimentation. Chacun de ces deux bras de connexion (2, 3) comporte sa propre connexion (4, 5) qui peut être reliée au réseau d'alimentation situé sur une carte de circuits.
PCT/DE2002/000052 2001-02-03 2002-01-10 Antenne planaire WO2002063717A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10104863.7 2001-02-03
DE2001104863 DE10104863A1 (de) 2001-02-03 2001-02-03 Planare Antenne

Publications (1)

Publication Number Publication Date
WO2002063717A1 true WO2002063717A1 (fr) 2002-08-15

Family

ID=7672721

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/000052 WO2002063717A1 (fr) 2001-02-03 2002-01-10 Antenne planaire

Country Status (2)

Country Link
DE (1) DE10104863A1 (fr)
WO (1) WO2002063717A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1313165A2 (fr) * 2001-11-15 2003-05-21 Filtronic LK Oy Procédé de fabrication d'une antenne intérieure, et antenne correspondante
WO2004021046A1 (fr) * 2002-08-28 2004-03-11 Robert Bosch Gmbh Detecteur de position et procede de production d'un detecteur de position

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005159944A (ja) * 2003-11-28 2005-06-16 Alps Electric Co Ltd アンテナ装置
DE102005039152A1 (de) 2005-08-17 2007-02-22 Robert Bosch Gmbh Mechanische Trägereinrichtung sowie Messgerät mit einer mechanischen Trägereinrichtung
DE102005052367A1 (de) 2005-10-31 2007-05-03 Robert Bosch Gmbh Messgerät und Verfahren zur Ortung von in einem Medium eingeschlossenen Objekten mittels elektromagnetischer HF-Signale
EP2128649A1 (fr) 2008-05-28 2009-12-02 Leica Geosystems AG Dispositif de mesure au radar doté d'un dispositif d'antenne planaire
EP2151701A1 (fr) 2008-08-06 2010-02-10 Leica Geosystems AG Procédé de mesure radar destiné à la localisation d'un objet intégré dans un milieu de recherche
DE102008055196A1 (de) 2008-12-30 2010-07-08 Robert Bosch Gmbh Vorrichtung zum Senden und/oder Empfangen elektromagnetischer Hochfrequenzsignale
DE102012101443B4 (de) * 2012-02-23 2017-02-09 Turck Holding Gmbh Planare Antennenanordnung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5537123A (en) * 1994-03-10 1996-07-16 Murata Manufacturing Co., Ltd. Antennas and antenna units
EP0730159A2 (fr) * 1995-03-01 1996-09-04 Matsushita Electric Industrial Co., Ltd. Appareil pour mesurer le radiation électromagnétique
US5633646A (en) * 1995-12-11 1997-05-27 Cal Corporation Mini-cap radiating element
WO2001008261A1 (fr) * 1999-07-23 2001-02-01 Robert Bosch Gmbh Antenne plane

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5537123A (en) * 1994-03-10 1996-07-16 Murata Manufacturing Co., Ltd. Antennas and antenna units
EP0730159A2 (fr) * 1995-03-01 1996-09-04 Matsushita Electric Industrial Co., Ltd. Appareil pour mesurer le radiation électromagnétique
US5633646A (en) * 1995-12-11 1997-05-27 Cal Corporation Mini-cap radiating element
WO2001008261A1 (fr) * 1999-07-23 2001-02-01 Robert Bosch Gmbh Antenne plane

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PETOSA A ET AL: "Suppression of unwanted probe radiation in wideband probe-fed microstrip patches", ELECTRONICS LETTERS, IEE STEVENAGE, GB, vol. 35, no. 5, 4 March 1999 (1999-03-04), pages 355 - 357, XP006011855, ISSN: 0013-5194 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1313165A2 (fr) * 2001-11-15 2003-05-21 Filtronic LK Oy Procédé de fabrication d'une antenne intérieure, et antenne correspondante
EP1313165A3 (fr) * 2001-11-15 2004-02-04 Filtronic LK Oy Procédé de fabrication d'une antenne intérieure, et antenne correspondante
US6950068B2 (en) 2001-11-15 2005-09-27 Filtronic Lk Oy Method of manufacturing an internal antenna, and antenna element
WO2004021046A1 (fr) * 2002-08-28 2004-03-11 Robert Bosch Gmbh Detecteur de position et procede de production d'un detecteur de position

Also Published As

Publication number Publication date
DE10104863A1 (de) 2002-08-08

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