EP1299923B1 - Mehrband-planarantenne - Google Patents

Mehrband-planarantenne Download PDF

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Publication number
EP1299923B1
EP1299923B1 EP01954073A EP01954073A EP1299923B1 EP 1299923 B1 EP1299923 B1 EP 1299923B1 EP 01954073 A EP01954073 A EP 01954073A EP 01954073 A EP01954073 A EP 01954073A EP 1299923 B1 EP1299923 B1 EP 1299923B1
Authority
EP
European Patent Office
Prior art keywords
slot
frequency
slots
point
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.)
Expired - Lifetime
Application number
EP01954073A
Other languages
English (en)
French (fr)
Other versions
EP1299923A1 (de
Inventor
Françoise Le Bolzer
Ali Louzir
Henri Fourdeux
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.)
Thomson Licensing SAS
Original Assignee
Thomson Licensing SAS
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 Thomson Licensing SAS filed Critical Thomson Licensing SAS
Priority to EP01954073A priority Critical patent/EP1299923B1/de
Publication of EP1299923A1 publication Critical patent/EP1299923A1/de
Application granted granted Critical
Publication of EP1299923B1 publication Critical patent/EP1299923B1/de
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
    • 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
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
    • 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
    • H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/206—Microstrip transmission line antennas
    • 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
    • H01Q13/106—Microstrip slot antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364—Creating multiple current paths
    • H01Q5/371—Branching current paths
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
    • 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
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means
    • H01Q9/0457—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means electromagnetically coupled to the feed line
    • 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
    • H01Q9/06—Details
    • H01Q9/065—Microstrip dipole antennas

Definitions

  • the present invention relates to a multiband planar antenna and / or broadband, more particularly an antenna suitable for networks without mobile or domestic wires.
  • equipment laptops that can be used as a mobile phone when one is away from home and as part of household equipment home network when you get home, namely equipment cellular network / home network compatible.
  • annular slot 1 operating at a frequency f given.
  • This annular slot 1 is supplied by a line microstrip 2.
  • I'm represents the length of microstrip line necessary to make an adaptation to 50 ⁇
  • W s and W m being respectively the width of the slit and the width of the microstrip line.
  • the present invention provides a new multiband and / or broadband planar antenna structure of simple and space-saving design.
  • the subject of the present invention is a planar antenna of the type comprising a first slot dimensioned to operate at a first frequency f1 and supplied by a supply line positioned so that the slot is in a short-circuit plane of the supply line, characterized in that it comprises at least a second slot dimensioned to operate at a second frequency f2, the second slot being supplied by said supply line.
  • the second slot is in a plane power line short circuit.
  • this antenna has N slots, each dimensioned to operate at a frequency f i with i varying from 1 to N, each slot being supplied by said supply line so as to be in a short-circuit plane of the feeder.
  • the two slots are cotangent in one point, the supply line being located either at this point or at the opposite of this point where the two slots are concentric.
  • each slot is chosen so that the slot resonates at said frequency f i .
  • Each slot may be of identical shape or not, symmetrical with respect to a point.
  • each slot is circular or square.
  • the slot may be provided with means allowing the radiation of a circularly polarized wave. These means are constituted, for example, by notches. In this case, depending on the position of the supply line, a wave with right or left circular polarization will be generated.
  • a dual-frequency antenna in accordance with the present invention comprises a first annular slot 10 whose radius R1 is chosen to operate at a first fundamental frequency f1. Therefore, the radius R1 is equal to ⁇ s1 / 2 ⁇ where ⁇ s1 is the wavelength in the slot 10.
  • the slot 10 has a width W S1 .
  • the antenna also includes a second annular slot 11 whose radius R2 is chosen to operate at a second fundamental frequency f2, the radius R2 being equal to ⁇ s2 / 2 ⁇ .
  • f2 is chosen close to 2f1 but other relationships can be envisaged.
  • the two annular slots 10 and 11 are supplied by a single microstrip line 12.
  • the length Im ' represents the line length necessary to adapt the Zant impedance to 50 ⁇ which is approximately 300 ⁇ .
  • This line has a width Wm.
  • the length of the line so that the slit is in a short circuit plane is equal to k ⁇ m / 4 with ⁇ m the wavelength below the microstrip line at the frequency defined for the slot and k an odd whole number.
  • FIG 5 there is shown an embodiment operating in tribandes.
  • three annular slots 21, 22, 23 operating at fundamental frequencies f1, f2, f3 are powered by the same microstrip line 20.
  • the length l'm is used for adaptation to 50 ⁇ .
  • FIGS. 6a, 6b and 6c another mode of production of a planar antenna in accordance with the present invention.
  • the two annular slots R'1 and R'2 come confuse in one point. They are sized to operate at neighboring frequencies.
  • the antenna has two annular slots R'1 and R'2 cotangent at point A.
  • the two slots R'1 and R'2 are supplied by a common line on the side of point A.
  • the two slots lie substantially in a line short-circuit plane feed and lengths l'm and I'm 'are chosen from tette so that l'm equal to k ⁇ 'm / 4 where ⁇ 'm is the wavelength under the microstrip line and k an odd whole number and l'm 'allows adaptation to 50 ⁇ .
  • the two slots annulars are cotangent at point B and are supplied by a line supply side opposite point B.
  • the lengths I "m2 and I" m1 are chosen so that the slots R'1 and R'2 lie substantially in a short-circuit plane of the power line.
  • the length I "m ' is chosen to realize adaptation to 50 ⁇ .
  • the two annular slots R'1 and R'2 are concentric. They are supplied by a line common power supply in microstrip technology for example.
  • the lengths Im1 and Im2 are chosen so that the slots R'1 and R'2 are find close to a line short circuit plan and lm 'allows adaptation to 50 ⁇ .
  • the slot is constituted by a square 30 supplied by a line 31.
  • the slot 1 is circular. It is supplied by a line 2 and it radiates a linearly polarized wave.
  • the circular slot 1 ' is provided with notches 1 ". It is fed by a line 2.
  • the slot radiates a circular polarization which can be left or right depending on the positioning of the line.
  • the slit must comply with the design rules given above. In general, the slit must be symmetrical with respect to a point and present a length such that it radiates at the chosen fundamental frequency.
  • the present invention has been described with supply lines produced in microstrip technology, however the lines can be produced in coplanar technology.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Waveguide Aerials (AREA)
  • Details Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Claims (7)

  1. Mehrband-Planarantenne mit einem ersten Schlitz (10) vom Typ mit einem ringförmigen Schlitz oder mit einer zu einem Punkt symmetrischen Form auf einem Substrat, dessen Umfang für die Funktion bei einer ersten Frequenz f1 bemessen ist (R1, R'1);
    gekennzeichnet durch
    wenigstens einen zweiten Schlitz (11) vom Typ mit einem ringförmigen Schlitz oder mit einer zu einem Punkt symmetrischen Form, dessen Umfang (R2, R'2) für die Funktion bei einer zweiten Frequenz f2 bemessen und mit dem ersten Schlitz (10) verschachtelt ist, wobei der erste und der zweite Schlitz durch eine gemeinsame Speiseleitung (12) (Im1, Im2; I'm; I'm1, I'm2) gespeist werden, die derart positioniert ist, dass sie jeden Schlitz in einer Kurzschlussebene der Speiseleitung kreuzt.
  2. Antenne nach Anspruch 1, dadurch gekennzeichnet, dass sie N verschachtelte Schlitze (21, 22, 23) vom Typ mit einem ringförmigen Schlitz oder mit einer zu einem Punkt symmetrischen Form enthält, dass der Umfang jedes Schlitzes bemessen ist für eine Arbeit bei einer Frequenz fi , wobei sich i von 1 bis N ändert, dass jeder Schlitz durch die Speiseleitung (20) derart gespeist wird, dass er sich in der Kurzschlussebene der Speiseleitung befindet.
  3. Antenne nach Anspruch 1, dadurch gekennzeichnet, dass die Schlitze (R'1, R'2) cotangent sind in einem Punkt mit der Speiseleitung, die die Schlitze in diesem Punkt oder auch in einem diametral gegenüberliegenden Punkt kreuzt.
  4. Antenne nach Anspruch 1, dadurch gekennzeichnet, dass die Schlitze konzentrisch sind.
  5. Antenne nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Schlitze mit Mitteln (1") versehen sind, die die Strahlung einer zirkularpolarisierten Welle ermöglichen.
  6. Antenne nach Anspruch 5, dadurch gekennzeichnet, dass die Mittel durch in dem Schlitz ausgebildete Kerben gebildet sind.
  7. Antenne nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Speiseleitung eine Mikrostreifenleitung oder eine in Coplanartechnologie ausgebildete Leitung ist.
EP01954073A 2000-07-13 2001-07-11 Mehrband-planarantenne Expired - Lifetime EP1299923B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP01954073A EP1299923B1 (de) 2000-07-13 2001-07-11 Mehrband-planarantenne

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
FR0009378 2000-07-13
FR0009378 2000-07-13
EP00460072 2000-12-19
EP00460072 2000-12-19
PCT/FR2001/002233 WO2002007261A1 (fr) 2000-07-13 2001-07-11 Antenne planaire multibandes
EP01954073A EP1299923B1 (de) 2000-07-13 2001-07-11 Mehrband-planarantenne

Publications (2)

Publication Number Publication Date
EP1299923A1 EP1299923A1 (de) 2003-04-09
EP1299923B1 true EP1299923B1 (de) 2004-10-13

Family

ID=26073646

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01954073A Expired - Lifetime EP1299923B1 (de) 2000-07-13 2001-07-11 Mehrband-planarantenne

Country Status (11)

Country Link
US (1) US6914574B2 (de)
EP (1) EP1299923B1 (de)
JP (1) JP5010794B2 (de)
KR (1) KR100777792B1 (de)
CN (1) CN100358183C (de)
AT (1) ATE279795T1 (de)
AU (1) AU2001276428A1 (de)
DE (1) DE60106452T2 (de)
ES (1) ES2230344T3 (de)
MX (1) MXPA02012930A (de)
WO (1) WO2002007261A1 (de)

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USD809490S1 (en) 2008-02-29 2018-02-06 Antennas Direct, Inc. Antenna
USD867347S1 (en) 2008-02-29 2019-11-19 Antennas Direct, Inc. Antenna
US8368607B2 (en) * 2007-12-05 2013-02-05 Antennas Direct, Inc. Antenna assemblies with antenna elements and reflectors
USD881172S1 (en) 1975-11-03 2020-04-14 Antennas Direct, Inc. Antenna and base stand
US7609222B2 (en) * 2007-12-05 2009-10-27 Antennas Direct, Inc. Antenna assemblies with antenna elements and reflectors
USD868045S1 (en) 2008-02-29 2019-11-26 Antennas Direct, Inc. Antenna
US20140292597A1 (en) 2007-12-05 2014-10-02 Antennas Direct, Inc. Antenna assemblies with tapered loop antenna elements
US10957979B2 (en) 2018-12-06 2021-03-23 Antennas Direct, Inc. Antenna assemblies
USD666178S1 (en) 2008-02-29 2012-08-28 Antennas Direct, Inc. Antenna
US7839347B2 (en) * 2007-12-05 2010-11-23 Antennas Direct, Inc. Antenna assemblies with tapered loop antenna elements and reflectors
FR2833764B1 (fr) * 2001-12-19 2004-01-30 Thomson Licensing Sa Dispositif pour la reception et/ou l'emission de signaux electromagnetiques polarises circulairement
FR2840456A1 (fr) * 2002-05-31 2003-12-05 Thomson Licensing Sa Perfectionnement aux antennes planaires de type fente
FR2861222A1 (fr) * 2003-10-17 2005-04-22 Thomson Licensing Sa Antenne planaire bi-bande
FR2866987A1 (fr) * 2004-03-01 2005-09-02 Thomson Licensing Sa Antenne planaire multibandes
JP2006033652A (ja) * 2004-07-21 2006-02-02 Japan Radio Co Ltd マルチバンドアンテナ
JP4325532B2 (ja) * 2004-10-19 2009-09-02 日立電線株式会社 アンテナ及びその製造方法並びに同アンテナを用いた無線端末
US7659860B2 (en) * 2004-12-27 2010-02-09 Telefonaktiebolaget L M Ericsson (Publ) Triple polarized slot antenna
KR100781933B1 (ko) * 2005-12-16 2007-12-04 주식회사 이엠따블유안테나 단일 급전 단층 2 중 대역 원편파 안테나
FR2903216A1 (fr) * 2006-06-28 2008-01-04 Thomson Licensing Sa Perfectionnement aux supports de donnees tels que les supports optiques
US20080291345A1 (en) * 2007-05-23 2008-11-27 Antennas Direct, Inc. Picture frame antenna assemblies
KR100932008B1 (ko) * 2007-07-04 2009-12-15 전남대학교산학협력단 이중 공진 특성을 갖는 ｃｐｗ급전 슬롯 안테나
US11929562B2 (en) 2007-12-05 2024-03-12 Antennas Direct, Inc. Antenna assemblies with tapered loop antenna elements
US7990335B2 (en) * 2007-12-05 2011-08-02 Antennas Direct, Inc. Antenna assemblies with antenna elements and reflectors
US7868809B2 (en) * 2007-12-21 2011-01-11 International Business Machines Corporation Digital to analog converter having fastpaths
US7710302B2 (en) * 2007-12-21 2010-05-04 International Business Machines Corporation Design structures and systems involving digital to analog converters
USD815073S1 (en) 2008-02-29 2018-04-10 Antennas Direct, Inc. Antenna
USD883264S1 (en) 2008-02-29 2020-05-05 Antennas Direct, Inc. Antenna
USD883265S1 (en) * 2008-02-29 2020-05-05 Antennas Direct, Inc. Antenna
USD804459S1 (en) 2008-02-29 2017-12-05 Antennas Direct, Inc. Antennas
USD920962S1 (en) 2008-02-29 2021-06-01 Antennas Direct, Inc. Base stand for antenna
US8542153B2 (en) 2009-11-16 2013-09-24 Skyware Antennas, Inc. Slot halo antenna device
US8797227B2 (en) 2009-11-16 2014-08-05 Skywave Antennas, Inc. Slot halo antenna with tuning stubs
USD664126S1 (en) 2010-08-26 2012-07-24 Antennas Direct, Inc. Antenna
JP6480751B2 (ja) * 2015-02-18 2019-03-13 パナソニック株式会社 アレイアンテナ装置
USD824884S1 (en) 2015-10-08 2018-08-07 Antennas Direct, Inc. Antenna element
US10128575B2 (en) 2015-09-02 2018-11-13 Antennas Direct, Inc. HDTV antenna assemblies
USD827620S1 (en) 2015-10-08 2018-09-04 Antennas Direct, Inc. Antenna element
US9761935B2 (en) 2015-09-02 2017-09-12 Antennas Direct, Inc. HDTV antenna assemblies
USD811752S1 (en) 2015-10-08 2018-03-06 Antennas Direct, Inc. Picture frame antenna
KR102557031B1 (ko) * 2018-12-28 2023-07-19 삼성전자주식회사 금속 베젤을 이용하는 안테나 모듈 및 그것을 포함하는 전자 장치

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JPH11215218A (ja) * 1998-01-21 1999-08-06 Matsushita Electric Ind Co Ltd 携帯型無線通信装置
FR2866987A1 (fr) * 2004-03-01 2005-09-02 Thomson Licensing Sa Antenne planaire multibandes

Also Published As

Publication number Publication date
KR20030016320A (ko) 2003-02-26
MXPA02012930A (es) 2003-10-14
ES2230344T3 (es) 2005-05-01
ATE279795T1 (de) 2004-10-15
US20040090379A1 (en) 2004-05-13
CN1441981A (zh) 2003-09-10
CN100358183C (zh) 2007-12-26
EP1299923A1 (de) 2003-04-09
DE60106452D1 (de) 2004-11-18
JP2004504747A (ja) 2004-02-12
JP5010794B2 (ja) 2012-08-29
KR100777792B1 (ko) 2007-11-22
US6914574B2 (en) 2005-07-05
AU2001276428A1 (en) 2002-01-30
DE60106452T2 (de) 2006-02-02
WO2002007261A1 (fr) 2002-01-24

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