CN1551410A - Multiband planar antenna - Google Patents
Multiband planar antenna Download PDFInfo
- Publication number
- CN1551410A CN1551410A CNA2004100385049A CN200410038504A CN1551410A CN 1551410 A CN1551410 A CN 1551410A CN A2004100385049 A CNA2004100385049 A CN A2004100385049A CN 200410038504 A CN200410038504 A CN 200410038504A CN 1551410 A CN1551410 A CN 1551410A
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- Prior art keywords
- radiant element
- sheet
- metal
- patches
- planar antenna
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- 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.)
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- 239000000758 substrate Substances 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims description 36
- 229910052751 metal Inorganic materials 0.000 claims description 36
- 239000000126 substance Substances 0.000 claims description 24
- 230000005855 radiation Effects 0.000 claims description 19
- 239000004020 conductor Substances 0.000 claims description 9
- 239000000696 magnetic material Substances 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 2
- 230000001427 coherent effect Effects 0.000 claims 1
- 239000003989 dielectric material Substances 0.000 abstract 1
- 239000012141 concentrate Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 241001481833 Coryphaena hippurus Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007476 Maximum Likelihood Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
Images
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
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
- H01Q9/40—Element having extended radiating surface
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
- H01Q1/3275—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted on a horizontal surface of the vehicle, e.g. on roof, hood, trunk
-
- 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
- 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
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
- H01Q9/32—Vertical arrangement of element
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Details Of Aerials (AREA)
- Waveguide Aerials (AREA)
Abstract
A multiband planar antenna comprising at least one radiant element constituted by a triangular or polygonal-shaped metallic patch (1) with one or two coplanar projecting parts (2) with strips, printed on a substrate of thin dielectric material (3). The planar radiant element is preferably vertical with respect to a ground plane (5-7) such as the roof of a vehicle. The lower vertex (8) of the metallic patch (1) is the entry of the antenna and it can be directly connected to the middle wire of the coaxial feeder or by means of a matching network.
Description
Technical field
The present invention relates to a kind of multiband planar antenna.The various dual-band antennas that are used for cell phone service on vehicle all are known.Great majority in them are one pole or the lead-type of asymmetric dipole or ribbon type, and it is installed in the front portion of approaching them or the vehicle roof of rear part edge.The radiant element of described antenna is protected by a plastic material shell with aesthetic feeling and aerodynamic function usually, and this plastic casing can be various shape and structure, even " dolphin fin (dolphin fin) " is the most frequently used one.
Background technology
When the existence of the structural obstructions thing in the near sound field (near sound field) does not influence radiation, at Antenna Positioning permission isotropism figure of acquisition on horizontal plane of vehicle roof.
The one pole or the dipole flat plane antenna that have the printing of the banded radiation arm of constant width (arm) have the restriction that a common shortcoming is impedance frequency band inherence, therefore, the unique method that obtains dual frequency operation is that they are associated with suitable matching network, but so just makes further bandwidth minimizing.
The maximally related result of these solutions is the difficulty that covers more service with identical antenna basically, and this situation and automaker's demand is inconsistent, and these automakers require with cheaply more and more continually, can realize the compact aerial of multiple service on different frequency.It typically need be covering to all cell phone service that comprise the UMTS with an antenna (Universal Mobile Telecommunications System) recently.
Summary of the invention
The objective of the invention is to realize a kind of multiband planar antenna of simple compactness with low cost, this antenna can cover the current cellular telephone service, carries out Optimizing operation at vehicle roof or on such as vehicle rear bonnet or so any enough wide metal surface simultaneously.
Another purpose is by using the planar radiation structure to obtain the bandwidth operation of " inherence ", this planar radiation structure is at conceptive " pressure " that is derived from pseudo-circular cone (pseudo-conical) radiant element, this puppet conical radiation element is mounted with dielectric substance, and be equipped be mounted with the dielectric substance cone antenna in one type of corresponding band (ground-connected strip) that is connected ground existing, described antenna is suitable for operating in the upright position of vehicle roof, and with Zendar S.p.A (42020 Montecavolo, RE Italy) name proposes in 10.09.2001, has title for also describing shown in the European patent No.01121539.9 of " low profile, cord-less aerial ".
Another purpose is the structure radiant element, makes will more business-like " patching sheet " is integrated in the radiant element, thereby receives GPS (global positioning system) satellite-signal with the amplification and the filter circuit of being correlated with.
Another purpose is to be designed for the antenna of intrinsic bandwidth operation, this operation can make two by the insertion matching network, and independently frequency band is concentrated, first narrower frequency band concentrates on around the 900MHz, and the frequency band of second broad concentrates on the frequency that covers GSM (global mobile system) and UMTS (around 1800MHz) cell phone service simultaneously.
Can realize in the following manner according to these purposes of the present invention:
A) use thin dielectric substance plate as by triangular shaped or more generally be the support that polygonal type metal patches the radiant element that sheet constitutes, it is directed as follows that this metal patches sheet: it constitutes the power supply supply centre in the summit down;
B) if require further to reduce radiant element,, use the multilayer that also comprises magnetic material then as a kind of replacement to single dielectric substance plate;
C) utilize and to be connected to the end that type metal above-mentioned patches the sheet radiant element, and be connected directly or connect by the impedance of concentrating another bring in and insert one or two coplane bands;
D) in order to extend the coplane band, slit is incorporated into the lower end of frequency band, so that can reaching, it obtains the good required size of impedance figure (Impedance pattern);
E) placing the dielectric substance plate with respect to the quadrature position place of ground level (for example top of vehicle), demonstrating one the radiation behavior that operates in the collapsible one pole of representative vertical that exists under the unlimited reflector of metal (the metallic Infinite reflector) situation that is similar to so that make the polygon metal that constitutes radiant element with its projection patch sheet;
F) consider to remove in the coplanar striplines part wherein one, thus allow will be other the sheet that patches insert perpendicular to the previous sheet that patches earlier so that the reception gps signal;
G) consider to use that two V-arrangements are placed, with have the possibility that the dielectric substance of presenting the summit jointly patches sheet, reducing overall height dimension, and give antenna aerodynamics attribute and desirable outward appearance to greatest extent;
H) consider the optimization of shape, size, configuration and planar radiation elements, to obtain physically consistent maximum bandwidth with this antenna whole dimension with respect to the position of ground level;
I) consider to use the multilayer of windshield as the thin metal of polygonal shape that constitutes radiant element is patched the possibility that sheet supports;
J) consider that insertion has matching network centralized, distributed or mixing constant (mixedconstants), to cover the old and new frequency band of cell phone service simultaneously.
Basically be by the resulting advantage of the present invention, with respect to such as vehicle roof, bonnet, door, rearview mirror, on the ground level of the finite size of the such wavelength of windshield, antenna keeps its main glacing flatness and thinness characteristic, and the electromagnetism behavior of one pole (electromagnetic behaviour), simultaneously, this antenna can adopt flat or crooked arbitrarily triangle, rectangle, trapezoidal or polygonal shape, with the satisfied requirement of making and the limiting factor of installation.
Another advantage is, the shape that can dispose the metallic conductor sheet that constitutes radiant element with its on be printed with the identical shape that patches the dielectric substance plate of sheet, thereby it is integrated to allow the butt joint inserted sheet to carry out, to be used for by using the ground level identical with radiant element to receive gps satellite signal.
The metallic conductor sheet that another advantage is to constitute radiant element can be embedded in the multilayer that thin layer constituted by dielectric matter and/or magnetic material.
Description of drawings
Below, describing the present invention in detail according to embodiment, these embodiment provide by unrestricted example reference accompanying drawing, wherein:
Fig. 1 is the perspective view that is used for the radiant element of multiband planar antenna according to the present invention in a basic embodiment, this radiant element patches sheet by the polygon metal of symmetry and two bands constitute, and these two bands are placed symmetrically with respect to vertical axis and connected ground;
Fig. 2 is the perspective view that is used for the radiant element of multiband planar antenna according to the present invention in another embodiment, and this radiant element patches sheet by the asymmetrical polygon metal that comprises a band and constitutes;
Fig. 3 is the cutaway view that constitutes the dielectric substance plate of radiant element in the embodiment of individual layer;
Fig. 4 is the cutaway view that constitutes the dielectric substance plate of radiant element in the embodiment of bilayer;
Fig. 5 shows not to have under the matching network situation, as the trend of the input reflection coefficient of the antenna frequencies function that is used to have Fig. 1 radiant element;
Fig. 6 shows and is including under the matching network situation, as the trend of the input reflection coefficient of the antenna frequencies function that is used to have Fig. 1 radiant element;
Fig. 7 shows when the 900MHz frequency, the radiation diagram trend on the horizontal section of the antenna with Fig. 1 radiant element;
Fig. 8 shows when the 1800MHz frequency, the radiation diagram trend on the horizontal section of the antenna with Fig. 1 radiant element;
Fig. 9 is the perspective view that is used for the radiant element of multiband planar antenna according to the present invention in different embodiment, and this radiant element comprises the dielectric substance plate that two V-arrangements are placed, and has the common two ends of presenting summit and band;
Figure 10 is the front view that is used for the radiant element of multiband planar antenna according to the present invention in one embodiment, and wherein the polygon metal patches the extension slit that sheet comprises corresponding band;
Figure 11 is the perspective view that is used for multiband planar antenna radiant element example according to of the present invention, and the radiant element of this multiband planar antenna is associated with the sheet that patches that is used for the GPS reception;
Figure 12 be according to of the present invention at the related and perspective view that is connected example between the radiant element that is used for multiband planar antenna and the circuit that comprises matching network, and
Figure 13 and 14 is the perspective view according to the examples Example of multiband planar antenna of the present invention, this multiband planar antenna of vehicle is set in advance, install at the top of vehicle being used for, and be equipped with the circuit that comprises matching network and be used for the sheet that patches that GPS receives.
Embodiment
With reference to the accompanying drawings, can notice according to the present invention in the middle of its basic embodiment, multiband planar antenna is made of radiant element basically, this radiant element patches sheet 1 by the thin metallic conductor of triangle or polygon and obtains, this conductor patch sheet 1 have one or two have connect ground with 2 coplane projection.
In second embodiment, on the thin plate of the dielectric substance 3 that is associated with the multilayer that also comprises magnetic material 4 thin layers, obtain having a relevant band/a plurality of metals and patch sheet 1 with 2; By means of this solution, can access the minimizing significantly of multiband planar antenna size; This will allow antenna is installed to the narrower zone rather than the top of vehicle, for example be installed to the place of the infringement beamwidths of antenna such as rearview mirror, bumper bar, door, baffler.
Band/a plurality of upper ends with 2 are connected to aforesaid metal and patch on the sheet radiant element 1, and bottom 8 directly or by means of centralized or distributed impedance is connected to following ground level 5.Band/a plurality of in-phase currents with 2 permission formation low frequency radiation figure flow to ground.
Another patches sheet 6 and can patch plate shape with the metallic conductor that constitutes radiant element 1, be printed with the identical appropriate configuration of shape that patches sheet and remove the dielectric substance plate 3 of one of them band thereon and be inserted into (Figure 11,13,15), this patches sheet 6 and is used for by using identical ground level 5 to receive gps satellite signal, and it does not comprise the low frequency performance of antenna in the extreme.
The input electric connecting member of antenna is by connecting and composing between the central conductor of the following summit 8 of planar radiation elements 1 and coaxial feeder, and the braid of this coaxial feeder ground connection is connected with ground.Can be directly or circuit centralized by comprising, distributed or that mix constant matching network 9 obtain this connection.
Thin dielectric substance plate 3 has been located to have set in advance with respect to the quadrature basically of substrate-ground level 5 and has been constituted the metal that has with 2 radiant element 1 and patch sheet, so that demonstrate one the radiation behavior that operates in the typical collapsible one pole that exists under the unlimited reflector situation of metal that is similar to.
The possible insertion of slit 10 allows to be with 2 to extend (Figure 10,13), thus the impedance figure that obtains for lower end at this band (below 900MHz), and it can reach desired size.
In another embodiment, use two dielectric substance plates 3 rather than 1; These plates are that lower end common and band is associating or is connected (Fig. 9) separately with ground by the following summit 8 of presenting that the metal of V-arrangement placement and formation radiant element 1 patches sheet; This layout allows to reduce overall height dimension, and obtains its outside maximum likelihood that covers the aerodynamics configuration.
In yet another embodiment, constitute windshield, rear window or any other shell or can be used as thin metal support polygon, that constitute radiant element 1 to the multilayer that the annex such as rearview mirror, baffler, bumper bar and analog carries out plastic support and patch sheet.
Support the configuration and the layout of plate/a plurality of plates of dielectric substance of radiant element 1 with respect to ground level 5-7, and profile and optimized dimensions allow to obtain be used for antenna applications the consistent bandwidth to greatest extent of whole useful size.
In brief, even antenna keeps its main glacing flatness characteristic and the typical electromagnetism behavior of unipole antenna on ground level, and has limited size, large scale preferably, but, with respect to top such as vehicle, bonnet, door and the such wavelength of windshield, it also may have any random plain bending triangle, rectangle, trapezoidal shape with its fit, consider from aerodynamic viewpoint that simultaneously demand and installation are constrained on the vehicle of any position and/or any kind.Except constituting patching plate shape and supporting its thin dielectric substance plate 3 of radiant element 1, the radiation behavior of this antenna is similar in the unipole antenna that operates on the plane in the same manner.
Having circuit (it is electrically connected with the input of antenna and is associated) centralized, distributed or the matching network 9 that the mixing constant is integrated is used to independently optimizing performance on two frequency bands; First narrower frequency band concentrates on around the 900MHz, and the frequency band of second broad concentrate on cover simultaneously GSM and UMTS cell phone service (1700 and 2200MHz between) frequency around.Have and do not have under the matching network situation trend as the input reflection coefficient of type antenna frequency function shown in Figure 1 relatively showing between Fig. 5 and 6, the function that can notice matching network is that two minimum values of chart on required frequency values are concentrated.
Describe and show the present invention by the embodiment of the invention that only provides as limiting examples, can carry out various modifications and not exceed its scope and field aspects such as shape, details, orientation, assembly and assemblings, this be conspicuous to those skilled in the art.
Claims (14)
1. multiband planar antenna, it is characterized in that: it comprises at least one planar radiation elements, this radiant element patches sheet (1) by the metal with triangle or any polygonal shape and forms, it is described that to patch sheet be flat or have the shape that one or two contain the coplane projection of band (2), it is printed on the substrate of thin dielectric substance (3), and described at least one planar radiation elements is orthogonal directed with respect to the ground level that has with the size of free space compatibility basically; The following summit (8) that metal patches sheet (1) is that the input that is used as antenna is electrically connected, it insulate with ground, the upper end of a described band/a plurality of bands (2) is connected to metal above-mentioned and patches sheet radiant element (1), and the lower end is connected to ground level (5-7) below above-mentioned.
2. according to the multiband planar antenna of claim 1, it is characterized in that: it is to be made of at least one radiant element, this radiant element patches sheet (1) by the metal of triangle or any polygonal shape and makes, and it is printed on the substrate of thin dielectric substance (3).
3. according to the multiband planar antenna of claim 1 and 2, it is characterized in that: it is to be made of at least one radiant element, this radiant element patches sheet (1) by the metal of triangle or any polygonal shape and makes, and it is printed on the substrate of the thin dielectric substance (3) with two coplane projections that contain band (2).
4. according to the multiband planar antenna of claim 1 and 2, it is characterized in that: it is to be made of a radiant element, this radiant element patches sheet (1) by the metal of triangle or any polygonal shape to be formed, and it is printed on the substrate of the thin dielectric substance (3) with coplane projection that contains band (2).
5. according to the multiband planar antenna of claim 1 and 2, it is characterized in that: it is to be made of a radiant element, this radiant element patches sheet (1) by the metal of triangle or any polygonal shape and makes, it is printed on the substrate of the thin dielectric substance (3) with coplane projection that contains band (2), wherein identical patches the extension slit (10) that sheet comprises identical band.
6. according to claim 1,2,4 and 5 multiband planar antenna, it is characterized in that: it is to be made of radiant element, this radiant element patches sheet (1) by the metal of triangle or any polygonal shape and makes, it is printed on the substrate of the thin dielectric substance (3) with coplane projection that contains band (2), and this metal patches sheet (1) and be associated with the sheet (6) that patches perpendicular to it, to be used to receive gps signal.
7. according to the multiband planar antenna of aforementioned any one claim, it is characterized in that: by triangle or any polygonal shape and have one or two metals that contain one/a plurality of coplane projections of band (2) and patch a radiant element or a plurality of radiant element that sheet (1) constituted and be printed on any one outside or internal interface of the multilayer that also comprises one or more magnetic materials (4) thin layer.
8. according to the multiband planar antenna of aforementioned any one claim, it is characterized in that: an end that contains the projection of band (2) is connected to described metal and patches sheet (1), and the other end directly is connected (5-7) with ground.
9. according to the multiband planar antenna of aforementioned any one claim, it is characterized in that: an end that contains one/a plurality of projections of band (2) is connected to described metal and patches sheet (1), and the other end directly is connected (5-7) by a centralized or distributed impedance with ground.
10. according to the multiband planar antenna of aforementioned any one claim, it is characterized in that: planar radiation elements (1) is engaged by quadrature basically, and be placed in the ground metal substrate (5), this ground metal substrate (5) has desired size and is connected to the top (7) of vehicle below, perhaps is connected on the corresponding additional surface of same vehicle.
11. multiband planar antenna according to claim 1-9, it is characterized in that: it comprises the dielectric substance plate 3 that two V-arrangements are placed, and the following summit (8) that the metal that constitutes coherent radiation element (1) patches the power supply supply of sheet is common, and the lower end of band (2) associating or be connected with ground separately.
12. the multiband planar antenna according to aforementioned any one claim is characterized in that: it is that following summit (8) by metal patches sheet (1) constituted with direct connection of the central conductor of the coaxial feeder with ground connection braid that the input of antenna is electrically connected.
13. multiband planar antenna according to claim 1-11, it is characterized in that: it is that following summit (8) by metal patches sheet (1) constitutes by being connected of a circuit with the central conductor of the coaxial feeder with ground connection braid that the input of antenna is electrically connected, and this circuit comprises the matching network with centralized or distributed constant (9).
14. multiband planar antenna according to aforementioned any one claim, it is characterized in that: constituting the support that the thin metal of polygonal shape of radiant element (1) patches sheet can be multilayer, and this multilayer is formed at windshield or rear window or any shell or such as the annex of the such plastic support of rearview mirror, baffler, bumper bar.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITRE2003A000042 | 2003-04-24 | ||
| IT000042A ITRE20030042A1 (en) | 2003-04-24 | 2003-04-24 | "MULTIBAND PLANAR ANTENNA" |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1551410A true CN1551410A (en) | 2004-12-01 |
Family
ID=29267159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100385049A Pending CN1551410A (en) | 2003-04-24 | 2004-04-26 | Multiband planar antenna |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1471599A1 (en) |
| CN (1) | CN1551410A (en) |
| IT (1) | ITRE20030042A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102655267A (en) * | 2011-03-03 | 2012-09-05 | Nxp股份有限公司 | Multiband antenna |
| CN103138048A (en) * | 2011-12-05 | 2013-06-05 | Nxp股份有限公司 | Multi-band antenna |
| CN103270646A (en) * | 2010-10-22 | 2013-08-28 | 匹兹堡玻璃工厂有限责任公司 | Window antenna |
| CN108475848A (en) * | 2015-12-28 | 2018-08-31 | 集美塔公司 | Devices, systems, and methods for providing modularization antenna assembly |
| CN114883784A (en) * | 2021-02-05 | 2022-08-09 | 北京小米移动软件有限公司 | Antenna mechanism, antenna array and mobile terminal |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4633605B2 (en) * | 2005-01-31 | 2011-02-16 | 富士通コンポーネント株式会社 | ANTENNA DEVICE AND ELECTRONIC DEVICE, ELECTRONIC CAMERA, ELECTRONIC CAMERA LIGHT EMITTING DEVICE, AND PERIPHERAL DEVICE |
| US7248223B2 (en) | 2005-12-05 | 2007-07-24 | Elta Systems Ltd | Fractal monopole antenna |
| US8130155B2 (en) * | 2008-07-16 | 2012-03-06 | R.A. Miller Industries, Inc. | Marine multiband antenna |
| DE102011113725A1 (en) * | 2011-09-17 | 2013-03-21 | Volkswagen Aktiengesellschaft | Multi-range antenna for a motor vehicle |
| GB2507788A (en) * | 2012-11-09 | 2014-05-14 | Univ Birmingham | Vehicle roof mounted reconfigurable MIMO antenna |
| KR102279153B1 (en) | 2015-01-23 | 2021-07-19 | 엘지이노텍 주식회사 | Shark pin antenna |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5363114A (en) * | 1990-01-29 | 1994-11-08 | Shoemaker Kevin O | Planar serpentine antennas |
| US5629712A (en) * | 1995-10-06 | 1997-05-13 | Ford Motor Company | Vehicular slot antenna concealed in exterior trim accessory |
| SE522522C2 (en) * | 1999-10-04 | 2004-02-10 | Smarteq Wireless Ab | Antenna means |
| IT1319430B1 (en) * | 2000-09-13 | 2003-10-10 | Zendar Spa | LOW PROFILE ANTENNA, WITHOUT STYLE |
| JP2002158135A (en) * | 2000-11-16 | 2002-05-31 | Tdk Corp | Electronic component |
-
2003
- 2003-04-24 IT IT000042A patent/ITRE20030042A1/en unknown
-
2004
- 2004-04-23 EP EP20040009669 patent/EP1471599A1/en not_active Withdrawn
- 2004-04-26 CN CNA2004100385049A patent/CN1551410A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103270646A (en) * | 2010-10-22 | 2013-08-28 | 匹兹堡玻璃工厂有限责任公司 | Window antenna |
| CN103270646B (en) * | 2010-10-22 | 2016-11-02 | 匹兹堡玻璃工厂有限责任公司 | Window antenna |
| CN102655267A (en) * | 2011-03-03 | 2012-09-05 | Nxp股份有限公司 | Multiband antenna |
| US9190719B2 (en) | 2011-03-03 | 2015-11-17 | Nxp B.V. | Multiband antenna |
| CN102655267B (en) * | 2011-03-03 | 2015-12-09 | Nxp股份有限公司 | Multiband antenna |
| CN103138048A (en) * | 2011-12-05 | 2013-06-05 | Nxp股份有限公司 | Multi-band antenna |
| US8928545B2 (en) | 2011-12-05 | 2015-01-06 | Nxp, B.V. | Multi-band antenna |
| CN108475848A (en) * | 2015-12-28 | 2018-08-31 | 集美塔公司 | Devices, systems, and methods for providing modularization antenna assembly |
| CN108475848B (en) * | 2015-12-28 | 2021-02-12 | 集美塔公司 | Apparatus, system, and method for providing a modular antenna assembly |
| CN114883784A (en) * | 2021-02-05 | 2022-08-09 | 北京小米移动软件有限公司 | Antenna mechanism, antenna array and mobile terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| ITRE20030042A1 (en) | 2004-10-25 |
| ITRE20030042A0 (en) | 2003-04-24 |
| EP1471599A1 (en) | 2004-10-27 |
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