EP2458680A2 - Antenne pour la réception de signaux satellite circulaires polarisés - Google Patents

Antenne pour la réception de signaux satellite circulaires polarisés Download PDF

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Publication number
EP2458680A2
EP2458680A2 EP11010231A EP11010231A EP2458680A2 EP 2458680 A2 EP2458680 A2 EP 2458680A2 EP 11010231 A EP11010231 A EP 11010231A EP 11010231 A EP11010231 A EP 11010231A EP 2458680 A2 EP2458680 A2 EP 2458680A2
Authority
EP
European Patent Office
Prior art keywords
radiator
ring line
antenna
ring
line
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
Application number
EP11010231A
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German (de)
English (en)
Other versions
EP2458680A3 (fr
EP2458680B1 (fr
Inventor
Stefan Lindenmeier
Heinz Lindenmeier
Leopold Reiter
Jochen Hopf
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Delphi Deutschland GmbH
Original Assignee
Delphi Delco Electronics Europe GmbH
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Filing date
Publication date
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Publication of EP2458680A2 publication Critical patent/EP2458680A2/fr
Publication of EP2458680A3 publication Critical patent/EP2458680A3/fr
Application granted granted Critical
Publication of EP2458680B1 publication Critical patent/EP2458680B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array

Definitions

  • the invention relates to an antenna for receiving circularly polarized satellite radio signals.
  • Satellite radio signals are transmitted due to polarization rotations in the transmission path usually with circularly polarized electromagnetic waves.
  • program contents are transmitted, for example, in frequency bands close to each other separated frequency bands *. This is done in the example of SDARS satellite broadcasting at a frequency of about 2.33 GHz in two adjacent frequency bands, each with a bandwidth of 4 MHz with a spacing of the center frequencies of 8 MHz.
  • the signals are emitted by different satellites with a circularly polarized in one direction electromagnetic wave.
  • circularly polarized antennas are used to receive in the corresponding direction of rotation.
  • Such antennas are for example off DE-A-4008505 and DE-A-10163793 known.
  • This satellite broadcasting system is additionally supported by the regional emission of terrestrial signals in another, arranged between the two satellite signals frequency band of the same bandwidth. Similar satellite broadcasting systems are currently being planned.
  • the satellites of the Global Positioning System (GPS) also radiate circularly polarized waves in one direction at the frequency of approximately 1575 MHz, so that the antenna forms mentioned can basically be designed for this service.
  • the from the DE-A-4008505 known antenna is constructed on a substantially horizontally oriented conductive base and consists of crossed horizontal dipoles with V-shaped downwardly inclined, consisting of linear ladder parts Dipolhhann which are mechanically fixed at an azimuthal angle of 90 degrees to each other and at the top of a on the conductive base surface mounted linear vertical conductor are mounted.
  • the from the DE-A-10163793 known antenna is also constructed on a generally horizontally oriented conductive base and consists of crossed azimuthally mounted at 90 ° to each other frame structures. In both antennas, the mutually spatially offset by 90 ° antenna parts in the electrical phase are interconnected shifted by 90 ° to each other to generate the circular polarization.
  • both antenna types are suitable for the reception of satellite signals, which are emitted by high-flying satellites - so-called HEOS.
  • HEOS high-flying satellites
  • the reception of temperature noise can be significantly reduced compared to the reception of the satellite signals.
  • antennas which from the DE-A-4008505 and the DE-A-10163793 are known problems arise from the The fact that the individual antenna parts are placed on planes crossed at a right angle and that these planes are additionally perpendicular to the conductive ground plane.
  • Such antennas can not be produced sufficiently economically, as desired, for example, for use in the automotive industry. This applies in particular to the frequencies of several gigahertz that are customary in satellite antennas, for which a particularly high mechanical accuracy is necessary in the interest of polarization purity, impedance matching and the reproducibility of the directional diagram in mass production of the antennas.
  • the production of patch antennas is usually relatively complicated due to the tightly tolerated dielectric.
  • the object of the invention is therefore to provide an antenna with low volume, which depending on their design for both a particularly powerful reception of high elevation angles incident circularly polarized in one direction radiated satellite signals with high gain in the vertical direction and for the high-performance reception of Under low elevation angles incident circularly polarized in one direction of rotation emitted satellite signals with high cross polarization suppression over a large elevation angle range is suitable, in particular, the possibility of an economical production should be given.
  • an antenna according to the invention With an antenna according to the invention, the advantage is associated with allowing the reception of linearly polarized waves received at low elevation with azimuthally nearly homogeneous directional diagram. Another advantage of an antenna according to the invention is its particularly simple manufacturability, which allows the realization by simple curved sheet metal structures.
  • the antenna for receiving circularly polarized satellite radio signals comprises at least one substantially horizontally oriented conductor loop arranged above a conductive base surface 6, with an arrangement for electromagnetic excitation 3 of the conductor loop connected to an antenna connection 5.
  • the conductor loop is designed as a ring line radiator 2 by a polygonal or circular closed loop in a horizontal plane with the height h over the conductive base 6 extending.
  • the ring line emitter 2 forms a resonant structure and is electrically excited by the electromagnetic excitation 3 in such a way that adjusts the current distribution of a current line wave in a circumferential direction, the phase difference over a circuit is just 2 ⁇ on the loop.
  • the height h is preferably less than 1/5 of the free space wavelength ⁇ to choose.
  • Azimuthal is generally aimed at broadcasting.
  • the distribution of the currents on an antenna in receive mode depends on the terminator at the antenna junction.
  • the distribution of the currents on the antenna conductors related to the supply current at the antenna connection point is independent of the source resistance of the supplying signal source and is thus uniquely linked to the directional diagram and the polarization of the antenna.
  • FIG. 1a shows an antenna according to the invention with a designed as a resonant structure circular ring channel radiator 2 for generating a circularly polarized field.
  • the stretched length of the ring line of the ring line radiator 2 is selected such that it substantially corresponds to the line wavelength ⁇ .
  • the ring line radiator 2 is designed to extend in a horizontal plane with the height h over the conductive base 6, so that it forms an electrical line with respect to the conductive base 6 with a characteristic impedance, which is made the height h and the effective diameter of the substantially wire-shaped loop conductor.
  • Figure 1 b is a similar antenna according to the invention is shown in which, however, additional, the excitation 3 not belonging vertical radiators are present, which are coupled at ring line crosspoints 7 to the ring line emitter 2 and guided to the electrically conductive base 6 out and in which at points of interruption low-loss reactance circuits 13 of the reactance X are turned on.
  • the vertical radiator 4 and the switched reactance X the propagation of the line wave on the ring line radiator 2 can be brought about with preferably uniform distribution of the spacings of ⁇ / 4 between the ring line crosspoints 7.
  • the generation of a continuous line shaft on the ring line radiator 2 in FIG. 2a with an arousal 3, which by a parallel Richtkoppelleiter 8 is given. This is performed in a respect to the line impedance characteristic coupling distance over a straight length of ⁇ / 4 parallel to the ring line radiator 2.
  • the directional coupling conductor 8 is connected on one side via a vertical radiator 4a and a matching network 25 to the antenna terminal 5 and on the other side via a vertical radiator 4b with the conductive base 6.
  • FIG. 2b In a further advantageous embodiment of the invention is in FIG. 2b to generate a continuous line wave on the ring line emitter 2, the excitation 3, however, given by two substantially vertical radiator 4, which are parallel in a respect to the 1 ⁇ 4-line wavelength distance 37 and guided via galvanic coupling points 7 to the ring line emitter 2.
  • one vertical emitter 4a is connected to the antenna terminal 5 via a matching network 25 and the other vertical emitter 4b is connected to the conductive base 6 via a ground terminal 11.
  • a second directional coupling conductor 21 for generating two signals different by 90 ° is coupled to a transmission conductor 30 running on the conductive base 6 by parallel guidance at a short distance.
  • the second directional coupling conductor 21 is connected to the antenna connection 5 for feeding in via the vertical radiators 4 with the first directional coupling conductor 8 and the microstrip conductor 30.
  • the electromagnetic excitation 3 takes place in the Way that between the lower ends of the vertical radiator 4 and the electrically conductive base surface of the same size signals are fed, which are each shifted by 360 ° / 4 to each other in phase.
  • the ring line radiator 2 in FIG. 5 formed as a closed square line ring with the edge length of ⁇ / 4 on the conductive base 6 at a distance h above the conductive base 6.
  • the electromagnetic excitation 3 is designed as a ramp-shaped directional coupling conductor 12 with an advantageous length of substantially ⁇ / 4. This is designed substantially as a linear conductor, which advantageously extends in a plane which includes one side of the ring line radiator 2 and which is oriented perpendicular to the electrically conductive base surface 6.
  • the linear conductor starting from the antenna connection 5 located on the conductive base 6, leads via a vertical feed line 4 to a coupling end spacing 16 to one of the corners of the ring line emitter 2 and is substantially below an adjacent corner from there in accordance with a ramp function led to the base 6 and connected to this via the ground terminal 11 conductive.
  • the adaptation to the antenna connector 5 can be easily made.
  • the particular advantage of this arrangement consists in the contactless coupling of the excitation 3 to the square-shaped ring line radiator 2, which according to the invention enables a particularly simple production of the antenna.
  • FIG. 6 Ring line coupling points 7 formed and the electromagnetic excitation 3 is given over the same length vertical and the conductive base 6 extending radiator 4, which are each connected via an equally long lead 22 to a port of a power distribution network and this on the other hand with the antenna port. 5 connected is.
  • the power distribution network consists in an advantageous manner in chain, formed on the conductive base 6 ⁇ / 4-long MikrostMailleitem 30a, 30b, 30c, wherein the characteristic impedance - starting from a low characteristic impedance at the antenna terminal 5 - to which one of the vertical radiator 4 via its supply line 22 is directly connected - are staggered in such a way that the fed at the corners in the loop emitter 2 signals have the same power and each lag 90 ° in the phase continuously lagging.
  • antennas according to the invention are those arrangements in which the ring line radiator 2 of the straight length L at substantially similar distances UN to each other ring line coupling points 7 are designed and to each of which a vertical radiator 4 is coupled, which on the other hand via ground Connection points 11 are coupled to the electrically conductive base 6.
  • a vertical radiator 4 is coupled, which on the other hand via ground Connection points 11 are coupled to the electrically conductive base 6.
  • FIG. 7 shows an arrangement of this kind, wherein the versatile design excitation 3 is indicated in a general form.
  • electromagnetic coupling that is preferably galvanic or capacitive coupling of the two antenna parts, consisting of the ring line emitter 2 and the circle group of the vertical radiator 4 at the loop coupling points 7, the antenna parts are coupled together in such a way that both antenna parts constructive to a circular contribute to polarized field.
  • the ring line emitter 2 acts as a radiating element which generates a circularly polarized field with a vertical main radiation direction. This field is superimposed on that generated by the vertical radiators 4 electromagnetic field.
  • the electromagnetic field generated by the circle group of the vertical radiator 4 in diagonal elevation is also circularly polarized with the azimuth substantially independent main beam direction. At lower elevation, this field is vertically polarized and substantially azimuthally independent as well.
  • the resonance structure is connected to the antenna connection 5 via an excitation 3 in such a way that the line wave on the ring line emitter 2 propagates substantially only in one direction of rotation so that one period of the line wave is contained in the direction of rotation of the ring structure.
  • the ring structure with N vertical beams can be divided into N segments.
  • I ⁇ 2 I ⁇ 1 • exp j ⁇ 2 ⁇ ⁇ / N
  • I ⁇ S I ⁇ 1 • exp ( j ⁇ 2 ⁇ ⁇ L / N ⁇ - exp ( j ⁇ 2 ⁇ ⁇ L / N
  • the vertical radiators 4 together with the reactances X form in their equivalent circuit diagram a filter consisting of a series inductance, a parallel capacitance and a further series inductance.
  • the parallel capacity is set by adjusting the reactances X so that the filter is adapted on both sides to the conductor impedance of the annular transmission line 1.
  • the resonant structure thus consists of N conductor segments of length UN and one filter connected to each. Each filter causes a phase rotation ⁇ .
  • the antenna is also particularly suitable for the reception of signals from low-flying satellites.
  • the antenna can also be advantageously used for satellite broadcasting systems in which terrestrial, vertically polarized signals are also transmitted in support of the reception.
  • the horizontal radiator elements 14 can be used flexibly for further shaping of the vertical radiation pattern of the antenna.
  • FIG. 9 shown quadratic shape, with four formed at the corners of the square ring line crosspoints 7 and there galvanically connected vertical beam 4, each with a bottom of the ground terminal 11 introduced towards capacity 15 as a reactance circuit 13.
  • the excitation 3 of this resonant structure can on various types Be fashioned and is therefore in FIG. 9 not included.
  • this is non-contact as directed inductively and capacitively coupled conductor loop as a directional coupler 18 as in FIG. 11 designed.
  • the directional coupling conductor 18 is tapered in shape, and is similar as in connection with the excitation 3 in FIG. 5 described, designed substantially as a linear conductor, which advantageously extends in a plane which includes one side of the ring line radiator 2 and which is oriented perpendicular to the electrically conductive base surface 6.
  • the linear conductor starting from the located on the conductive base 6 ground connection points 11 via a short vertical lead and a ramp function to a coupling distance 10 to the ring line emitter 2, is from there via a vertical radiator 4 to the conductive base returned and connected via a matching network 25 to the antenna connector 5.
  • FIG. 12a is one of the vertical radiator 4a with the capacitance 15 realized reactance circuit 13 is not formed at the ground terminal 11 on the electrically conductive base 6 but at the level of the conductive base 6 Connection to the matching network 25 and thus coupled to the antenna connector 5.
  • characteristic impedance of the section of the ring line radiator 2 to adjacent ring line crosspoint 7b designed in deviation from the characteristic impedance of the remaining sections of the ring line radiator 2.
  • the design of the characteristic impedance can be carried out in a known manner, for example by selecting the effective diameter of the substantially linear ring line emitter 2, or as exemplified by an additional conductor 19 reducing the characteristic impedance.
  • To further support the unidirectionality of the wave propagation on the loop emitter 2 is in FIG. 12b a further portion of the ring line radiator 2 opposite the first section having a different characteristic impedance with characteristic impedance deviating from the characteristic impedance of the remaining sections of the ring line radiator 2.
  • the electromagnetic excitation 3 is designed by partial coupling to one of the vertical radiator 4 at one of the loop coupling points 7a.
  • the unidirectional effect of the electromagnetic excitation 3 with respect to the wave propagation is given by partial coupling to a vertical radiator 4a via a coupling conductor 23 guided parallel to a part of the ring-shaped radiator 2 and the other end of the coupling conductor 23 is to a vertical radiator running to the conductive base 6 4e connected, the latter being connected via a matching network 25 to the antenna connection 5.
  • FIG. 14 is the matching network 25 in the form of a parallel to the electrically conductive base 6 set high-impedance transmission line over about 1 ⁇ 4 of the wavelength advantageously carried out.
  • each section between adjacent ring line coupling points 7 of the ring line radiator 2 can be given a meandering shape 17 that is the same for all sections, as shown by way of example in FIG FIG. 10 is shown.
  • An essential feature of an antenna according to the present invention is the possibility for particularly low-cost production.
  • an outstandingly advantageous form of the antenna with square ring-shaped radiator 2 is similar in nature to that in FIG. 12b designed and in FIG. 15 shown.
  • the ring line emitter 2 with the vertical emitters 4a, 4b, 4c, 4d, together with the flat-shaped capacitance electrodes 32a, 32b, 32c, 32d individually shaped at their lower end, can be made, for example, from a coherent, stamped and formed sheet metal part.
  • the characteristic impedance of the sections of the ring line radiator 2 can be designed individually by choosing the width of the connectors.
  • the electrically conductive base 6 is preferably designed as a conductive coated circuit board.
  • the reactance circuits 13 realized as capacitances 15 are formed in such a way that the capacitance electrodes 32a, 32b, 32c, 32d are provided by interposition of a dielectric plate 33 located between them and the electrically conductive base 6 for coupling three vertical beams 4a, 4b, 4c the electrically conductive base 6 are designed.
  • this is designed as a planar counterelectrode 34 isolated from the conductive layer of the printed circuit board.
  • the sheet-metal part, the dielectric plate 33 and the electrically conductive base 6 embodied as a printed circuit board can be distinguished by a low-effort Bonding and thus be connected to each other without elaborate soldering.
  • the connection to a receiver can be realized in a known manner, for example by connecting a microstrip line or a coaxial line, starting from the antenna connection 5.
  • FIG. 16 instead of a dielectric plate 33 between the lower ends of the vertical radiators 4a, 4b, 4c, 4d and the electrically conductive base 6 designed as a conductive coated printed circuit board, a further conductive coated, dielectric circuit board is inserted.
  • the capacitive coupling of the fourth vertical radiator 4 d to the antenna terminal 5, which is designed as a planar counterelectrode 34 isolated from the conductive layer, is provided via the capacitance electrode 32.
  • the antenna is in FIG. 17 similar in the Figures 16 designed, wherein the conductive structure, consisting of the ring conductor 2 and the associated vertical beam 4, is fixed by a dielectric support structure 36 in such a way that the dielectric plate 33 is realized in the form of an air gap.
  • the reactance circuit 13 is designed multi-frequency in such a way that both the resonance of the ring line radiator 2 and the required direction of the line shaft on the ring line emitter 2 is given in separate frequency bands.
  • the environment of the ring line radiator 2 with the cavity basically has a narrowing the frequency bandwidth of the antenna 1 effect, which is essentially determined by the cavity spacing 41 between the ring line radiator 2 and the cavity 38. Therefore, the conductive cavity base surface 39 should be at least large enough to at least cover the vertical projection surface of the loop emitter 2 to the base surface plane E2 located below the conductive base. In an advantageous embodiment of the invention, however, the cavity base surface 39 is larger and selected in such a way that the cavity side surfaces 40 can be designed as vertical surfaces and while a sufficient cavity spacing 41 between the ring line radiator 2 and the cavity 38 is given ,
  • the base surface plane E2 is advantageous to choose the base surface plane E2 to be approximately as large as the vertical projection surface of the ring line radiator 2 to the base surface plane E2 and make the cavity side surfaces 40 along a contour inclined from a vertical line.
  • the inclination of this contour is to be selected in such a way that at the required frequency bandwidth of the antenna 1, a sufficiently large cavity spacing 41 is given between the ring line radiator 2 and the cavity 38 at each point.
  • the inclination of the cavity side surfaces 40 is selected in each case in the manner that at a vertical distance z above the cavity base surface 39, the horizontal distance d between the vertical connecting line between the ring tube radiator 2 and the cavity base surface 39 and the nearest cavity side surface 40 assumes at least half the vertical distance z.
  • the frequency bandwidth of the antenna 1 increases the further the cavity 38 is opened upwards. If, while maintaining the last-mentioned necessary cavity spacing 41 between the ring line radiator 2 and the cavity 38, the cavity side surfaces 40 are designed vertically, the necessary frequency bandwidth is also ensured. The same also applies if the height h of the ring line plane E is greater than the depth of the cavity base surface 39, as shown in FIG FIG. 18a is shown. That is, h is larger than h1 and the antenna 1 is not fully integrated with the vehicle body.
  • ring line emitters 2 offer the advantage of a particularly space-saving design.
  • a plurality of ring line radiators for the different frequencies of several radio services can be designed around a common center Z. Due to their different resonance frequencies, the different ring line radiators influence only slightly, so that low Distances between the ring lines of the ring radiator 2 can be designed.
  • a circular-polarization ring antenna with an azimuthal circular diagram the phase of the radiated electromagnetic femur field rotates with the azimuthal angle of the propagation vector due to the current wave propagating in one direction on the ring main.
  • Fig. 19 is a ring line emitter 2 according to the invention surrounded by another ring line emitter 2a, which is formed according to the rules described above and which also forms a resonant structure and is electrically excited in such a way that on the loop the current distribution of a current line wave in a single Adjusting the direction of rotation, the phase difference is in contrast to the inner loop emitter 2 over a circuit straight N * 2 ⁇ .
  • N is an integer and is N> 1.
  • the two ring line radiators are combined with the same center Z.
  • the phase reference points of the two ring line emitters 2, 2a are congruent in the common center Z.
  • the in Fig. 19 illustrated outer loop emitter 2a is exemplified by two ⁇ / 4-spaced crosspoints 7a, similar to in FIG Fig. 2 , electrically excited.
  • N 2
  • a directional antenna with a predetermined azimuthal main direction and elevation can be designed according to the invention. This is done by the different azimuthal dependency of the current phases on the two ring line radiators 2, 2a, depending on the Phase position of the two current waves on the ring line beam 2, 2a, the radiation depending on the azimuth angle of the propagation vector partially superimposed supportive or attenuating.
  • the further ring line radiator 2a as a rotationally symmetrical about the center Z arranged polygonal or circular closed ring line radiator 2a in a horizontal plane with the height ha on the conductive base 6 extending designed.
  • the ring line 2a is fed in such a way that adjusts itself to the current distribution of a current line wave whose phase difference over a cycle is just 2 * 2 ⁇ .
  • the stretched length of the further ring channel radiator 2a can also be made shorter by a shortening factor k ⁇ 1 than the corresponding double wavelength ⁇ .
  • the phase difference of 2 ⁇ (ring line radiator 2) and 2 * 2 ⁇ (ring line radiator 2a) on the loop by increasing the line inductance and / or the line capacitance to the conductive base 6 done.
  • this circular or polygonal shape is designed with 8 cross-sectionally equidistantly arranged crosspoints 7a with vertical beams 4 coupled thereto.
  • Fig. 20 shows by way of example a circular ring line radiator 2a with further reactance circuits 45a,... 45d, which are introduced into the vertical radiators 4.
  • reactance circuits 45a ... 45d together with the characteristic impedances Zf of the ring line sections between the loop coupling points 7a, they are matched such that both the running direction of the rotating shaft in the predetermined direction and the resonance of the ring conditioner 2a for the phase condition Set 2 * 2 ⁇ for this wave.
  • the ring line sections of the two ring line emitters 2, 2a can be selected substantially shorter than a quarter wavelength up to ⁇ / 8. Accordingly, in successive loop sections, large and small inductance values and small and large capacitance values of the loop sections alternate.
  • FIG. 21 shows a plan view of the directional antenna in FIG. 20 , wherein the antenna is formed of a square shaped ring line radiator 2 and an octagonal shaped further ring line radiator 2.
  • the loop coupling points 7 and 7a are respectively formed at the corners of the square inner ring and the octagonal outer ring.
  • To each of the vertical radiator 4 are connected.
  • the summation network 44 as a summation and selection network 44a can there be separated both between the received signals of the two ring line emitters 2, 2a and the weighted overlay - optionally with different weights.

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EP11010231.6A 2009-09-10 2010-08-24 Antenne pour la réception de signaux satellite circulaires polarisés Active EP2458680B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009040910 2009-09-10
EP10173919.1A EP2296227B1 (fr) 2009-09-10 2010-08-24 Antenne pour la réception de signaux satellite circulaires polarisés

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP10173919.1A Division EP2296227B1 (fr) 2009-09-10 2010-08-24 Antenne pour la réception de signaux satellite circulaires polarisés
EP10173919.1A Division-Into EP2296227B1 (fr) 2009-09-10 2010-08-24 Antenne pour la réception de signaux satellite circulaires polarisés
EP10173919.1 Division 2010-08-24

Publications (3)

Publication Number Publication Date
EP2458680A2 true EP2458680A2 (fr) 2012-05-30
EP2458680A3 EP2458680A3 (fr) 2014-03-26
EP2458680B1 EP2458680B1 (fr) 2016-07-27

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EP11010231.6A Active EP2458680B1 (fr) 2009-09-10 2010-08-24 Antenne pour la réception de signaux satellite circulaires polarisés
EP11010230.8A Not-in-force EP2458679B1 (fr) 2009-09-10 2010-08-24 Antenne pour la réception de signaux satellite circulaires polarisés
EP10173919.1A Active EP2296227B1 (fr) 2009-09-10 2010-08-24 Antenne pour la réception de signaux satellite circulaires polarisés

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP11010230.8A Not-in-force EP2458679B1 (fr) 2009-09-10 2010-08-24 Antenne pour la réception de signaux satellite circulaires polarisés
EP10173919.1A Active EP2296227B1 (fr) 2009-09-10 2010-08-24 Antenne pour la réception de signaux satellite circulaires polarisés

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US (3) US8599083B2 (fr)
EP (3) EP2458680B1 (fr)
DE (1) DE102010035932B4 (fr)

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DE102016010200A1 (de) * 2016-05-04 2017-11-09 Heinz Lindenmeier Antenne unter einer schalenförmigen Antennenschutzhaube für Fahrzeuge
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CN107425292A (zh) * 2017-06-08 2017-12-01 瑞声科技(新加坡)有限公司 天线及可穿戴设备
DE102017009758A1 (de) 2017-10-19 2019-04-25 Heinz Lindenmeier Antennenanordnung für zirkular polarisierte Satellitenfunksignale auf einem Fahrzeug
DE102017010514A1 (de) * 2017-11-10 2019-05-16 Heinz Lindenmeier Empfangsantenne für die Satellitennavigation auf einem Fahrzeug
DE102018105153B4 (de) * 2018-03-06 2022-11-17 Antonics-Icp Gmbh Sperrfilteranordnung
RU2680429C1 (ru) 2018-05-21 2019-02-21 Самсунг Электроникс Ко., Лтд. Оптически-управляемый переключатель миллиметрового диапазона и основанные на нем устройства
DE102018211931A1 (de) * 2018-07-18 2020-01-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung zur Modenverwirbelung
KR101917130B1 (ko) 2018-07-30 2018-11-09 한국지질자원연구원 단일루프로 구성된 바이스태틱 펄스 레이다 안테나
CN114361770B (zh) * 2022-01-07 2024-04-02 安徽大学 差分馈电的圆极化微带环天线
CN116053806B (zh) * 2022-07-19 2023-11-28 荣耀终端有限公司 一种天线切换方法和终端天线
DE102022132788A1 (de) * 2022-12-09 2024-06-20 Fuba Automotive Electronics Gmbh Satellitenantenne

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US20130257678A1 (en) 2013-10-03
US8599083B2 (en) 2013-12-03
US20140203979A1 (en) 2014-07-24
EP2458679A3 (fr) 2014-03-26
EP2458679A2 (fr) 2012-05-30
DE102010035932B4 (de) 2018-12-20
US9300047B2 (en) 2016-03-29
US9287623B2 (en) 2016-03-15
US20110215978A1 (en) 2011-09-08
EP2458680A3 (fr) 2014-03-26
EP2458679B1 (fr) 2016-07-27
EP2296227B1 (fr) 2018-02-21
EP2458680B1 (fr) 2016-07-27
EP2296227A2 (fr) 2011-03-16
EP2296227A3 (fr) 2011-06-29
DE102010035932A1 (de) 2011-04-21

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