EP2319124B1 - Appareil électrique - Google Patents

Appareil électrique Download PDF

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Publication number
EP2319124B1
EP2319124B1 EP09782019.5A EP09782019A EP2319124B1 EP 2319124 B1 EP2319124 B1 EP 2319124B1 EP 09782019 A EP09782019 A EP 09782019A EP 2319124 B1 EP2319124 B1 EP 2319124B1
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EP
European Patent Office
Prior art keywords
antenna unit
locating device
signal
polarization direction
antenna
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.)
Active
Application number
EP09782019.5A
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German (de)
English (en)
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EP2319124A1 (fr
Inventor
Reiner Krapf
Heiko Braun
Tobias Zibold
Christoph Wieland
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
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Filing date
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Publication of EP2319124A1 publication Critical patent/EP2319124A1/fr
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Publication of EP2319124B1 publication Critical patent/EP2319124B1/fr
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    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

Definitions

  • the invention is based on a hand-held locating device according to the preamble of claim 1.
  • an electrical appliance in particular a locating device, known with an LCR antenna device which has an antenna unit with a first polarization direction and which is provided for transmitting and / or receiving a measuring signal with the first polarization direction.
  • From the US 2001/0033607 A1 is a stationary device and circuit for locating transceivers in the field of radio communication means known.
  • the system of US 2001/0033607 A1 uses an antenna array with an LCR antenna on the order of about 30 cm, using a broadband spectrum to locate the transceivers.
  • the antenna device has the US 2001/0033607 A1 an LCR antenna element in the form of a flat, square plate, which emits a measuring signal with two polarization planes, which are arranged at an angle of 90 ° to each other.
  • the connection of the radiator element to the signal generating circuit is effected by four, substantially dreickförmige sections which are electrically contacted at its pointed side with the circuit board of the signal generating circuit.
  • the invention relates to an electrical appliance, a hand-held locating device, with an LCR Antennenvorrichung, which has an antenna unit with a first polarization direction and which is provided for transmitting and / or receiving a measuring signal with the first polarization direction.
  • the antenna unit has at least one second polarization direction for emitting and / or receiving the measurement signal.
  • the term “proposed” should be understood to mean in particular specially equipped and / or specially designed.
  • an “LCR antenna device (large-current radiator antenna device)” should be understood to mean an antenna device which has a radiating element through which a large current flows during operation Antenna unit aligned symmetrically with respect to a plane of symmetry, wherein the plane of symmetry is aligned perpendicular to the radiating element.
  • the antenna unit is advantageously at least partially formed of a corrosion-resistant metal sheet, in particular of a bent metal sheet, such as a metal sheet of stainless steel and / or a galvanized and / or a gold-plated sheet, etc.
  • a design of the antenna unit as a plastic body is conceivable, wherein Surfaces and / or subregions, in particular for the conduction of signals, are at least partially metallized, wherein a specific dielectric constant of the plastic body is to be considered in a construction and / or calculation of the antenna unit.
  • a "measurement signal” should be understood to mean, in particular, an electromagnetic signal which is preferably formed by a broadband signal, in particular by an ultrabroadband signal (or ultra wide band signal or UWB signal), the ultra wideband signal having a useful frequency range with a center frequency in the frequency range of 1 GHz to 15 GHz and a frequency bandwidth of at least 500 MHz.
  • the ultra-wideband signal particularly advantageously has a spectral power density of -41.3 dBm / MHz at most.
  • signals or electromagnetic waves can be received at least partially independently of their direction of polarization.
  • the emission of the measurement signal can take place independently of receiving a measurement signal in that the emission along the first polarization direction and the reception along the second polarization direction can take place.
  • the electrical appliance is formed by a hand-held locating device, which is provided for locating an object arranged in an examination subject.
  • the received measurement signal is formed by a reflection signal which is reflected by the object and / or the examination subject.
  • the first polarization direction is aligned substantially orthogonal to the second polarization direction.
  • substantially orthogonal is meant in particular a direction perpendicular to the first polarization orientation of the second polarization direction with a maximum deviation of 20 °, preferably of at most 10 ° and more preferably of at most 1 °.
  • signals or waves with different polarization direction and / or circular and / or elliptically polarized signals or waves can be emitted.
  • linearly polarized waves can be emitted at any angle to one of the two polarization directions. This can be used particularly advantageously with locating devices, since here electromagnetic Waves are only reflected by anisotropic objects and thus objects of a homogeneous object of investigation, such as an isotropic wall surface, can be advantageously distinguished or recognized as such.
  • the LCR antenna device has at least two first connection elements, which are provided for feeding in a signal of the first polarization direction, and at least two further connection elements, which are provided for feeding in a signal of the second polarization direction.
  • different signals for the two directions of polarization can be introduced into the antenna unit, such as mutually phase-shifted signals and / or signals having different amplitudes, etc.
  • signals to be transmitted and received signals along the two different polarization directions can be fed separately from the antenna element or removed therefrom become.
  • a signal of the same amplitude phase-shifted by 180 ° with respect to a signal of the further connection element of the polarization direction is applied to one of the connection elements of one of the polarization directions in at least one operating mode.
  • a potential equal to zero can advantageously be achieved at a plane of symmetry between the two connection points, the two further connection elements of the second polarization direction being arranged in the plane of symmetry, and thus the two polarization directions or signals of the two polarization directions being linearly independent of each other.
  • advantageously circular or elliptical polarized waves can be emitted by means of the antenna unit.
  • the two polarization directions are phase-shifted or they have different amplitudes.
  • a locating device proposed with an LCR antenna device, which has a mass surface element and an antenna unit which comprises a first polarization direction and four lower conductor elements and which provides for transmitting and / or receiving a measurement signal with the first polarization direction wherein a distance of the conductor elements to the mass surface element increases continuously along a direction from a respective connection element of the conductor elements to a region of the conductor elements facing away from the connection elements.
  • a shortest distance to the mass surface element which is smaller than a shortest distance between further components of the antenna unit, and which in particular has a connection element to a supply line of a signal.
  • a “mass surface element” should be understood to mean, in particular, an element which is arranged substantially parallel to a radiating element of the antenna unit and preferably in a region adjacent to the antenna unit to shield signals and / or waves and / or particularly advantageously to a reflection of signals and / or waves in a desired emission direction, which are emitted by the antenna unit in an undesired direction, in particular in the direction of the mass surface element. It can be advantageous at least partially a continuous transition from a low characteristic impedance, such as a characteristic impedance of 50 ⁇ in components and lines of high-frequency circuits, in a high characteristic impedance, such as a characteristic impedance of 377 ⁇ for a radiation space of the antenna unit. In addition, in this case abrupt steps in the lower conductors can be avoided and consequently reflections of an electromagnetic wave in the antenna unit can at least be reduced or prevented.
  • Signals or waves are conducted from the connection elements to lateral conductor elements of the antenna unit and from these to the emission element of the antenna unit during operation of the electrical appliance via the lower conductor element.
  • a particularly advantageous continuous transition from the low characteristic impedance into the high characteristic impedance can be achieved if the two lower conductor elements have a width which increases along the direction.
  • the lower conductor elements are symmetrical, in particular trapezoidal, formed.
  • a locating device with an LCR antenna device which has an antenna unit with a first polarization direction and which is provided for transmitting and / or receiving a measuring signal with the first polarization direction, is proposed, wherein the LCR antenna device a the antenna unit has a surrounding enclosure in at least one direction, which forms a cavity around the antenna unit.
  • the sheath surrounds the antenna unit along a circumferential direction of a radiating element, wherein the sheath is preferably arranged at a distance from the antenna unit, so that between the antenna unit and the sheath, the cavity or a free space is formed, in particular Signals and / or waves can be advantageously deflected in a desired direction.
  • the envelope is formed at least partially from a conductive material.
  • the envelope may in this case be formed from a metal and / or be formed from a plastic body with a metallic coating and / or be formed from a conductive plastic material which has, for example, metal-like properties.
  • the sheath has at least one induction coil, whereby additional metallic and / or conductive components and / or elements of the sheath can be saved.
  • the induction coil can be used as an inductive sensor, so that in addition to a detection by means of the antenna unit, a detection of objects, in particular metallic objects, can advantageously be achieved in the examination subject.
  • the envelope has a shape which is aligned symmetrically with respect to at least one plane of symmetry of the antenna unit, whereby a negative influence on a signal emission and / or a reception of a signal along the polarization direction of the antenna unit can be advantageously prevented.
  • the antenna unit has two planes of symmetry, wherein the envelope is arranged in particular rotationally symmetrical with respect to the two planes of symmetry.
  • the enclosure may have an octagonal cross section, so that a particularly space-saving installation of the LCR antenna device can be achieved.
  • a locating device with an LCR antenna device which has an antenna unit with a first polarization direction and which is provided for transmitting and / or receiving a measurement signal with the first polarization direction, is proposed, wherein the LCR antenna device a Holding element which is provided for fixing the antenna unit, in particular in the electrical appliance.
  • the holding element is formed from a plastic, so that a polarization direction of the antenna unit by the holding element remains substantially unaffected.
  • the retaining element is screwed to a housing of the electrical appliance and secured to the antenna unit by means of plastic pins.
  • the retaining element may be glued to the antenna unit, jammed, etc.
  • An attachment of the retaining element to the antenna unit is preferably carried out in a region and / or at a position of the antenna unit, which contribute to a preferably low degree to a particular high-frequency radiation, such as in areas with a low current flow.
  • the locating device has a guide unit with a travel direction, wherein the holding element arranges the antenna unit with an angle of a plane of symmetry of the antenna unit to the direction of travel of approximately 45 °.
  • a "guide unit” should be understood to mean, in particular, a unit which is provided for guiding the locating device on a surface of the examination object or at a distance from the surface of the examination subject.
  • the tracking device is guided in a plane parallel to the surface of the examination subject.
  • a "travel direction” should be understood to mean, in particular, a direction along which the locating device is preferably moved on or parallel to a surface of the examination object, in particular by an operator of the locating device.
  • the direction of travel may in this case be dependent on a rolling direction of rolling bodies of the guide unit and / or on a preferred, in particular a horizontal hand movement direction, which is preferably aligned perpendicular to a gravitational force and / or parallel to a bottom surface. It can be achieved by this embodiment advantageously an alignment of about 45 ° one or more planes of symmetry and / or polarization directions to an object to be detected, and thereby an advantageous separation of the transmission signal and the received signal can be achieved.
  • the transmission signal can be radiated along a first polarization direction and a direction of polarization oriented orthogonally to the first polarization direction can be used to receive a signal reflected by the object, in which case the emitted signal experiences a polarization rotation during reflection.
  • the retaining element is provided for receiving a sheathing of the antenna unit. It is also proposed that the retaining element has recesses which are provided for guiding connecting elements of the antenna unit. In this case, a structurally simple mounting of the LCR antenna device can be achieved, namely by the connection elements can be guided through the recesses and then soldered to a circuit board.
  • FIG. 1 an electric appliance 10 formed by a hand-held locating device 12 is shown.
  • the locating device 12 is provided for locating objects 74, such as conduits, etc., in an examination subject 76, such as a wall ( FIG. 2 ).
  • the locating device 12 is movable by an operator via a surface 78 of the object under examination 76, such as a wall surface, along a preferred travel direction 68.
  • the locating device 12 has a guide unit 66, by means of which the locating device 12 can be moved by an operator on the surface 78.
  • the preferred travel direction 68 is oriented substantially perpendicular to a weight force acting on the locating device 12 and substantially corresponds to a pivoting movement of an arm of the operator.
  • the locating device 12 has a locating unit 80, which is provided for transmitting and receiving a measuring signal 48.
  • the measuring signal 48 is in this case formed by an ultrabroadband signal.
  • the ultra-wideband signal is generated by the locating unit 80, which for this purpose has a signal generating unit, not shown, and radiated via an LCR antenna device 14 of the locating device 12.
  • the LCR antenna device 14 is provided in addition to a radiation of the measurement signal 48 or the ultra wide band signal for receiving the reflected from the object under examination and / or from the object 74 ultrabroadband signal.
  • the LCR antenna device 14 has an antenna unit 16 with a first polarization direction 18 for transmitting and / or receiving a measurement signal 48.
  • the antenna unit 16 has a second polarization direction 20 for emitting and / or receiving the measurement signal 48.
  • the antenna unit 16 is formed in one piece and formed by a bent sheet-metal component 82 (FIG. FIG. 3 ).
  • a thickness of the sheet metal member 82 is formed so as to prevent an undesirable skin effect that reduces a radiation characteristic of the antenna unit 16.
  • the antenna unit 16 has a radiating element 84, four lateral conductor elements 86, 88, 90, 92 and four lower conductor elements 32, 34, 36, 38, each having a connection element 22, 24, 26, 28.
  • the radiating element 84 is square with four equal sides 94 formed and symmetrical with respect to two planes of symmetry 58, 60, which are perpendicular to the radiating element 84 and perpendicular to each other.
  • one of the four lateral conductor elements 86, 88, 90, 92 adjoins each of the four sides 94 of equal size, each having a first partial surface element 96, which is trapezoidal in shape and inclined with respect to the emission element 84.
  • the trapezoidal first partial surface elements 96 extend tapered away from the radiating element 84, wherein a side length 100 of the radiating element corresponds to a large baseline length 98 of the trapezoidal first partial surface elements 96.
  • the lateral conductor elements 86, 88, 90, 92 also have a second, rectangular partial surface element 102, which adjoins the first trapezoidal partial surface element 96 of the lateral conductor elements 86, 88, 90, 92.
  • a width 104 of the second rectangular partial surface elements 102 corresponds to a small baseline length 106 of the trapezoidal first partial surface elements 96.
  • the second, rectangular partial surface elements 102 are arranged on a side of the first trapezoidal partial surface elements 96 facing away from the radiating element 84.
  • a surface normal vector 108 of the second rectangular partial surface elements 102 is aligned substantially perpendicular to a surface normal vector 110 of the radiating element 84.
  • the four lower conductor elements 32, 34, 36, 38 which are likewise trapezoidal in shape, adjoin the four lateral conductor elements 86, 88, 90, 92 ( Figures 3 and 5 ).
  • the four lower conductor elements 32, 34, 36, 38 each extend along a direction 112 from the side conductor element 86, 88, 90, 92 directly adjoining the respective lower conductor element 32, 34, 36, 38 to the opposite lateral conductor element 86 , 88, 90, 92, so that the four lower conductor elements 32, 34, 36, 38 are arranged crosswise converging.
  • the four lower conductor elements 32, 34, 36, 38 are each arranged spaced apart along the direction 112 of the opposite lower conductor element 32, 34, 36, 38, so that in a central region 114 between end regions 116 of the lower conductor elements 32, 34, 36, 38, which are facing away from the four lateral conductor elements 86, 88, 90, 92, a free space 118 is present.
  • a width 46 of the lower conductor elements 32, 34, 36, 38 steadily decreases along the direction 112.
  • the four lower conductor elements 32, 34, 36, 38 also have an inclination relative to the emission element 84, wherein a shortest distance 120 of the lower conductor elements 32, 34, 36, 38 increases along the direction 112 with respect to an extension plane of the emission element 84 ( FIG. 4 ).
  • the four lower conductor elements 32, 34, 36, 38 comprise the four connection elements 22, 24, 26, 28, which are each formed by a connection pin.
  • the four connection pins extend along a direction 122, which is aligned substantially parallel to the surface normal vector 110 of the emission element 84 and, in addition, from the emission element 84 to the lower conductor elements 32, 34, 36, 38.
  • the LCR antenna device 14 has a mass surface element 30 which is aligned parallel to the emission element 84 ( FIGS. 3 and 4 ).
  • the mass surface element 30 is provided for signals emitted by the antenna unit 16 or waves in the direction of the mass surface element 30 to reflect and thus redirect in a desired emission direction.
  • the mass surface element has four recesses 124, through which the four connection elements 22, 24, 26, 28 are guided.
  • a distance 40 of the lower conductor elements 32, 34, 36, 38 to the mass surface element 30 along a direction 42 from a respective connection element 22, 24, 26, 28 of the lower conductor element 32, 34, 36, 38 to a respective connection element 22, 24th , 26, 28 remote area 44 of the conductor elements 32, 34, 36, 38 increases steadily.
  • the four connection elements 22, 24, 26, 28 are provided for supplying a signal, wherein two first connection elements 22, 26 associated with the first polarization direction 18 and the two further connection elements 24, 28 of the second polarization direction 20 are assigned.
  • the connection elements 22, 24, 26, 28 assigned to one polarization direction 18, 20 are arranged on lower conductor elements 32, 34, 36, 38 which are opposite one another.
  • the antenna element 16 may also be formed by a continuous, continuously bent sheet-metal component, so that the individual conductor elements 32, 34, 36, 38, 86, 88, 90, 92 steplessly merge into one another can.
  • an electromagnetic wave is radiated essentially via the emission element 84, wherein a signal supply via the connection elements 22, 24, 26, 28, the lower conductor elements 32, 34, 36, 38 and the lateral conductor elements 86, 88 , 90, 92 to the radiating element 84.
  • a differential signal is applied to each of the connection elements 22, 24, 26, 28 of a polarization direction 18, 20.
  • the two polarization directions 18, 20 each extend between two opposite sides 94 of the emission element 84 and are oriented perpendicular to one another.
  • a signal is supplied to one of the two connection elements 22, 24, 26, 28 for a polarization direction 18, 20, which has an equal amplitude as one on the further connection element 22, 24, 26, 28 for the same polarization direction 18, 20 supplied signal.
  • the two signals are also mutually phase-shifted by 180 °.
  • a potential equal to zero is applied to one of the planes of symmetry 58, 60 between the two connection elements 22, 24, 26, 28, the two further connection elements 22, 24, 26, 28 of the second polarization direction 18, 20 in FIG this symmetry plane 58, 60 are arranged.
  • the signals of the first polarization direction 18, 20 are linearly independent of the signals of the second polarization direction 18, 20.
  • measuring signals 48 are emitted during operation of the locating device 12 along one of the two polarization directions 18, 20 and received along the other polarization direction 18, 20 from the object 74 and the object under investigation 76 reflected measurement signals 48 .
  • circularly or elliptically polarized electromagnetic waves can be emitted, for which purpose the signals of the two polarization directions 18, 20 must be out of phase with each other or have a different amplitude .
  • linearly polarized electromagnetic waves can be radiated, the plane of polarization of which can assume an arbitrary angle with respect to the two planes of symmetry 58, 60.
  • a characteristic impedance is continuously changed during operation, such as 50 ⁇ for components of High frequency circuits to 377 ⁇ for a free space in which the antenna unit 16 radiates.
  • waves radiated by the lower conductor elements 32, 34, 36, 38 are advantageously conducted outward between the mass surface element 30 and the lower conductor elements 32, 34, 36, 38 and are subsequently deflected in a radiation direction.
  • the LCR antenna device 14 also has an enclosure 52 surrounding the antenna unit 16, which forms a cavity 54 around the antenna unit 16 and which is provided with an undesired lateral radiation which is perpendicular to the surface normal vector 110 of the radiation element 84, the antenna unit 16 to reduce or prevent.
  • the cladding 52 in this case surrounds the antenna unit 16 along a direction 50 formed by a circumferential direction, which is perpendicular to the surface normal vector 110 of the radiating element 84 and aligned therewith, so that an efficiency of radiation of waves or signals along the surface normal vector 110 of the radiating element 84 is increased, wherein the sheath 52 deflects laterally radiated signals and / or waves advantageous in the desired direction of emission or reflected.
  • the sheath 52 is spaced from the antenna unit 16 disposed thereabout.
  • the sheath 52 has a shape 56 or arrangement which is aligned symmetrically with respect to the two planes of symmetry 58, 60 of the antenna unit 16.
  • the sheath 52 has a plastic base body 126 with an octagonal cross-section, which is connected to the antenna unit 16.
  • the enclosure 52 is partially formed of a conductive material and for this purpose has three induction coils 62, which are arranged around the plastic base body 126, wherein the plastic base body 126 serves as a carrier element of the induction coils 62, which thus likewise have an octagonal cross-section.
  • the envelope 52 has a height substantially equal to a distance of the radiating element 84 from the mass surface element 30 ( FIG. 6 ).
  • objects 74 are detected in the object under examination 76 during operation, in that these detect, in particular, metallic objects 74 as such.
  • the plastic base body 126 of the sheath 52 is additionally designed as a holding element 64, which is provided for fixing the LCR antenna device 14 in the locating device 12 ( FIGS. 6 to 8 ).
  • the antenna unit 16 is arranged at an angle 70 of 45 ° to a plane of symmetry 58, 60 of the antenna unit 16 to the travel direction 68 of the guide unit 66 or to a longitudinal axis 128 of the locating device 12 ( FIG. 1 ).
  • the locating device 12 advantageously emitted signals or waves from an object 74, which preferably has an angle of substantially 45 ° to one of the planes of symmetry 58, 60 are reflected, in which case a polarization of the reflected signal rotates, so in that signals or waves are radiated along a first polarization direction 18, 20 of the emission element 84 and signals or waves are received along the second polarization direction 18, 20 of the emission element 84.
  • the retaining element 64 has four retaining struts 130, wherein two retaining struts 130 are arranged along a direction 142 of the sheath 52 inwardly converging and aligned orthogonal to the two further retaining struts 130.
  • the retaining struts 130 have a height which corresponds to a distance of a surface of the emission element 84 facing the mass surface element 30 from a side of the mass surface element 30 facing the emission element 84.
  • Each of the holding struts 130 has a pin 132 which is provided for fixing the emitting element 84 to the holding struts 130 ( FIGS. 7 and 8 ).
  • the radiating element 84 has four pot-shaped depressions 134 on a surface 144 facing away from the mass surface element 30, each having a centrally arranged recess 136, wherein the recess 136 has a smaller cross section than a cross section of the depression 134 (FIG. Figures 3 . 5 to 7 ).
  • the recesses 134 are each arranged in a region 138 of the radiating element 84, in which small currents flow and thus an impairment of radiation can be minimized. These areas 138 can be determined by means of a simulation calculation. These areas 138 are respectively arranged in an edge area and a corner area along diagonals of the emission element 84.
  • the pins 132 of the retaining struts 130 are guided to fix the antenna unit 16 through the recesses 136 of the emission element 84 and then caulked or broadly pressed with the emission element 84.
  • the holding element 64 to a guide of the connection elements 22, 24, 26, 28, a ring member 146 which has four recesses 72.
  • the ring element 146 is disk-shaped and integrally formed with the four retaining struts 130, so that an advantageous stability of the retaining struts 130 and a fixation of the connecting elements 22, 24, 26, 28 is achieved.
  • the ring element 146 has a central radius 148, which corresponds to half a distance from opposing connection elements 22, 24, 26, 28.
  • the ring element 146 also allows a simple attachment, such as a soldering, the connection elements 22, 24, 26, 28 with another component, such as a circuit board ( FIG. 8 ).
  • the holding element 64 For fastening the holding element 64, this has on a side facing away from the antenna unit 16 side 150 extensions 152, which are aligned perpendicular to a surface of the enclosure 52.
  • the projections 152 have recesses 154, by means of which an attachment, such as screwing, with other components of the locating device 12 is achieved ( FIGS. 6 to 8 ).
  • the sheath 52 could be formed entirely of a conductive material as shown in FIG FIG. 9 , an alternative embodiment of the LCR antenna device 14, is shown.
  • the sheath 52 is completely formed of a metallic material and has a square cross section.
  • the design of the antenna unit 16 corresponds to a training in the FIGS. 1 to 8 ,
  • the antenna unit 16 may be provided with a specially shaped dielectric, such as a lens, for example, to change a radiation behavior, in particular an aperture angle.
  • the antenna unit 16 may be provided with a dielectric for decreasing a frequency range at various locations.
  • a bandwidth of the antenna unit 16 may be further increased or an input match of the antenna unit 16 may be attached by, for example, attaching resistors to the antenna unit 16 and / or applying a lossy coating, etc. so that unwanted currents and / or waves can be absorbed ,

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Claims (13)

  1. Appareil de repérage guidé à la main (12), destiné à localiser un objet agencé dans un objet de recherche, avec un radiateur haute intensité (LCR) (14), lequel comporte un élément de plan de masse (30) et une unité d'antenne (16), dans lequel l'unité d'antenne (16) comprend quatre éléments conducteurs inférieurs (32, 34, 36, 38) et est prévue pour une émission et/ou une réception d'un signal de mesure (48) doté d'une première direction de polarisation (18), et l'unité d'antenne (16) comporte au moins une deuxième direction de polarisation (20) pour une émission et/ou une réception du signal de mesure (48), dans lequel la première direction de polarisation (18) est orientée de manière essentiellement orthogonale à la deuxième direction de polarisation (20), dans lequel le dispositif d'antenne LCR (14) comporte au moins deux premiers éléments de raccordement (22, 26), lesquels sont prévus pour une injection d'un signal de la première direction de polarisation (18), et au moins deux éléments de raccordement supplémentaires (24, 28), lesquels sont prévus pour une injection d'un signal de la deuxième direction de polarisation (20), caractérisé en ce qu'un écart (40) des éléments conducteurs (32, 34, 36, 38) à l'élément de plan de masse (30) augmente de manière continue le long d'une direction (42) d'un élément de raccordement respectif (22, 24, 26, 28) des éléments conducteurs (32, 34, 36, 38) à une zone (44) des éléments conducteurs (32, 34, 36, 38) se détournant des éléments de raccordement respectifs (22, 24, 26, 28), dans lequel pendant le fonctionnement de l'appareil de repérage (12), des signaux ou des ondes sont conduits, par le biais des éléments conducteurs inférieurs (32, 34, 36, 38), des éléments de raccordement (22, 24, 26, 28) aux éléments conducteurs latéraux (86, 88, 90, 92) de l'unité d'antenne (16) et de ceux-ci à un élément rayonnant (84) de l'unité d'antenne (16), dans lequel l'élément de plan de masse (30) est orienté parallèlement à l'élément rayonnant (84).
  2. Appareil de repérage guidé à la main (12) selon la revendication 1, caractérisé en ce que les deux éléments conducteurs inférieurs (32, 34, 36, 38) présentent une largeur (46) qui augmente le long de la direction (42).
  3. Appareil de repérage guidé à la main (12) selon l'une des revendications précédentes, caractérisé en ce que le dispositif d'antenne LCR (14) comporte une enveloppe (52) entourant l'unité d'antenne (16) dans au moins une direction (50), formant une cavité (54) autour de l'unité d'antenne (16).
  4. Appareil de repérage guidé à la main (12) selon la revendication 3, caractérisé en ce que l'enveloppe (52) est faite au moins partiellement en matériau conducteur.
  5. Appareil de repérage guidé à la main (12) selon la revendication 4, caractérisé en ce que l'enveloppe (52) est formée au moins partiellement par une bobine d'induction (62).
  6. Appareil de repérage guidé à la main (12), au moins selon la revendication 5, caractérisé en ce que l'enveloppe (52) comporte une forme (56), qui est orientée de façon symétrique à au moins un plan de symétrie (58, 60) de l'unité d'antenne (16).
  7. Appareil de repérage guidé à la main (12) selon la revendication 6, caractérisé en ce que l'enveloppe (52) comporte une section octogonale.
  8. Appareil de repérage guidé à la main (12) selon l'une des revendications précédentes, caractérisé en ce que le dispositif d'antenne LCR (14) comporte un élément de maintien (64), lequel est prévu pour le blocage de l'unité d'antenne (16).
  9. Appareil de repérage guidé à la main (12) selon la revendication 8, caractérisé par une unité de guidage (66) dotée d'une direction de déplacement (68), dans lequel l'élément de maintien (64) agence l'unité d'antenne (16) avec un angle (70) entre un plan de symétrie (58, 60) de l'unité d'antenne (16) et la direction de déplacement (68) d'environ 45°.
  10. Appareil de repérage guidé à la main (12) selon l'une des revendications précédentes, caractérisé en ce que l'appareil comporte une unité de guidage (66) dotée d'une direction de déplacement (68), dans lequel la première direction de polarisation de l'unité d'antenne (16) définit un angle d'environ 45° par rapport à la direction de déplacement (68).
  11. Appareil de repérage guidé à la main (12), au moins selon la revendication 8, caractérisé en ce que l'élément de maintien (64) est prévu pour un accueil d'une enveloppe (52) de l'unité d'antenne (16).
  12. Appareil de repérage guidé à la main (12), au moins selon la revendication 8, caractérisé en ce que l'élément de maintien (64) comporte des évidements (72), qui sont prévus pour un guidage d'éléments de raccordement (22, 24, 26, 28) de l'unité d'antenne (16).
  13. Procédé de fonctionnement d'un appareil de repérage guidé à la main (12) selon la revendication 1, caractérisé en ce que sur un des éléments de raccordement (22, 24, 26, 28) d'une des directions de polarisation (18, 20) un signal déphasé à 180° d'amplitude identique par rapport à un signal de l'élément de raccordement supplémentaire (22, 24, 26, 28) de la direction de polarisation (18, 20) est créé dans au moins un mode de fonctionnement.
EP09782019.5A 2008-08-28 2009-08-20 Appareil électrique Active EP2319124B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008041651A DE102008041651A1 (de) 2008-08-28 2008-08-28 Elektrogerät
PCT/EP2009/060759 WO2010023152A1 (fr) 2008-08-28 2009-08-20 Appareil électrique

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EP2319124A1 EP2319124A1 (fr) 2011-05-11
EP2319124B1 true EP2319124B1 (fr) 2019-07-31

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EP09782019.5A Active EP2319124B1 (fr) 2008-08-28 2009-08-20 Appareil électrique

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US (1) US9553372B2 (fr)
EP (1) EP2319124B1 (fr)
CN (1) CN102197536B (fr)
DE (1) DE102008041651A1 (fr)
WO (1) WO2010023152A1 (fr)

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DE102011088438A1 (de) 2011-12-13 2013-06-13 Robert Bosch Gmbh Handwerkzeugvorrichtung
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CN108141698B (zh) * 2015-12-28 2020-06-16 华为技术有限公司 一种楼层定位方法、设备及***
CN107121675B (zh) * 2017-05-04 2020-12-29 成都零点科技有限公司 具有杂波抑制功能的远程位移测量装置、***及方法
ES2779973T3 (es) * 2017-05-18 2020-08-21 Premo Sa Antena tri-axial de bajo perfil
CN110429385A (zh) * 2019-07-22 2019-11-08 深圳市易探科技有限公司 用于移动传感器的双极化微带天线及其信号收发方法
CN110768013A (zh) * 2019-10-31 2020-02-07 维沃移动通信有限公司 一种天线单元及电子设备
CN110828987A (zh) * 2019-10-31 2020-02-21 维沃移动通信有限公司 一种天线单元及电子设备
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CN110911833A (zh) * 2019-11-28 2020-03-24 维沃移动通信有限公司 一种天线单元和电子设备
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Publication number Publication date
DE102008041651A1 (de) 2010-03-04
EP2319124A1 (fr) 2011-05-11
CN102197536B (zh) 2017-04-19
US20110181483A1 (en) 2011-07-28
WO2010023152A1 (fr) 2010-03-04
US9553372B2 (en) 2017-01-24
CN102197536A (zh) 2011-09-21

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