EP1645009A1 - Antenne a plaques en microruban a double polarisation - Google Patents

Antenne a plaques en microruban a double polarisation

Info

Publication number
EP1645009A1
EP1645009A1 EP03737823A EP03737823A EP1645009A1 EP 1645009 A1 EP1645009 A1 EP 1645009A1 EP 03737823 A EP03737823 A EP 03737823A EP 03737823 A EP03737823 A EP 03737823A EP 1645009 A1 EP1645009 A1 EP 1645009A1
Authority
EP
European Patent Office
Prior art keywords
patch
antenna
antenna according
patches
modifications
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.)
Ceased
Application number
EP03737823A
Other languages
German (de)
English (en)
Inventor
Markus Heiniger
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.)
Huber and Suhner AG
Original Assignee
Huber and Suhner AG
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 Huber and Suhner AG filed Critical Huber and Suhner AG
Publication of EP1645009A1 publication Critical patent/EP1645009A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • 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
    • 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
    • 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
    • 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
    • H01Q9/0428—Substantially flat resonant element parallel to ground plane, e.g. patch antenna radiating a circular polarised wave
    • 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
    • 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
    • H01Q9/0478—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with means for suppressing spurious modes, e.g. cross polarisation

Definitions

  • the present invention relates to the field of antenna technology. It relates to a dual polarized microstrip patch antenna according to the preamble of claim 1.
  • the object is achieved by the entirety of the features of claim 1.
  • the essence of the invention is to simplify the feed network by feeding at only two corners of the individual element, but at the same time to compensate for the loss of insulation caused thereby by suitable modifications of the patch.
  • a first preferred embodiment of the invention is characterized in that the modifications are arranged on the edges of the patch.
  • These modifications can comprise two notches on opposite edges of the patch, which are in particular rectangular and have a width of up to approximately 0.1 ⁇ and a depth of up to approximately 0.1 ⁇ , where ⁇ is the wavelength at the operating frequency of the antenna is.
  • the modifications can also comprise two tabs on opposite edges of the patch, which are in particular rectangular and have a width of up to approximately 0.1 ⁇ and a depth of up to approximately 0.1 ⁇ , where ⁇ is the wavelength at the operating frequency the antenna is.
  • the modifications include cut corners at the corners of the patch, the cut corners in particular having an inclination of 45 ° with respect to the edges of the patch and a length of up to approximately 0.1 ⁇ , where ⁇ is the wavelength at the operating frequency of the antenna.
  • a second preferred embodiment of the invention is characterized in that the modifications are arranged in the middle of the patch, the modifications comprising a slot running parallel to the edges of the patch, which is preferably rectangular and has a length of up to about 0, 2 ⁇ and has a width of up to about 0.05 ⁇ , where ⁇ is the wavelength at the operating frequency of the antenna.
  • the isolation is particularly favorable if, according to another embodiment of the invention, several different modifications are combined with one another in the at least one patch.
  • the edges of the patch can be arranged parallel to the x or y axis of the antenna. However, it can also be arranged with the edges rotated by 45 ° with respect to the x or y axis of the antenna.
  • a plurality of patches are arranged one above the other within the individual elements. It is advantageous if the multiple patches of a single element have different modifications and / or a different orientation of the edges with respect to the x or y axis of the antenna.
  • Another embodiment of the invention is characterized in that several individual elements are arranged next to one another in an array. It is particularly advantageous if the patches of the several individual elements of an array have different modifications and / or are oriented differently with respect to the x or y axis of the antenna.
  • a particularly simple overall structure of the antenna is obtained if the top patches are attached to the printed circuit board by means of spacers in the case of a plurality of patches arranged one above the other, and if the printed circuit board with the patches is attached to a sheet metal by means of spacers, which can be inserted into a hood that is open on one side.
  • FIG. 1 is a perspective view of the hood of a dual polarized microstrip patch antenna according to a preferred embodiment of the invention.
  • FIG. 2 shows the supporting sheet for the antenna of the preferred exemplary embodiment, which can be inserted into the hood according to FIG. 1, in a top view from above (FIG. 2a) and in a side view (FIG. 2b);
  • FIG. 3 shows the printed circuit board for the antenna of the preferred exemplary embodiment with the feed network formed on the top and 4 patches arranged in an array as the basis of the individual elements;
  • FIG. 4 shows a top view of the patch of an individual element of the antenna of the preferred exemplary embodiment arranged above the printed circuit board;
  • FIG. 5 shows in two orthogonal side views a spacer for fastening the upper patches on the printed circuit board in the antenna of the preferred exemplary embodiment
  • FIG. 6 shows the feed points for two differently oriented patches (FIGS. 6a, b) and two patches provided with modifications in the form of notches on the edges (FIGS. 6c, d);
  • FIG. 7 shows two patches provided with modifications in the form of tabs on the edges (FIGS. 7a, b), two patches provided with a central slot (FIG. 7c, d) and a patch cut off at the corners (FIG. 7e); and
  • Fig. 8 is a perspective view of the schematic structure of the antenna of the preferred embodiment with the stack of sheet metal, printed circuit board and top patches. WAYS OF CARRYING OUT THE INVENTION
  • FIG. 8 shows the greatly simplified structure of a microstrip patch antenna according to a preferred exemplary embodiment of the invention in a perspective illustration.
  • the hood 10 of the microstrip patch antenna 43 which is shown individually in FIG. 1, is omitted in FIG. 8 for the sake of clarity.
  • the antenna 43 consists essentially of a sheet 14 and four individual antenna elements or individual elements EE1, .., EE4, which are mounted on the sheet metal at a distance at the corners of a square.
  • the individual elements EE1, .., EE4 are composed of a common printed circuit board 19 with individual patches and a feed network, and in each case one patch 29 arranged above the printed circuit board 19 at a distance.
  • the upper patches 29 are decisive for increasing the bandwidth.
  • the patches on the printed circuit board 19 are fed through a feed network at two adjacent corners.
  • the feed network 44 shown in FIG. 3 with the patches 20,..., 23 is formed on the top of the printed circuit board 19.
  • the underside of the printed circuit board 19 is metallized throughout.
  • the feed network 44 comprises two branching conductor tracks 24, 25, which are connected to two adjacent corners of the patches 20, .., 23.
  • the conductor tracks 24, 25 are guided to the lower transverse side of the printed circuit board 19 and connected there with connections (not shown) which are fastened by means of holes 16 in an angled area (angle 15) of the sheet 14 and are accessible from the outside.
  • the patches 20, .., 23 are oriented differently: in the case of the patch 20, the lower left corner is connected to the conductor track 25, the lower right corner is connected to the conductor track 24. The same applies to the patch 22.
  • the patches 21 and 23 are lower right corner connected to the conductor 24, the upper right corner to the conductor 25.
  • the patches 20,.. Cut areas 28 with 45 ° orientation are provided in line areas. The notches and cut corners represent modifications of the square patch, which increase the isolation of the polarizations.
  • FIG. 4 An example of an additional patch 29 which is fixed at a distance above the patches 20,... 23 is shown in FIG. 4.
  • the patch 29 consists of a sheet which, like the sheet 14, has a thickness of e.g. 1 mm. It has fastening holes 30 which match the fastening holes 26 in the patches 20,... 23 in terms of their number and arrangement.
  • the exemplary patch 29 of FIG. 4 has two centrally located rectangular notches 31 and corners 32 cut off at all four corners. The cut corners 32 and notches 31 are also examples of modifications of the patch, which isolate the individual elements and improve polarizations among themselves. Further suitable modifications of the patches are shown in FIGS. 6 and 7 and are discussed further below.
  • the mechanical structure of the antenna of the exemplary embodiment is completed by a hood 10 according to FIG. 1.
  • the hood 10 is made of a suitable plastic material (eg Luran ®) and internally provided with bottom and side rails 12 and 13, respectively, which guide the plate 14 during insertion into the hood 10 degrees.
  • the hood 10 has an insertion opening 11 on a transverse side. The insertion opening 11 is closed by the angle 15 of the angled plate 14 when the plate 14 is inserted into the hood 10. Through in holes 16 Inserted sockets, the electrical part of the printed circuit board 19 sitting on the sheet 14 is then accessible from the outside.
  • a plurality of feet 17 are additionally stamped into the sheet 14, which support the sheet 14 on the bottom of the hood 10.
  • the upper patches 29 are attached at a distance above the printed circuit board 19 and the printed board 19 at a distance above the sheet 14 by means of spacers 33.
  • the spacers 33 shown in FIG. 5 in two side views are made of plastic (e.g. polyamide) and, in the exemplary embodiment, are designed for a distance between the patch board and the board of 5 mm. They have a dome-shaped head at the bottom and are rounded at the top. Shortly behind the head 34 and a paragraph located further up, laterally protruding latching tongues 35, 36 are arranged on the spacer 33, which, when the spacers 33 are pushed through the fastening holes 18, 18 ', 26, 30, are first pressed against the spacers 33 and then spring back and snap into place.
  • plastic e.g. polyamide
  • the patches 20,... 23 can be fed at the two adjacent corners in two ways shown in FIGS. 6a and b.
  • the edges of the patch P1 lie parallel to the x or y axis (see the coordinates shown).
  • the feeding takes place at the feeding points 37, 38.
  • the polarization is dual linear with a slant of + 45 °.
  • the edges of the patch P2 are rotated by 45 ° to the x or y axis.
  • the supply is again at the corners
  • the polarization is dual linear, namely vertical and horizontal.
  • the patches P3 and P4 in FIGS. 6c, d have two rectangular notches 39 in the middle of two opposite edges as modifications intended.
  • the dimensions of the notches 39 depend on the wavelength at the operating frequency of the antenna, ⁇ , and are preferably up to about 0.1 ⁇ in width and also up to about 0.1 ⁇ in length.
  • the patches P3 and P4 can also be rotated through 45 ° with respect to the x and y axes.
  • two rectangular tabs 40 are provided as modifications in the middle of two opposite edges.
  • the dimensions of the tabs 40 are preferably up to about 0.1 ⁇ in width and also up to about 0.1 ⁇ in length.
  • the patches P5 and P6 can also be rotated through 45 ° with respect to the x and y axes.
  • a rectangular slot 41 is provided in the middle of the patch as a modification.
  • the dimensions of the slot 41 are preferably up to about 0.05 ⁇ in width and up to about 0.2 ⁇ in length.
  • the patches P7 and P8 can be rotated through 45 ° in relation to the x and y axes.
  • the modification in patch P9 of FIG. 7e is that the corners are cut off.
  • the cut corners 42 are inclined by 45 ° and have a length of preferably up to approximately 0.1 ⁇ .
  • the patch can be rotated by 45 °.
  • the described microstrip patch antenna 43 has a very small bandwidth. This bandwidth can be increased by using additional patches, which are placed on top of the existing patches.
  • the insulation can be further improved by a suitable combination of the patch modifications.
  • the modifications of several patches arranged one above the other can be different.
  • the lower patch has notches and the upper patch Tabs.
  • the polarization is determined by the position and supply of the lower patch.
  • the upper patch can be rotated by 45 ° compared to the lower one.
  • the isolation can be improved by the patches of the individual elements having different modifications.
  • the antenna shown as an exemplary embodiment in the figures has outer dimensions (of the hood 10) of approximately 200 mm ⁇ 200 mm ⁇ 43 mm.
  • the upper patches 29 have dimensions of 50mm x 50mm x 1mm. It represents a 2x2 array with 4 individual elements, each individual element comprising two patches 20,..., 23 and 29 arranged one above the other with spacers.
  • PCB 23 Patch

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Waveguide Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

La présente invention concerne une antenne à plaques en microruban à double polarisation comprenant un ou plusieurs éléments individuels (EE1, .., EE4), chaque élément individuel (EE1, .., EE4) comprenant au moins une plaque (20, .., 23) rectangulaire, de préférence carrée, qui est disposé sur le côté supérieur d'une plaque à impression (19), la plaque à impression (19) portant un réseau d'alimentation (44) sur son côté supérieur et une métallisation sur toute la surface de son côté inférieur. L'invention permet d'obtenir une meilleure isolation pour un réseau d'alimentation simplifié. A cet effet, le réseau d'alimentation (44) est conçu de sorte que l'alimentation s'effectue uniquement au niveau de deux coins de la plaque (20, .., 23), et la/les plaque(s) (20, .., 23) présente(nt) des modifications (27, 28) qui permettent d'améliorer, par rapport à une plaque non modifiée, l'isolation entre les polarisations et/ou plusieurs éléments individuels (EE1, .., EE4).
EP03737823A 2003-07-16 2003-07-16 Antenne a plaques en microruban a double polarisation Ceased EP1645009A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2003/000481 WO2005008833A1 (fr) 2003-07-16 2003-07-16 Antenne a plaques en microruban a double polarisation

Publications (1)

Publication Number Publication Date
EP1645009A1 true EP1645009A1 (fr) 2006-04-12

Family

ID=34069942

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03737823A Ceased EP1645009A1 (fr) 2003-07-16 2003-07-16 Antenne a plaques en microruban a double polarisation

Country Status (5)

Country Link
US (1) US7327317B2 (fr)
EP (1) EP1645009A1 (fr)
CN (1) CN1802770A (fr)
AU (1) AU2003245796A1 (fr)
WO (1) WO2005008833A1 (fr)

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CN109616767A (zh) * 2018-11-28 2019-04-12 哈尔滨工业大学（威海） 一种混合角馈双极化微带贴片天线装置

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US10629999B2 (en) 2012-03-12 2020-04-21 John Howard Method and apparatus that isolate polarizations in phased array and dish feed antennas
US9407005B2 (en) * 2012-03-12 2016-08-02 John Howard Isolation of polarizations in multi-polarized scanning phased array antennas
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TWI481205B (zh) * 2013-01-21 2015-04-11 Wistron Neweb Corp 微帶天線收發器
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TWI533513B (zh) 2014-03-04 2016-05-11 啟碁科技股份有限公司 平板雙極化天線
CN104157978B (zh) * 2014-05-20 2016-08-17 电子科技大学 一种改进型角馈高隔离度双极化叠层微带天线
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WO2017078851A2 (fr) 2015-09-18 2017-05-11 Corman David W Antenne réseau à commande de phase laminaire
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Also Published As

Publication number Publication date
AU2003245796A1 (en) 2005-02-04
CN1802770A (zh) 2006-07-12
US7327317B2 (en) 2008-02-05
US20060139215A1 (en) 2006-06-29
WO2005008833A1 (fr) 2005-01-27

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