WO2000079649A1 - Dispositif d'emission et/ou de reception de signaux - Google Patents
Dispositif d'emission et/ou de reception de signaux Download PDFInfo
- Publication number
- WO2000079649A1 WO2000079649A1 PCT/FR2000/001707 FR0001707W WO0079649A1 WO 2000079649 A1 WO2000079649 A1 WO 2000079649A1 FR 0001707 W FR0001707 W FR 0001707W WO 0079649 A1 WO0079649 A1 WO 0079649A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- radiating element
- network
- radiating
- patch
- circular
- Prior art date
Links
- 230000010287 polarization Effects 0.000 claims abstract description 43
- 230000005540 biological transmission Effects 0.000 claims 2
- 230000005855 radiation Effects 0.000 description 16
- 238000000034 method Methods 0.000 description 9
- 239000000758 substrate Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000005284 excitation Effects 0.000 description 3
- 230000003071 parasitic effect Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 241000256683 Peregrinus Species 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/02—Details
- H01Q19/021—Means for reducing undesirable effects
- H01Q19/028—Means for reducing undesirable effects for reducing the cross polarisation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
- H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
- H01Q11/08—Helical antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/065—Patch antenna array
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/067—Two dimensional planar arrays using endfire radiating aerial units transverse to the plane of the array
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
- H01Q21/245—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction provided with means for varying the polarisation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
Definitions
- the present invention relates to a device for transmitting and / or receiving electromagnetic waves, more particularly an antenna known by the term "printed antenna".
- a “printed antenna” in English “microstrip antenna” will be called an antenna produced in so-called “microstrip” technology comprising a radiating element, typically a “patch”, a slot, etc., or a network of such elements, the number of elements depending on the gain sought.
- This type of antenna is used in particular as a primary source at the focal point of a lens or a parabola.
- printed antennas are increasingly used in many wireless communications systems (wireless local area networks, access networks whether terrestrial or satellite, etc.).
- wireless communications systems wireless local area networks, access networks whether terrestrial or satellite, etc.
- the object of the invention is to provide a device for receiving and / or transmitting signals comprising a high quality printed antenna of circular or linear polarization over an enlarged frequency band and over a wide angle sector.
- the subject of the present invention is a device for transmitting and / or receiving electromagnetic waves comprising at least one radiating element for radiating a circular or linear polarization of given direction, characterized in that it comprises at least one dimensioning means and positioned in relation to the radiating element so that radiate, at the frequency of the radiating element, a circular or linear polarization in the opposite direction to that of the radiating element and the phase of which is adjusted to compensate for the crossed component of the radiating element.
- the means dimension and positioned with respect to the radiating element so as to radiate, at the frequency of the radiating element, a circular or linear polarization of opposite direction to that of the radiating element and whose the phase is adjusted to compensate for the crossed component of the radiating element consisting of a radiating element of the traveling wave type such as a helix or a dielectric rod associated with polarizers.
- FIG. 1 a and FIG. 1 b are views schematic in perspective of a network of a printed antenna constituted by a network of “patches” respectively according to the prior art and according to an embodiment of the present invention
- FIG. 2 schematically shows the total radiated field resulting from the radiation of the printed antenna and the helix, this total field being decomposed on an orthogonal base consisting of right and left circular polarizations
- FIGS. 3a to 3e are schematic perspective views of different embodiments of the present invention
- FIG. 4 is a schematic perspective view of a preferred embodiment of the present invention
- Figure 5 is u no curve giving the ellipticity rate as a function of the frequency in the case of a printed network alone or of a network provided with means in accordance with the present invention
- FIGS. 6a and 6b present the radiation diagram of the radiating elements respectively in the case of a single network and in the case of a network provided with means in accordance with the present invention
- FIG. 7 is a schematic sectional view of another embodiment of the present invention.
- FIGS. 1 to 6 relate to a printed antenna adapted to transmit / receive a right or left circular polarization while the embodiment of the figure 7 relates to a printed antenna whose radiating elements can receive a circular polarization or a linear polarization.
- FIG. 1a there is shown in perspective an embodiment of a printed antenna which can receive means according to the present invention. More specifically, on a substrate 1 of given permittivity, the underside of which is covered with a metal layer 2 forming a ground plane, a network of n “patches” has been produced, more particularly a network comprising four parallel branches of three "Patches” 3 1 f 3 ',, 3', 3 2 , 3 ' 2 , 3 " 2 , 3 3 , 3' 3 , 3" 3 , 3 4 , 3 ' 4 , 3 " 4 connected in series, l 'assembly being connected to a supply network referenced 4, made in microstrip technology.
- the "patches” are designed and supplied to radiate and / or receive a wave with circular polarization.
- the printed antenna thus produced radiates an imperfect circular polarization of given direction, as will be explained with reference to the Figure 2.
- to improve the circular polarization is provided near the network of "patches” means sized and positioned relative to the network of "patches” so as to radiate at the frequency of the “patch” network, a circular polarization in the opposite direction to that of the “patch” network to compensate for the crossed component of the radiating element. These means will hereinafter be called means of compensation.
- radiating elements of the traveling wave type are provided, more particularly propellers 4 1 t 4 2 , 4 3 , 5. ,, 4, 5 2 , 4 ' 2 , 5 3 , 4 "4" 2 , 4 " 3 which are planted, as shown in section AA, in the substrate 1 and are not connected to an excitation network.
- the simplest method consists in connecting the network of propellers having a reverse circular polarization to that radiated by the network of “patches”, to an excitation circuit and to regulate the characteristics of the propellers so as to obtain a diagram of radiation identical to the radiation pattern of the network of “patches” to be compensated.
- Rimprimée represents the field radiated by a printed antenna consisting of the network of "patches” alone. This radiated field has an unwanted cross component.
- This crossed component radiated by the printed antenna excites the network of propellers which in turn radiates a Rhélice field whose phase is adjusted by rotation of the propeller around its axis so that it comes to oppose completely or partly to the cross component of the printed antenna, thereby improving the purity of the circular polarization radiated by the printed antenna.
- FIG. 3a a radiating element of a printed antenna constituted by a "patch" 11 has been produced on a substrate 11.
- the compensation means are constituted by a network of four propellers 12 17 12 2 , 12 3 , 12 4 planted in the substrate.
- the radiation diagram of the propellers 12 1 f 12 2 , 12 3 , 12 4 was simulated, by connecting the propellers alone to an excitation network, and the propellers were designed in a known manner, so that their radiation pattern is equivalent to the radiation pattern of the "patch” and that their polarization is opposite to that of the patch network. Then, the propellers 12. ,, 12 2 , 12 3 , 12 4 were rotated around their axis so that their radiation comes to oppose the crossed component radiated by the "patch". On the other hand, in known manner, the “patch” 11 is connected by the line 13 made in microstrip technology to a supply circuit of known type.
- FIG. 3b shows another embodiment of the printed antenna, namely a network of four “patches” 20 1? 20 2 , 20 3 , 20 4 connected to a supply circuit of known type.
- the “patch” 20. is connected to the “patch” 20 4 by a microstrip line and the “patch” 20 2 is connected to the “patch” 20 3 by another microstrip line, the two lines being connected together and at the output of the supply circuit 30.
- the compensation means consists of a propeller 21 positioned at the center of the network of the four "patches”. This propeller is dimensioned and rotated around its axis using the same principles as mentioned above.
- FIG. 3d another embodiment of the present invention is shown.
- the printed antenna consists of four networks of four “patches” of the type described in FIG. 3b.
- the cross component of each “patch” is compensated for by helices positioned at the four corners of the “patch”. More specifically and as shown in FIG. 3d, the “patch” 1 1 is surrounded by the propellers 12 ⁇ 12 2 , 12 3 , 12 4 .
- FIG. 3c represents another embodiment in which four networks of four “patches” of the type represented in FIG. 3b are used.
- the means compensation is constituted by a propeller 21 positioned as in the case of Figure 3.
- an additional propeller 22 is placed at point C center of the 4x4 network "patches”.
- FIG. 3e An additional embodiment of a device according to the present invention is shown in Figure 3e.
- the compensation means are constituted by a network of propellers.
- the propellers are positioned in the middle of the sides of each "Patch".
- the “patch” 40 is surrounded by four helices 41 ,, 41 2 , 41 3 , 41 4 placed respectively in the middle of each of the four sides, the “patch” 40 'is also surrounded by four propellers 41 2 41 5 , 41 6 , 41 7 and so on for the other “patches”.
- the radiation patterns of the “patches” and of the propellers are obtained as mentioned above.
- the adjustment of the amplitude and of the phase of the radiated field by the compensation means can be obtained by adjusting one or more of the elements below. -after:
- a compensation element namely a means sized and positioned relative to the 'radiating element so as to radiate at the frequency of the radiating element a circular polarization in the opposite direction to that of the radiating element to compensate for the crossed component of the radiating element, in accordance with the present invention.
- a printed antenna operating at 12 GHz. This printed antenna is formed by a network of four “patches” 102 ,, 102 2 , 102 3 , 102 4 produced on a substrate 100 provided on its underside with a metal layer 101 forming a ground plane. As shown in FIG.
- the “patch” 102 and the “patch” 102 2 are connected together to the supply circuit produced in microstrip technology. More specifically, the “patch” 102, is connected to the point C by a length L1 while the “patch” 102 2 is connected to the point C by a length L2. Similarly, the “patch” 102 4 is connected to point C by a length L4 and the “patch” 102 3 is connected to point C by a length L3. The points C and C are connected to the input A of the supply circuit respectively by a length L5 and a length L6.
- the compensation means is constituted by a radiating element of the traveling wave type, more particularly by a propeller 103 which is planted in the substrate at the center of the network, namely symmetrically with respect to the four "patches” 102 ,, 102 2 , 102 3 , 102 4 .
- a radiating element of the traveling wave type more particularly by a propeller 103 which is planted in the substrate at the center of the network, namely symmetrically with respect to the four "patches" 102 ,, 102 2 , 102 3 , 102 4 .
- the ellipticity rate is represented as a function of the frequency of the printed antenna of FIG. 4.
- the frequency band of the printed antenna goes from 430 MHz, in the absence of the propeller, to 628 MHz in the presence of a correctly sized propeller.
- the increase in the frequency bandwidth of the network provided by the parasitic propeller in the case of this particular embodiment is 46%.
- FIGS. 6a and 6b show the improvement in the quality of the circular polarization as a function of the angle of observation relative to the main direction of the beam. This is given by the radiation diagrams of the printed network in the presence of a parasitic helix, namely FIG. 6b and in the absence of the parasitic helix, see FIG. 6a. These radiation diagrams show a marked improvement in the quality of circular polarization in a large area of angles.
- FIG. 7 shows another embodiment of the compensation means.
- the printed antenna is constituted in a known manner by a network of “patches” 112 ,, 112 2 produced on a substrate 110 provided with a ground plane 111.
- This “patch” network can radiate a linear (for example horizontal linear) or circular (for example straight circular) polarization.
- a radiating element of the traveling wave type constituted by a dielectric rod 114 also called polyrod in English, mounted in a base 113.
- the polyrod is dimensioned to radiate a polarization orthogonal to that of the patch network (in this case vertical linear in the case of a linear polarization or left circular in the case of a circular polarization). Simulations carried out with a device of this type have shown that the unwanted crossed component radiated by the network of “patches” excites the polyrod which in turn radiates a field whose phase can be adjusted so that it comes s oppose in whole or in part to the crossed component of the printed antenna thus improving the purity of the circular polarization radiated by the antenna.
- the invention makes it possible to obtain a printed antenna radiating a wave with circular or linear polarization over a widened frequency band.
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001505111A JP4295938B2 (ja) | 1999-06-21 | 2000-06-21 | 信号送信及び/若しくは受信装置 |
DE60008104T DE60008104T2 (de) | 1999-06-21 | 2000-06-21 | Anordnung zur übertragung und/oder zum empfang von signalen |
EP00951625A EP1188202B1 (fr) | 1999-06-21 | 2000-06-21 | Dispositif d'emission et/ou de reception de signaux |
AU64504/00A AU6450400A (en) | 1999-06-21 | 2000-06-21 | Device for transmitting and/or receiving signals |
US09/980,551 US6618012B1 (en) | 1999-06-21 | 2000-06-21 | Device for transmitting and/or receiving signals |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9907827 | 1999-06-21 | ||
FR99/07827 | 1999-06-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000079649A1 true WO2000079649A1 (fr) | 2000-12-28 |
Family
ID=9547047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2000/001707 WO2000079649A1 (fr) | 1999-06-21 | 2000-06-21 | Dispositif d'emission et/ou de reception de signaux |
Country Status (8)
Country | Link |
---|---|
US (1) | US6618012B1 (fr) |
EP (1) | EP1188202B1 (fr) |
JP (1) | JP4295938B2 (fr) |
CN (1) | CN1202591C (fr) |
AU (1) | AU6450400A (fr) |
DE (1) | DE60008104T2 (fr) |
ES (1) | ES2215702T3 (fr) |
WO (1) | WO2000079649A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1475860A1 (fr) * | 2003-05-06 | 2004-11-10 | France Telecom | Dispositif formant antenne, capteur ou sonde électromagnétique |
WO2007060148A1 (fr) * | 2005-11-24 | 2007-05-31 | Thomson Licensing | Rangees d’antennes a double polarisation circulaire |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE517564C2 (sv) * | 1999-11-17 | 2002-06-18 | Allgon Ab | Antennanordning för en bärbar radiokommunikationsanordning, bärbar radiokommunikationsanordning med sådan antennanordning och metod för att driva nämnda radiokommunikationsanordning |
JP2004056281A (ja) * | 2002-07-17 | 2004-02-19 | Alps Electric Co Ltd | 無線lan用ダイバーシティアンテナ |
US7675471B2 (en) * | 2004-03-05 | 2010-03-09 | Delphi Technologies, Inc. | Vehicular glass-mount antenna and system |
DE102011088438A1 (de) | 2011-12-13 | 2013-06-13 | Robert Bosch Gmbh | Handwerkzeugvorrichtung |
KR101768802B1 (ko) * | 2016-03-11 | 2017-08-16 | 주식회사 한신 | 마이크로스트립 안테나 |
DE102017200129A1 (de) | 2017-01-05 | 2018-07-05 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Ndip-Antenne |
CN108111179B (zh) * | 2017-12-19 | 2019-07-23 | 温州大学瓯江学院 | 具有可调相位的信号发生器 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4031537A (en) * | 1974-10-23 | 1977-06-21 | Andrew Alford | Collinear dipole array with reflector |
GB2226186A (en) * | 1988-11-15 | 1990-06-20 | Kokusai Denshin Denwa Co Ltd | An offset reflector antenna |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2627330B1 (fr) * | 1988-02-12 | 1990-11-30 | Alcatel Espace | Antenne multifrequence, utilisable notamment dans le domaine des telecommunications spatiales |
FR2640431B1 (fr) * | 1988-12-08 | 1991-05-10 | Alcatel Espace | Dispositif rayonnant multifrequence |
US5381157A (en) * | 1991-05-02 | 1995-01-10 | Sumitomo Electric Industries, Ltd. | Monolithic microwave integrated circuit receiving device having a space between antenna element and substrate |
US5892483A (en) * | 1996-03-15 | 1999-04-06 | Ericsson Inc. | Dual antenna arrangement for portable transceiver |
JP3580654B2 (ja) * | 1996-12-04 | 2004-10-27 | 京セラ株式会社 | 共用アンテナおよびこれを用いた携帯無線機 |
SE511450C2 (sv) * | 1997-12-30 | 1999-10-04 | Allgon Ab | Antennsystem för cirkulärt polariserade radiovågor innefattande antennanordning och gränssnittsnätverk |
US6229488B1 (en) * | 2000-09-08 | 2001-05-08 | Emtac Technology Corp. | Antenna for receiving signals from GPS and GSM |
-
2000
- 2000-06-21 WO PCT/FR2000/001707 patent/WO2000079649A1/fr active Search and Examination
- 2000-06-21 JP JP2001505111A patent/JP4295938B2/ja not_active Expired - Lifetime
- 2000-06-21 ES ES00951625T patent/ES2215702T3/es not_active Expired - Lifetime
- 2000-06-21 EP EP00951625A patent/EP1188202B1/fr not_active Expired - Lifetime
- 2000-06-21 CN CN00809273.7A patent/CN1202591C/zh not_active Expired - Lifetime
- 2000-06-21 US US09/980,551 patent/US6618012B1/en not_active Expired - Lifetime
- 2000-06-21 DE DE60008104T patent/DE60008104T2/de not_active Expired - Lifetime
- 2000-06-21 AU AU64504/00A patent/AU6450400A/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4031537A (en) * | 1974-10-23 | 1977-06-21 | Andrew Alford | Collinear dipole array with reflector |
GB2226186A (en) * | 1988-11-15 | 1990-06-20 | Kokusai Denshin Denwa Co Ltd | An offset reflector antenna |
Non-Patent Citations (1)
Title |
---|
LOMAGLIO F S ET AL: "ORIGINAL PARASITIC ELEMENTS FOR CROSS-POLARIZATION CONTROL IN REFLECTOR ANTENNAS", INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION,US,NEW YORK, IEEE, vol. -, 7 May 1990 (1990-05-07), pages 164 - 167, XP000166558 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1475860A1 (fr) * | 2003-05-06 | 2004-11-10 | France Telecom | Dispositif formant antenne, capteur ou sonde électromagnétique |
FR2854739A1 (fr) * | 2003-05-06 | 2004-11-12 | France Telecom | Dispositif formant antenne, capteur ou sonde electromagnetique |
WO2007060148A1 (fr) * | 2005-11-24 | 2007-05-31 | Thomson Licensing | Rangees d’antennes a double polarisation circulaire |
US8081135B2 (en) | 2005-11-24 | 2011-12-20 | Thomson Licensing | Antenna arrays with dual circular polarization |
Also Published As
Publication number | Publication date |
---|---|
DE60008104T2 (de) | 2004-08-05 |
AU6450400A (en) | 2001-01-09 |
DE60008104D1 (de) | 2004-03-11 |
EP1188202A1 (fr) | 2002-03-20 |
CN1382314A (zh) | 2002-11-27 |
EP1188202B1 (fr) | 2004-02-04 |
ES2215702T3 (es) | 2004-10-16 |
CN1202591C (zh) | 2005-05-18 |
JP4295938B2 (ja) | 2009-07-15 |
JP2003524938A (ja) | 2003-08-19 |
US6618012B1 (en) | 2003-09-09 |
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