EP1769564A1 - Vorrichtung und verfahren zum senden/empfangen elektromagnetischer hf-signale - Google Patents
Vorrichtung und verfahren zum senden/empfangen elektromagnetischer hf-signaleInfo
- Publication number
- EP1769564A1 EP1769564A1 EP05726517A EP05726517A EP1769564A1 EP 1769564 A1 EP1769564 A1 EP 1769564A1 EP 05726517 A EP05726517 A EP 05726517A EP 05726517 A EP05726517 A EP 05726517A EP 1769564 A1 EP1769564 A1 EP 1769564A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna
- triangular
- sections
- antenna sections
- center
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000001465 metallisation Methods 0.000 claims description 2
- 229910000679 solder Inorganic materials 0.000 claims description 2
- 238000011161 development Methods 0.000 description 8
- 230000018109 developmental process Effects 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 230000005672 electromagnetic field Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000003071 parasitic effect Effects 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 238000004512 die casting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012811 non-conductive material Substances 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000005028 tinplate Substances 0.000 description 1
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 is operated in a frequency range between 1 to 5 GHz.
- Antennas for equipment tuned for detection of objects such as pipes in walls are generally for transmission and / or
- a known antenna in planar design is known from DE 101 04 863 Al.
- This known planar antenna can be f mitxierbar with high mechanical stability on a circuit board 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 is 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. Advantages of the invention
- the inventive device for transmitting / receiving electromagnetic RF signals with the features of claim 1 and the method for
- Transmission / reception of electromagnetic RF signals with the features of claim 11 has the advantage over the known approach that measurement data in two mutually orthogonal directions can be obtained by means of the antenna in order to better detect measured objects.
- 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 ensured, the arrangement is mechanically very stable.
- the idea on which the present invention is based essentially consists in diametrically opposing 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.
- an apparatus for transmitting / receiving electromagnetic RF signals comprising: 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 support device substantially perpendicular to the antenna axis, wherein in each case the triangular tips of the triangular antenna sections, which of the Going out center, at least partially 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 two diametrically opposite Antennenäbitese form an antenna element.
- Essentially triangular antenna sections which preferably taper in a rectangular web, a predetermined curvature in the direction of the carrier device, in particular a multilayer printed circuit board, and open at this substantially perpendicular to the electrically isolated from each other RF signal terminals.
- the surface of the at least four substantially triangular antenna sections is at least partially flat or convex or concave and / or wavy or stepped, wherein a
- Transition region which preferably at least partially perpendicular to the antenna axis, is 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 on a side opposite to the triangular point.
- 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 substantially triangular antenna sections form a square or a rectangle as a polygon, wherein the RF signal connections 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.
- 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.
- Support means a radome provided as a cover over the at least four substantially triangular antenna sections, wherein the antenna device is preferably mounted movably on wheels 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 casting, 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 substantially triangular antenna sections are electrically connected to the RF signal terminals of the carrier device via solder contact bars or conductive adhesive contacts. This advantageously results in a cost-effective and easy installation.
- Fig. 1 is a schematic oblique top view of a transmitting / receiving apparatus for explaining a first embodiment of the present invention
- FIG. 2 shows a schematic cross-sectional view of a transmitting receiving device for explaining an embodiment of the present invention
- FIG. 4 and 5 is a schematic oblique top view and bottom view, respectively, of a transmitting / receiving apparatus for explaining another embodiment of the present invention
- FIG. 6 is a schematic plan view of an antenna section for explaining an embodiment of the present invention
- FIG. 7 shows a schematic oblique top view of the device according to FIG. 6 in the bent state
- FIG. 7 shows a schematic oblique top view of the device according to FIG. 6 in the bent state
- FIG. 8 is a schematic oblique top view of a transmitting receiving device for explaining another embodiment of the present invention.
- FIGS. 9 and 10 show a schematic oblique top view and bottom view, respectively, of a transceiver for explaining another embodiment of the present invention.
- FIG. 11 is a schematic oblique top view of a transmitting receiving device for explaining another embodiment of the present invention.
- four essentially identical, electrically conductive, essentially triangular antenna sections 10 are arranged in such a way that they form a square in plan view with triangular points 12 located 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 formed, e.g. made 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
- Fig. 2 is a comparable to Fig. 1 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.
- 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 are preferably in the
- the radius of curvature between the antenna sections 10 which run obliquely in the cross-section according to FIG. 2 and the triangular tips 12 which open perpendicularly to the carrier device 15 in the region of the carrier device is designed such that radar waves can easily come off.
- the funnel shape can be seen between two diametrically opposite antenna sections 10, an antenna axis 14 extending in the region of the center 11.
- the carrier device 15 is preferably a multi-layer or multi-layer printed circuit board which has a continuous shielding plane (not shown in FIG. 2), wherein the shielding plane is preferably electrically conductively connected to the shielding walls 13.
- the antenna In the configuration according to FIG. 3, only one antenna element consisting of the essentially triangular antenna sections 10 and the screen walls 13 together with the transition section 18 is 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 preferably consists of a cuboid housing with four inner RF signal terminals 15 'according to FIGS. 1 and 2.
- 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 Sehirmwand 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 transmitting device 4 has symmetry planes, a horizontal plane, a vertical plane and planes lying at an angle of 45 ° in plan view of the configuration according to FIG.
- the transmitting device 4 has symmetry planes, a horizontal plane, a vertical plane and planes lying at an angle of 45 ° in plan view of the configuration according to FIG.
- 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 an 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 is in the shielded space between the carrier device 15 and antenna sections 10 and
- Umbrella walls 13 have no Maximas. Then such recesses have no negative impact on the top outward peeling electromagnetic waves.
- 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.
- 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 is also possible.
- a maximum horizontal and / or vertical installation geometry of the transceiver can be taken into account and adjusted within certain limits.
- 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 range.
- antenna characteristics can be modified and, in particular, the emission characteristic can be adapted.
- the required for a lower target frequency dimension by appropriate
- Recesses 16 to reduce.
- the recesses 16 according to FIGS. 4 and 5 which are located at the two exposed edges of the antenna section 10 in the upper and middle region, the lower limit 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 in the embodiments according to FIGS. 4 and 5 are preferably produced from die-cast aluminum and have formations 20 with fastening holes, by means of which the transmitting / receiving device on the carrier device 15 is mechanically and / or electrically connected.
- the axles 19 are used for the rigid connection of external wheels (not shown), with the aid of which the transmitting / receiving device can be moved in parallel over surfaces. To save space these axes 19 are preferably within the
- 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 removal or distribution required for operating the transceiver device advantageously takes place 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 aluminum die-cast
- the transmitting / receiving antenna is screwed onto the carrier device 15 or a conductor or ground potential plate via the co-molded or injection-molded mounting holes 20 according to FIGS. 4 and 5.
- the four RF terminal contacts 15 ' are either soldered to the triangular tips 12 or glued with conductive adhesive.
- the transmitting / receiving antenna is screwed onto the carrier device 15 or a conductor or ground potential plate via the co-molded or injection-molded mounting holes 20 according to FIGS. 4 and 5.
- the four RF terminal contacts 15 ' are either soldered to the triangular tips 12 or glued with conductive adhesive.
- Antennas are mounted in any direction.
- the diametrically opposed antenna sections 10 which can be controlled independently of one another by the RF signal connections 15 'can thus transmit / receive two orthogonal polarizations.
- FIG. 6 shows a substantially triangular antenna section 10 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 Einitatiöffhung 23.
- the single sheet 10 'on a support means 15 mechanically and / or electrically connected.
- Fig. 7 the single sheet 10 'shown in FIG. 6 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.
- This unit can then be soldered, for example, in a support plate 15, preferably a printed circuit board become.
- a stable transmitting / receiving device is provided comparable to that described with reference to FIG.
- the arrangement of FIG. 9 is shown in bottom view without support means.
- FIG. 8 four individual sheets 10 'according to FIG. 7, ie already bent, are 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 Runststofihalter 24 is particularly advantageous if it serves at the same time as a function carrier or holder for other elements, such as low-frequency coil carrier to the transmitting ZEmpfangsvorraum.
- 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
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004032175A DE102004032175A1 (de) | 2004-07-02 | 2004-07-02 | Vorrichtung und Verfahren zum Senden/Empfangen elektromagnetischer HF-Signale |
PCT/EP2005/052359 WO2006003059A1 (de) | 2004-07-02 | 2005-05-24 | Vorrichtung und verfahren zum senden/empfangen elektromagnetischer hf-signale |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1769564A1 true EP1769564A1 (de) | 2007-04-04 |
EP1769564B1 EP1769564B1 (de) | 2008-10-15 |
Family
ID=34968201
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05726517A Not-in-force EP1769564B1 (de) | 2004-07-02 | 2005-05-24 | Vorrichtung und verfahren zum senden/empfangen elektromagnetischer hf-signale |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080258975A1 (de) |
EP (1) | EP1769564B1 (de) |
JP (1) | JP4171048B2 (de) |
DE (2) | DE102004032175A1 (de) |
WO (1) | WO2006003059A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005062874A1 (de) * | 2005-12-29 | 2007-07-05 | Robert Bosch Gmbh | Vorrichtung zum Senden und/oder Empfangen elektromagnetischer HF-Signale |
DE102008041651A1 (de) | 2008-08-28 | 2010-03-04 | Robert Bosch Gmbh | Elektrogerät |
DE102011088435A1 (de) * | 2011-12-13 | 2013-06-13 | Robert Bosch Gmbh | Handwerkzeugvorrichtung mit zumindest einer Ortungsantenne |
US9755295B2 (en) * | 2012-05-01 | 2017-09-05 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Antenna configured for use in a wireless transceiver |
EP3979413A4 (de) * | 2019-09-09 | 2023-01-25 | Rosenberger Technologies Co., Ltd. | Miniaturisiertes antennenelement mit hoher verstärkung und antenne |
Family Cites Families (12)
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 (de) * | 1985-02-28 | 1989-05-10 | Gallaher Limited | Druckfarben und damit gedruckte Substrate |
FR2751471B1 (fr) * | 1990-12-14 | 1999-02-12 | Dassault Electronique | Dispositif rayonnant a large bande susceptible de plusieurs polarisations |
CA2240114A1 (en) * | 1997-07-03 | 1999-01-03 | Thomas P. Higgins | Dual polarized cross bow tie dipole antenna having integrated airline feed |
DE10196280T5 (de) * | 2000-05-31 | 2004-08-26 | Bae Systems Information And Electronic Systems Integration Inc. | Schmalbandige, symmetrische, gekreuzte, zirkular polarisierte mäanderleitungsbelastete Antenne |
US6608600B2 (en) * | 2001-05-03 | 2003-08-19 | Radiovector U.S.A., Llc | Single piece element for a dual polarized antenna |
DE10203873A1 (de) * | 2002-01-31 | 2003-08-14 | Kathrein Werke Kg | Dualpolarisierte Strahleranordnung |
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 |
-
2004
- 2004-07-02 DE DE102004032175A patent/DE102004032175A1/de not_active Withdrawn
-
2005
- 2005-05-24 EP EP05726517A patent/EP1769564B1/de not_active Not-in-force
- 2005-05-24 US US11/631,225 patent/US20080258975A1/en not_active Abandoned
- 2005-05-24 JP JP2006523643A patent/JP4171048B2/ja not_active Expired - Fee Related
- 2005-05-24 WO PCT/EP2005/052359 patent/WO2006003059A1/de active Application Filing
- 2005-05-24 DE DE502005005706T patent/DE502005005706D1/de active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2006003059A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE502005005706D1 (de) | 2008-11-27 |
EP1769564B1 (de) | 2008-10-15 |
DE102004032175A1 (de) | 2006-01-19 |
JP4171048B2 (ja) | 2008-10-22 |
JP2006528473A (ja) | 2006-12-14 |
US20080258975A1 (en) | 2008-10-23 |
WO2006003059A1 (de) | 2006-01-12 |
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