EP1769564B1 - Device and method for transmitting/receiving electromagnetic hf signals - Google Patents

Device and method for transmitting/receiving electromagnetic hf signals Download PDF

Info

Publication number
EP1769564B1
EP1769564B1 EP05726517A EP05726517A EP1769564B1 EP 1769564 B1 EP1769564 B1 EP 1769564B1 EP 05726517 A EP05726517 A EP 05726517A EP 05726517 A EP05726517 A EP 05726517A EP 1769564 B1 EP1769564 B1 EP 1769564B1
Authority
EP
European Patent Office
Prior art keywords
antenna
essentially
sections
antenna sections
mounting device
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.)
Not-in-force
Application number
EP05726517A
Other languages
German (de)
French (fr)
Other versions
EP1769564A1 (en
Inventor
Ewald Schmidt
Jürgen Hasch
Michael Mahler
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.)
Robert Bosch GmbH
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 EP1769564A1 publication Critical patent/EP1769564A1/en
Application granted granted Critical
Publication of EP1769564B1 publication Critical patent/EP1769564B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/528—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the re-radiation of a support structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • H01Q21/26—Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre

Definitions

  • the present invention relates to an apparatus and a method for transmitting / receiving electromagnetic RF signals, and more particularly to an RF antenna for a radar which operates in a frequency range between 1 to 5 GHz.
  • a device according to the preamble of claim 1 is known from US 2,894,124 known.
  • a similar arrangement, however, with rectangular instead of triangular antenna sections is off US 3, 741, 510 known.
  • Antennas for devices tuned to detect objects, such as lines in walls, are generally optimized for transmitting and / or receiving radio frequency (RF) radar signals.
  • RF radio frequency
  • a known antenna in planar design is from the DE 101 04 863 A1 known.
  • This known planar antenna can be fixed on a printed circuit board with high mechanical stability and produces a relatively symmetrical directional diagram with largely reduced secondary maxima or side lobes.
  • the known antenna consists of an electrically conductive plate, which has two angled side sections at opposite edges; which serve as line arms for coupling the antenna to a feed network. Each of the two line arms is provided with its own connection, which can be connected to the supply network located on a printed circuit board.
  • a disadvantage of the known antenna arrangement is a rather voluminous design and a parasitic radiation between the angled side sections and the electrically conductive plate. In addition, only one emission direction with the known radar antenna is possible.
  • the inventive device for transmitting / receiving electromagnetic RF signals with the features of claim 1 and the method for transmitting / receiving electromagnetic RF signals with the features of claim 10 has over the known approach the advantage that measurement data in two mutually orthogonal directions can be obtained by means of the antenna in order to detect measured objects better.
  • a smaller size than in the prior art allows.
  • Parasitic emissions according to the cited prior art i. the radiation of unwanted electromagnetic fields are prevented by the configuration according to the invention by means of a shield. Apart from that, a simple assembly is guaranteed; the arrangement being mechanically very stable.
  • the idea underlying the present invention is that diametrically opposed substantially triangular, electrically conductive, funnel-shaped fanning antenna sections, whereby upon appropriate excitation of these antenna sections such electromagnetic fields are formed, which detach, and thus form an antenna.
  • the geometry of the arrangement according to the invention is designed so that a detaching field in both the transverse and in the longitudinal section in the space above the antenna forms without dips or secondary maxima. Adjacent antenna sections are largely decoupled.
  • a device for transmitting / receiving electromagnetic RF signals is provided with: a first substantially triangular, electrically conductive antenna section for transmitting and / or receiving RF signals; at least a second, third and fourth antenna section, which substantially correspond to the first antenna section and form a polygon, wherein in each case a triangular tip is provided approximately in the region of the center of the polygon, in the center of which lies an antenna axis; and a carrier device substantially perpendicular to the antenna axis, wherein each of the triangular tips of the triangular antenna sections, which emanate from the center, at least in sections form a funnel shape on the side facing away from the carrier device, are contacted with RF signal terminals of the carrier device in the region of the center of the polygon and in each case two diametrically opposite antenna sections form an antenna element.
  • the surface of the at least four essentially triangular antenna sections is configured to be flat or convex or concave and / or corrugated or stepped at least in sections, a transition region, which preferably extends at least partially perpendicular to the antenna axis, being provided between the funnel shape and electrically conductive screen walls each extending substantially parallel to the antenna axis and in which the four substantially triangular sections each pass on a side opposite the triangular point.
  • each of the triangular tips of the essentially triangular antenna sections which preferably taper into a rectangular web, have a predetermined curvature in the direction of the carrier device, in particular a multilayer printed circuit board, and terminate thereon substantially perpendicularly to the electrically isolated one. on isolated RF signal terminals.
  • two exposed edges of the at least four essentially triangular antenna sections are provided with angular and / or round recesses for adapting antenna characteristics.
  • the advantage here is the individual tuning option for optimizing the transmission / reception properties.
  • exactly four essentially triangular antenna sections form a square or a rectangle as a polygon, wherein the RF signal terminals of the two adjacent, diametrically opposite antenna sections can be acted upon by two RF signal bands, preferably different, possibly partially overlapping frequency ranges.
  • the emission and reception frequencies can be tuned to the shape of the antenna device and vice versa, whereby the signals can be easily distinguished due to different frequency spectra.
  • exactly four substantially triangular antenna sections form a square or a rectangle as a polygon, wherein the RF signal terminals of the two adjacent respectively diametrically opposite antenna sections can be acted upon alternately with an RF signal.
  • an operation with two different polarization planes is possible, which are preferably offset by about 90 ° to each other, wherein an RF source via a switch, the two RF signal terminal pairs drives differentially.
  • the screen walls are contacted with an electrically conductive shielding device of the carrier device, which is preferably provided on or in the carrier device, and preferably both, in particular over a large area, are connected to a reference potential.
  • an electrically conductive shielding device of the carrier device which is preferably provided on or in the carrier device, and preferably both, in particular over a large area, are connected to a reference potential.
  • a radome is provided approximately parallel to the carrier device as a cover over the at least four substantially triangular antenna sections, wherein the antenna device is preferably movably mounted on axles provided with wheels. A protection of the transmitting / receiving device is thus ensured and the device is preferably provided via rigidly connected by means of axes wheels slidably.
  • the at least four essentially triangular antenna sections consist of separate metal sheets, which are preferably mechanically and / or electrically connected to one another in the region of screen walls are connected, or from a one-piece metal die casting or a plastic die-cast part, which is at least partially provided with a conductive metallization. Cost-effective production variants are thus advantageously provided.
  • the triangular tips of the at least four essentially triangular antenna sections are electrically connected to the RF signal terminals of the carrier device via solder contacts or conductive adhesive contacts. This advantageously results in a cost-effective and easy installation.
  • Fig. 1 For example, an antenna basic form is shown on a carrier device 15, for example a printed circuit board, without a cover.
  • a carrier device for example a printed circuit board
  • four essentially identical, electrically conductive, substantially triangular antenna sections 10 are arranged in such a way that they form a square in plan view with triangular points 12 lying in the region of the midpoint 11 of the square.
  • the essentially triangular antenna sections 10 merge on the outer sides of the square in electrically conductive screen walls 13 extending substantially perpendicular to the carrier device 15.
  • the four antenna sections 10 and the respective screen walls 13 are integrally made, for example of die-cast aluminum.
  • triangular tips 12 are in relation to the upper edges of the screen walls 13 downwardly displaced in the direction of the support means 15, so that a funnel or conical shape results.
  • the triangular tips 12 are connected to RF signal terminals (in Fig. 1 not shown) of the carrier device 15 contacted.
  • Fig. 2 is one with Fig. 1 comparable configuration in cross-section, however, shown with a cover 17 in the form of a radome made of an electrically non-conductive material.
  • the covering device 17 in this case runs essentially parallel to the carrier device 15.
  • a transition section 18 is provided, which runs essentially parallel to the carrier device 15 and in particular touches the covering device 17.
  • the load is transmitted over a large area to the carrier device 15 via the screen wall 13 on the entire circumference.
  • Internal RF signal terminals 15 ' which is electrically connected to the triangular tips 12 of the substantially triangular antenna sections 10 in plan view, are insulated from each other.
  • the substantially triangular antenna sections 10 preferably pass in the triangular tips 12 into rectangular webs (in FIG Fig. 1 and 2 not visible) via which have a predetermined radius of curvature.
  • the radius of curvature between the cross-section according to Fig. 2 obliquely extending antenna portions 10 and the opening in the region of the support means perpendicular to the support means 15 triangular tips 12 is designed such that radar waves can easily peel off.
  • the carrier device 15 is preferably a multi-layer printed circuit board which has a continuous shielding plane (in Fig. 2 not shown), wherein the shielding plane is preferably electrically connected to the screen walls 13.
  • Fig. 3 is merely an antenna element consisting of the substantially triangular antenna sections 10 and the screen walls 13 together with transition section 18 shown.
  • an electromagnetic alternating field is shown, which is fed by differential, ie with substantially 180 ° to each other shifted RF signals.
  • the electromagnetic waves preferably propagate in the Radar range with a frequency between 2 and 5 GHz.
  • the antenna consists of a cuboid housing with four internal RF signal terminals 15 'according to Fig. 1 and 2 ,
  • two diametrically opposite RF signal terminals 15 'are according to Fig. 3 differentially excited by about 180 ° to each other phase shifted RF signals.
  • the opposite terminals are geometrically close to each other and have the antenna axis 14 preferably a parallel direction, but at least an acute angle.
  • the triangular tip 12 merges into a substantially triangular antenna section 10.
  • the triangular tip has a rounded curvature, which preferably merges into a planar antenna section 10.
  • An upper portion of the antenna portion 10 becomes a tangential line when radii of the same center point coincide between the oblique antenna portion 10 and the vertical screen wall 13.
  • the screen wall 13 is at its lower end in the region of the support means 15 areally or at least partially connected to a system ground, preferably a reference potential, as well as an integrated in the support means 15 planar shield of electrically conductive material. This electromagnetic fields, which form below the antenna sections 10, shielded to the outside.
  • the geometry is designed in such a way that a detaching field is formed in the transverse and in the longitudinal section above the transmitting / receiving device without dips.
  • the directly adjacent antenna sections are largely decoupled.
  • the transmitting / receiving device 4 has planes of symmetry, a horizontal plane, a vertical plane and planes lying at an angle of 45 ° in plan view of the configuration according to FIG Fig. 1 considered.
  • Antenna sections 10 along the longitudinal side are preferably operated at a lower frequency of, for example, 2 to 3 GHz and along the transverse side, ie in the orthogonal direction thereto, for example from 2.5 to 4 GHz. This results in only two planes of symmetry.
  • partial recesses can be introduced into the screen walls 13, provided that they are not too large and positioned such that there are no maximas in the shielded space between carrier device 15 and antenna sections 10 and screen walls 13 exhibit. Then such recesses have no negative impact on the top outward peeling electromagnetic waves.
  • the four RF signal terminals 15 'advantageously protrude into correspondingly insulated through-holes of the carrier device 15 or printed circuit board and are contacted there electrically with the triangular tips 12.
  • a preferably provided, the funnel shape remote metal layer in / out of the support means 15 is preferably contacted over the entire surface with a system ground or a reference potential and the bottom of the screen walls 13.
  • combinations of the aforementioned options are being considered.
  • a maximum horizontal and / or vertical installation geometry of the transceiver can be taken into account and adjusted within certain limits.
  • the stretched length and upper width of the Essentially triangular antenna sections 10 the possible transmission / reception area.
  • antenna characteristics can be modified and, in particular, the emission characteristic can be adapted.
  • the recesses 16 according to 4 and FIG. 5 in bottom view, which are located at the two exposed edges of the antenna portion 10 in the upper and middle region, the lower cutoff frequency can be reduced and partial improvements of the antenna matching can be achieved.
  • other configurations of the recesses for example, round, sawtooth, corrugated, by means of which similar effects can be achieved with a suitable design.
  • the antenna devices shown are preferably made of die-cast aluminum and have formations 20 with mounting holes, by means of which the transmitting / receiving device on the support means 15 is mechanically and / or electrically connected.
  • the axles 19 are used for the rigid connection of external wheels (not shown), with the help of which the transmitting / receiving device can be moved in parallel over surfaces.
  • these axes 19 preferably extend within the outer dimensions of the transceiver with their antenna sections 10 and are made of a non-conductive material.
  • the openings for the passage of the axes 19 lie at predetermined calculated positions at which no field maximum of the electromagnetic waves in the space formed by the antenna sections 10 occurs.
  • the RF signal supply or dissipation or distribution required for operating the transceiver device is advantageously carried out on or within the carrier device 15, preferably a multi-layer printed circuit board.
  • leads on the shielding layer facing the antenna side are electrically insulated therefrom, they are preferably realized by grounded coplanar technology.
  • a die-cast part made of metal preferably die-cast aluminum
  • the transmitting / receiving antenna on the carrier device 15 or a conductor or ground potential plate on the mitgegossenen or sprayed mounting holes 20 according to 4 and 5 is screwed on.
  • the antennas can be mounted in any direction.
  • the diametrically opposed antenna sections 10 which can be driven independently of one another by the RF signal connections 15 'can thus receive two orthogonal polarizations.
  • a substantially triangular antenna section 10 is shown as a single sheet 10 '.
  • the single sheet 10 ' is preferably a stamped part made of a metal, such as tinplate, and in addition to the triangular tip 12 and the screen wall 13, the recesses 16 and a latching and / or hooking 22 and a Verrast- and / or Einitatiö réelle 23.
  • the single sheet 10 'on a support means 15 mechanically and / or electrically connected By mechanical and / or electrical connection elements 21, the single sheet 10 'on a support means 15 mechanically and / or electrically connected.
  • Fig. 7 is the single sheet 10 'according to Fig. 6 shown after a deforming processing.
  • the screen wall 13 has an angle smaller than 90 ° with respect to the substantially triangular antenna portion 10, and the triangular tip 12 shows a predetermined curvature. In the region of the latching and / or hooking element 22, the screen wall 13 is bent over.
  • Fig. 9 In the oblique top view according to Fig. 9 are four antenna elements according to Fig. 7 in one with Fig. 1 comparable configuration mounted on a support means 15.
  • This unit can then be soldered, for example, in a support plate 15, preferably a printed circuit board become.
  • the individual sheets 10 ' can be soldered or glued to the edges and latching and / or hooking elements or openings 22, 23 either before or after assembly on the carrier device 15.
  • a stable transceiver becomes comparable to that with reference to FIG Fig. 1 provided described.
  • Fig. 10 is the arrangement according to Fig. 9 shown in bottom view without support means.
  • Fig. 11 describes a configuration in which the individual sheets 10 'do not touch each other directly after mounting on the support means 15. Each single sheet 10 'is soldered for in the carrier device. Only with the installation of all four individual sheets 10 'forms the transmitting / receiving device.
  • Fig. 11 Slots or recesses 25 are provided.
  • slots or recesses for reducing eddy current influences can also be used in all other embodiments of the present invention and are preferably provided along the mirror axis of the antenna sections 10.
  • recesses are shown in the screen walls 13, wherein in the transverse direction two axles 19 according to 4 and 5 are introduced.
  • Fig. 8 four individual sheets 10 'according to Fig. 7 , ie already bent, clipped into a suitable plastic holder or injected directly as inserts.
  • the sheets do not touch each other even after installation on a support means 15 (not shown).
  • the plastic holder 24 is particularly advantageous if it also serves as a function carrier or holder for other elements, such as low-frequency coil carrier to the transmitting / receiving device.
  • the costs are very low. At low quantities, the sheet metal parts can be cut out by laser.

Landscapes

  • Details Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

The invention relates to a device for transmitting/receiving electromagnetic HF signals. Said device comprises a first substantially triangular, electrically conducting antenna section (10) for transmitting and/or receiving HF signals; at least one second, third and fourth antenna section (10) which substantially correspond to the first antenna section (10) and form a polygon, with one point (12) of the triangle each being positioned approximately in the are of the center (11) of the polygon and an antenna axis (14) intersecting the center; and a support device (15) arranged substantially perpendicular to the antenna axis (14), the points (12) of the triangle of the triangular antenna sections (10) - which starting from the center (11) at least partially form a funnel-shaped structure on the side facing away from the support device (15) - are contacted with HF signal ports (15') of the support device (15) in the area of the center (11) of the polygon, and two diametrically opposite antenna sections (10) each forming an antenna element. The invention also relates to a method for transmitting/receiving electromagnetic HF signals.

Description

STAND DER TECHNIKSTATE OF THE ART

Die vorliegenden Erfindung betrifft eine Vorrichtung und ein Verfahren zum Senden/Empfangen elektromagnetischer HF-Signale, und insbesondere eine HF-Antenne für eine Radareinrichtung, welche in einem Frequenzbereich zwischen 1 bis 5 GHz betrieben wird.The present invention relates to an apparatus and a method for transmitting / receiving electromagnetic RF signals, and more particularly to an RF antenna for a radar which operates in a frequency range between 1 to 5 GHz.

Eine Vorrichtung gemäß dem Oberbegriff des Anspruchs 1 ist aus der US 2,894,124 bekannte. Eine ähnliche Anordnung allerdings mit rechteckigen statt mit dreiecksförmigen Antennenabschnitten ist aus US 3, 741, 510 bekannt.A device according to the preamble of claim 1 is known from US 2,894,124 known. A similar arrangement, however, with rectangular instead of triangular antenna sections is off US 3, 741, 510 known.

Antennen für Einrichtungen, welche zur Detektion von Objekten, wie beispiels-weise Leitungen in Wänden, abgestimmt sind, sind im Allgemeinen auf das Sen-den und/oder Empfangen hochfrequenter (HF-)Radarsignale optimiert. Eine bekannte Antenne in planarer Ausführung ist aus der DE 101 04 863 A1 bekannt.Antennas for devices tuned to detect objects, such as lines in walls, are generally optimized for transmitting and / or receiving radio frequency (RF) radar signals. A known antenna in planar design is from the DE 101 04 863 A1 known.

Diese bekannte planare Antenne ist mit hoher mechanischer Stabilität auf einer Leiterplatte fixierbar und erzeugt ein relativ symmetrisches Richtdiagramm mit weitgehend reduzierten Nebenmaxima bzw. Nebenkeulen. Die bekannte Antenne besteht aus einer elektrisch leitenden Platte, welche an einander gegenüberliegenden Rändern zwei abgewinkelte Seitenabschnitte aufweist; die als Leitungsarme zur Ankopplung der Antenne an ein Speisenetzwerk dienen. Dabei ist jeder der beiden Leitungsarme mit einem eigenen Anschluss versehen, welcher mit dem auf einer Leiterplatte befindlichen Speisenetzwerk verbindbar ist. Von Nachteil bei der bekannten Antennenanordnung ist eine recht voluminöse Bauform sowie eine parasitäre Abstrahlung zwischen den angewinkelten Seitenabschnitten und der elektrisch leitenden Platte. Darüber hinaus ist lediglich eine Abstrahlrichtung mit der bekannten Radarantenne möglich.This known planar antenna can be fixed on a printed circuit board with high mechanical stability and produces a relatively symmetrical directional diagram with largely reduced secondary maxima or side lobes. The known antenna consists of an electrically conductive plate, which has two angled side sections at opposite edges; which serve as line arms for coupling the antenna to a feed network. Each of the two line arms is provided with its own connection, which can be connected to the supply network located on a printed circuit board. A disadvantage of the known antenna arrangement is a rather voluminous design and a parasitic radiation between the angled side sections and the electrically conductive plate. In addition, only one emission direction with the known radar antenna is possible.

VORTEILE DER ERFINDUNGADVANTAGES OF THE INVENTION

Die erfindungsgemäße Vorrichtung zum Senden/Empfangen elektromagnetischer HF-Signale mit den Merkmalen des Anspruchs 1 sowie das Verfahren zum Senden/Empfangen elektromagnetischer HF-Signale mit den Merkmalen des Anspruchs 10 weist gegenüber dem bekannten Lösungsansatz den Vorteil auf, dass Messdaten in zwei zueinander orthogonalen Richtungen mittels der Antenne gewonnen werden können, um Messobjekte besser detektieren zu können. Außerdem wird trotz der ermöglichten dualen Abstrahlung/Empfang eine kleinere Bauform als im Stand der Technik ermöglicht. Parasitäre Abstrahlungen entsprechend dem angeführten Stand der Technik, d.h. die Abstrahlung unerwünschter elektromagnetischer Felder werden durch die erfindungsgemäße Konfiguration mittels einer Schirmung unterbunden. Abgesehen davon ist eine einfache Montage gewährleistet; wobei die Anordnung mechanisch sehr stabil ist.The inventive device for transmitting / receiving electromagnetic RF signals with the features of claim 1 and the method for transmitting / receiving electromagnetic RF signals with the features of claim 10 has over the known approach the advantage that measurement data in two mutually orthogonal directions can be obtained by means of the antenna in order to detect measured objects better. In addition, despite the enabled dual radiation / reception, a smaller size than in the prior art allows. Parasitic emissions according to the cited prior art, i. the radiation of unwanted electromagnetic fields are prevented by the configuration according to the invention by means of a shield. Apart from that, a simple assembly is guaranteed; the arrangement being mechanically very stable.

Die der vorliegenden Erfindung zugrunde liegende Idee besteht im Wesentlichen darin, dass sich im Wesentlichen dreieckförmige, elektrisch leitfähige, trichterförmig auffächernde Antennenabschnitte diametral gegenüberliegen, wodurch bei entsprechender Anregung dieser Antennenabschnitte solche elektromagnetische Felder ausgebildet werden, weiche sich ablösen, und somit eine Antenne bilden. Die Geometrie der erfindungsgemäßen Anordnung ist dabei so gestaltet, dass ein sich ablösendes Feld sowohl im Quer- als auch im Längsschnitt im Raum oberhalb der Antenne ohne Einbrüche bzw. Nebenmaxima ausbildet. Benachbarte Antennenabschnitte sind dabei weitgehend entkoppelt.Essentially, the idea underlying the present invention is that diametrically opposed substantially triangular, electrically conductive, funnel-shaped fanning antenna sections, whereby upon appropriate excitation of these antenna sections such electromagnetic fields are formed, which detach, and thus form an antenna. The geometry of the arrangement according to the invention is designed so that a detaching field in both the transverse and in the longitudinal section in the space above the antenna forms without dips or secondary maxima. Adjacent antenna sections are largely decoupled.

Mit anderen Worten wird eine Vorrichtung zum Senden/Empfangen elektromagnetischer HF-Signale bereitgestellt mit: einem ersten im Wesentlichen dreieckförmigen, elektrisch leitfähigen Antennenabschnitt zum Senden und/oder Empfangen von HF-Signalen; mindestens einem zweiten, dritten und vierten Antennenabschnitt, welche dem ersten Antennenabschnitt im Wesentlichen entsprechen und ein Polygon bilden, wobei jeweils eine Dreiecksspitze in etwa im Bereich des Mittelpunktes des Polygons vorgesehen ist, in dessen Zentrum eine Antennenachse liegt; und einer Trägereinrichtung im Wesentlichen senkrecht zur Antennenachse, wobei jeweils die Dreiecksspitzen der dreieckförmigen Antennenabschnitte, weiche von dem Mittelpunkt ausgehen, zumindest abschnittsweise eine Trichterform auf der der Trägereinrichtung abgewandten Seite bilden, mit HF-Signalanschlüssen der Trägereinrichtung im Bereich des Mittelpunkts des Polygons kontaktiert sind und jeweils zwei diametral gegenüberliegende Antennenabschnitte ein Antennenelement bilden.In other words, a device for transmitting / receiving electromagnetic RF signals is provided with: a first substantially triangular, electrically conductive antenna section for transmitting and / or receiving RF signals; at least a second, third and fourth antenna section, which substantially correspond to the first antenna section and form a polygon, wherein in each case a triangular tip is provided approximately in the region of the center of the polygon, in the center of which lies an antenna axis; and a carrier device substantially perpendicular to the antenna axis, wherein each of the triangular tips of the triangular antenna sections, which emanate from the center, at least in sections form a funnel shape on the side facing away from the carrier device, are contacted with RF signal terminals of the carrier device in the region of the center of the polygon and in each case two diametrically opposite antenna sections form an antenna element.

Erfindungsgemäß ist die Oberfläche der mindestens vier im Wesentlichen dreieckförmigen Antennenabschnitte zumindest abschnittsweise eben oder konvex oder konkav und/oder gewellt oder getreppt ausgeführt, wobei ein Übergangsbereich, welcher vorzugsweise zumindest abschnittsweise senkrecht zur Antennenachse verläuft, zwischen der Trichterform und elektrisch leitfähigen Schirmwänden vorgesehen ist, welche jeweils im Wesentlichen parallel zur Antennenachse verlaufen und in welche die vier im Wesentlichen dreieckförmigen Abschnitte jeweils auf einer der Dreiecksspitze gegenüberliegenden Seite übergehen. Dies birgt den Vorteil der. Reduktion von parasitären Abstrahlungen bzw. dem Empfang parasitärer Signale, wodurch die Antennencharakteristik sich weiter steigert.According to the invention, the surface of the at least four essentially triangular antenna sections is configured to be flat or convex or concave and / or corrugated or stepped at least in sections, a transition region, which preferably extends at least partially perpendicular to the antenna axis, being provided between the funnel shape and electrically conductive screen walls each extending substantially parallel to the antenna axis and in which the four substantially triangular sections each pass on a side opposite the triangular point. This has the advantage of. Reduction of parasitic emissions or the reception of parasitic signals, whereby the antenna characteristic further increases.

In den Unteransprüchen finden sich vorteilhafte Weiterbildungen und Ausgestaltungen der in Anspruch 1 angegebenen Vorrichtung zum Senden/Empfangen elektromagnetischer HF-Signale.In the dependent claims are advantageous developments and refinements of the device specified in claim 1 for transmitting / receiving electromagnetic RF signals.

Gemäß einer bevorzugten Weiterbildung weisen jeweils die Dreiecksspitze der im Wesentlichen dreieckförmigen Antennenabschnitte, welche sich vorzugsweise in einen rechteckförmigen Steg verjüngen, eine vorbestimmte Krümmung in Richtung zu der Trägereinrichtung, insbesondere einer mehrschichtigen Leiterplatte, auf und münden an dieser im Wesentlichen senkrecht an den elektrisch vonein-ander isolierten HF-Signalanschlüssen. Diese Merkmale dienen einer weiteren Verbesserung der Abstrahlcharakteristik der erfindungsgemäßen Antennenvorrichtung.According to a preferred development, each of the triangular tips of the essentially triangular antenna sections, which preferably taper into a rectangular web, have a predetermined curvature in the direction of the carrier device, in particular a multilayer printed circuit board, and terminate thereon substantially perpendicularly to the electrically isolated one. on isolated RF signal terminals. These features serve to further improve the radiation characteristic of the antenna device according to the invention.

Gemäß einer weiteren bevorzugten Weiterbildung sind jeweils zwei freiliegende Kanten der zumindest vier im Wesentlichen dreieckförmigen Antennenabschnitte mit eckigen und/oder runden Ausnehmungen zum Anpassen von Antennencharakteristika versehen. Von Vorteil ist dabei die individuelle Abstimmmöglichkeit zur Optimierung der Sende/Empfangseigenschaften.According to a further preferred development, two exposed edges of the at least four essentially triangular antenna sections are provided with angular and / or round recesses for adapting antenna characteristics. The advantage here is the individual tuning option for optimizing the transmission / reception properties.

Gemäß einer weiteren bevorzugten Weiterbildung bilden genau vier im Wesentlichen dreieckförmige Antennenabschnitte ein Quadrat oder ein Rechteck als Polygon, wobei die HF-Signalanschlüsse der zwei benachbarten, jeweils diametral gegenüberliegenden Antennenabschnitte mit zwei HF-Signalbändern, vorzugsweise unterschiedlicher, gegebenenfalls teilweise überlappender Frequenzbereiche, beaufschlagbar sind. Damit lassen sich die Abstrahl- bzw. Empfangsfrequenzen auf die Form der Antennenvorrichtung abstimmen und umgekehrt, wobei sich die Signale aufgrund unterschiedlicher Frequenzspektren leicht unterscheiden lassen.According to a further preferred refinement, exactly four essentially triangular antenna sections form a square or a rectangle as a polygon, wherein the RF signal terminals of the two adjacent, diametrically opposite antenna sections can be acted upon by two RF signal bands, preferably different, possibly partially overlapping frequency ranges. Thus, the emission and reception frequencies can be tuned to the shape of the antenna device and vice versa, whereby the signals can be easily distinguished due to different frequency spectra.

Gemäß einer weiteren bevorzugten Weiterbildung bilden genau vier im Wesentlichen dreiecksförmige Antennenabschnitte ein Quadrat oder ein Rechteck als Polygon, wobei die HF-Signalanschlüsse der zwei benachbarten jeweils diametral gegenüberliegenden Antennenabschnitte alternierend mit einem HF-Signal beaufschlagbar sind. Durch diese vorteilhafte Ausgestaltung ist ein Betrieb mit zwei unterschiedlichen Polarisationsebenen möglich, welche vorzugsweise etwa 90° zueinander versetzt liegen, wobei eine HF-Quelle über einen Umschalter die zwei HF-Signalanschlusspaare differentiell ansteuert.According to a further preferred development, exactly four substantially triangular antenna sections form a square or a rectangle as a polygon, wherein the RF signal terminals of the two adjacent respectively diametrically opposite antenna sections can be acted upon alternately with an RF signal. By this advantageous embodiment, an operation with two different polarization planes is possible, which are preferably offset by about 90 ° to each other, wherein an RF source via a switch, the two RF signal terminal pairs drives differentially.

Gemäß einer weiteren bevorzugten Weiterbildung sind die Schirmwände mit einer elektrisch leitfähigen Abschirmeinrichtung der Trägereinrichtung kontaktiert, welche vorzugsweise auf oder in der Trägereinrichtung vorgesehen ist, und vorzugsweise beide, insbesondere großflächig, an ein Bezugspotenzial angeschlossen sind. Diese vorteilhafte Maßnahme bietet eine nochmals verbesserte Abstrahl-/ Empfangscharakteristik aufgrund verbesserter Schirmung.According to a further preferred development, the screen walls are contacted with an electrically conductive shielding device of the carrier device, which is preferably provided on or in the carrier device, and preferably both, in particular over a large area, are connected to a reference potential. This advantageous measure offers a further improved emission / reception characteristic due to improved shielding.

Gemäß einer weiteren bevorzugten Weiterbildung ist in etwa parallel zur Trägereinrichtung ein Radom als Abdeckung über den mindestens vier im Wesentlichen dreieckförmigen Antennenabschnitten vorgesehen, wobei die Antennenvorrichtung vorzugsweise über mit Rädern versehenen Achsen beweglich gelagert ist. Ein Schutz der Sende-/Empfangsvorrichtung wird somit gewährleistet und die Vorrichtung ist vorzugsweise über starr mittels Achsen verbundener Räder verschiebbar gewährleistet.According to a further preferred development, a radome is provided approximately parallel to the carrier device as a cover over the at least four substantially triangular antenna sections, wherein the antenna device is preferably movably mounted on axles provided with wheels. A protection of the transmitting / receiving device is thus ensured and the device is preferably provided via rigidly connected by means of axes wheels slidably.

Gemäß einer weiteren bevorzugten Weiterbildung bestehen die mindestens vier im Wesentlichen dreieckförmigen Antennenabschnitte aus separaten Blechen, welche vorzugsweise im Bereich von Schirmwänden miteinander mechanisch und/oder elektrisch verbunden sind, oder aus einem einstückigen Metalldruckgussteil oder einem Kunststoffdruckgussteil, welches zumindest abschnittsweise mit einer leitfähigen Metallisierung versehen ist. Kostengünstige Herstellungsvarianten werden somit vorteilhaft bereitgestellt.According to a further preferred development, the at least four essentially triangular antenna sections consist of separate metal sheets, which are preferably mechanically and / or electrically connected to one another in the region of screen walls are connected, or from a one-piece metal die casting or a plastic die-cast part, which is at least partially provided with a conductive metallization. Cost-effective production variants are thus advantageously provided.

Gemäß einer weiteren bevorzugten Weiterbildung sind die Dreiecksspitzen der zumindest vier im Wesentlichen dreieckförmigen Antennenabschnitte über Lötkontaktierungen oder leitfähige Klebekontaktierungen elektrisch an die HF-Signalanschlüsse der Trägereinrichtung angeschlossen. Daraus resultiert vorteilhaft ebenfalls eine kostengünstige und einfache Montage.According to a further preferred development, the triangular tips of the at least four essentially triangular antenna sections are electrically connected to the RF signal terminals of the carrier device via solder contacts or conductive adhesive contacts. This advantageously results in a cost-effective and easy installation.

ZEICHNUNGENDRAWINGS

Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und in der nachfolgenden Beschreibung näher erläutert.Embodiments of the invention are illustrated in the drawings and explained in more detail in the following description.

Es zeigen:

  • Fig. 1 eine schematische Schrägdraufsicht einer Sende-/Empfangsvorrichtung zur Erläuterung einer ersten Ausführungsform der vorliegenden Erfindung;
  • Fig. 2 eine schematische Querschnittsansicht einer Sende-/Empfangsvorrichtung zur Erläuterung einer Ausführungsform der vorliegenden Erfindung;
  • Fig. 3 eine schematische Querschnittsansicht einer vereinfachten Sende-/Empfangsvorrichtung zur Erläuterung der Funktionsweise der vorliegenden Erfindung;
  • Fig. 4 und 5 eine schematische Schrägdraufsicht bzw. -unteransicht einer Sende-/Empfangsvorrichtung zur Erläuterung einer weiteren Ausführungsform der vorliegenden Erfindung;
  • Fig. 6 eine schematische Draufsicht auf einen Antennenabschnitt zur Erläuterung einer Ausführungsform der vorliegenden Erfindung;
  • Fig. 7 eine schematische Schrägdraufsicht der Vorrichtung gemäß Fig. 6 in gebogenem Zustand;
  • Fig. 8 eine schematische Schrägdraufsicht einer Sende-/Empfangsvorrichtung zur Erläuterung einer weiteren Ausführungsform der vorliegenden Erfindung;
  • Fig. 9 und 10 eine schematische Schrägdraufsicht bzw. -unteransicht einer Sende-/Empfangsvorrichtung zur Erläuterung einer weiteren Ausführungsform der vorliegenden Erfindung; und
  • Fig. 11 eine schematische Schrägdraufsicht einer Sende-Empfangsvorrichtung zur Erläuterung einer weiteren Ausführungsform der vorliegenden Erfindung.
Show it:
  • Fig. 1 a schematic oblique top view of a transmitting / receiving apparatus for explaining a first embodiment of the present invention;
  • Fig. 2 a schematic cross-sectional view of a transmitting / receiving device for explaining an embodiment of the present invention;
  • Fig. 3 a schematic cross-sectional view of a simplified transceiver device for explaining the operation of the present invention;
  • 4 and 5 a schematic oblique top view and bottom view of a transmitting / receiving device for explaining a further embodiment of the present invention;
  • Fig. 6 a schematic plan view of an antenna portion for explaining an embodiment of the present invention;
  • Fig. 7 a schematic oblique top view of the device according to Fig. 6 in a bent state;
  • Fig. 8 a schematic oblique top view of a transmitting / receiving device for explaining a further embodiment of the present invention;
  • Fig. 9 and 10 a schematic oblique top view and bottom view of a transmitting / receiving device for explaining a further embodiment of the present invention; and
  • Fig. 11 a schematic oblique top view of a transceiver for explaining a further embodiment of the present invention.

BESCHREIBUNG DER AUSFÜHRUNGSBEISPIELEDESCRIPTION OF THE EMBODIMENTS

In den Figuren bezeichnen gleiche Bezugszeichen gleiche oder funktionsgleiche Bestandteile.In the figures, the same reference numerals designate the same or functionally identical components.

In Fig. 1 ist eine Antennengrundform auf einer Trägereinrichtung 15, beispielsweise einer Leiterplatte, ohne Abdeckung dargestellt. Dabei sind vier im Wesentlichen identische, elektrisch leitfähige, im Wesentlichen dreieckförmige Antennenabschnitte 10 derart angeordnet, dass sie in Draufsicht ein Quadrat mit im Bereich des Mittelpunktes 11 des Quadrats liegenden Dreiecksspitzen 12 bilden. Die im Wesentlichen dreieckförmigen Antennenabschnitte 10 gehen an den Außenseiten des Quadrats in im Wesentlichen senkrecht zur Trägereinrichtung 15 verlaufende elektrisch leitfähige Schirmwände 13 über. Gemäß Fig. 1 ist eine Ausführungsform dargestellt, in welcher die vier Antennenabschnitte 10 sowie die jeweiligen Schirmwände 13 einstückig z.B. aus Aluminiumdruckguss hergestellt sind. Die im Bereich des Mittelpunktes 11 der Anordnung liegenden Dreiecksspitzen 12 sind dabei in Bezug auf die Oberkanten der Schirmwände 13 nach unten in Richtung der Trägereinrichtung 15 verlagert, so dass eine Trichter- bzw. Konusform resultiert. Die Dreiecksspitzen 12 sind dabei mit HF-Signalanschlüssen (in Fig. 1 nicht dargestellt) der Trägereinrichtung 15 kontaktiert.In Fig. 1 For example, an antenna basic form is shown on a carrier device 15, for example a printed circuit board, without a cover. In this case, four essentially identical, electrically conductive, substantially triangular antenna sections 10 are arranged in such a way that they form a square in plan view with triangular points 12 lying in the region of the midpoint 11 of the square. The essentially triangular antenna sections 10 merge on the outer sides of the square in electrically conductive screen walls 13 extending substantially perpendicular to the carrier device 15. According to Fig. 1 an embodiment is shown, in which the four antenna sections 10 and the respective screen walls 13 are integrally made, for example of die-cast aluminum. The lying in the region of the midpoint 11 of the arrangement triangular tips 12 are in relation to the upper edges of the screen walls 13 downwardly displaced in the direction of the support means 15, so that a funnel or conical shape results. The triangular tips 12 are connected to RF signal terminals (in Fig. 1 not shown) of the carrier device 15 contacted.

In Fig. 2 ist eine mit Fig. 1 vergleichbare Konfiguration im Querschnitt jedoch mit einer Abdeckeinrichtung 17 in Form eines Radoms aus einem elektrisch nicht leitfähigen Material dargestellt. Die Abdeckeinrichtung 17 verläuft dabei im Wesentlichen parallel zur Trägereinrichtung 15. Zwischen den im Wesentlichen dreieckförmigen Antennenabschnitten 10 und den Schirmwänden 13 ist ein Übergangsabschnitt 18 vorgesehen, welcher im Wesentlichen parallel zur Trägereinrichtung 15 verläuft und insbesondere die Abdeckeinrichtung 17 berührt.In Fig. 2 is one with Fig. 1 comparable configuration in cross-section, however, shown with a cover 17 in the form of a radome made of an electrically non-conductive material. The covering device 17 in this case runs essentially parallel to the carrier device 15. Between the substantially triangular antenna sections 10 and the screen walls 13, a transition section 18 is provided, which runs essentially parallel to the carrier device 15 and in particular touches the covering device 17.

Kommen mechanische Belastungen auf die Abdeckeinrichtung 17, d.h. insbesondere ein Radom, welches die Sende-/Empfangseinrichtung an deren Oberseite berührt, so wird die Last großflächig über die Schirmwand 13 am gesamten Umfang auf die Trägereinrichtung 15 übertragen. Innen liegende HF-Signalanschlüsse 15', welche mit den Dreiecksspitzen 12 der im Wesentlichen dreieckförmigen Antennenabschnitte 10 in Draufsicht betrachtet elektrisch verbunden ist, sind gegeneinander isoliert. Die im Wesentlichen dreieckförmigen Antennenabschnitte 10 gehen vorzugsweise in den Dreiecksspitzen 12 in rechteckförmige Stege (in Fig. 1 und 2 nicht zu sehen) über, welche einen vorbestimmten Krümmungsradius aufweisen. Der Krummungsradius zwischen den im Querschnitt gemäß Fig. 2 schräg verlaufenden Antennenabschnitten 10 und den im Bereich der Trägereinrichtung senkrecht zur Trägereinrichtung 15 mündenden Dreiecksspitzen 12 ist derart gestaltet, dass sich Radarwellen leicht ablösen können.If mechanical loads occur on the covering device 17, ie in particular a radome which touches the transmitting / receiving device on the upper side thereof, the load is transmitted over a large area to the carrier device 15 via the screen wall 13 on the entire circumference. Internal RF signal terminals 15 ', which is electrically connected to the triangular tips 12 of the substantially triangular antenna sections 10 in plan view, are insulated from each other. The substantially triangular antenna sections 10 preferably pass in the triangular tips 12 into rectangular webs (in FIG Fig. 1 and 2 not visible) via which have a predetermined radius of curvature. The radius of curvature between the cross-section according to Fig. 2 obliquely extending antenna portions 10 and the opening in the region of the support means perpendicular to the support means 15 triangular tips 12 is designed such that radar waves can easily peel off.

Aus dem Schnittbild in Fig. 2 ist die Trichterform zwischen zwei diametral gegenüberliegenden Antennenabschnitten 10 ersichtlich, wobei im Bereich des Mittelpunktes 11 eine Antennenachse 14 verläuft. Die Trägereinrichtung 15 ist vorzugsweise eine Mehrschicht- bzw. Multi-Layer-Leiterplatte, welche eine durchgängige Abschirmebene (in Fig. 2 nicht dargestellt) aufweist, wobei die Abschirmebene vorzugsweise mit den Schirmwänden 13 elektrisch leitend verbunden ist.From the sectional view in Fig. 2 the funnel shape between two diametrically opposite antenna sections 10 can be seen, wherein in the region of the center 11 an antenna axis 14 extends. The carrier device 15 is preferably a multi-layer printed circuit board which has a continuous shielding plane (in Fig. 2 not shown), wherein the shielding plane is preferably electrically connected to the screen walls 13.

In der Konfiguration gemäß Fig. 3 ist lediglich ein Antennenelement bestehend aus den im Wesentlichen dreieckförmigen Antennenabschnitten 10 sowie den Schirmwänden 13 nebst Übergangsabschnitt 18 dargestellt. Durch die gebogenen Pfeile ist ein elektromagnetisches Wechselfeld dargestellt, welches von differentiellen, d.h. mit im Wesentlichen um 180° zueinander verschobenen HF-Signalen gespeist wird. Entlang der Antennenachse 14 breiten sich die elelctromagnetischen Wellen vorzugsweise im Radarbereich mit einer Frequenz zwischen 2 und 5 GHz aus. Vorzugsweise besteht die Antenne dabei aus einem quaderförmigen Gehäuse mit vier innen liegenden HF-Signalanschlüssen 15' gemäß Fig. 1 und 2.In the configuration according to Fig. 3 is merely an antenna element consisting of the substantially triangular antenna sections 10 and the screen walls 13 together with transition section 18 shown. By the curved arrows, an electromagnetic alternating field is shown, which is fed by differential, ie with substantially 180 ° to each other shifted RF signals. Along the antenna axis 14, the electromagnetic waves preferably propagate in the Radar range with a frequency between 2 and 5 GHz. Preferably, the antenna consists of a cuboid housing with four internal RF signal terminals 15 'according to Fig. 1 and 2 ,

Jeweils zwei diametral gegenüberliegende HF-Signalanschlüsse 15' werden gemäß Fig. 3 mit um etwa 180° zueinander phasenverschobenen HF-Signalen differentiell angeregt. Daraus resultiert ein Betrieb der Vorrichtung mit zwei unterschiedlichen, vorzugsweise um etwa 90° zueinander versetzten, Polarisationsebenen. Die gegenüberliegenden Anschlüsse liegen geometrisch nahe beieinander und weisen zur Antennenachse 14 vorzugsweise eine parallele Richtung, jedoch zumindest einen spitzen Winkel auf. Nach einem vorzugsweise rechteckförmigen, kürzen Steg geht die Dreiecksspitze 12 in einen im Wesentlichen dreieckförmigen Antennenabschnitt 10 über. Die Dreiecksspitze weist eine abgerundete Krümmung auf, welche vorzugsweise in einen ebenen Antennenabschnitt 10 übergeht. Vorstellbar ist jedoch auch eine zumindest abschnittsweise gewellte und/oder getreppte und/oder konkave und/oder konvexe Querschnittsgestalt der Antennenabschnitte 10.In each case two diametrically opposite RF signal terminals 15 'are according to Fig. 3 differentially excited by about 180 ° to each other phase shifted RF signals. This results in an operation of the device with two different, preferably offset by about 90 ° to each other, polarization planes. The opposite terminals are geometrically close to each other and have the antenna axis 14 preferably a parallel direction, but at least an acute angle. After a preferably rectangular, shortened web, the triangular tip 12 merges into a substantially triangular antenna section 10. The triangular tip has a rounded curvature, which preferably merges into a planar antenna section 10. However, it is also conceivable that an at least sectionally corrugated and / or stepped and / or concave and / or convex cross-sectional shape of the antenna sections 10.

Ein oberer Abschnitt des Antennenabschnitts 10 geht in eine Tangentiallinie über, wenn Radien im Betrag bei gleichem Mittelpunkt zwischen dem schrägen Antennenabschnitt 10 und der senkrechten Schirmwand 13 zusammenfallen. Die Schirmwand 13 ist an deren unteren Ende im Bereich der Trägereinrichtung 15 flächig oder zumindest partiell mit einer Systemmasse, vorzugsweise einem Bezugspotenzial, ebenso verbunden wie eine in der Trägereinrichtung 15 integrierte flächige Abschirmung aus elektrisch leitfähigen Material. Damit werden elektromagnetische Felder, welche sich unterhalb der Antennenabschnitte 10 ausbilden, nach außen hin abgeschirmt.An upper portion of the antenna portion 10 becomes a tangential line when radii of the same center point coincide between the oblique antenna portion 10 and the vertical screen wall 13. The screen wall 13 is at its lower end in the region of the support means 15 areally or at least partially connected to a system ground, preferably a reference potential, as well as an integrated in the support means 15 planar shield of electrically conductive material. This electromagnetic fields, which form below the antenna sections 10, shielded to the outside.

Zwischen den sich diametral gegenüberliegenden, konus- bzw. trichterförmig verlaufenden Antennenabschnitten 10 bilden sich somit solche elektromagnetischen Felder aus, die sich in bekannter Weise ablösen. Die Geometrie ist derart gestaltet, dass sich ein ablösendes Feld im Quer- wie im Längsschnitt oberhalb der Sende-/Empfangseinrichtung ohne Einbrüche ausbildet. Die dabei direkt benachbarten Antennenabschnitte sind dabei weitgehend entkoppelt.Between the diametrically opposite, cone-shaped or funnel-shaped antenna sections 10 thus form such electromagnetic fields that detach in a known manner. The geometry is designed in such a way that a detaching field is formed in the transverse and in the longitudinal section above the transmitting / receiving device without dips. The directly adjacent antenna sections are largely decoupled.

Gemäß der Ausführungsform in Fig. 1 weist die Sende-/Empfangseinrichtung 4 Symmetrieebenen, eine horizontale, eine vertikale sowie die dazu im Winkel von 45° liegenden Ebenen in Draufsicht der Konfiguration gemäß Fig. 1 betrachtet auf. Gemäß einer Weiterbildung ist es möglich, zwei senkrecht zueinander durch die diametral gegenüberliegenden Antennenabschnitte 10 gebildeten Antennenelemente unterschiedlich zu dimensionieren, so dass anstatt eines Quadrates gemäß Fig. 1 in Draufsicht ein Rechteck (nicht dargestellt) entsteht. Antennenabschnitte 10 entlang der Längsseite werden dabei vorzugsweise mit einer niedrigeren Frequenz von beispielsweise 2 bis 3 GHz und entlang der Querseite, d.h. in orthogonaler Richtung dazu, beispielsweise von 2,5 bis 4 GHz betrieben. Daraus resultieren lediglich zwei Symmetrieebenen.According to the embodiment in FIG Fig. 1 the transmitting / receiving device 4 has planes of symmetry, a horizontal plane, a vertical plane and planes lying at an angle of 45 ° in plan view of the configuration according to FIG Fig. 1 considered. According to a development, it is possible to dimension two antenna elements formed perpendicular to one another by the diametrically opposite antenna sections 10 differently, so that instead of a square according to FIG Fig. 1 in plan view a rectangle (not shown) is formed. Antenna sections 10 along the longitudinal side are preferably operated at a lower frequency of, for example, 2 to 3 GHz and along the transverse side, ie in the orthogonal direction thereto, for example from 2.5 to 4 GHz. This results in only two planes of symmetry.

Für Kunststoffhalter (nicht dargestellt) unterhalb der Antennenabschnitte 10 können partielle Ausnehmungen in die Schirmwände 13 eingebracht werden, unter der Voraussetzung, dass diese nicht zu groß und derart positioniert sind, dass sich im abgeschirmten Raum zwischen Trägereinrichtung 15 und Antennenabschnitten 10 sowie Schirmwänden 13 keine Maximas aufweisen. Dann haben derartige Ausnehmungen keinen negativen Einfluss auf die sich oben nach außen ablösenden elektromagnetischen Wellen.For plastic holders (not shown) below the antenna sections 10, partial recesses can be introduced into the screen walls 13, provided that they are not too large and positioned such that there are no maximas in the shielded space between carrier device 15 and antenna sections 10 and screen walls 13 exhibit. Then such recesses have no negative impact on the top outward peeling electromagnetic waves.

Die vier HF-Signalanschlüsse 15' ragen vorteilhaft in entsprechend voneinander isolierte Durchkontaktierungen der Trägereinrichtung 15 bzw. Leiterplatte und werden dort elektrisch mit den Dreiecksspitzen 12 kontaktiert. Eine vorzugsweise vorgesehene, der Trichterform abgewandte Metalllage in/aus der Trägereinrichtung 15 ist vorzugsweise weitgehend vollflächig mit einer Systemmasse bzw. einem Bezugspotenzial kontaktiert sowie die Unterseite der Schirmwände 13. Möglich ist jedoch auch ein Kontakt jeweils zwischen einem Mittelleiter eines Koaxialkabels und einer Dreiecksspitze 12 eines Antennenabschnitts 10, wobei dessen Außenleiter mit der Systemmasse bzw. einem Bezugspotenzial verbunden ist. Außerdem sind Kombinationen der eben genannten Möglichkeiten angedacht.The four RF signal terminals 15 'advantageously protrude into correspondingly insulated through-holes of the carrier device 15 or printed circuit board and are contacted there electrically with the triangular tips 12. A preferably provided, the funnel shape remote metal layer in / out of the support means 15 is preferably contacted over the entire surface with a system ground or a reference potential and the bottom of the screen walls 13. However, is also possible a contact each between a center conductor of a coaxial cable and a triangular tip 12 of a Antenna section 10, wherein the outer conductor is connected to the system ground or a reference potential. In addition, combinations of the aforementioned options are being considered.

Vorgegebene Randbedingungen, wie eine untere und obere Grenzfrequenz, eine maximale horizontale und/oder vertikale Einbaugeometrie der Sende-/Empfangsvorrichtung können innerhalb gewisser Grenzen Berücksichtigung finden und angepasst werden. Prinzipiell bestimmt die gestreckte Länge und obere Breite der im Wesentlichen dreieckförmigen Antennenabschnitte 10 den möglichen Sende-/Empfangsbereich. Durch Ausnehmungen 16 gemäß Fig. 4 in den im Wesentlichen dreieckförmigen Antennenabschnitten 10 können Antennencharakteristika modifiziert und insbesondere die Abstrahlcharakteristik angepasst werden. Außerdem ist es möglich, die für eine untere Sollfrequenz erforderliche Abmessung durch entsprechende Ausnehmungen 16 zu reduzieren. Durch die Ausnehmungen 16 gemäß Fig. 4 und Fig. 5 (in Unteransicht), welche sich an den zwei freiliegenden Kanten des Antennenabschnitts 10 im oberen und mittleren Bereich befinden, können die untere Grenzfrequenz verkleinert und partielle Verbesserungen der Antennenanpassung erzielt werden. Möglich sind dabei auch andere Gestaltungen der Ausnehmungen, beispielsweise rund, sägezahnförmig, gewellt, mittels welcher bei geeigneter Auslegung gleichartige Effekte erzielbar sind.Given boundary conditions, such as a lower and upper limit frequency, a maximum horizontal and / or vertical installation geometry of the transceiver can be taken into account and adjusted within certain limits. In principle determines the stretched length and upper width of the Essentially triangular antenna sections 10 the possible transmission / reception area. By recesses 16 according to Fig. 4 In the substantially triangular antenna sections 10, antenna characteristics can be modified and, in particular, the emission characteristic can be adapted. In addition, it is possible to reduce the required for a lower target frequency dimension by corresponding recesses 16. Through the recesses 16 according to 4 and FIG. 5 (in bottom view), which are located at the two exposed edges of the antenna portion 10 in the upper and middle region, the lower cutoff frequency can be reduced and partial improvements of the antenna matching can be achieved. Also possible are other configurations of the recesses, for example, round, sawtooth, corrugated, by means of which similar effects can be achieved with a suitable design.

Die in den Ausführungsformen gemäß Fig. 4 und 5 dargestellten Antennenvorrichtungen sind vorzugsweise aus Aluminiumdruckguss hergestellt und weisen Ausformungen 20 mit Befestigungslöchern auf, vermittels welcher die Sende-/ Empfangsvorrichtung auf der Trägereinrichtung 15 mechanisch und/oder elektrisch verbunden ist. Die Achsen 19 dienen zur starren Verbindung außen liegender Räder (nicht dargestellt), mit deren Hilfe die Sende-/Empfangsvorrichtung parallel über Flächen bewegt werden können. Zur Platzeinsparung verlaufen diese Achsen 19 vorzugsweise innerhalb der Außenabmessungen der Sende-/Empfangsvorrichtung mit ihren Antennenabschnitten 10 und sind aus einem nicht leitfähigen Material. Die Öffnungen zur Durchführung der Achsen 19 liegen dabei an vorbestimmten berechneten Positionen, an welchen kein Feldmaximum der elektromagnetischen Wellen im von den Antennenabschnitten 10 gebildeten Raum auftritt.Those in the embodiments according to 4 and 5 The antenna devices shown are preferably made of die-cast aluminum and have formations 20 with mounting holes, by means of which the transmitting / receiving device on the support means 15 is mechanically and / or electrically connected. The axles 19 are used for the rigid connection of external wheels (not shown), with the help of which the transmitting / receiving device can be moved in parallel over surfaces. To save space these axes 19 preferably extend within the outer dimensions of the transceiver with their antenna sections 10 and are made of a non-conductive material. The openings for the passage of the axes 19 lie at predetermined calculated positions at which no field maximum of the electromagnetic waves in the space formed by the antenna sections 10 occurs.

Die zum Betrieb der Sende-/Empfangsvorrichtung erforderliche HF-Signalzuleitung bzw. -ableitung bzw. -verteilung erfolgt vorteilhaft auf oder innerhalb der Trägereinrichtung 15, vorzugsweise einer Multi-Layer-Leiterplatte. Wenn Zuleitungen auf der zur Antennenseite gewandten Abschirmlage (nicht dargestellt) elektrisch davon isoliert verlaufen, sind diese vorzugsweise durch Grounded-Koplanar-Technik realisiert. Neben einer Ausführungsform als Druckgussteil aus Metall, vorzugsweise Aluminiumdruckguss, besteht die Möglichkeit, ein vergleichbares Spritzgussteil aus Kunststoffvorzusehen, welches mit einer leitfähigen Metallschicht nach bekannten Verfahren überzogen ist.The RF signal supply or dissipation or distribution required for operating the transceiver device is advantageously carried out on or within the carrier device 15, preferably a multi-layer printed circuit board. When leads on the shielding layer facing the antenna side (not shown) are electrically insulated therefrom, they are preferably realized by grounded coplanar technology. In addition to an embodiment as a die-cast part made of metal, preferably die-cast aluminum, it is possible to provide a comparable injection-molded part made of plastic, which is coated with a conductive metal layer by known methods.

Durch verteilte, spritzgussgerechte Durchbrüche im Kunststoffkörper wird ein quasi homogenes, abschnittsweise leitfähiges Antennenelement mit vergleichbaren Eigenschaften gebildet.By distributed, injection-oriented openings in the plastic body, a quasi-homogeneous, partially conductive antenna element is formed with comparable properties.

Gemäß den vorliegend beschriebenen Ausführungsformen gestaltet sich eine Montage sehr einfach, da die Sende-/Empfangsantenne auf die Trägereinrichtung 15 bzw. eine Leiter oder Massepotenzialplatte über die mitgegossenen oder mitgespritzten Befestigungslöcher 20 gemäß Fig. 4 und 5 angeschraubt wird. Die vier HF-Anschlusskontakte 15' werden mit den Dreiecksspitzen 12 entweder verlötet oder mit leitfähigem Klebstoff verklebt. Außerdem kann bei einer quadratischen Grundform die Antennen in beliebiger Richtung montiert werden.According to the presently described embodiments, mounting is very easy, since the transmitting / receiving antenna on the carrier device 15 or a conductor or ground potential plate on the mitgegossenen or sprayed mounting holes 20 according to 4 and 5 is screwed on. The four RF terminal contacts 15 'are either soldered to the triangular tips 12 or glued with conductive adhesive. In addition, with a square basic shape, the antennas can be mounted in any direction.

Die durch die HF-Signalanschlüsse 15' unabhängig voneinander ansteuerbaren, diametral gegenüberliegenden Antennenabschnitte 10 können somit zwei orthogonal zueinander liegende Polarisationen sendenlempfangen.The diametrically opposed antenna sections 10 which can be driven independently of one another by the RF signal connections 15 'can thus receive two orthogonal polarizations.

In Fig. 6 ist ein im Wesentlichen dreieckförmiger Antennenabschnitt 10 als Einzelblech 10' dargestellt. Das Einzelblech 10' ist dabei vorzugsweise ein Stanzteil aus einem Metall, wie beispielsweise Weißblech, und weist neben der Dreiecksspitze 12 und der Schirmwand 13 die Ausnehmungen 16 sowie ein Verrast und/oder Einhängeelement 22 sowie eine Verrast- und/oder Einhängeöffnung 23 auf. Über mechanische und/oder elektrische Verbindungselemente 21 kann das Einzelblech 10' auf einer Trägereinrichtung 15 mechanisch und/oder elektrisch angebunden werden. In Fig. 7 ist das Einzelblech 10' gemäß Fig. 6 nach einer verformenden Bearbeitung dargestellt. Die Schirmwand 13 weist gegenüber dem im Wesentlichen dreieckförmigen Antennenabschnitt 10 einen Winkel kleiner als 90° auf, und die Dreiecksspitze 12 zeigt eine vorbestimmte Krümmung. Im Bereich des Verrast- und/oder Einhängeelementes 22 ist die Schirmwand 13 umgebogen.In Fig. 6 a substantially triangular antenna section 10 is shown as a single sheet 10 '. The single sheet 10 'is preferably a stamped part made of a metal, such as tinplate, and in addition to the triangular tip 12 and the screen wall 13, the recesses 16 and a latching and / or hooking 22 and a Verrast- and / or Einhängeöffnung 23. By mechanical and / or electrical connection elements 21, the single sheet 10 'on a support means 15 mechanically and / or electrically connected. In Fig. 7 is the single sheet 10 'according to Fig. 6 shown after a deforming processing. The screen wall 13 has an angle smaller than 90 ° with respect to the substantially triangular antenna portion 10, and the triangular tip 12 shows a predetermined curvature. In the region of the latching and / or hooking element 22, the screen wall 13 is bent over.

In der Schrägdraufsicht gemäß Fig. 9 sind vier Antennenelemente gemäß Fig. 7 in einer mit Fig. 1 vergleichbaren Konfiguration auf eine Trägereinrichtung 15 montiert. Die Einzelbleche 10' sind dabei mit den Verrast- und/oder Einhängeelementen 22 sowie den Verrast- und/oder Einhängeöffnungen 23 derart ausgebildet, dass sie ineinander verschachtelt gefügt werden und dann eine Antenneneinheit bilden. Diese Einheit kann dann beispielsweise in eine Trägerplatte 15, vorzugsweise eine Leiterplatte, eingelötet werden. Die Einzelbleche 10' können bei Bedarf an den Kanten und Verrast- und/oder Einhängeelementen bzw. -öffnungen 22, 23 entweder vor oder nach der Montage auf der Trägereinrichtung 15 verlötet oder verklebt werden. Dadurch wird bei einem gewissen Vormontageaufwand eine stabile Sende-/Empfangsvorrichtung vergleichbar der mit Bezug auf Fig. 1 beschriebenen bereitgestellt. In Fig. 10 ist die Anordnung gemäß Fig. 9 in Unteransicht ohne Trägereinrichtung dargestellt.In the oblique top view according to Fig. 9 are four antenna elements according to Fig. 7 in one with Fig. 1 comparable configuration mounted on a support means 15. The individual sheets 10 'are in this case formed with the latching and / or hooking elements 22 and the latching and / or hooking-in openings 23 in such a way that they are nested together and then form an antenna unit. This unit can then be soldered, for example, in a support plate 15, preferably a printed circuit board become. If required, the individual sheets 10 'can be soldered or glued to the edges and latching and / or hooking elements or openings 22, 23 either before or after assembly on the carrier device 15. As a result, with a certain pre-assembly cost, a stable transceiver becomes comparable to that with reference to FIG Fig. 1 provided described. In Fig. 10 is the arrangement according to Fig. 9 shown in bottom view without support means.

Außerdem besteht die Möglichkeit, Einzelbleche 10' einzeln auf der Trägereinrichtung zu montieren, welches erst nach der Montage auf der Trägereinrichtung 15 eine elektrisch und/oder mechanische Verbindung aufweisen. Wenn alle vier Bleche 10' montiert sind, ist die Antenne vollständig, wobei die Bleche 10' bei Bedarf ebenfalls an den gemeinsamen Kanten verlötet werden können. Die Ausführungsform gemäß Fig. 11 beschreibt eine Konfiguration, bei welcher sich die Einzelbleche 10' gegenseitig auch nach der Montage auf der Trägereinrichtung 15 nicht direkt berühren. Jedes Einzelblech 10' wird dabei für sich in die Trägereinrichtung eingelötet. Erst mit dem Einbau aller vier Einzelbleche 10' bildet sich die Sende-/Empfangsvorrichtung. Zur Reduktion von Wirbelstromeffekten in den im Wesentlichen dreieckförmigen Antennenabschnitten 10 sind gemäß Fig. 11 Schlitze bzw. Ausnehmungen 25 vorgesehen. Diese Schlitze bzw. Ausnehmungen zur Reduktion von Wirbelstromeinflüssen können ebenfalls bei allen anderen Ausführungsformen der vorliegenden Erfindung zum Einsatz kommen und sind vorzugsweise entlang der Spiegelachse der Antennenabschnitte 10 vorgesehen. In Fig. 11 sind darüber hinaus Ausnehmungen in den Schirmwänden 13 dargestellt, wobei in Querrichtung zwei Radachsen 19 gemäß Fig. 4 und 5 eingebracht sind.In addition, it is possible to mount individual plates 10 'individually on the carrier device, which have an electrical and / or mechanical connection only after mounting on the carrier device 15. When all four panels 10 'are mounted, the antenna is complete and the panels 10' can also be soldered to the common edges as needed. The embodiment according to Fig. 11 describes a configuration in which the individual sheets 10 'do not touch each other directly after mounting on the support means 15. Each single sheet 10 'is soldered for in the carrier device. Only with the installation of all four individual sheets 10 'forms the transmitting / receiving device. To reduce eddy current effects in the substantially triangular antenna sections 10 are according to Fig. 11 Slots or recesses 25 are provided. These slots or recesses for reducing eddy current influences can also be used in all other embodiments of the present invention and are preferably provided along the mirror axis of the antenna sections 10. In Fig. 11 In addition, recesses are shown in the screen walls 13, wherein in the transverse direction two axles 19 according to 4 and 5 are introduced.

Gemäß Fig. 8 werden vier Einzelbleche 10' gemäß Fig. 7, d.h. bereits gebogen, in einen geeigneten Kunststoffhalter eingeclipst oder direkt als Einlegeteile mit eingespritzt. Dabei berühren sich die Einzelbleche 10' gegenseitig nicht, wobei der Kunststoffhalter 24 die Einzelbleche 10' primär an den Schirmwänden 13 (in Fig. 8 nicht zu sehen) geführtwerden. Die Bleche berühren sich auch nach dem Einbau auf einer Trägereinrichtung 15 (nicht dargestellt) nicht. Der Kunststoffhalter 24 ist dann besonders vorteilhaft, wenn er gleichzeitig als Funktionsträger oder Halter für weitere Elemente, wie beispielsweise Niederfrequenzspulenträger, um die Sende-/Empfangsvorrichtung dient. Bei allen Varianten aus Einzelblechen sind die Kosten sehr gering. Bei niedrigen Stückzahlen können die Blechteile per Laser ausgeschnitten werden. Für die ebenfalls benötigten einfachen Biegevorrichtungen fallen nur geringe Werkzeugkosten an. Sind große Stückzahlen vorgesehen, ist eine vollständig automatische Herstellung der Einzelbleche 10' im Taktverfahren möglich. Die Guss- und/oder Spritzgussteile gemäß den Fig. 1 bis 5 erfordern jedoch komplexere Werkzeuge.According to Fig. 8 four individual sheets 10 'according to Fig. 7 , ie already bent, clipped into a suitable plastic holder or injected directly as inserts. In this case, the individual sheets 10 'do not touch each other, wherein the plastic holder 24, the individual sheets 10' primarily on the screen walls 13 (in Fig. 8 not to be seen). The sheets do not touch each other even after installation on a support means 15 (not shown). The plastic holder 24 is particularly advantageous if it also serves as a function carrier or holder for other elements, such as low-frequency coil carrier to the transmitting / receiving device. For all variants of single sheets, the costs are very low. At low quantities, the sheet metal parts can be cut out by laser. For the likewise needed simple bending devices incur only low tooling costs. If large numbers are provided, a completely automatic production of the individual sheets 10 'in the cycle method is possible. The cast and / or injection molded parts according to Fig. 1 to 5 however, require more complex tools.

Obwohl die vorliegende Erfindung im Vorangehenden mit Bezug auf bevorzugte Ausführungsbeispiele beschrieben wurde, ist sie darauf nicht beschränkt, sondern auf vielfältige Weise modifizierbar. So können beispielsweise im Bereich zwischen der Schirmwand 13 und der Dreiecksspitze 12, d.h. auf den im Wesentlichen dreieckförmigen Antennenabschnitten 10, Sicken zur Reduzierung mechanischer Schwingungen vorgesehen werden.Although the present invention has been described in the foregoing with reference to preferred embodiments, it is not limited thereto but modifiable in a variety of ways. For example, in the region between the screen wall 13 and the triangular tip 12, i. be provided on the substantially triangular antenna sections 10, beads for reducing mechanical vibrations.

Neben den konkret beschriebenen Ausführungsbeispielen mit jeweils vier im Wesentlichen dreieckförmigen Antennenabschnitten sind auch höhere geradzahlige Anzahlen im Wesentlichen dreieckförmiger Antennenabschnitte, welche dann ein Polygon bilden, möglich, wobei sich diametral gegenüberliegende Antennenabschnitte mit einem wie beschriebenen HF-Signal zu beaufschlagen sind. Darüber hinaus sind die beschriebenen Größenverhältnisse und Materialien lediglich beispielhaft zu betrachten.In addition to the specific embodiments described in each case with four substantially triangular antenna sections and higher even numbers of substantially triangular antenna sections, which then form a polygon, possible, with diametrically opposite antenna sections are to be acted upon by an RF signal as described. In addition, the size ratios and materials described are merely exemplary.

Claims (10)

  1. Apparatus for transmission/reception of electromagnetic RF signals having:
    a first essentially triangular, electrically conductive antenna section (10) for transmission and/or reception of RF signals;
    at least one second, third and fourth antenna section (10), which essentially correspond to the first antenna section (10) and together with it form a polygon, within one triangle point (12) in each case being located approximately in the area of the centre point (11) of the polygon at whose centre an antenna axis (14) is located; and
    a mounting device (15) essentially at right angles to the antenna axis (14),
    with the triangle points (12) of the triangular antenna sections (10) which, originating from the centre point (11), form at least in places, a funnel shape on the side facing away from the mounting device (15), in each case making contact with RF signal connections (15') of the mounting device (15) in the area of the centre point (11) of the polygon, and with two diametrically opposite antenna sections (10) in each case forming an antenna element, with
    the surface of the at least four essentially triangular antenna sections (10) being designed to be planar, convex or concave, and/or corrugated or stepped at least in places,
    characterized
    in that a transitional area (18) which at least in places runs at right angles to the antenna axis (14) is provided between the funnel shape and electrically conductive screening walls (13) which each run essentially parallel to the antenna axis (14), and into which the four essentially triangular antenna sections (10) each merge on a side opposite the triangle point (12).
  2. Apparatus according to Claim 1,
    characterized
    in that the triangle points (12) of the essentially triangular antenna sections (10), which preferably taper into a rectangular web, each have a predetermined curvature in the direction of the mounting device (15), in particular of a multilayer printed circuit board, and open thereon essentially at right angles to the RF signal connections (15'), which are electrically isolated from one another.
  3. Apparatus according to one of the preceding claims,
    characterized
    in that two exposed edges of the at least four essentially triangular antenna sections (10) are each provided with recesses (16) which have corners and/or are round, for matching of antenna characteristics.
  4. Apparatus according to one of the preceding claims,
    characterized
    in that four and only four essentially triangular antenna sections (10) form a square or a rectangle as a polygon, in which case two RF signal bands, preferably different but partially overlapping, frequency bands, can be applied to the RF signal connections (15') of the two adjacent respectively diametrically opposite antenna sections (10).
  5. Apparatus according to one of the preceding claims,
    characterized
    in that four and only four essentially triangular antenna sections (10) form a square or a rectangle as a polygon, in which case an RF signal can be applied alternately to the RF signal connections (15') of the two adjacent respectively diametrically opposite antenna sections (10).
  6. Apparatus according to Claim 1,
    characterized
    in that the screening walls (13) make contact with an electrically conductive screening device for the mounting device (15), which is preferably provided on or in the mounting device (15), and preferably both are connected, in particular over a large area, to a reference earth potential.
  7. Apparatus according to one of the preceding claims,
    characterized
    in that a radome (17) is provided approximately parallel to the mounting device (15), as a cover over the at least four essentially triangular antenna sections (10), with the antenna apparatus preferably being mounted such that it can move by means of shafts (19) which are provided with wheels.
  8. Apparatus according to one of the preceding claims,
    characterized
    in that the at least four essentially triangular antenna sections (10) are composed of separate metal sheets (10'), which are preferably mechanically and/or electrically connected to one another in the area of screening walls (13), or are composed of an integral metal die-casting or a plastic die-casting, which is provided with conductive metallization at least in places.
  9. Apparatus according to one of the preceding claims,
    characterized
    in that the triangle points (12) of the at least four essentially triangular antenna sections (10) are electrically connected via solder contracts or conductive adhesive contacts to the RF signal connections of the mounting device (15).
  10. Method for transmission/reception of electromagnetic RF signals, having the following steps:
    provision of a first essentially triangular, electrically conductive antenna section (10);
    provision of at least one second, third and fourth antenna section (10), which essentially correspond to the first and which each have a triangle point (12) approximately in the area of the centre point (11) of a polygon, which is formed by the antenna sections (10), at whose centre an antenna axis (14) is located;
    provision of a mounting device (15) essentially at right angles to the antenna axis (14); and
    application to in each case two diametrically opposite RF signal connections of the mounting device (15), which are arranged in the area of the centre point (11), of a differential RF signal, which signals are in each case phase shifted through about 180° with respect to one another, in a respectively predetermined frequency band, with the triangle points (12) of the triangular antenna sections (10) which, originating from the centre point (11), form at least in places a funnel shape on the side facing away from the mounting device (15), in each case making contact with the RF signal connections, with the surface of the at least four essentially triangular antenna sections (10) being designed to be planar, convex or concave and/or corrugated or stepped at least in places, wherein a transitional area (18) which at least in places runs at right angles to the antenna axis (14) is provided between the funnel shape and electrically conductive screening walls (13) which each run essentially parallel to the antenna axis (14), and into which the four essentially triangular antenna sections (10) each merge on a side opposite the triangle point (12).
EP05726517A 2004-07-02 2005-05-24 Device and method for transmitting/receiving electromagnetic hf signals Not-in-force EP1769564B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004032175A DE102004032175A1 (en) 2004-07-02 2004-07-02 Apparatus and method for transmitting / receiving electromagnetic RF signals
PCT/EP2005/052359 WO2006003059A1 (en) 2004-07-02 2005-05-24 Device and method for transmitting/receiving electromagnetic hf signals

Publications (2)

Publication Number Publication Date
EP1769564A1 EP1769564A1 (en) 2007-04-04
EP1769564B1 true EP1769564B1 (en) 2008-10-15

Family

ID=34968201

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05726517A Not-in-force EP1769564B1 (en) 2004-07-02 2005-05-24 Device and method for transmitting/receiving electromagnetic hf signals

Country Status (5)

Country Link
US (1) US20080258975A1 (en)
EP (1) EP1769564B1 (en)
JP (1) JP4171048B2 (en)
DE (2) DE102004032175A1 (en)
WO (1) WO2006003059A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005062874A1 (en) * 2005-12-29 2007-07-05 Robert Bosch Gmbh Electromagnetic high frequency signal transmitting and/or receiving device e.g. radar antenna, for hand tool device, has two antenna sections, which are arranged adjacent to one another and connected with one another by resistance units
DE102008041651A1 (en) 2008-08-28 2010-03-04 Robert Bosch Gmbh electrical appliance
DE102011088435A1 (en) * 2011-12-13 2013-06-13 Robert Bosch Gmbh Hand tool device with at least one locating antenna
US9755295B2 (en) * 2012-05-01 2017-09-05 Avago Technologies General Ip (Singapore) Pte. Ltd. Antenna configured for use in a wireless transceiver
EP3979413A4 (en) * 2019-09-09 2023-01-25 Rosenberger Technologies Co., Ltd. High-gain miniaturized antenna element and antenna

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2894124A (en) * 1954-01-07 1959-07-07 Itt Broad band omni-polarized multiple antenna system with each antenna having individual detector and low frequency coupling network
US3087159A (en) * 1960-01-08 1963-04-23 Boeing Co Microwave scimitared antenna
US3742510A (en) * 1971-01-12 1973-06-26 Itt Multimode discone antenna
EP0196775B1 (en) * 1985-02-28 1989-05-10 Gallaher Limited Printing inks and printed substrates
FR2751471B1 (en) * 1990-12-14 1999-02-12 Dassault Electronique WIDE-BAND RADIATION DEVICE WHICH MAY BE MULTIPLE POLARIZATION
CA2240114A1 (en) * 1997-07-03 1999-01-03 Thomas P. Higgins Dual polarized cross bow tie dipole antenna having integrated airline feed
DE10196280T5 (en) * 2000-05-31 2004-08-26 Bae Systems Information And Electronic Systems Integration Inc. Narrow-band, symmetrical, crossed, circularly polarized antenna loaded with meander lines
US6608600B2 (en) * 2001-05-03 2003-08-19 Radiovector U.S.A., Llc Single piece element for a dual polarized antenna
DE10203873A1 (en) * 2002-01-31 2003-08-14 Kathrein Werke Kg Dual polarized radiator arrangement
US6833815B2 (en) * 2002-09-20 2004-12-21 Bae Systems Information And Electronic Systems Integration Inc. Cavity embedded meander line loaded antenna
US6940465B2 (en) * 2003-05-08 2005-09-06 Kathrein-Werke Kg Dual-polarized dipole antenna element
US7132995B2 (en) * 2003-12-18 2006-11-07 Kathrein-Werke Kg Antenna having at least one dipole or an antenna element arrangement similar to a dipole

Also Published As

Publication number Publication date
DE502005005706D1 (en) 2008-11-27
DE102004032175A1 (en) 2006-01-19
JP4171048B2 (en) 2008-10-22
JP2006528473A (en) 2006-12-14
US20080258975A1 (en) 2008-10-23
WO2006003059A1 (en) 2006-01-12
EP1769564A1 (en) 2007-04-04

Similar Documents

Publication Publication Date Title
EP0965152B1 (en) Resonant antenna
EP2676327B1 (en) Array antenna
DE102010012615B4 (en) In a control module housing built-in slot antenna
DE102007056258A1 (en) Chip antenna and mobile telecommunication terminal, which has these
DE3129425C2 (en)
DE19713929A1 (en) Transmitting and receiving antenna system
DE10143168A1 (en) Circuit board and SMD antenna therefor
DE10120248A1 (en) Structure for connecting a non-radiating dielectric waveguide and a metal waveguide, transmitter / receiver module for millimeter waves and transmitter / receiver for millimeter waves
EP3244483B1 (en) Screened casing for use in hf applications
EP1700357A1 (en) Antenna assembly, in particular for radar applications in motor vehicles
WO2004095634A2 (en) Fixture for mobile radio equipment in a vehicle
EP1769564B1 (en) Device and method for transmitting/receiving electromagnetic hf signals
DE10346847B4 (en) microwave antenna
DE60313588T2 (en) MICROWAVE ANTENNA
DE102012016627A1 (en) Patch antenna installed in motor vehicle, has feeder structure that is provided with phase shifter arrangement for producing phase shift at two connecting points on radiating surface
DE10210341A1 (en) Multi-band microwave antenna
EP0927437B1 (en) Mobile radiotelephony planar antenna
DE4324480C2 (en) Antenna arrangement
DE102011117690B3 (en) Circularly polarized patch antenna for use in body sheet of motor car, has supply structure comprising phase shifter-arrangement that is connected with emitter surface at two connection points under effect of phase shift
DE112022001761T5 (en) ANTENNA DEVICE AND COMMUNICATION DEVICE
DE102022109407A1 (en) Antenna element for wireless communication
EP3707775B1 (en) Coupling and decoupling device between a circuit carrier and a waveguide
DE10313498A1 (en) Antenna coupler for mobile radiotelephone service devices sets up electromagnetic coupling of high-frequency signals via an external antenna like a car aerial
WO2001017061A1 (en) Multiband antenna
DE102021203543B3 (en) Antenna device for a mobile radio device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20070202

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

17Q First examination report despatched

Effective date: 20070515

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): DE FR GB IT

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 502005005706

Country of ref document: DE

Date of ref document: 20081127

Kind code of ref document: P

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20090519

Year of fee payment: 5

Ref country code: IT

Payment date: 20090526

Year of fee payment: 5

26N No opposition filed

Effective date: 20090716

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20090528

Year of fee payment: 5

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20100524

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20110131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100524

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100524

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20180725

Year of fee payment: 14

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502005005706

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191203