WO2001017060A1 - Radiateur d'antenne flexible - Google Patents

Radiateur d'antenne flexible Download PDF

Info

Publication number
WO2001017060A1
WO2001017060A1 PCT/DE2000/002781 DE0002781W WO0117060A1 WO 2001017060 A1 WO2001017060 A1 WO 2001017060A1 DE 0002781 W DE0002781 W DE 0002781W WO 0117060 A1 WO0117060 A1 WO 0117060A1
Authority
WO
WIPO (PCT)
Prior art keywords
coil spring
antenna
antenna rod
rod
holding element
Prior art date
Application number
PCT/DE2000/002781
Other languages
German (de)
English (en)
Inventor
Uwe Militz
Heinrich Wilken
Andreas Horn
Christian Schmidt
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to DE50002213T priority Critical patent/DE50002213D1/de
Priority to EP00962224A priority patent/EP1218966B1/fr
Priority to JP2001520505A priority patent/JP4469530B2/ja
Publication of WO2001017060A1 publication Critical patent/WO2001017060A1/fr

Links

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
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/08—Means for collapsing antennas or parts thereof
    • H01Q1/085—Flexible aerials; Whip aerials with a resilient base
    • 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
    • H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
    • H01Q1/3275—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted on a horizontal surface of the vehicle, e.g. on roof, hood, trunk
    • 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
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/32—Vertical arrangement of element
    • 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
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/32—Vertical arrangement of element
    • H01Q9/34—Mast, tower, or like self-supporting or stay-supported antennas

Definitions

  • the invention is based on a flexible antenna antenna according to the preamble of the main claim.
  • the Bosch "ulti-NTR 101" antenna is already known, which represents a combination antenna for navigation, radio and radio applications.
  • This antenna comprises a coil spring into which, on the one hand, a threaded bolt for fastening to a vehicle body and, on the other hand, a retaining bolt is screwed who carries an antenna rod.
  • the flexible antenna radiator according to the invention with the features of the main claim has the advantage that the holding element has a tubular receptacle for the antenna rod and that the tubular receptacle has on its outside a thread-like profile that is screwed into the coil spring.
  • the holder of the antenna rod can be shifted into the coil spring, so that the holding element protrudes only slightly from the coil spring and a minimal distance between an outside of the coil spring or outside of the holding element on the antenna rod winding and the coil spring can be realized ,
  • the smallest possible electrical length of the coil spring the smallest possible electrical length of the
  • the holding element is particularly advantageous to design the holding element as a deformable sleeve, the inside diameter of which corresponds approximately to the outside diameter of the antenna rod, so that it is deformed on the outside when the antenna rod is introduced in such a way that the thread-like profile results.
  • a sleeve is a particularly inexpensive mass-produced article, the thread of which also results automatically from deformation when the antenna rod is inserted and thus does not have to be manufactured separately. Effort and expense in making the pliable
  • Antenna radiators can thus be reduced.
  • Another advantage is that a conduction band is inserted between the antenna rod and the tubular receptacle, which is guided inside the coil spring and bridges the coil spring electrically.
  • the functionality of the holding element is further increased in that it also serves for holding and electrical contacting of the conduction strip with the helical spring. Due to the electrical bridging of the coil spring by the conduction band, the electrical length of the flexible antenna radiator remains unchanged even when the coil spring is bent, so that the transmission and reception properties of the flexible antenna radiator are not impaired.
  • an electronic winding attached to the antenna rod is connected to the conduction band. Direct electrical contacting is thus possible without electrical intermediate connectors between the electrical winding and the conduction band, so that material can be saved.
  • the only figure shows a cross section through a flexible antenna radiator according to the invention.
  • Antenna radiator 1 which comprises a coil spring 5.
  • the coil spring 5 is mounted on a threaded bolt 40, which can be attached to a vehicle body, for example.
  • the flexible antenna radiator 1 can then be used as a vehicle antenna.
  • the threaded bolt 40 comprises a thread 45 which corresponds approximately to the winding scheme of the coil spring 5 and is screwed into the coil spring 5 at a first end 50 thereof. Since the core diameter of the thread 45 of the threaded bolt 40 is larger than the inner diameter of the helical spring 5, a positive and non-positive connection is produced in this way between the helical spring 5 and the threaded bolt 40. There is still between the helical spring 5 and the thread 45 of the threaded bolt 40 a conduction band 30 is clamped. Both the coil spring 5 and that Conduction band 30 are formed from an electrically conductive material, for example from a metal. An electrically conductive connection is thus created between the coil spring 5 and the conduction band 30 at the first end 50 of the coil spring 5.
  • a holding element 15 is inserted into the helical spring 5 at a second end 55 of the helical spring 5 opposite the first end 50 of the helical spring 5.
  • the holding element 15 comprises a tubular receptacle 20, into which an antenna rod 10 is inserted.
  • the tubular receptacle 20 has e.g. thread-like profile 25, which corresponds approximately to the winding scheme of the coil spring 5 and is screwed into the coil spring 5 at the second end 55 thereof. Since the core diameter of the thread-like profile 25 is also larger than the inside diameter of the helical spring 5, the holding element 15 is connected to the helical spring 5 in a positive and non-positive manner with the inserted antenna rod 10.
  • the holding element 15 can be designed as a deformable sleeve, for example as a tinned collar sleeve, the inside diameter of which corresponds approximately to the outside diameter of the antenna rod 10, so that when the antenna rod 10 is introduced, it is deformed on its outside in such a way that the thread-like profile 25 results.
  • a deformable sleeve for example as a tinned collar sleeve, the inside diameter of which corresponds approximately to the outside diameter of the antenna rod 10, so that when the antenna rod 10 is introduced, it is deformed on its outside in such a way that the thread-like profile 25 results.
  • the antenna rod 10 can have an increasing diameter at one of its ends. At this end, the holding element 15 is then deformed less or not at all, so that this end is not inserted into the helical spring 5 and consequently protrudes therefrom.
  • the antenna rod 10 is held in the helical spring 5 by the holding element 15 and projects into it.
  • the conduction band 30 can be inserted between the antenna rod 10 and the tubular receptacle 20.
  • the conduction band 30 was inserted into the tubular receptacle 20 before the antenna rod 10 was introduced. By inserting the antenna rod 10 into the tubular receptacle 20, the conduction band 30 is then pressed against the tubular receptacle 20.
  • both the conduction band 30 and the holding element 15 with the tubular receptacle 20 are formed from electrically conductive material, an electrically conductive connection is created in this way between the conduction band 30 and the tubular receptacle 20. Since the coil spring 5 is also made of electrically conductive material is formed, this also creates an electrically conductive connection between the conduction band 30 and the coil spring 5 in
  • the conduction band 30 is guided inside the coil spring 5. Due to the electrical contacting of the conductor strip 30 both at the first end 50 and at the second end 55 of the coil spring 5, the coil spring 5 is electrically bridged by the conductor strip 30.
  • An electrical winding 35 for example in the form of a metal wire, is applied to the antenna rod 10, which can be designed, for example, as a glass fiber rod.
  • the electrical winding 35 can already be applied to the antenna receptacle 20 on the antenna rod 10 before the antenna rod 10 is inserted.
  • the end of the winding 35 facing the helical spring 5 or the holding element 15 lies outside the helical spring 5 and also outside the tubular receptacle 20.
  • the antenna rod 10 should be inserted as far as possible into the tubular receptacle 20 be that the end of the electrical winding 35 facing the holding element 15 is spaced as little as possible from the holding element 15.
  • This end can also be soldered directly to the conduction band 30 if it protrudes sufficiently from the tubular receptacle 20 outside the coil spring 5.
  • the direct connection realized in this way between the electrical winding 35 and the conduction band 30 does not require any additional intermediate connectors and thus saves material.
  • the antenna rod 10 with the previously applied winding 35 is inserted so far into the tubular receptacle 20 that the end of the electrical winding 35 facing the coil spring 5 against the one between the antenna rod 10 and the tubular one
  • the end of the electrical winding 35 facing the coil spring 5 is in this case inside the tubular receptacle 20 and is clamped into the antenna rod 10.
  • the electrical winding 35 can also be inserted into the antenna rod 10 tubular receptacle 20 are attached to the antenna rod 10.
  • the electrical winding 35 must be inserted into the tubular receptacle 20 before the antenna rod 10 is inserted Antenna rod 10 have been applied.
  • the conduction band 30 within the helical spring 5 is selected to be long enough to be able to follow the bending and stretching movements of the helical spring 5 without tearing or impairing these movements.
  • the coil spring 5 influences the electrical length of the antenna radiator 1. If the coil spring 5 is bent or stretched, the electrical length of the increases
  • Antenna radiator 1 This influences the receivable frequency range and thus also the antenna impedance and its adaptation to other receiving circuits not shown in the figure.
  • the coil spring 5 is electrically bridged, so that the electrical length of the antenna radiator 1 is not increased when the coil spring 5 is bent or stretched in comparison to the unbent and unstretched state.
  • the threaded bolt 40 is also made of an electrically conductive material, for example a metal, so that at the first end 50 of the coil spring 5 there is an electrically conductive connection between the thread 45 of the threaded bolt 40, the coil spring 5 and that between the coil spring 5 and the thread 45 of the threaded bolt 40 is clamped conduction band 30.
  • the minimum value is the distance between that Coil spring 5 facing away from the end of the threaded bolt 40 and the end of the holding element 15 facing away from the coil spring 5.
  • the length of the coil spring 5 must be chosen so that it is not deformed when bent, but springs back into its original position. Such deformation of the coil spring 5 is prevented if the length and the outside diameter of the coil spring 5 are sufficiently large. A reduction in the length of the coil spring 5 can be achieved to a certain extent by increasing the outside diameter of the
  • Coil spring 5 to prevent deformations that occur when the coil spring 5 is bent.
  • the minimum value for the electrical length of the antenna radiator 1 is 53 mm.
  • the antenna radiator 1 is used as a lambda / 4 radiator, signals at a frequency of 1364 MHz can be transmitted and received particularly well at this minimum value for the electrical length. With such an electrical length, signals can also be sent and received in the E network at 1800 MHz.
  • a blocking coil 60 for signals of the E network must be applied to the antenna rod 10 immediately above the holding element 15, so that signals received by the electrical winding 35, for example the E network, are blocked above the blocking coil 60 and are not passed to a receiver circuit connected downstream of the threaded bolt 40.
  • a further blocking coil for, for example, signals of the D network in a frequency range around 900 MHz can be above the blocking coil 60 be applied to the antenna rod 10 for the E-network at a distance from the end of the threaded bolt 40 facing away from the coil spring 5 at the level of a quarter wavelength of the frequency of 900 MHz and thus in this example of approximately 8.3 cm.
  • the antenna radiator 1 thus enables the transmission and reception of, for example, signals in the E network between the blocking coil 60 for the E network and the end of the threaded bolt 40 facing away from the coil spring 5.
  • the antenna radiator 1 further enables the transmission and reception of, for example, signals in the D Network between the
  • the two locking coils are part of the electrical winding 35. If the length of the antenna rod 10 is appropriate, the electrical winding 35 passes over the locking coil on the side facing away from the coil spring 5 the D network, so with the electrical length achievable in this way, signals in a frequency range below the D network can also be sent and received; for example, with an appropriate electrical length, radio signals could then also be received with the antenna radiator 1.
  • the antenna radiator 1 makes it possible to reduce the minimum required electrical length to a minimum given the properties of the coil spring 5, and thus to achieve a maximum frequency range for transmitting and / or receiving.

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)

Abstract

L'invention concerne un radiateur d'antenne flexible (1) autorisant une longueur électrique minimale et par conséquent une plage de fréquence d'émission et/ou de réception élevée. Ce radiateur d'antenne flexible (1) comprend un ressort à boudin (5) servant à recevoir la tige d'antenne (10) au moyen d'un élément de retenue (15), qui d'une part porte la tige (10) et d'autre part est assemblé par vissage avec le ressort à boudin (5). Cet élément de retenue (15) présente un logement tubulaire (20) destiné à la tige d'antenne (10) et comportant, sur son côté extérieur, un profil fileté (25) qui est vissé dans le ressort à boudin (5).
PCT/DE2000/002781 1999-08-31 2000-08-17 Radiateur d'antenne flexible WO2001017060A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE50002213T DE50002213D1 (de) 1999-08-31 2000-08-17 Biegsamer antennenstrahler
EP00962224A EP1218966B1 (fr) 1999-08-31 2000-08-17 Radiateur d'antenne flexible
JP2001520505A JP4469530B2 (ja) 1999-08-31 2000-08-17 フレキシブルなアンテナ放射器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19941501.3 1999-08-31
DE19941501A DE19941501C1 (de) 1999-08-31 1999-08-31 Biegsamer Antennenstrahler

Publications (1)

Publication Number Publication Date
WO2001017060A1 true WO2001017060A1 (fr) 2001-03-08

Family

ID=7920324

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2000/002781 WO2001017060A1 (fr) 1999-08-31 2000-08-17 Radiateur d'antenne flexible

Country Status (6)

Country Link
EP (1) EP1218966B1 (fr)
JP (1) JP4469530B2 (fr)
KR (1) KR100752447B1 (fr)
DE (2) DE19941501C1 (fr)
TW (1) TW541756B (fr)
WO (1) WO2001017060A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1783862A1 (fr) * 2005-10-18 2007-05-09 Hirschmann Car Communication GmbH Antenne tige avec support en fibres de verre avec un évidement
WO2007087964A1 (fr) * 2006-02-04 2007-08-09 Hirschmann Car Communication Gmbh Barre d'antenne avec une connexion filetée au socle de l'antenne
WO2009156001A1 (fr) * 2008-06-26 2009-12-30 Robert Bosch Gmbh Antenne tige
WO2018002149A1 (fr) * 2016-06-29 2018-01-04 Hirschmann Car Communication Gmbh Procédé de production d'une antenne tige

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006006923A1 (de) * 2005-10-18 2007-04-19 Hirschmann Car Communication Gmbh Antennenrute für eine Antenne mit Glasfaserstab, der eine Ausnehmung aufweist
US8963786B2 (en) * 2012-07-11 2015-02-24 Laird Technologies, Inc. Antenna mast assemblies
WO2017153571A1 (fr) * 2016-03-11 2017-09-14 Hirschmann Car Communication Gmbh Procédé de production d'une antenne tige

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3036084A1 (de) * 1980-09-25 1982-04-29 Robert Bosch Gmbh, 7000 Stuttgart Stabantenne, insbesondere fuer ukw-rundfunkempfang
GB2148604A (en) * 1983-10-18 1985-05-30 Plessey Co Plc Monopole aerial
US4914450A (en) * 1985-01-31 1990-04-03 The United States Of America As Represented By The Secretary Of The Navy High frequency whip antenna
EP0370715A2 (fr) * 1988-11-22 1990-05-30 Harada Industry Co., Ltd. Installation d'antenne utilisant un dispositif de couplage de type vis
DE3842854A1 (de) * 1988-12-20 1990-06-21 Bosch Gmbh Robert Stabantenne fuer den fernsehempfang
FR2693038A1 (fr) * 1992-06-29 1993-12-31 Pizon Ernest Antenne émettrice et/ou réceptrice.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4179698A (en) * 1977-12-13 1979-12-18 American Antenna Corporation Mobile antenna with adjustable radiating element
US4163981A (en) * 1978-03-27 1979-08-07 Wilson Thomas J Spring tunable helical whip antenna
DE3205750C2 (de) * 1982-02-18 1990-03-29 Hans Kolbe & Co, 3202 Bad Salzdetfurth Biegestück für einen Antennenstab einer Kfz-Antenne

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3036084A1 (de) * 1980-09-25 1982-04-29 Robert Bosch Gmbh, 7000 Stuttgart Stabantenne, insbesondere fuer ukw-rundfunkempfang
GB2148604A (en) * 1983-10-18 1985-05-30 Plessey Co Plc Monopole aerial
US4914450A (en) * 1985-01-31 1990-04-03 The United States Of America As Represented By The Secretary Of The Navy High frequency whip antenna
EP0370715A2 (fr) * 1988-11-22 1990-05-30 Harada Industry Co., Ltd. Installation d'antenne utilisant un dispositif de couplage de type vis
DE3842854A1 (de) * 1988-12-20 1990-06-21 Bosch Gmbh Robert Stabantenne fuer den fernsehempfang
FR2693038A1 (fr) * 1992-06-29 1993-12-31 Pizon Ernest Antenne émettrice et/ou réceptrice.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1783862A1 (fr) * 2005-10-18 2007-05-09 Hirschmann Car Communication GmbH Antenne tige avec support en fibres de verre avec un évidement
WO2007087964A1 (fr) * 2006-02-04 2007-08-09 Hirschmann Car Communication Gmbh Barre d'antenne avec une connexion filetée au socle de l'antenne
WO2009156001A1 (fr) * 2008-06-26 2009-12-30 Robert Bosch Gmbh Antenne tige
WO2018002149A1 (fr) * 2016-06-29 2018-01-04 Hirschmann Car Communication Gmbh Procédé de production d'une antenne tige

Also Published As

Publication number Publication date
JP4469530B2 (ja) 2010-05-26
DE19941501C1 (de) 2001-06-28
EP1218966B1 (fr) 2003-05-14
EP1218966A1 (fr) 2002-07-03
KR20020025995A (ko) 2002-04-04
KR100752447B1 (ko) 2007-08-24
TW541756B (en) 2003-07-11
JP2003508949A (ja) 2003-03-04
DE50002213D1 (de) 2003-06-18

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