EP1518296B1 - Mehrband-planarantenne - Google Patents

Mehrband-planarantenne Download PDF

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Publication number
EP1518296B1
EP1518296B1 EP03761621A EP03761621A EP1518296B1 EP 1518296 B1 EP1518296 B1 EP 1518296B1 EP 03761621 A EP03761621 A EP 03761621A EP 03761621 A EP03761621 A EP 03761621A EP 1518296 B1 EP1518296 B1 EP 1518296B1
Authority
EP
European Patent Office
Prior art keywords
radiator
frequency
slots
antenna
reflector
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
EP03761621A
Other languages
English (en)
French (fr)
Other versions
EP1518296A1 (de
Inventor
Daniel Jacquinot
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.)
Antennes Ft a Responsabilite Ltee Ste
Antennes FT Sarl
Original Assignee
Antennes Ft a Responsabilite Ltee Ste
Antennes FT Sarl
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
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Application filed by Antennes Ft a Responsabilite Ltee Ste, Antennes FT Sarl filed Critical Antennes Ft a Responsabilite Ltee Ste
Publication of EP1518296A1 publication Critical patent/EP1518296A1/de
Application granted granted Critical
Publication of EP1518296B1 publication Critical patent/EP1518296B1/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
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0414—Substantially flat resonant element parallel to ground plane, e.g. patch antenna in a stacked or folded configuration
    • 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
    • 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
    • H01Q5/378—Combination of fed elements with parasitic 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

Definitions

  • the invention relates to a flat antenna with a wide bandwidth, of the patch antenna type, in particular for the transmission and / or reception of UHF / SHF signals of the digital terrestrial television and / or analogue type, comprising a reflector tuned to the low frequency of the bandwidth and a radiator connected to a specific power supply and radiating at a frequency F 1 , this radiator further having a slot tuned to a frequency F 2 .
  • terrestrial television signals whether digital and / or analog, have a frequency of approximately between 470 and 870 MHz. Precisely, unless using highly complex technical means, prior to the invention this frequency band could not be covered through a single patch type flat antenna.
  • planar antenna of patch type
  • a simple planar reflector made of conductive material, above which extends, separated by a dielectric substrate
  • a radiator in the form of a conductive plate whose dimensions are determined for, under the effect of a specific power supply, allow it to radiate at a specific frequency.
  • the reflector has increased dimensions relative to the radiator, it has the function of expanding the bandwidth of the antenna downwards. More precisely, this reflector, through its line of coupling with the radiator, is tuned to a low frequency, which is less than the radiation frequency of the radiator.
  • this slot antenna has the effect of expanding the bandwidth.
  • a conductive layer antenna and a dual-band transmission device including this antenna.
  • This comprises a dielectric substrate having on its lower and upper faces a conductive layer, the first constituting a mass, the reflector and the second a patch, the radiator, both of which are connected here by a short-circuit band. extending on a wafer surface of the substrate.
  • the antenna further comprises a coupling system comprising a primary coupling line formed by two slots extending parallel in the chip and constituting, respectively, two primary coupling slots, while a secondary coupling line formed by a third slot is connected to one of its two primary coupling slots.
  • the patch further includes a separator assembly including at least one separating slot so as to reveal two zones constituting, respectively, a primary resonance zone and a secondary resonance zone.
  • the separator assembly may be defined by a U-shaped separating slot, remaining at a distance from the edges of the pellet and having two branches connected to one another. by a base.
  • each of the separating slots constituting the U is the same, while the parallel end slots have a similar length.
  • the coupling between, on the one hand, the standing wave of each of the two primary and secondary resonances and, on the other hand, the waves radiated in space is mainly done on a or more of the edges of the patch or splits or through these slots. It is specified that in the embodiment comprising a U-shaped separation slot, the connecting slot constitutes an additional secondary radiative slot to the two other parallel slots.
  • the present invention by questioning the preconceived ideas in the field, has been able to provide a solution to the problem mentioned above.
  • the improvement of the bandwidth of a patch antenna through the present invention is significant since it makes it possible to obtain a widening of this band of the order of 100% with respect to the low frequency.
  • the invention relates to a flat antenna with a wide bandwidth, of the patch antenna type, in particular for the transmission and / or reception of UHF / SHF signals of the digital terrestrial television and / or analogue type, comprising a reflector granted at the low frequency of the bandwidth and a radiator connected to a specific power supply and radiating at a frequency F 1 , this radiator further having a slot tuned to a frequency F 2 , characterized in that the radiator comprises at least one other slot tuned to a different frequency F 3 at the frequencies F 1 and F 2 , these slots being connected by a defined link slot capable of constituting a coupling line for providing an electromagnetic current at each of the frequency slots F 2 and F 3 .
  • the slots that connect the connection slot, defining a coupling line are geometrically identical, while the supply of the radiator occurs asymmetrically between the slots to ensure the radiation of the latter according to the frequencies, respectively, F2 and F3 different.
  • these slots are defined of different dimensions to ensure their radiation at different frequencies F2 and F3.
  • the antenna comprises, disposed above the radiator and parallel to the latter, at least one parasitic element with smaller dimensions for broadening the bandwidth at the top of the band.
  • the reflector comprises at least two of its opposite peripheral edges folded in a plane which is perpendicular to it in the direction of the radiator.
  • the opposite peripheral edges folded are those crossing the plane of polarization of the radiator.
  • these folded peripheral edges extend in planes, which relative to the corresponding edges of the radiator, are at a distance smaller than that separating the plane of this radiator and that of the reflector.
  • the advantages of the present invention consist in a substantial widening of the bandwidth of a patch antenna, ie of the order of 100% of its low radiation frequency.
  • the present invention relates to a high bandwidth flat antenna for transmitting and / or receiving UHF and / or SHF signals, in particular digital terrestrial television signals. and / or analog.
  • This antenna 1 comprises a plane reflector 2 of metal material above which extends a radiator 3, also metallic, connected to a specific power supply 4.
  • a dielectric substrate separates the radiator 3 from the reflector 2 taking into account, in this respect, that the distance P between the latter is dependent on the permittivity of this substrate.
  • the radiator 3 in the form of a single-sided printed circuit 3a on a dielectric substrate 3b whose permittivity ⁇ r is greater than 1, it is possible to reduce the dimensions of the reflector 2 and, consequently, to obtain a smaller antenna.
  • the dimensions of the latter can be further reduced by folding, in a plane perpendicular to the radiator 3, at least two of the peripheral edges opposed 5, 6 of this reflector 2.
  • the radiator 3 comprises at least two slots 7, 8 tuned to frequencies, respectively, F 2 and F 3 different from each other and with respect to the radiation frequency F 1 of the radiator 3. Particularly these slots 7, 8 extend parallel to the polarization plane of the radiator 3.
  • the slots 7, 8 may be defined in different dimensions to ensure their radiation at different frequencies F2 and F3.
  • their radiation at different frequencies F2 and F3 results from an asymmetrical power supply between said slots, knowing that the invention still extends to a solution combining one and the other of these modes of production.
  • each of these slots 7, 8 are connected through a bonding slot 9 defined capable of constituting a coupling line.
  • a gain at the top of the band is still obtained by the superposition to the radiator 3 of at least one parasitic element 10, with dimensions smaller than the radiator 3 and extending substantially above the slots 7, 8.
  • the latter define, in the radiator 3, an electric polarization plane Pe and a magnetic polarization plane Pm perpendicular thereto.
  • the opposite peripheral edges 5, 6 of this reflector 2 which are folded at right angles towards the radiator are those cut by this magnetic plane Pm.
  • the radiator 3 is loaded by bringing the folded peripheral edges 5, 6 of the reflector 2 closer to the corresponding edges 11, 12 of this radiator 3 by a distance d less than the aforementioned distance P. This results in a lowering of the low radiation frequency of the antenna 1.
  • this solution contributes, again, to a reduction in the size of the antenna 1 since the dimensions of the latter are determined by those of the reflector 2 moreover tuned to the low frequency of the bandwidth of said antenna 1.
  • the present invention must be considered as a clear progress in the technical field considered, since this range of frequencies of television signals Digital terrestrial and / or analog could only be hitherto covered by the use of several flat patch antennas.

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Waveguide Aerials (AREA)
  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)

Claims (7)

  1. Breitband-Planarantenne der Art Patch-Antenne, insbesondere für die Sendung und/oder für den Empfang von UHF/SHF-Signalen der Art terrestrisches Digital- und/oder Analogfernsehen, umfassend einen Reflektor (2), der auf die niedrige Frequenz der Durchlassbreite abgestimmt ist, und einen Strahler (3), der an eine spezifische Speisung (4) angeschlossen ist und nach einer Frequenz F1 strahlt, wobei dieser Strahler (3) noch eine Spalte (7) aufweist, die auf eine Frequenz F2 abgestimmt ist, dadurch gekennzeichnet, daß der Strahler (3) noch wenigstens eine andere Spalte (8) umfaßt, die auf eine von den Frequenzen F1 und F2 unterschiedene Frequenz F3 abgestimmt ist, wobei diese Spalten (7, 8) durch eine Verbindungsspalte (9) verbunden seien, die geeignet vorgeschen ist, um eine Kopplungslinie zu bilden, um einen elektromagnetischen Strom in jeder dieser Spalten (7, 8) mit Frequenz F2, F3 zu sichern.
  2. Planarantenne der Art Patch-Antenne nach Anspruch 1, dadurch gekennzeichnet, daß die Spalten (7, 8) mit verschiedenen Maßen gebildet sind, um ihre Ausstrahlung nach unterschiedlichen Frequenzen F2 und F3 zu sichern.
  3. Planarantenne der Art Patch-Antenne nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Ausstrahlung über unterschiedliche Frequenzen F2 und F3 der Spalten (7, 8) durch eine spezifische Speisung (4) des Strahlers (3) gesichert ist, die asymmetrisch zwischen den besagten Spalten (7, 8) angeordnet ist.
  4. Planarantenne der Art Patch-Antenne nach irgendeinem der vorgehenden Ansprüche, dadurch gekennzeichnet, daß sie, über dem Strahler (3) und parallel zu diesem Letzteren angeordnet, wenigstens einen Sekundärstrahler (10) mit kleineren Maßen für eine Erweiterung der Durchlaßbreite in oberem Bereich der Bandbreite umfaßt.
  5. Planarantenne der Art Patch-Antenne nach irgendeinem der vorgehenden Ansprüche, dadurch gekennzeichnet, daß der Reflektor (2) wenigstens zwei von seinen gegenüberliegenden Umkreisrändern (5, 6) umfasst, die in Richtung auf den Strahler (3) in einer Ebene, die ihm senkrecht ist, umgebogen sind.
  6. Planarantenne der Art Patch-Antenne nach Anspruch 5, dadurch gekennzeichnet, daß die gegenüberliegenden Umkreisränder (5, 6), die in Richtung auf den Strahler (3) umgebogen sind, diejenigen sind, die die Polarisationsebene (Pm) dieses Letzteren kreuzen.
  7. Flachantenne der Art Patch-Antenne nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß die Umkreisränder (5, 6) des Reflektors (2) sich in einer Entfernung (d) befinden, die kleiner ist als die Entfernung (p), die diejenige ist, die die Ebene dieses Reflektors (2) hinsichtlich jener des besagten Strahlers (3) trennt, um diesen aufzuladen und eine Senkung der niedrigen Ausstrahlungsfrequenz der Antenne (1) zu sichern.
EP03761621A 2002-06-28 2003-06-17 Mehrband-planarantenne Expired - Lifetime EP1518296B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0208113A FR2841688B1 (fr) 2002-06-28 2002-06-28 Antenne plane du type patch, notamment pour l'emission et/ou la reception de signaux de television terrestre numerique et/ou analogique
FR0208113 2002-06-28
PCT/FR2003/001829 WO2004004066A1 (fr) 2002-06-28 2003-06-17 Antenne plane multibande

Publications (2)

Publication Number Publication Date
EP1518296A1 EP1518296A1 (de) 2005-03-30
EP1518296B1 true EP1518296B1 (de) 2006-08-23

Family

ID=29724989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03761621A Expired - Lifetime EP1518296B1 (de) 2002-06-28 2003-06-17 Mehrband-planarantenne

Country Status (8)

Country Link
US (1) US7151491B2 (de)
EP (1) EP1518296B1 (de)
CN (1) CN100449866C (de)
AT (1) ATE337628T1 (de)
AU (1) AU2003263244A1 (de)
DE (1) DE60307848D1 (de)
FR (1) FR2841688B1 (de)
WO (1) WO2004004066A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2887078B1 (fr) * 2005-06-10 2007-08-10 Calcem Eurl Sarl Antenne plane de television
US8139624B1 (en) * 2005-08-25 2012-03-20 Rockwell Collins, Inc. System and method for providing multiple ad hoc communication networks on a hardware channel
CN100391048C (zh) * 2005-12-09 2008-05-28 上海大学 超宽带高增益印刷缝隙天线
US20100039327A1 (en) * 2008-08-12 2010-02-18 Chung-Wen Yang Digital television antenna
WO2010028309A2 (en) * 2008-09-05 2010-03-11 Schneider Richard E Smart antenna systems suitable for reception of digital television signals
FR2956251B1 (fr) 2010-02-05 2012-12-28 Khamprasith Bounpraseuth Antenne plane a doublet replie
WO2011141860A1 (en) 2010-05-14 2011-11-17 Assa Abloy Ab Wideband uhf rfid tag
US9748656B2 (en) 2013-12-13 2017-08-29 Harris Corporation Broadband patch antenna and associated methods
EP3625852B1 (de) * 2017-05-15 2023-04-19 Sony Group Corporation Patch-antenne für millimeterwellenkommunikation
CN108039591B (zh) * 2017-11-17 2020-05-12 复旦大学 具有谐波抑制能力的双线极化整流天线
EP3918663B1 (de) * 2019-02-25 2023-06-21 Huawei Technologies Co., Ltd. Antennenstruktur mit zwei anschlüssen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1263745A (en) * 1985-12-03 1989-12-05 Nippon Telegraph & Telephone Corporation Shorted microstrip antenna
US4692769A (en) * 1986-04-14 1987-09-08 The United States Of America As Represented By The Secretary Of The Navy Dual band slotted microstrip antenna
US6195048B1 (en) * 1997-12-01 2001-02-27 Kabushiki Kaisha Toshiba Multifrequency inverted F-type antenna
FR2811479B1 (fr) * 2000-07-10 2005-01-21 Cit Alcatel Antenne a couche conductrice et dispositif de transmission bi-bande incluant cette antenne
DE10064128A1 (de) * 2000-12-21 2002-07-25 Kathrein Werke Kg Patch-Antenne für den Betrieb in mindestens zwei Frequenzbereichen

Also Published As

Publication number Publication date
CN1666382A (zh) 2005-09-07
DE60307848D1 (de) 2006-10-05
AU2003263244A1 (en) 2004-01-19
CN100449866C (zh) 2009-01-07
FR2841688A1 (fr) 2004-01-02
ATE337628T1 (de) 2006-09-15
EP1518296A1 (de) 2005-03-30
US7151491B2 (en) 2006-12-19
WO2004004066A1 (fr) 2004-01-08
US20060164303A1 (en) 2006-07-27
FR2841688B1 (fr) 2006-06-30

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