EP1454381B1 - Antenne, sous forme de resonateur a cavite, dotee d'une fente large bande - Google Patents

Antenne, sous forme de resonateur a cavite, dotee d'une fente large bande Download PDF

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Publication number
EP1454381B1
EP1454381B1 EP02792761A EP02792761A EP1454381B1 EP 1454381 B1 EP1454381 B1 EP 1454381B1 EP 02792761 A EP02792761 A EP 02792761A EP 02792761 A EP02792761 A EP 02792761A EP 1454381 B1 EP1454381 B1 EP 1454381B1
Authority
EP
European Patent Office
Prior art keywords
antenna
slot
areas
board
point
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.)
Expired - Lifetime
Application number
EP02792761A
Other languages
German (de)
English (en)
Other versions
EP1454381A1 (fr
Inventor
Markus Pfletschinger
Martin Kuhn
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.)
Hirschmann Electronics GmbH and Co KG
Hirschmann Electronics GmbH
Original Assignee
Hirschmann Electronics GmbH and Co KG
Hirschmann Electronics GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hirschmann Electronics GmbH and Co KG, Hirschmann Electronics GmbH filed Critical Hirschmann Electronics GmbH and Co KG
Publication of EP1454381A1 publication Critical patent/EP1454381A1/fr
Application granted granted Critical
Publication of EP1454381B1 publication Critical patent/EP1454381B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas
    • H01Q13/18—Resonant slot antennas the slot being backed by, or formed in boundary wall of, a resonant cavity ; Open cavity antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1271—Supports; Mounting means for mounting on windscreens
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles

Definitions

  • the invention relates to an antenna for mobile radio according to the features of the preamble of claim 1,
  • an antenna preferably a vehicle antenna for mobile radio, known.
  • this antenna are provided as a radiation means vertical radiator, which are arranged on a ground plane and connected to each other via an impedance transformation line. Due to the tuning (in particular length) of the vertical radiator and the impedance transformation line for the intended frequency range, in particular in the mobile radio range of 0.8 to 2.2 GHz, this known antenna has predetermined longitudinal and vertical dimensions. Since this antenna is integrated below a rear window of a vehicle, it requires due to their geometric dimension of a large space that either is not available or is reduced by the interior of the vehicle in an undesirable manner.
  • an antenna with radiation means for receiving and transmitting high-frequency signals wherein as radiation means conductive areas are provided on a circuit board which are separated from each other by at least one longitudinal slot.
  • the longitudinal slot is formed symmetrically to a longitudinal axis of the antenna, so that the two separated from the slot conductive areas are also designed symmetrically.
  • the FR 1.091.358 and the EP 0 531 800 A1 show antennas in which electrically conductive portions are used as the radiation means, wherein the electrically conductive portions are separated from a slot asymmetrically to its longitudinal axis.
  • the invention is therefore based on the object, an antenna, in particular a vehicle antenna for mobile, to provide, with the above-described disadvantages are avoided. Taking into account the limited installation space, this antenna should be able to be easily mounted in a vehicle and have the required transmission and reception characteristics in the vehicle.
  • a conductive region which is open on both sides and longitudinally slit in a plurality of frequency ranges is excited to radiate as the radiation means. Because of this, it is possible for the antenna to be more compact with the same characteristics, in particular significantly shorter (about half) and shallower. Thus, the existing space under the rear window or on the roof flange of the vehicle space can be used much better and more economical.
  • the length of the antenna corresponds to approximately one third the wavelength of the lowest frequency.
  • the longitudinally slotted conductive areas together form a tapered slot.
  • a housing body made of sheet metal prevents radiation from entering the interior of the vehicle.
  • the housing body which extends at least over the area of the circuit board, but may also be larger or smaller, at least a substantial reduction of the radiation into the interior of the vehicle is realized.
  • the impedance of the antenna can be adapted in wide or additional areas.
  • the leg of the angled slot extending from the tapered slot is shorter than the adjoining slot area.
  • the longitudinally diffused conductive region has a double bend in a partial region.
  • the example about funnel shape having doubly kinked slot ensures a large broadband and thus makes the spotlight robust against installation tolerances.
  • the longitudinally slotted conductive regions are arranged as a copper surface on a circuit board.
  • an inexpensive material is available to manufacture the vertical radiator of the antenna.
  • etching method it is possible to influence the shape of the areas, as well as the shape of the slots, in wide, required areas.
  • the branching slot is designed so that no DC short circuit occurs at the base of the antenna. Because of this, the antenna can be electrically tested for its functionality or for existing faults before being installed. By avoiding the short-circuit current short circuit, only a simple test resistor in the feed point needs to be connected in parallel. The necessary for conventional slot radiator coupling capacitor can be omitted. This simplifies the construction and reduces the costs.
  • a plug is arranged in the base of the antenna on the board as a contact partner.
  • the contact partner has already been provided on the board, without a cable being required at this time.
  • a cable can be temporarily connected via the contact person. After the test, the cable can be removed again, so that the transport and storage of the antenna is simplified to its final installation. Only with or after installation of the antenna in the vehicle there is a corresponding wiring instead.
  • FIG. 1 shows an antenna 1 for receiving and transmitting high-frequency signals, in particular in the Mobfunk ranges AMPS, GSM 900/18000, PCS, UMTS and the like.
  • antenna 1 is in particular a vehicle antenna, with other applications, including static operations, are conceivable.
  • the antenna 1 has a metal housing body, which consists of a multi-angled sheet 2.
  • a metal housing body which consists of a multi-angled sheet 2.
  • Such an angled sheet 2 is favorable on the one hand in terms of material costs, on the other hand, it is quick and easy to manufacture. This affects in a positive sense the production of the antenna according to the invention 1.
  • the board 3 has in a conventional manner one consisting of a non-conductive material base.
  • first slot 7 which, on the one hand, results from the shaping of the region 4 and, on the other hand, from the shaping of the regions 5 and 6.
  • a second slot 8 is present, which in turn separates the two areas 5 and 6 from each other. If the second slot 8 is omitted, the two areas 5 and 6 form a continuous area, the second slot 8 extends approximately from the center of the first slot 7 and at first extends at right angles therefrom for a short distance, while the longer part of the second Slot 8 is located approximately parallel to the first slot 7.
  • the conductive region 5 is provided with a double kink 9.
  • a contact partner in particular a plug 11, to which a coaxial cable for feeding the antenna 1 can be inserted.
  • a contact partner in particular a plug 11
  • a coaxial cable for feeding the antenna 1 can be inserted.
  • punching Biegeberelche 12 via which the board 3 is fixed to the housing base.
  • punching bending areas 12 have the advantage that they are easy to manufacture and thus the board 3 can be quickly fixed to the housing body 2.
  • FIG. 2 shows the In FIG. 1 in a three-dimensional view illustrated antenna 1 in section at their installation.
  • a roof flange 13 In the end of a roof flange 13 not one further illustrated vehicle is followed by the rear window 14, which is attached by means of a bond (adhesive bead 15) on the roof flange 13.
  • a bond adhesive bead 15
  • the antenna in particular the vehicle antenna for mobile communications, is thus in summary designed as a radiating open cavity resonator with a specially designed broadband slot in order to achieve the most compact, particularly flat and short design possible.

Landscapes

  • Waveguide Aerials (AREA)
  • Support Of Aerials (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Details Of Aerials (AREA)

Claims (7)

  1. Antenne (1) pour radio mobile, qui présente des moyens radiants qui reçoivent et émettent des signaux à haute fréquence, des parties conductrices (4-8) servant de moyens de rayonnement et séparées les unes des autres par au moins une fente (7) qui s'étend longitudinalement étant prévues sur la carte de circuit (3), tandis que dans la direction dans laquelle aucun rayonnement ne doit être reçu, les parties (4-6) sont blindées par un corps de boîtier aux parties d'extrémité ouvertes disposé sur les bordures de la carte de circuit (3) et constitué d'une tôle coudée (2),
    caractérisée en ce que
    au moins une (4) des parties forme avec les autres parties (5, 6) une fente (7) qui converge en pointe, ouverte des deux côtés et asymétrique par rapport à son axe longitudinal, ces parties (4-6) étant excitées à rayonner dans plusieurs plages de fréquences,
    en ce qu'en outre une fente (8) qui sépare les autres parties (5, 6) se ramifie par rapport à cette fente (7) et
    en ce qu'à l'extrémité en pointe de cette fente (7), un point de pied (10) est disposé avec un partenaire de contact sur le bord de l'antenne (1).
  2. Antenne (1) selon la revendication 1, caractérisée en ce qu'au moins une partie (5) présente un double coude (9).
  3. Antenne (1) selon les revendications 1 ou 2, caractérisée en ce que l'autre fente (8) qui part de la fente (7) se ramifie au milieu de la fente (7).
  4. Antenne (1) selon l'une des revendications précédentes, caractérisée en ce que les parties (4 à 6) sont disposées sur la carte de circuit (3) sous la forme de surfaces de cuivre.
  5. Antenne (1) selon l'une des revendications 3 à 5, caractérisée en ce que la fente (8) qui se ramifie est réalisée de telle sorte qu'aucun court-circuit de courant continu ne survienne au point de pied (10) de l'antenne.
  6. Antenne (1) selon l'une des revendications précédentes, caractérisée en ce qu'une fiche (11) servant de partenaire de contact est disposée sur la carte de circuit (3) au point de pied (10) de l'antenne (1).
  7. Antenne (1) selon l'une des revendications précédentes, caractérisée en ce que la carte de circuit (3) peut être fixée sur le corps de boîtier par des parties (12) estampées et pliées.
EP02792761A 2001-12-15 2002-11-13 Antenne, sous forme de resonateur a cavite, dotee d'une fente large bande Expired - Lifetime EP1454381B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10161722 2001-12-15
DE10161722 2001-12-15
PCT/EP2002/012692 WO2003052873A1 (fr) 2001-12-15 2002-11-13 Antenne, sous forme de resonateur a cavite, dotee d'une fente large bande

Publications (2)

Publication Number Publication Date
EP1454381A1 EP1454381A1 (fr) 2004-09-08
EP1454381B1 true EP1454381B1 (fr) 2009-10-28

Family

ID=7709379

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02792761A Expired - Lifetime EP1454381B1 (fr) 2001-12-15 2002-11-13 Antenne, sous forme de resonateur a cavite, dotee d'une fente large bande

Country Status (6)

Country Link
US (1) US7019705B2 (fr)
EP (1) EP1454381B1 (fr)
JP (1) JP2005513847A (fr)
AT (1) ATE447245T1 (fr)
DE (1) DE50213971D1 (fr)
WO (1) WO2003052873A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004035064A1 (de) * 2004-07-20 2006-02-16 Receptec Gmbh Antennenmodul
US20060145936A1 (en) * 2004-12-31 2006-07-06 Gage Randall A Antenna mounting
US7164385B2 (en) * 2005-06-06 2007-01-16 Receptec Holdings, Llc Single-feed multi-frequency multi-polarization antenna
US8111196B2 (en) * 2006-09-15 2012-02-07 Laird Technologies, Inc. Stacked patch antennas
US7277056B1 (en) 2006-09-15 2007-10-02 Laird Technologies, Inc. Stacked patch antennas
US7492319B2 (en) * 2006-09-22 2009-02-17 Laird Technologies, Inc. Antenna assemblies including standard electrical connections and captured retainers and fasteners
US7737898B2 (en) * 2007-03-01 2010-06-15 L-3 Communications Integrated Systems, L.P. Very high frequency line of sight winglet antenna
US7746283B2 (en) * 2007-05-17 2010-06-29 Laird Technologies, Inc. Radio frequency identification (RFID) antenna assemblies with folded patch-antenna structures
US7796041B2 (en) * 2008-01-18 2010-09-14 Laird Technologies, Inc. Planar distributed radio-frequency identification (RFID) antenna assemblies
US20120057588A1 (en) * 2009-03-04 2012-03-08 Laird Technologies, Inc. Multiple antenna multiplexers, demultiplexers and antenna assemblies
US8045592B2 (en) * 2009-03-04 2011-10-25 Laird Technologies, Inc. Multiple antenna multiplexers, demultiplexers and antenna assemblies
US10367255B1 (en) 2018-02-02 2019-07-30 Facebook, Inc. Collimated transverse electric mode cavity antenna assembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1091358A (fr) * 1954-01-13 1955-04-12 France Etat Antenne à large bande passante
EP0531800A1 (fr) * 1991-08-26 1993-03-17 Hughes Aircraft Company Source à fente évasée asymétriquement

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4132995A (en) * 1977-10-31 1979-01-02 Raytheon Company Cavity backed slot antenna
US4425549A (en) * 1981-07-27 1984-01-10 Sperry Corporation Fin line circuit for detecting R.F. wave signals
US4843403A (en) 1987-07-29 1989-06-27 Ball Corporation Broadband notch antenna
GB2213996A (en) 1987-12-22 1989-08-23 Philips Electronic Associated Coplanar patch antenna
US5182570A (en) * 1989-11-13 1993-01-26 X-Cyte Inc. End fed flat antenna
JPH05226919A (ja) 1991-06-26 1993-09-03 Libbery Owens Ford Co 窓組込み型車輌用アンテナ
US5428364A (en) * 1993-05-20 1995-06-27 Hughes Aircraft Company Wide band dipole radiating element with a slot line feed having a Klopfenstein impedance taper
EP0632523B1 (fr) * 1993-07-01 1999-03-17 Commonwealth Scientific And Industrial Research Organisation Antenne plane
GB9416030D0 (en) * 1994-08-09 1994-09-28 Durand Ltd Dispenser for deodorants or the like
US6008770A (en) * 1996-06-24 1999-12-28 Ricoh Company, Ltd. Planar antenna and antenna array
US5900843A (en) * 1997-03-18 1999-05-04 Raytheon Company Airborne VHF antennas
DE19922699C2 (de) 1999-05-18 2001-05-17 Hirschmann Electronics Gmbh Antenne mit wenigstens einem Vertikalstrahler
DE19928213C1 (de) 1999-06-19 2001-05-23 Sihn Jr Kg Wilhelm Schlitzantenne für Kraftfahrzeuge
FI114254B (fi) * 2000-02-24 2004-09-15 Filtronic Lk Oy Tasoantennirakenne

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1091358A (fr) * 1954-01-13 1955-04-12 France Etat Antenne à large bande passante
EP0531800A1 (fr) * 1991-08-26 1993-03-17 Hughes Aircraft Company Source à fente évasée asymétriquement

Also Published As

Publication number Publication date
DE50213971D1 (de) 2009-12-10
US20040104858A1 (en) 2004-06-03
US7019705B2 (en) 2006-03-28
EP1454381A1 (fr) 2004-09-08
ATE447245T1 (de) 2009-11-15
JP2005513847A (ja) 2005-05-12
WO2003052873A1 (fr) 2003-06-26

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