EP1219035A2 - Dispositif et procede destine a un reseau d'antennes a caracteristique panoramique commandable - Google Patents

Dispositif et procede destine a un reseau d'antennes a caracteristique panoramique commandable

Info

Publication number
EP1219035A2
EP1219035A2 EP01923511A EP01923511A EP1219035A2 EP 1219035 A2 EP1219035 A2 EP 1219035A2 EP 01923511 A EP01923511 A EP 01923511A EP 01923511 A EP01923511 A EP 01923511A EP 1219035 A2 EP1219035 A2 EP 1219035A2
Authority
EP
European Patent Office
Prior art keywords
antenna
antenna array
diagram
difference
individual antennas
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.)
Withdrawn
Application number
EP01923511A
Other languages
German (de)
English (en)
Inventor
Hans-Ludwig BLÖCHER
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler 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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP1219035A2 publication Critical patent/EP1219035A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H01Q3/24—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 orientation by switching energy from one active radiating element to another, e.g. for beam switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H04B7/0805—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H04B7/0825—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with main and with auxiliary or diversity antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H04B7/0831—Compensation of the diversity switching process for non-uniform properties or faulty operations of the switches used in the diversity switching process

Definitions

  • the invention relates to a device and a method for an antenna array with switchable wide-angle characteristic according to the preamble of claims 1 or 7.
  • the design specification DE 27 09 758 B2 shows a radiator group arranged in a circle for finding the azimuth direction.
  • Several antennas lying on a circular sector are always combined to form a radiator sub-group and excited via a line matrix network.
  • These individual radiator sub-groups are operated in the sense of a monopulse antenna, which has a summation diagram and a single difference diagram.
  • the high angular resolution of the antenna arrangement is achieved by a suitable arrangement (here circular, for 360 ° angular coverage) of the individual radiator sub-groups and by comparing the respective received signals with one another.
  • antenna elements are operated ', wherein the individual elements are individually addressable, and can be either phase or gerismphasig driven relative to each other.
  • Figure 2 is a schematic diagram of the device according to the invention.
  • FIG. 3 shows an embodiment of the device according to the invention.
  • Figure 1 shows the antenna diagrams with respect to three different controls of the antenna elements. This is an arrangement of microstrip lines which are arranged in 4 lines and are spaced at 0.54 times the wavelength of the operating frequency. The side lobes of the antenna arrangement were suppressed by 8dB by constructive measures (tapering: Cos on Pedestal).
  • an antenna diagram with a broadside main lobe 1 is generated.
  • Another antenna diagram 2 is generated by an alternating control of the elements (+ + - -) in phase and in phase.
  • This diagram 2 has two identical main lobes which are deflected by ⁇ 30 ° from the main beam direction of the broadside main lobe 1.
  • a diagram 3 is generated with two identical main lobes which are deflected by ⁇ 60 ° from the main beam direction of the broadside main lobe 1.
  • This variability in the alignment of the main antenna lobes results in coverage of an angular range of approximately -70 ° to + 70 ° in one spatial plane when using antenna elements with main lobe widths (broadside) of approximately 30 °.
  • the entire angular range can be divided into 5 switchable sectors.
  • the antenna elements can be single radiators or antenna lines.
  • FIG. 2 shows a schematic diagram of the device according to the invention.
  • the device consists of a 3dB hybrid four-port 4, two power divider three-port 5, a switch 6 for alternating connection of the inputs and outputs of the antenna elements 8 and 9, the antenna elements (single radiators or lines) 7 to 10, and the connecting lines between the components.
  • the effective line lengths between the antenna elements 7 to 10 and the inputs of the power divider three-port 5 are the same length in order to take into account the influence of the switch 6.
  • the inputs of the 3dB hybrid four-gate 4 are with the power divider three-gate 5 without and with a ⁇ / 4- Detour line connected. This allows the sum and difference of the input signals to be tapped at the outputs of the 3dB hybrid four-port 4. This corresponds to a phase monopulse circuit.
  • the device according to the invention can be used for the transmitting as well as for the receiving operation.
  • the in-phase control (+ + + +) of the antenna elements 7 to 10 is independent of the position of the switch.
  • the communication between transmitting / receiving electronics and the antenna elements 7 to 10 take place in this case via the sum channel 1 1.
  • the in / phase control (+ + - - or + - + -) of the antenna elements 7 to 10, however, is controlled by the switch 6.
  • the communication between the transmitter / receiver electronics and the antenna elements 7 to 10 takes place in both cases of in-phase / out-of-phase control via the differential channel 12.
  • the position of the switch 6 in position A corresponds to a control pattern (+ + - -), which results in the antenna diagram 2 shown in FIG. 1.
  • the position of the switch 6 in position B consequently results in the activation pattern (+ - + -), which results in antenna diagram 3.
  • FIG. 3 One possibility of an advantageous embodiment of the device according to the invention is disclosed in FIG. 3.
  • the embodiment shown here essentially corresponds to the basic circuit diagram of the device according to the invention shown in FIG. 2, with the difference that here the double changeover switch 6 has been realized by two 3dB hybrids 13 and 14, two synchronously operated switches 15 and two line sections 16 and 17 ,
  • the length of the two line sections 16 and 17 differs such that the length difference corresponds to an odd multiple of half the wavelength of the shaft passing through the device.
  • the two 3dB hybrids 13 and 14 are connected in series, an output from 13 being directly coupled to an input from 14, while the other output from 13 is coupled via switches 15 and one of the two line sections 16 or 17.
  • the position of the switch 6 in position A corresponds to a control pattern (+ + - -), which results in the antenna diagram 2 shown in FIG. 1.
  • the position of the changeover switch 6 in position B which results in a line path which is ⁇ / 2 longer than the switch position A (180 ° phase shift), results in the control pattern (+ - + -), which results in antenna diagram 3.
  • the switch 6 can be a simple double switch 3, which allows switching between a line of length L and a line of length L + A / 2 (where ⁇ corresponds to half the operating frequency of the antenna arrangement).
  • the possibility of individual control of the arrangement according to the invention can also be used to the effect that the antenna pattern is deformed by asymmetrical control (for example: (+ + + -)) of the antenna elements 7 to 10.
  • the direction of incidence of the received wave can then be determined by comparing the change in the received signal at the output of the differential channel with the signal which was received by means of the undeformed antenna diagram.
  • a switchable 180 ° detour line can advantageously be introduced into the feed line to antenna element 9. If this detour line is then used together with the control according to switch position A, the asymmetrical antenna pattern results.
  • the device according to the invention in such a way that a single antenna element is attached next to the antenna array at a suitable distance so that one or all of the two main lobes is completely or partially suppressed in the overall arithmetic diagram of the antenna arrangement. From a comparison of the output signals of the device without taking into account the additional antenna element with the arithmetic output signal of the overall arrangement, it is then logical to conclude the direction of incidence of the received signal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

L'invention vise à permettre de couvrir facilement une grande zone angulaire dans des secteurs, de façon commandable, au moyen d'un réseau d'antennes à large lobe principal. A cet effet, un agencement d'éléments d'antenne est conçu de sorte que les éléments puissent être commandés individuellement afin que certains éléments du réseau d'antennes fonctionnent en phase et d'autres en opposition de phase. Pour déterminer la direction d'incidence d'un signal reçu, il est possible de faire fonctionner le réseau d'antennes avec un diagramme d'antenne asymétrique ou d'influer sur la symétrie au moyen d'un calcul, en utilisant un élément de réception supplémentaire.
EP01923511A 2000-03-14 2001-03-13 Dispositif et procede destine a un reseau d'antennes a caracteristique panoramique commandable Withdrawn EP1219035A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10012080A DE10012080C1 (de) 2000-03-14 2000-03-14 Antennenarray und Verfahren zum Betrieb eines Antennenarrays
DE10012080 2000-03-14
PCT/DE2001/000952 WO2001069798A2 (fr) 2000-03-14 2001-03-13 Dispositif et procede destine a un reseau d'antennes a caracteristique panoramique commandable

Publications (1)

Publication Number Publication Date
EP1219035A2 true EP1219035A2 (fr) 2002-07-03

Family

ID=7634480

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01923511A Withdrawn EP1219035A2 (fr) 2000-03-14 2001-03-13 Dispositif et procede destine a un reseau d'antennes a caracteristique panoramique commandable

Country Status (5)

Country Link
US (1) US6954176B2 (fr)
EP (1) EP1219035A2 (fr)
JP (1) JP2003527030A (fr)
DE (1) DE10012080C1 (fr)
WO (1) WO2001069798A2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10207858A1 (de) 2002-02-19 2003-08-28 Deutsche Telekom Ag Verfahren und System für die Informationsbereitstellung und Kommunikation in Fahrzeugen
US7053853B2 (en) * 2003-06-26 2006-05-30 Skypilot Network, Inc. Planar antenna for a wireless mesh network
DE202004007819U1 (de) * 2004-05-13 2005-07-14 Siemens Ag Mobiler Datenträger bzw. Schreib-Lese-Gerät mit einer Antennenanordnung mit einstellbarer Charakteristik, und dazugehörige Transportvorrichtung
US20090210008A1 (en) * 2008-02-20 2009-08-20 Life Spine, Inc. Modular spine plate with projection and socket interface
DE102012016475B4 (de) 2012-08-17 2022-09-08 Hensoldt Sensors Gmbh Verfahren zur Richtungspeilung nach dem Monopulsprinzip
EP3236278B1 (fr) * 2016-04-20 2020-12-09 Rohde & Schwarz GmbH & Co. KG Module d'antenne directionnelle

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DE2709758C3 (de) * 1977-03-07 1980-05-29 Siemens Ag, 1000 Berlin Und 8000 Muenchen Zur Azimutrichtungsfindung von einfallenden Radarsignalen dienende Strahlergruppe
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JPH02135903A (ja) * 1988-11-17 1990-05-24 Mitsubishi Electric Corp 受信用アンテナ装置
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Title
See references of WO0169798A2 *

Also Published As

Publication number Publication date
JP2003527030A (ja) 2003-09-09
US6954176B2 (en) 2005-10-11
WO2001069798A2 (fr) 2001-09-20
DE10012080C1 (de) 2001-10-31
WO2001069798A3 (fr) 2002-04-25
US20020105462A1 (en) 2002-08-08

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