WO2011120501A1 - Wellenleiterantenne für eine radarantennenanordnung - Google Patents
Wellenleiterantenne für eine radarantennenanordnung Download PDFInfo
- Publication number
- WO2011120501A1 WO2011120501A1 PCT/DE2011/000306 DE2011000306W WO2011120501A1 WO 2011120501 A1 WO2011120501 A1 WO 2011120501A1 DE 2011000306 W DE2011000306 W DE 2011000306W WO 2011120501 A1 WO2011120501 A1 WO 2011120501A1
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- WO
- WIPO (PCT)
- Prior art keywords
- waveguide
- bottom plate
- profile
- antenna according
- waveguide antenna
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/28—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave comprising elements constituting electric discontinuities and spaced in direction of wave propagation, e.g. dielectric elements or conductive elements forming artificial dielectric
Definitions
- the invention relates to a waveguide antenna for a radar antenna arrangement, in particular for use in motor vehicles.
- Such antennas are known, for example, from US Pat. No. 5,572,228, which are realized in a mechanically pivoting manner in which they rotate a surface-structured drum in the immediate vicinity of a dielectric waveguide.
- the surface structuring of the drum is carried out by individual metal strips, the distance of which is determined by the rotation of the
- Drum changed in the region of the dielectric waveguide. This causes a rotation angle-dependent power extraction via a so-called leaky wave from the dielectric waveguide.
- the decoupled power is distributed in space in the form of a radiation writable by a directional antenna characteristic.
- the polarization of the radiated wave is oriented parallel to the metal strip present on the drum.
- an alternative waveguide type is used, which is arranged in the vicinity of an interference structure, such as a surface-structured drum.
- the waveguide has spaced metallic surfaces, between which a dielectric medium is arranged.
- the electromagnetic wave is coupled in between the metallic surfaces in the longitudinal direction.
- the metallic surfaces extend in the longitudinal direction, are in a first transverse direction to the
- Interference structure and the opposite side open and spaced from each other in a second transverse direction, wherein the second transverse direction is perpendicular to both the first transverse direction and the longitudinal direction of the waveguide.
- Such a waveguide has large ohmic
- An increased number of components leads to an increase in manufacturing costs and causes due to the rotating roller a susceptible application of the antenna.
- the rotating roller necessitates a reduction of manufacturing tolerances and mechanical loads, so that the production outlay additionally increases and such a waveguide is cost-intensive.
- a metallic waveguide leads a radar wave in a first mode and an emission of the radar wave takes place in a second mode different from the first mode from the waveguide by structural elements.
- the waveguide extends in an x-direction and limits the propagation of the radar wave in the first mode in the x-direction an interior space in which the structural elements extend.
- the structural elements act on the radar wave guided in the waveguide in the first mode as impurities, at which a part of the guided power is converted into the second mode and coupled out at the structural elements, whereby a phased array
- Antenna gets.
- Waveguide waveguide having the production and in particular the assembly of the waveguide antenna is simplified.
- the waveguide and the bottom plate can be frictionally and / or positively connected to one another via the waveguide profile and the baseplate profile, so that, in addition to the simplified assembly, a secure connection of the two individual parts is ensured with one another.
- the production of a waveguide antenna according to claim 1 is inexpensive.
- the waveguide according to claim 3 In a design of the waveguide according to claim 3, this can be easily mounted by placing from above on the bottom plate.
- the design of the structural elements as ribs according to claim 4 allows the coupling of the second mode by 90 ° relative to the first output mode rotated.
- the TEIO mode the radar wave another basic mode
- the TEOl mode are coupled out.
- the structural elements having a transverse axis are arranged obliquely such that their transverse axis and the longitudinal axis of the waveguide form an acute angle.
- a waveguide antenna according to claim 5 causes a rotation of the plane of symmetry of the decoupled second mode with respect to the guided in the waveguide first mode.
- a constructive superimposition of the radiated second mode can take place in only a few, and in particular in only one direction.
- non-periodic arrangement of structural elements of a waveguide antenna according to claim 7 undesirable, contrary to a direction of propagation against the radar wave fed into the waveguide in the first mode occurring constructive superimpositions can be suppressed.
- the non-periodic arrangement of the structural elements is also referred to as jittering.
- a targeted coupling of the power is improved by a guided in the waveguide radar wave in a first mode in a different second mode.
- the attachment of the waveguide on the bottom plate is further simplified.
- a further functional integration is provided by the fact that the structural elements on the bottom plate at the same time constitute a fastening means for the aufndden on the bottom plate waveguide with the waveguide profile.
- the radar wave is shielded, so that no power is radiated from the waveguide antenna in this area. In these areas, the wall currents occurring are low, which is why there the positive connection between the base plate and waveguide is defined.
- the structural elements themselves follows the radiation of the second mode, so that there the current density is increased. In these areas, the frictional connection between the waveguide and the bottom plate takes place.
- the frictional connection between the bottom plate and the waveguide is further improved.
- the design of the base plate according to claim 12 allows an improved mounting of the waveguide to the bottom plate.
- the design of the waveguide antenna according to claim 13 improves the flexibility in the production of bottom plate and waveguide. Such a production is cost-effective, especially with increased quantities of the waveguide antenna.
- the elasticity of the manufactured components is additionally increased, so that the frictional and / or positive mounting of the waveguide antenna is additionally simplified.
- a waveguide antenna according to claim 14 can be mounted easily and in particular automatically, whereby the manufacturing costs are further reduced.
- An arrangement according to claim 15 is particularly suitable for the mass production of waveguide antennas and in particular allows the simultaneous production of multiple waveguide antennas, so that the productivity of such a method additionally increased and thus the manufacturing costs are further reduced. Exemplary embodiments of the invention will be explained in more detail below with reference to the drawing. In this show:
- FIG. 1 shows a waveguide antenna with a bottom plate according to a first exemplary embodiment
- Fig. 2 is a sectional view in parallel to an x-z plane
- FIG. 3 is a perspective view of a bottom plate according to a further exemplary embodiment of a waveguide antenna according to FIG. 1, FIG.
- FIG. 4 is a perspective view corresponding to FIG. 1 of a waveguide antenna according to a further exemplary embodiment, FIG.
- FIG. 5 is a perspective view of a waveguide antenna according to another exemplary embodiment with a aufminden on a bottom plate waveguide in a non-connected state
- Fig. 6 is a sectional view in parallel to a y-z plane
- FIG. 7 shows a representation corresponding to FIG. 5 of the waveguide antenna in a connected state of waveguide and base plate, FIG.
- Fig. 8 is a sectional view in parallel to a y-z plane
- Sectional plane along the section line VIII-VIII in Fig. 7, 9 is an enlarged view of a connection of the waveguide to the bottom plate detail IX in FIG. 8,
- FIG. 10 shows a schematic illustration of a plurality of waveguide antennas according to a further exemplary embodiment with a waveguide, a base plate and a cover,
- 11 is a sectional view in parallel to a y-z plane
- FIG. 12 is a sectional view corresponding to FIG. 11 of a further exemplary embodiment with a cover applied to a plurality of waveguide antennas
- FIG. 13 is an enlarged detail view according to FIG. 12 showing the connection of the cover to the waveguide antennas and
- Fig. 14 is a sectional view corresponding to Fig. 11 of another embodiment of a waveguide antenna.
- the waveguide antenna 1 and 2 show a first exemplary embodiment of a waveguide antenna 1 for a radar antenna arrangement, which can be used in particular in motor vehicles for a distance determination and / or distance monitoring.
- the waveguide antenna 1 is integrated into the radar antenna arrangement in a manner known per se.
- the waveguide antenna 1 has a metallic waveguide 2, which extends in an x-direction and has a longitudinal axis 3 extending parallel to the x-direction.
- the waveguide 2 limits the propagation of a radar wave of a first mode in the x-direction of an interior space 4.
- the radar wave in the first mode propagates in the interior 4 with a waveguide wavelength ⁇ ! out.
- the waveguide antenna 1 is particularly suitable for guiding the fundamental mode TE10 in the waveguide 2.
- the waveguide 2 has a substantially U-shaped cross-section oriented in a z-direction that is perpendicular to the x-direction and has two symmetrically opposite side walls 5, which are of identical design.
- the side walls 5 have with respect to the vertical z-direction in each case a lower side wall portion 6 and integrally formed thereon upper side wall portion 7 having a greater wall thickness s 2 along a direction perpendicular to both the x-direction and z-direction y-direction has as a wall thickness sj of the lower side wall portion 6.
- the inner space 4 is tapered upwards along the z-direction.
- the waveguide 2 has an opening 8 at an upper end with a substantially rectangular outer contour, the TEIO mode of the radar wave propagating along the x-direction in the waveguide 2 can not emerge from the waveguide 2 via the opening 8. Thus, no power of the radar wave is radiated through the opening 8.
- the waveguide antenna 1 is formed with the waveguide 2 substantially symmetrically to a symmetry plane S parallel to the x-z plane.
- the waveguide 2 is fixedly connected at one of the opening 8 arranged opposite bottom with a bottom plate 9, for example by gluing or Angalvantician, so that the waveguide 2 down tight is completed.
- the bottom plate has a rectangular cross section and is adapted in shape to the waveguide 2.
- the waveguide 2 has a plurality of structural elements in the form of ribs 10 arranged in the x-direction and extending into the interior 4.
- the ribs 10 each have a transverse axis 11, which forms an acute angle with the longitudinal axis 3.
- the ribs 10 connect the two opposite side walls 5 and are integrally formed according to the embodiment shown in Figs. 1 and 2 to the side walls 5. It is also possible that the ribs 10 are produced independently of the side walls 5 and then connected to these.
- the ribs 10 serve to selectively decouple the guided in the waveguide 2 along the x-direction TEIO mode from the waveguide 2 by conversion to another mode, preferably in the TEO 1 mode.
- the radar wave propagates in the second mode with a waveguide wavelength ⁇ 2 , which is generally different from the waveguide wavelength ⁇ of the radar wave in the first mode.
- a symmetry plane of the TEIO mode is rotated 90 °, which is equivalent to having a symmetric TEIO mode field distribution along a transverse direction 12 parallel to the z direction an asymmetrical field distribution is converted along the transverse direction 12 of the TEO 1 mode.
- the ribs 10 with respect to a direction parallel to the x-direction propagation direction 13 of the radar wave TEIO mode unsymmetrical, ie obliquely arranged by the transverse axis 11 with the longitudinal axis 3 forms an acute angle.
- the TEO 1 mode becomes the waveguide in the xz plane 2 radiated.
- the emission direction of the TEO1 mode is in an angular range of ⁇ 20 ° about the z axis. If the TEOl mode is emitted from the waveguide 2, the radar wave again has the free space wavelength ⁇ 0 .
- the waveguide wavelength ⁇ 2 can be influenced such that it corresponds approximately to the free space wavelength ⁇ 0 .
- the ribs 10 are spaced from the waveguide 2 in the x-direction for the targeted conversion of the first mode, for example the TEIO mode, into a different second mode, for example the TEO1 mode, the radar shaft and for decoupling the second mode arranged to each other.
- the first mode for example the TEIO mode
- a different second mode for example the TEO1 mode
- the radar shaft and for decoupling the second mode arranged to each other.
- at least some adjacent ribs 10 may be arranged in the x-direction with a periodic distance d p to each other.
- adjacent ribs 10 have a non-periodic distance d ap in the x-direction, which deviates by less than 5% from the periodic distance d p according to the exemplary embodiment shown.
- the radiated radar wave in the TEO1 mode is structurally superimposed in only a few, and in particular in only one direction.
- d p periodic distance which is an integer multiple of the half waveguide wavelength corresponds to the radar wave in the first mode
- constructive overlays may occur, which counteract against the propagation direction 13 of the radar wave of the TEIO mode.
- the ribs 10 are arranged at least partially along the x-direction with slightly varying distances d ap from one another and thus non-periodically.
- the non-periodic distance d ap differs, in particular by less than 2% and in particular by less than 1% from that periodic distance d p .
- the distances d p and d ap are greater than half the free space wavelength ⁇ 0/2 of the radar wave.
- the waveguide wavelength can be smaller than the free space wavelength and the distance of the adjacent structural elements must be greater than half a waveguide wavelength ⁇ / 2 of the radar wave of the first mode, ie the TEIO-Mode.
- the ribs 10 have a rectangular cross-section oriented perpendicular to the transverse axis 11, a structural height H being constant along the transverse axis 11 of the ribs 10.
- FIG. 3 Structurally identical parts are given the same reference numerals as in the first embodiment, to the description of which reference is hereby made. Structurally different but functionally similar parts receive the same reference numerals with a following a.
- Each groove 10a has a rectangular cross section with a constant structural height H along the transverse axis 11a, the transverse axes 11a and the longitudinal axis 3 each enclosing an acute angle ⁇ .
- the grooves 10a are also arranged along the x-direction at periodic intervals d p and non-periodic distances d ap . It is also possible that the structural elements are provided in the form of ribs, not shown, on the bottom plate 9a, wherein these ribs protrude into the interior cavities of the waveguide.
- the structural elements are provided as ribs 10b on the waveguide 2b.
- the ribs 10b are designed as a two-step rib with respect to the transverse axis 1 lb.
- the ribs 10b are configured in two stages such that the ribs 10b along the x direction and with respect to the transverse axis Ib have a maximum structural height H max which, starting from the transverse axis 1 1b, is symmetrically stepped in both directions to a maximum structural height. height H max reduced structural height H 2 decreases.
- the T-shaped cross section of the rib 10b formed by the structural heights H 2 and H max also has constant structural heights H 2 , H max along the transverse axis I Ib.
- the ribs 10b are integrally formed on the waveguide 2, which is milled, for example, from a metallic block.
- the ribs 10b are arranged inclined with respect to the transverse direction 12, so that the transverse axes Ib and the longitudinal axis 3 of the waveguide 2b form an acute angle. Due to the two-stage design of the ribs 10b, it is possible on the one hand, the radar shaft with the second Decouple fashion from the waveguide 2b of the waveguide antenna lb while suppressing the so-called Gräting praise.
- the ribs 10b are provided on inner sides 14 of the oppositely disposed side walls 5b. Along the x-direction, the ribs 10b are arranged offset on the opposite side walls 5b, thereby ensuring the asymmetrical arrangement of the structural elements necessary for the conversion and decoupling of the TEIO mode into the TEO I mode.
- the cross section of the waveguide 2b and thus the interior 4b are designed substantially hourglass-shaped, in which the side walls 5b each have a directed towards the interior 4b bulge 15th
- Such a design of the waveguide 2b with the corresponding inner space 4b serves, on the one hand, for improved guidance of the TEIO mode fed in the x direction and, on the other hand, adjustment of a defined characteristic of the radiated TEO1 mode, both in its propagation direction and in its azimuthal direction ,
- the shaping of the characteristic of the radiated TEO 1 mode in the azimuthal direction can be improved by designing the cross section of the waveguide 2 b with the interior 4 b.
- the waveguide 2b For the beam shaping of the guided in the waveguide 2b radar wave in the TEIO mode in the transverse direction 12, the waveguide 2b has an opening 8b towards increasing cross-section. Due to its curved contour, this section of waveguide 2b is referred to as non-linear output taper 16.
- the two side walls 5b are integrally connected to one another via a rear wall 17. It is also possible that with the return wall 17 connected ends opposite ends of the side walls 5b, a so-called transition segment to the waveguide 2b connects. In this case, the side walls 5b are additionally connected by a front wall, not shown, having an opening for feeding in the radar shaft.
- FIGS. 5 to 9 Structurally identical parts receive the same reference numerals as in the first embodiment, the description of which reference is hereby made.
- Structurally different, but functionally similar parts receive the same reference numerals with a c.
- the exemplary embodiment shown here differs essentially from the exemplary embodiments described above in that the waveguide 2c can be frictionally and positively connected to the base plate 9c. It is also possible that the waveguide 2c with the bottom plate 9c is either non-positively or positively connected.
- the base plate 9c has a base plate profile 19 extending away from an upper side 18 of the base plate 9c, which cooperates with a corresponding waveguide profile 20 for the frictional and / or positive connection of the waveguide 2c to the base plate 9c.
- a base plate profile 19 extending away from an upper side 18 of the base plate 9c, which cooperates with a corresponding waveguide profile 20 for the frictional and / or positive connection of the waveguide 2c to the base plate 9c.
- the bottom plate profile 19 comprises the structural elements in the form of ribs 10c, which are arranged in the x-direction and extend into the internal space 4c and are formed as two-stage ribs symmetrical with respect to their transverse axis 11c.
- the ribs 10c are on the opposite side 5 c arranged along the x-direction and arranged as described above at periodic intervals d p and / or non-periodic distances d ap spaced from each other.
- the waveguide profile 20 is arranged at the lower, the bottom plate 9c facing the ends of the side walls 5c.
- the waveguide profile 20 comprises two mounting rows 21 arranged parallel to the x-direction and spaced apart from one another and having recesses 23 or fastening webs 24 corresponding to the ribs 10c and openings 22 arranged between spaced-apart ribs 10c.
- the waveguide profile 20 is located with an interior 4c facing the inside 25 on a side facing away from the interior 4c outside 26 of the bottom plate profile on.
- the fastening webs 24 of the Hohlleiterpro fils 20 engage in the openings 22 between adjacent ribs 10c.
- the waveguide 2c is positively connected to the bottom plate 9c in the x-direction.
- the openings 22 are open in the z-direction upwards, so that the waveguide 2c can be used with the fastening webs 24 from above against the z-direction in the openings 22.
- the waveguide antenna lc is made of plastic. By metallizing the plastic, the beam guidance is achieved in the waveguide antennas lc. Because the waveguide antenna 1c is made of plastic, the side walls 5c have an elasticity required for the mounting operation of the waveguide 2c on the bottom plate 9c. The elasticity of the side walls 5c is required because a distance y H of the attachment rows 21 on the oppositely disposed side walls 5c is smaller than an extension y B of the bottom plate profile 19 in the y direction.
- the side walls 5c are elastically bent away from each other by the ribs 10c of the bottom plate profile 19 and thus the inner space 4c is widened.
- the waveguide 2c is frictionally held on the bottom plate 9c, especially in the z-direction.
- the outer sides 26 are at least partially inclined relative to the upper side 18 of the bottom plate 9c and include an acute angle ⁇ .
- an undercut 27 is formed between the outer side 26 of the ribs 10c, into which the side wall 5c can engage with its lower end. This makes it possible that the waveguide 2c can be clipped onto the bottom plate 9c and thus detachably connected to the bottom plate 9c.
- the waveguide antenna 1c that is, both the waveguide 2c and the bottom plate 9c
- the waveguide antenna 1c are made of plastic
- FIGs. 5 to 9 there is shown an arrangement 28 having three waveguide antennas 1c, wherein the bottom plate 9c and the waveguide 2c are formed such that a plurality of waveguide antennas 1c are juxtaposed in the y-direction.
- FIGS. 10 and 11 Structurally identical parts are given the same reference numerals as in the first embodiment, to the description of which reference is hereby made. Structurally different, but functionally similar parts receive the same reference numerals with a d followed.
- the exemplary embodiment illustrated in FIGS. 10 and 11 corresponds to an arrangement of several shaft sections. terantenna ld, which are arranged side by side in the y-direction. For this purpose, a plurality of waveguide 2 d are arranged on the bottom plate 9 in the y-direction side by side. Furthermore, a cover 29 is placed on the waveguide 2d in each case in an opening 8d of the waveguide 2d.
- the cover 29 must ensure that radiation of the radar wave in the second mode in the transverse direction 12 is possible.
- the thickness D of the cover 29 in the transverse direction 12 depends on a wavelength of the radar wave in the medium ⁇ 1, the cover 29ab, which is can be determined from the free space wave length ⁇ 0 .
- the cover 29 is made of polytetrafluoroethylene, which is also known under the trade name Teflon, and has SiC as a damping material.
- Teflon polytetrafluoroethylene
- the waveguide 2d has an hourglass-shaped cross-section, wherein the side walls 5d each have a curvature 15 directed into the interior 4d.
- the cross section of the waveguide 2d thus changes in the direction of the z.
- the cover 29 rests flat against the output taper 16 which widens toward the opening 8d, ie the cover 29 lies at least partially flat against the bulges 15 of the side walls 5d. Overcoupling of the guided in the waveguide 2 d radar wave in the first mode in an adjacent waveguide 2 d is not affected.
- the arrangement 28e has a common, integrally formed cover 29e which extends at least partially into the upper openings 8e of the waveguide antennas le.
- the waveguide antennas le are arranged adjacent to each other and parallel to the x direction in the y direction, corresponding to the arrangement 28d according to the embodiment in FIGS. 10 and 11.
- the sidewalls 5e of adjacent waveguide antennas le are integrally formed with each other and include a sidewall cavity 36.
- the side walls 5e have, at an upper end facing the cover 29e, a groove 30 extending along the x-direction.
- the groove 30 has a rectangular cross-section perpendicular to the x-direction and serves to receive at least one catch projection 31 of the cover 29e for the latching connection of the cover 29e with the waveguide antennas le of the arrangement 28e.
- the latching projection 31 also extends in the x-direction and may, in particular, have the same length in the x-direction as the groove 30. It is also possible for several latching projections 31 to be arranged one behind the other along the x-direction.
- the latching projection 31 has a centrally arranged deformation slot 32, which is opened downwards towards the side walls 5e. Furthermore, the latching projection 31 has a width y R in the y-direction, which in the unassembled state of the cover 29 e on the arrangement 28 e is greater than a width b R of the groove 30 in the y-direction. Since the cover 29e is made of polytetrafluoroethylene, ie of plastic, it is elastically deformable, so that the cover 29e can be latched in the grooves 30 with the latching projections 31. In this case, the width y R of the latching projection is reduced by the latching projection 31 is compressed in the y-direction. This compression is made possible by the deformation slot 32.
- the widths b R of the groove 30 and y R of the latching projection 31 are identical.
- the groove 30 and the Rastvor- jump 31 are designed such that the cover 29e in the assembly 28e is securely, non-positively and simultaneously releasably held.
- the latching projection 31 has insertion bevels 33 and extension slopes 34 for easier assembly and disassembly of the arrangement 28e.
- the groove 30 serves to prevent the coupling of radar wave guided in a waveguide antenna into an adjacent waveguide antenna.
- Structurally identical parts receive the same reference numerals as in the first embodiment, to the description of which reference is hereby made.
- Structurally different, but functionally similar parts receive the same reference numerals with a following f.
- the waveguide antenna 1 f also has a cover 29 f, which, however, does not protrude into the interior 4 f of the waveguide 2 f.
- the cover 29f is thus similar to the bottom plate 9 formed flat with a rectangular cross-section.
- the bottom plate 9 and the cover 29f are respectively attached to a lower and upper end of the waveguide 2f in the z-direction.
- the attachment of bottom plate 9 and cover 29f on the waveguide 2f can be done for example by gluing or Angalvan expect.
- the cover 29f in the waveguide antenna lf acts as a waveguide for a part of the power to be radiated from the TEO1 mode.
- power from the TEOl mode to be radiated is coupled via the cover 29f into the TEO1 mode of a waveguide antenna adjacent in the y direction and converted at the rib structures into the TEIO mode guided in the adjacent waveguide becomes.
- This so-called crossover of radiated power from a waveguide antenna into a waveguide antenna adjacent thereto is reduced by the use of a cover of material with damping properties. Because of the small thickness D of the cover 29, 29e (see Fig. 10 to 13), the radiated from the TEOl mode in the z direction power is only slightly attenuated. However, the power coupled into the adjacent waveguide is much more attenuated because of the longer path length in the damping cover 29, 29e. Further reduction of the cross talk is achieved by the groove 30 according to the waveguide antenna le shown in Figs.
- a compact structure of a radar system based on the waveguide antenna according to the invention is specified.
- the radar system comprises, in addition to the antenna, a device for processing high-frequency signals, in particular for controlling the antenna or the generation of the signal to be radiated.
- a device for processing low-frequency signals to control the radar system and i.d.R. provided for data evaluation, a device for processing low-frequency signals.
- the components of a device for processing low-frequency signals are i.d.R. spatially greatly expanded.
- Some components e.g. Capacitors are not readily available in a flat design.
- FIG. 12 an example of an antenna arrangement is shown in which there is a space (36) between the antennas.
- components (37) are now arranged in the spaces (36) as shown in FIG.
- components (capacitors, circuit boards, etc.) are integrated in the bottom plate (9) in order to use the space efficiently.
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- Waveguide Aerials (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE112011100045T DE112011100045A5 (de) | 2010-03-31 | 2011-03-24 | Wellenleiterantenne für eine Radarantennenanordnung |
Applications Claiming Priority (2)
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DE201010013589 DE102010013589A1 (de) | 2010-03-31 | 2010-03-31 | Wellenleiterantenne für eine Radarantennenanordnung |
DE102010013589.5 | 2010-03-31 |
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WO2011120501A1 true WO2011120501A1 (de) | 2011-10-06 |
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PCT/DE2011/000306 WO2011120501A1 (de) | 2010-03-31 | 2011-03-24 | Wellenleiterantenne für eine radarantennenanordnung |
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WO (1) | WO2011120501A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3089176A1 (de) | 2016-03-04 | 2016-11-02 | Premo, S.L. | Langgestreckter flexibler induktor und langgestreckte flexible niederfrequenzantenne |
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US6917266B2 (en) * | 2000-10-11 | 2005-07-12 | Paul Mack | Microwave waveguide |
DE102008004940B4 (de) * | 2008-01-18 | 2017-08-24 | Adc Automotive Distance Control Systems Gmbh | Radarantennenanordnung sowie hiermit ausgestattetes Kraftfahrzeug |
-
2010
- 2010-03-31 DE DE201010013589 patent/DE102010013589A1/de not_active Withdrawn
-
2011
- 2011-03-24 DE DE112011100045T patent/DE112011100045A5/de not_active Ceased
- 2011-03-24 WO PCT/DE2011/000306 patent/WO2011120501A1/de active Application Filing
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US5572228A (en) | 1995-02-01 | 1996-11-05 | Physical Optics Corporation | Evanescent coupling antenna and method for the utilization thereof |
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EP3333860A1 (de) | 2016-03-04 | 2018-06-13 | Premo, S.L. | Magnetkernanordnung für einen flexiblen länglichen induktor und längliche und flexible niederfrequente antenne |
US10056687B2 (en) | 2016-03-04 | 2018-08-21 | Premo, S.L. | Flexible elongated inductor and elongated and flexible low-frequency antenna |
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DE112011100045A5 (de) | 2012-09-13 |
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