EP1903636A1 - Adaptive Breitbandantenne - Google Patents
Adaptive Breitbandantenne Download PDFInfo
- Publication number
- EP1903636A1 EP1903636A1 EP07116784A EP07116784A EP1903636A1 EP 1903636 A1 EP1903636 A1 EP 1903636A1 EP 07116784 A EP07116784 A EP 07116784A EP 07116784 A EP07116784 A EP 07116784A EP 1903636 A1 EP1903636 A1 EP 1903636A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna according
- outer element
- antenna
- conductive sheet
- radiating element
- 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
Images
Classifications
-
- 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
-
- 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
- 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
Definitions
- the present invention relates to a broadband antenna with radiation pattern conservation.
- VSWR voltage standing wave ratio ratio
- the most widespread topologies are: frequency independent antennas (spiral, log-periodic), broadband dipoles (elliptic, voluminal, planar ). These topologies can be used in the context of the realization of directional antennas or omnidirectional.
- the increase of the bandwidth can be achieved through the addition of a matching circuit , which can incorporate a variable number of discrete or pseudo-localized components (capacitors, inductances). , resistors, transformers, etc.).
- the patent US 4,527,163 discloses a monostrip antenna having an outer member formed by a cut sheet having a shape of Y.
- the present invention aims in particular to overcome the disadvantages mentioned above related to known antennas through an innovative construction.
- the antenna according to the invention can be used alone or as an antenna element in a network of identical or different antennas, and, depending on the case, in contact or not with a mass.
- the electrically conductive sheet forming the outer element comprises a first side defining the maximum height of the outer element and a second side, in particular perpendicular to the first, defining a base of the external element.
- the conductive sheet may for example have a right-angled triangle shape or have a third side connecting the first two and having a decreasing exponential shape.
- the conductive sheet may comprise a third side connecting the first and second sides and formed by a succession of slots.
- the minimum height of the outer element may be zero or, alternatively, non-zero.
- the conductive sheet may have for example a shape of a right triangle, truncated or not at a vertex.
- the outer element comprises a winding of a conductive sheet having an isosceles triangle shape whose base defines the maximum height of the outer element.
- the outer element may be spirally wound, in particular in a spiral with a variable pitch, in particular in a logarithmic spiral.
- the profile of the sheet constituting the outer member may be continuous or formed of a succession of plane portions.
- the winding of the conductive sheet can be made from one or other of the ends thereof, and from the inside to the outside, or from the outside to the inside with respect to the element central radiating.
- the central radiating element can be of any type.
- the radiating element may be of dipole type, in particular a printed or cylindrical dipole.
- the outer element can be considered as an impedance transformer when it is arranged to operate without contact with a mass and only by electromagnetic coupling.
- the antenna is then called "continuous profile".
- the outer element is arranged to operate in contact with a mass and can be considered as an extension of this mass.
- the antenna is then called "adaptive sleeve".
- the radiating element may be a monopole, a dipole, a helix, an ellipse or a combination of these elements.
- the radiating element may be a printed or cylindrical dipole, for example.
- All elements of the antenna can be formed from conductive materials or comprise printed circuit boards.
- the central radiating element and the outer element may be surrounded by a dielectric material, in particular by being at least partially embedded in the dielectric material.
- a sheet dielectric material wound around the central radiating element and the outer member may be used.
- the antenna according to the invention can be ultra-wide band or multi-band type.
- the broadband adaptation as well as the high efficiency of the antenna according to the invention allows the operation thereof in high power.
- the invention further allows the miniaturization of the antenna, with dimensions of the order of one-tenth of the wavelength.
- the antenna according to the invention can thus be used in all types of applications, in particular for portable or vehicular devices.
- It can in particular be used for mobile applications, especially in the field of portable devices or vehicles, or, alternatively, used in infrastructure, for example in the field of base stations.
- the invention further provides a radiation pattern selected to be directional, sectoral (antenna networking) or omnidirectional.
- FIG. 1 shows a so-called “continuous profile” antenna 1 comprising a central radiating element 2 of dipole type with a longitudinal axis X and an external element 3, partially described as a parasite, represented in dotted lines, surrounding the radiating element 2 .
- the antenna 1 illustrated comprises a dielectric material 4 in which the radiating element 2 and the outer element 3 are at least partially embedded.
- the radiating element 2 and the outer element 3 may be separated by air.
- the radiating element 2 may be of any type, for example a printed or cylindrical dipole, and have the shape of a rod.
- the outer element 3 can be considered as an adaptive load, and is not connected to any mass.
- the outer element 3 is formed of a winding of an electrically conductive sheet 5 having an isosceles triangle shape, as illustrated in FIG. 3.
- the shape of the triangle could be arbitrary.
- the sheet 5 can be wound in a spiral, for example a spiral with a variable pitch, as can be seen in FIG.
- the maximum height H of the outer element 3 measured along the X axis corresponds to the length H of the base of the isosceles triangle of the sheet 5.
- the minimum height of the outer element 3 along the winding is zero, corresponding to the vertex S of the isosceles triangle opposite the base.
- the antenna 1 may be of the ultra-wide adaptation band type.
- the outer member 3 may have other shapes.
- the outer member 3 may be formed from a conductive sheet 5 having a right-angled triangle shape.
- the conductive foil 5 may have a truncated right triangle shape, so that the outer member 3 has a minimum height along the winding which is non-zero.
- the conductive sheet 5 may alternatively have two perpendicular sides and a third side having a curvilinear shape of descending exponential type.
- the conductive sheet 5 may have a side formed by a succession of slots, the height of the outer member varying along the winding being alternately increasing and decreasing.
- This antenna 10 is of monopole type, and comprises a central radiating element 11, an outer element 12 wound around the radiating element 11 and a mass 13, to which the outer element 12 is connected.
- the outer element can be realized in one piece with the mass.
- the elements 11 and 12 may be made of conductive material or, alternatively, from printed circuit boards.
- the radiating element 11 may be of the dipolar type.
- the outer element 12 can be considered as an extension of the mass 13.
- the outer element 12 is formed of a winding of a sheet having a right-angled triangle shape.
- the outer member 12 may, of course, have another of the forms described above.
- the antenna 10 can make it possible to obtain an ultra wide adaptation band.
- the influence of the mass 13 on the operation of the antenna can be extremely low thanks to the invention.
- the radiating element 11 may be one-piece or consist of several assembled elements.
- the central radiating element and the outer element are concentric.
- the central radiating element could be eccentric with respect to the outer element.
Landscapes
- Details Of Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Support Of Aerials (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL07116784T PL1903636T3 (pl) | 2006-09-20 | 2007-09-19 | Antena z szerokim pasmem adaptacyjnym |
| SI200730026T SI1903636T1 (sl) | 2006-09-20 | 2007-09-19 | Prilagodljiva širokopasovna antena |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0653846A FR2906085B1 (fr) | 2006-09-20 | 2006-09-20 | Antenne a large bande d'adaptation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1903636A1 true EP1903636A1 (de) | 2008-03-26 |
| EP1903636B1 EP1903636B1 (de) | 2009-02-11 |
Family
ID=37989170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07116784A Active EP1903636B1 (de) | 2006-09-20 | 2007-09-19 | Adaptive Breitbandantenne |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US7825873B2 (de) |
| EP (1) | EP1903636B1 (de) |
| CN (1) | CN101150223A (de) |
| AT (1) | ATE422720T1 (de) |
| AU (1) | AU2007216789B2 (de) |
| CA (1) | CA2602920A1 (de) |
| DE (1) | DE602007000536D1 (de) |
| DK (1) | DK1903636T3 (de) |
| ES (1) | ES2321144T3 (de) |
| FR (1) | FR2906085B1 (de) |
| IL (1) | IL186015A (de) |
| PL (1) | PL1903636T3 (de) |
| SI (1) | SI1903636T1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5016464B2 (ja) * | 2007-12-07 | 2012-09-05 | 古野電気株式会社 | 2軸ジンバル構造を有するアンテナの指向誤差を低減する制御方法およびその方法を備えた制御装置 |
| US9407001B2 (en) | 2012-07-18 | 2016-08-02 | Jack Nilsson | Antenna assembly |
| EP3462536B1 (de) * | 2017-10-02 | 2021-06-30 | Nokia Shanghai Bell Co. Ltd. | Kompakte antenne |
| CN120497625B (zh) * | 2025-07-21 | 2025-11-21 | 乾元国家实验室 | 振子天线和无人机 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4527163A (en) * | 1983-04-06 | 1985-07-02 | California Institute Of Technology | Omnidirectional, circularly polarized, cylindrical microstrip antenna |
| US6339409B1 (en) * | 2001-01-24 | 2002-01-15 | Southwest Research Institute | Wide bandwidth multi-mode antenna |
| US20020113743A1 (en) * | 1999-10-15 | 2002-08-22 | Judd Mano D. | Combination directional/omnidirectional antenna |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5231412A (en) * | 1990-12-24 | 1993-07-27 | Motorola, Inc. | Sleeved monopole antenna |
| US5835065A (en) * | 1996-09-19 | 1998-11-10 | Qualcomm Incorporated | Variable length whip with helix antenna system |
| US6549175B1 (en) * | 2001-04-04 | 2003-04-15 | Lockhead Martin Corporation | Simultaneous mode matching feedline |
| TW556368B (en) * | 2001-08-24 | 2003-10-01 | Gemtek Technology Co Ltd | Improvement of planar reversed-F antenna |
| US7126557B2 (en) * | 2004-10-01 | 2006-10-24 | Southwest Research Institute | Tapered area small helix antenna |
| JP5795686B2 (ja) | 2011-06-13 | 2015-10-14 | エンパイア テクノロジー ディベロップメント エルエルシー | 多孔膜上への機能性および再使用可能電着コーティング |
-
2006
- 2006-09-20 FR FR0653846A patent/FR2906085B1/fr not_active Expired - Fee Related
-
2007
- 2007-09-07 US US11/898,001 patent/US7825873B2/en not_active Expired - Fee Related
- 2007-09-14 AU AU2007216789A patent/AU2007216789B2/en not_active Ceased
- 2007-09-18 IL IL186015A patent/IL186015A/en not_active IP Right Cessation
- 2007-09-19 DE DE602007000536T patent/DE602007000536D1/de active Active
- 2007-09-19 ES ES07116784T patent/ES2321144T3/es active Active
- 2007-09-19 SI SI200730026T patent/SI1903636T1/sl unknown
- 2007-09-19 CA CA002602920A patent/CA2602920A1/fr not_active Abandoned
- 2007-09-19 EP EP07116784A patent/EP1903636B1/de active Active
- 2007-09-19 PL PL07116784T patent/PL1903636T3/pl unknown
- 2007-09-19 AT AT07116784T patent/ATE422720T1/de not_active IP Right Cessation
- 2007-09-19 DK DK07116784T patent/DK1903636T3/da active
- 2007-09-20 CN CNA2007101519171A patent/CN101150223A/zh active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4527163A (en) * | 1983-04-06 | 1985-07-02 | California Institute Of Technology | Omnidirectional, circularly polarized, cylindrical microstrip antenna |
| US20020113743A1 (en) * | 1999-10-15 | 2002-08-22 | Judd Mano D. | Combination directional/omnidirectional antenna |
| US6339409B1 (en) * | 2001-01-24 | 2002-01-15 | Southwest Research Institute | Wide bandwidth multi-mode antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2906085A1 (fr) | 2008-03-21 |
| CA2602920A1 (fr) | 2008-03-20 |
| PL1903636T3 (pl) | 2009-07-31 |
| SI1903636T1 (sl) | 2009-06-30 |
| ATE422720T1 (de) | 2009-02-15 |
| DE602007000536D1 (de) | 2009-03-26 |
| DK1903636T3 (da) | 2009-05-11 |
| ES2321144T3 (es) | 2009-06-02 |
| US20080068281A1 (en) | 2008-03-20 |
| CN101150223A (zh) | 2008-03-26 |
| US7825873B2 (en) | 2010-11-02 |
| IL186015A (en) | 2011-07-31 |
| AU2007216789A1 (en) | 2008-04-03 |
| IL186015A0 (en) | 2008-01-20 |
| EP1903636B1 (de) | 2009-02-11 |
| AU2007216789B2 (en) | 2010-11-18 |
| FR2906085B1 (fr) | 2010-06-04 |
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