EP2559102A1 - Direktionale linear polarisierte breitbandantenne mit hoher polarisationsreinheit - Google Patents
Direktionale linear polarisierte breitbandantenne mit hoher polarisationsreinheitInfo
- Publication number
- EP2559102A1 EP2559102A1 EP11715189A EP11715189A EP2559102A1 EP 2559102 A1 EP2559102 A1 EP 2559102A1 EP 11715189 A EP11715189 A EP 11715189A EP 11715189 A EP11715189 A EP 11715189A EP 2559102 A1 EP2559102 A1 EP 2559102A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna
- polarization
- center
- elements
- printed circuit
- 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
Links
- 230000010287 polarization Effects 0.000 title claims abstract description 22
- 230000004807 localization Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005388 cross polarization Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Classifications
-
- 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
- H01Q11/10—Logperiodic antennas
- H01Q11/105—Logperiodic antennas using a dielectric support
-
- 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
- H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
- H01Q9/27—Spiral antennas
-
- 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
- H01Q11/10—Logperiodic antennas
-
- 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
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
- H01Q5/15—Resonant antennas for operation of centre-fed antennas comprising one or more collinear, substantially straight or elongated active elements
Definitions
- the present invention relates to a linear polarization antenna, directive, broadband, high polarization purity.
- the subject of the present invention is a high-purity polarization antenna (a frequency band that may be greater than the decade) of the printed circuit type, this antenna being able to be integrated into a bi-polarization antenna, and allowing, when it is used in a localization system, to improve the localization performance, particularly at non-zero sites.
- this antenna In the case where this antenna is of the rectilinear polarization type, its theoretical co-polarization is defined with respect to the geometry of the radiating circuit. In practice, real co-polarization differs from theoretical co-polarization. Polarization purity is defined as the difference between the theoretical polarization and the real co-polarization. It can be measured using the "co-polarization level / cross polarization level" ratio in the geometrical definition plane of the antenna. If the antenna is perfect, this ratio is infinite. In practice, what we are looking for is a ratio generally between 15 dB (for a log-periodic antenna) and 20 dB (for a "sinuous" antenna).
- the antenna according to the invention is a linear polarization antenna, directive, broadband and high purity polarization, at least one pair of radiating elements printed on a face of a circuit printed, the two elements being symmetrical to each other with respect to the center of the antenna and delimited in their angular extension by two virtual lines passing through the center of the antenna, and it is characterized in that it has radiating elements printed on the other side of the support, these elements being identical to those of the first face, and being deduced by a rotation of 180 ° about an axis passing through the center of the antenna and which is the bisector of the angle at the center of said pair of elements, this central angle being that formed by said two virtual lines, this rotation being followed by a translation over a distance equal to the thickness of the printed circuit.
- Figure 1 is a plan view of an antenna of the prior art
- Figure 2 is a plan view of an antenna according to the present invention.
- the present invention is described below with reference to an antenna operating in rectilinear polarization and "sinuous" radiating elements inscribed in a circle, but it is understood that it is not limited to such a type of antenna. antenna, and that it applies to any antenna with linear radiating elements, radiating in linear polarization, wired geometry, which one seeks to improve the purity of polarization, antenna whose co-polarization is supposed to be rectilinear, broad band or no, which can, if necessary, be the basic element for the design of a bipolarization antenna.
- the antenna type from which the invention is derived is generally that realized using a single-sided printed circuit manufacturing technology.
- An example of such an antenna 1 of the prior art is shown in Figure 1. It comprises essentially two radiating elements or sinuous branches 2, 3 symmetrical to each other with respect to the geometric center O of the assembly. It is well heard that this antenna could include two other branches.
- the layout of the radiating elements of a so-called "sinuous" antenna is well known, for example according to US Pat. No. 4,658,262, it will not be described in more detail here. It will be specified only here that the two arms 2, 3 are symmetrical to one another with respect to the center 0. These two arms are delimited in their angular extension a by two virtual lines A, B passing through the center O of the 'antenna.
- the antenna 4 of the invention is of the double-sided printed circuit type.
- Figure 2 has been shown as if the printed circuit on which the radiating elements are formed was transparent.
- the first face which is assumed to be the anterior face, has the same branches 2, 3 as those of FIG. 1.
- the posterior face of the printed circuit comprises the branches 4,5, whose shapes and dimensions are identical to those of FIGS. branches 2, 3.
- the location of the branches 4, 5 is deduced from that of the branches 2, 3 by rotation of 180 ° about an axis C passing through the center O and which is the bisector of the angle in the center has branches 2, 3.
- rotation 180 ° about an axis C passing through the center O and which is the bisector of the angle in the center has branches 2, 3.
- the outline of the branches 4, 5 is obtained by rotation of the branches 2, 3 around the center O by an angle of value equal to (180 ° +), then by the same translation.
- the outline of the branches 4, 5 is obtained by rotation of the branches 2, 3 around the center O by an angle of value equal to (180 ° +), then by the same translation.
- only one of the pairs is considered for rotation.
- the invention makes it possible to improve the polarization purity of the antenna by more than 10 dB relative to the geometry on a single-sided printed substrate. More generally, it makes it possible to obtain an improvement in the polarization purity of all the geometries of planar wire antennas (log-periodic and other type antennas). Applied to bipolarisation antennas, it improves the coupling between the two radiating elements.
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Details Of Aerials (AREA)
- Waveguide Aerials (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1001549A FR2958804B1 (fr) | 2010-04-13 | 2010-04-13 | Antenne a polarisation rectiligne, directive, large bande, a grande purete de polarisation. |
PCT/EP2011/055419 WO2011128243A1 (fr) | 2010-04-13 | 2011-04-07 | Antenne a polarisation rectiligne, directive, large bande, a grande purete de polarisation |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2559102A1 true EP2559102A1 (de) | 2013-02-20 |
EP2559102B1 EP2559102B1 (de) | 2014-01-22 |
Family
ID=43513949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11715189.4A Active EP2559102B1 (de) | 2010-04-13 | 2011-04-07 | Direktionale linear polarisierte breitbandantenne mit hoher polarisationsreinheit |
Country Status (5)
Country | Link |
---|---|
US (1) | US8976073B2 (de) |
EP (1) | EP2559102B1 (de) |
ES (1) | ES2450125T3 (de) |
FR (1) | FR2958804B1 (de) |
WO (1) | WO2011128243A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI499127B (zh) | 2012-05-11 | 2015-09-01 | Wistron Corp | 天線結構 |
KR101667969B1 (ko) * | 2015-12-04 | 2016-10-20 | 경남정보대학교 산학협력단 | 저입력 임피던스 2-암 슬롯 시누어스 안테나 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2454401A1 (de) * | 1974-11-16 | 1976-05-20 | Licentia Gmbh | Breitbandantenne kleiner abmessungen |
US4658262A (en) * | 1985-02-19 | 1987-04-14 | Duhamel Raymond H | Dual polarized sinuous antennas |
US6211839B1 (en) * | 1988-08-22 | 2001-04-03 | Trw Inc. | Polarized planar log periodic antenna |
US5146234A (en) * | 1989-09-08 | 1992-09-08 | Ball Corporation | Dual polarized spiral antenna |
US6731248B2 (en) * | 2002-06-27 | 2004-05-04 | Harris Corporation | High efficiency printed circuit array of log-periodic dipole arrays |
US6922179B2 (en) * | 2003-11-17 | 2005-07-26 | Winegard Company | Low profile television antenna |
US7609220B2 (en) * | 2005-05-09 | 2009-10-27 | The Regents Of The University Of California | Channelized log-periodic antenna with matched coupling |
-
2010
- 2010-04-13 FR FR1001549A patent/FR2958804B1/fr not_active Expired - Fee Related
-
2011
- 2011-04-07 ES ES11715189.4T patent/ES2450125T3/es active Active
- 2011-04-07 EP EP11715189.4A patent/EP2559102B1/de active Active
- 2011-04-07 US US13/641,031 patent/US8976073B2/en active Active
- 2011-04-07 WO PCT/EP2011/055419 patent/WO2011128243A1/fr active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2011128243A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2958804A1 (fr) | 2011-10-14 |
ES2450125T3 (es) | 2014-03-24 |
EP2559102B1 (de) | 2014-01-22 |
US8976073B2 (en) | 2015-03-10 |
WO2011128243A1 (fr) | 2011-10-20 |
FR2958804B1 (fr) | 2012-04-27 |
US20130207864A1 (en) | 2013-08-15 |
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