DE2948953A1 - Antenna installation for road tunnel, mine shaft, etc. - has uniformly spaced insulating supports for continuous wire, with ferritic ring at each support - Google Patents

Antenna installation for road tunnel, mine shaft, etc. - has uniformly spaced insulating supports for continuous wire, with ferritic ring at each support

Info

Publication number
DE2948953A1
DE2948953A1 DE19792948953 DE2948953A DE2948953A1 DE 2948953 A1 DE2948953 A1 DE 2948953A1 DE 19792948953 DE19792948953 DE 19792948953 DE 2948953 A DE2948953 A DE 2948953A DE 2948953 A1 DE2948953 A1 DE 2948953A1
Authority
DE
Germany
Prior art keywords
ring
rings
tunnels
supports
insulating supports
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
DE19792948953
Other languages
German (de)
Other versions
DE2948953C2 (en
Inventor
Franz Dipl.-Ing. Tullnerbach Sacher
Helmut Ing. Wien Stockinger
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of DE2948953A1 publication Critical patent/DE2948953A1/en
Application granted granted Critical
Publication of DE2948953C2 publication Critical patent/DE2948953C2/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/20Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave

Landscapes

  • Details Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

The radio antenna installation is esp. for tunnels, such as traffic tunnels, mineshafts or alley-ways, and has a radiating element such as an electrically conducting wire earned by equidistant solid insulating supports. Near each of these supports is fitted a ring of ferritic material concentrically disposed around the wire. The ring is made of segments, each of which is in the form of two half-rings. The ring segments have a circular shape and have also a rectangular cross-section. The supports have a capacitative electrical characteristic whilst the segment rings are inductive, so that each installation has a defined frequency characteristic.

Description

AntennenanlageAntenna system

Zusatz zum Patent . ... ... (Aktenz.: P 29 22 261.5) Die vorliegende Erfindung betrifft eine Antennenanlage zur Funkversorgung von Tunneln, insbesondere von Bahn- und Straßentunneln, sowie Bergbaustollen, wobei gemäß dem Hauptpatent . ... ... (P 29 22 261.5) das Strahlungselement aus elektrisch leitenden Drähten besteht, die parallel gehalten und feuerfest befestigt sind. In einer vorteilhaften Ausführungsform sind zur Halterung der Drähte aus einem feuerfesten Isoliermaterial bestehende Stützen vorgesehen.Addition to the patent. ... ... (File: P 29 22 261.5) The present The invention relates to an antenna system for radio coverage in tunnels, in particular of rail and road tunnels, as well as mining tunnels, according to the main patent . ... ... (P 29 22 261.5) the radiating element made of electrically conductive wires which are held parallel and fixed in a fireproof manner. In an advantageous Embodiment are for holding the wires from a refractory insulating material existing supports provided.

Die Betriebserfahrungen mit einer solchen Anordnung haben ergeben, daß das Ubertragungsverhalten eines derartigen Strahlungselementes zufolge der kapazitiven Wirkung der Halte stützen zu einem oder mehreren Bereichen anomaler Dispersion führt, wobei dem an sich stetigen Verlauf der Dämpfungs-Frequenzkurve ein oder mehrere Bereiche unvermittelt erhöhter Dämpfung überlagert sind, die zu sehr unerwünschten Änderungen des tJbertragungsverhaltens, insbesondere zum Auftreten von Verzerrungen bei Frequenzmodulation führen.Operating experience with such an arrangement has shown that that the transmission behavior of such a radiation element according to the capacitive The effect of the stop supports leads to one or more areas of abnormal dispersion, whereby the inherently steady course of the damping frequency curve or several areas of sudden increased attenuation are superimposed on the very undesirable Changes in the transmission behavior, in particular with regard to the occurrence of distortions lead to frequency modulation.

Da besonders bei großen Tunnellängen auch die oder tragungsleitungen entsprechende Länge aufweisen und wegen der vorgegebenen mechanischen und thermischen Eigenschaften Änderungen im Material der Stützen unzulässig sind, ist es Aufgabe der vorliegenden Erfindung, diesen Ubelständen abzuhelfen und ein stetiges Ubertragungsverhalten und damit eine Verringerung oder gänzliche Ausschaltung der Verzerrungen zu bewirken.Especially in the case of long tunnels, there are also the or transmission lines Have appropriate length and because of the given mechanical and thermal Properties Changes in the material of the supports are impermissible, it is the task the present invention to remedy these inconveniences and a steady transmission behavior and thus to bring about a reduction or complete elimination of the distortions.

Diese Aufgabe wird bei einer Antennenanlage der eingangs beschriebenen Art gemäß der Erfindung in der Weise gelöst, daß jeder der das Strahlungselement bildenden elektrisch leitenden Drähte im Nahebereich der isolierenden Stützen mit je einem ihn konzentrisch umfassenden Ring aus ferritischem Material versehen ist.In the case of an antenna system, this task is described at the beginning Kind according to the invention solved in such a way that each of the radiating element forming electrically conductive wires in the vicinity of the insulating supports each is provided with a ring made of ferritic material concentrically surrounding it.

Durch die induktive Ortslast im Bereich der kapazitiv belastenden Stützen ist es - in Analogie zum Pupin-oder Krarup-Kabel - möglich, den Frequenzgang ortsabhängig zu linearisieren und die eingangs geschilderten Nachteile weitgehend aufzuheben.Due to the inductive local load in the area of the capacitively loaded It is possible - in analogy to the Pupin or Krarup cable - to support the frequency response to linearize location-dependent and largely the disadvantages outlined above to cancel.

Eine besonders vorteilhafte Ausbildung des Erfindungsgedankens besteht darin, daß die konzentrischen Ringe aus Teilstücken, vorzugsweise aus je zwei Halbringen bestehen, die auf die bereits fertiggestellte Leitung nachträglich aufzubringen sind, wodurch eine wesentliche Erleichterung des Aufbaues und der Betriebsanpassung möglich wird. Bei Verwendung von Ringen bzw. Ringsegmenten von nicht kreisförmigem Querschnitt können überdies noch Inhomogenitäten des Strahlungsfeldes durch Verdrehen um die Leiterachse ausgeglichen werden.There is a particularly advantageous embodiment of the inventive concept in that the concentric rings are made up of sections, preferably two half-rings exist to be applied subsequently to the already completed line are, whereby a substantial facilitation of the construction and the Operational adjustment becomes possible. When using rings or ring segments from Non-circular cross-section can also cause inhomogeneities in the radiation field be compensated by turning around the conductor axis.

3 Patentansprüche3 claims

Claims (3)

Patentansprüche 19 Antennenanlage zur Funkversorgung von Tunneln, insbesondere von Bahn- und Straßentunneln sowie Bergbaustollen, bei der gemäß dem Hauptpatent . ... ...Claims 19 antenna system for radio coverage of tunnels, in particular of rail and road tunnels as well as mining tunnels, in which according to the Main patent. ... ... (P 29 22 261.5) das Strahlungselement aus elektrisch leitenden Drähten besteht, die parallel gehalten und feuerfest befestigt sind, d a d u r c h g e -k e n n z e i c h n e t , daß jeder der das Strahlungselement bildenden elektrisch leitenden Drähte (D1 und D2) im Nahebereich der isolierenden Stützen (ES1 und ES2) mit je einem ihn konzentrisch umfassenden Ring aus ferritischem Material versehen ist.(P 29 22 261.5) the radiating element made of electrically conductive wires which are held parallel and fixed in a fireproof manner, d a d u r c h g e -k It should be noted that each of the electrical elements forming the radiating element conductive wires (D1 and D2) in the vicinity of the insulating supports (ES1 and ES2) each provided with a concentrically surrounding ring made of ferritic material is. 2. Antennenanlage nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß die konzentrischen Ringe aus Teilstücken, vorzugsweise aus je zwei Halbringen bestehen.2. Antenna system according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the concentric rings are made up of sections, preferably two each Half-rings exist. 3. Antennenanlage nach Anspruch 1 und 2, d a -d u r c h g e k e n n z e i c h n e t , daß die Ringe oder Ringsegmente Kreisringe oder Kreisringsegmente mit rechteckigem Querschnitt sind.3. Antenna system according to claim 1 and 2, d a -d u r c h g e k e n n z e i c h n e t that the rings or ring segments are circular rings or circular ring segments with a rectangular cross-section.
DE19792948953 1979-08-24 1979-12-05 Antenna for radio coverage in tunnels Expired DE2948953C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT570379A AT379470B (en) 1979-08-24 1979-08-24 ANTENNA FOR TUNELLN RADIO SUPPLY

Publications (2)

Publication Number Publication Date
DE2948953A1 true DE2948953A1 (en) 1981-03-26
DE2948953C2 DE2948953C2 (en) 1982-10-21

Family

ID=3578723

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792948953 Expired DE2948953C2 (en) 1979-08-24 1979-12-05 Antenna for radio coverage in tunnels

Country Status (4)

Country Link
AT (1) AT379470B (en)
CH (1) CH655410B (en)
DE (1) DE2948953C2 (en)
NL (1) NL8004777A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB641474A (en) * 1946-07-31 1950-08-16 Bendix Aviat Corp Propagation of radio waves through a tunnel
GB1471885A (en) * 1973-05-23 1977-04-27 Communications Patents Ltd Leaky cable communication systems
DE2824993A1 (en) * 1977-07-27 1979-02-01 Siemens Ag ARRANGEMENT FOR TRANSMISSION OF RADIO SIGNALS

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB641474A (en) * 1946-07-31 1950-08-16 Bendix Aviat Corp Propagation of radio waves through a tunnel
GB1471885A (en) * 1973-05-23 1977-04-27 Communications Patents Ltd Leaky cable communication systems
DE2824993A1 (en) * 1977-07-27 1979-02-01 Siemens Ag ARRANGEMENT FOR TRANSMISSION OF RADIO SIGNALS

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
H.H. Meinke, Einführung in die Elektrotechnik höherer Frequenzen, 1. Bd. 1965, S. 117-121 *

Also Published As

Publication number Publication date
CH655410B (en) 1986-04-15
ATA570379A (en) 1985-05-15
DE2948953C2 (en) 1982-10-21
AT379470B (en) 1986-01-10
NL8004777A (en) 1981-02-26

Similar Documents

Publication Publication Date Title
DE1615039A1 (en) Isolation arrangement
DE2355481A1 (en) ELECTRIC HIGH VOLTAGE DEVICE WITH DISC-SHAPED INSULATING BODY
DE2022990A1 (en) High frequency line
DE2948953A1 (en) Antenna installation for road tunnel, mine shaft, etc. - has uniformly spaced insulating supports for continuous wire, with ferritic ring at each support
DE3004737A1 (en) ENCLOSED Zinc Oxide Surge Protector
DE2007667A1 (en) High voltage line
DE2930672A1 (en) DEVICE FOR MEASURING HIGH AC VOLTAGES IN HIGH VOLTAGE SWITCHGEAR
DE3137783A1 (en) Gas-insulated three-phase busbar system
DE2843120A1 (en) ENCAPSULATED LIGHTNING PROTECTION DEVICE
DE478394C (en) Antenna system
DE19844409C2 (en) High voltage implementation
AT234771B (en) Transmitter for high-frequency electromagnetic waves for the mutual adaptation of balanced and unbalanced lines
DE869647C (en) Carrier frequency communication system
DE1465832C (en) Insulation arrangement on partially isolated high-voltage overhead lines
DE102017126913A1 (en) Blitzstromableiteinrichtung
DE855734C (en) Insulator for antenna guy ropes
DE3141533C2 (en)
DE467322C (en) Antenna system whose supporting part or parts are divided into sections that are isolated from one another
DE2161574C3 (en) High frequency line
DE1640711A1 (en) Coaxial high-frequency cable with a spacer consisting of individual web-shaped support elements
DE3821529C2 (en)
EP0854487A2 (en) Overhead line mast with insulated mast-head
DE914640C (en) Arc protection for high voltage insulators
DE2326738C3 (en) Crossed H-Adcock antenna
DE3302658A1 (en) Guy wire arrangement

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8162 Independent application
D2 Grant after examination
8339 Ceased/non-payment of the annual fee