CN1147966C - Dual band antenna - Google Patents
Dual band antennaInfo
- Publication number
- CN1147966C CN1147966C CNB98812131XA CN98812131A CN1147966C CN 1147966 C CN1147966 C CN 1147966C CN B98812131X A CNB98812131X A CN B98812131XA CN 98812131 A CN98812131 A CN 98812131A CN 1147966 C CN1147966 C CN 1147966C
- Authority
- CN
- China
- Prior art keywords
- attachment strap
- frequency band
- ground plane
- plane layer
- microwave power
- 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.)
- Expired - Fee Related
Links
- 230000009977 dual effect Effects 0.000 title claims description 19
- 230000008878 coupling Effects 0.000 claims description 21
- 238000010168 coupling process Methods 0.000 claims description 21
- 238000005859 coupling reaction Methods 0.000 claims description 21
- 239000004020 conductor Substances 0.000 claims description 7
- 230000000644 propagated effect Effects 0.000 claims description 6
- 230000001902 propagating effect Effects 0.000 claims description 6
- 230000010287 polarization Effects 0.000 claims description 5
- 238000009413 insulation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 235000008529 Ziziphus vulgaris Nutrition 0.000 description 2
- 244000126002 Ziziphus vulgaris Species 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- 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
- H01Q19/10—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 using reflecting surfaces
-
- 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
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
-
- 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
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/378—Combination of fed elements with parasitic elements
-
- 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
- H01Q9/0457—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means electromagnetically coupled to the feed line
Abstract
An aperture-coupled antenna, comprising at least one antenna element including a number of substantially planar, mutually parallel radiating patches (1-3) being fed with microwave power from a feed network (6) via an aperture (5a, 5b) in a ground plane layer (4). The feed network (6) feeds microwave power in at least two separate frequency bands, including a first relatively low frequency band and a second relatively high frequency band. A first patch (2) radiates microwave power in said first frequency band and is provided with an aperture (9a, 9b) so as to couple microwave power in said second frequency band to a second patch (1), the microwave power in said second frequency band being fed from the feed network (6) via the apertures (5a, 5b; 9a, 9b) in said ground plane layer (4) and said first patch (2) to said second path (1).
Description
Technical field
The present invention relates to dual band antenna, it comprises at least one antenna element, this antenna element comprises many propagation attachment straps flat substantially, that be parallel to each other, and these attachment straps are supplied with microwave power by coupling device by supplying with network, and this coupling device is positioned on the plane layer of being made by electric conducting material.
Background technology
Some similar antennas have only one to propagate attachment strap, and these similar antennas generally are that people are known with the various forms.For example, can see that US Patent specification 5030961 (Tsao), 5241321 (Tsao), 5355143 (Zurcher etc.), European patent specification publication number are No.520908 (Alcatel Espace) and disclosed International Application PCT/SE97/00776 (Allgon).
Recently, the needs of the antenna that mobile wireless is used significantly increase, therefore have now many radio communications, used large-scale frequency band based on the system of ground and satellite.Correspondingly, also need to have the individual antenna element of the propagation element of attachment strap, these attachment straps can be operated in two or more independently in the frequency band.
Summary of the invention
Main purpose of the present invention provides this antenna that has antenna element, and these antenna element can be operated on two separate bands at least, and each frequency band is preferably quite wide.
Another purpose provides a kind of antenna that has antenna element, and antenna element is worked with dual polarization, thereby the ideal that realizes the microwave propagation of carrying from antenna changes, and realizes that perhaps the ideal of the microwave propagation that antenna is accepted changes.This variation is particularly conducive to antenna for base station.The dual polarization carrier wave should be vertical mutually, and have sound insulation preferably between them, preferably surpasses the sound insulation of 30dB.
Realize that above-mentioned main purpose is: the supply network is suitable for supplying with the microwave power at least two separate bands, these two separate bands comprise first relatively low frequency band and the relative second higher frequency band, in the described attachment strap first is suitable for carrying out the propagation of microwave power on described first frequency band, thereby and be provided with aperture and the microwave power on described second frequency band be coupled among second of described attachment strap, this microwave power on described first frequency band supplies on described first attachment strap by the described coupling device on the described ground plane layer from described supply network, and this microwave power on described second frequency band supplies on described second attachment strap by the described coupling device on the described ground plane layer and by the aperture on described first attachment strap from described supply network.
A kind of dual band antenna, comprise at least one antenna element, this antenna element comprises many flat substantially, the propagation attachment strap that is parallel to each other, described attachment strap is supplied with microwave power by coupling device by supplying with network, and this coupling device is positioned on the ground plane layer of being made by electric conducting material, it is characterized in that: described supply network is suitable for supplying with the microwave power at least two separate bands, these two separate bands comprise first relatively low frequency band and the relative second higher frequency band, in the described propagation attachment strap first propagated attachment strap and be suitable for carrying out the propagation of microwave power on described first frequency band, thereby and be provided with aperture and the microwave power on described second frequency band is coupled to second of described propagation attachment strap propagates in the attachment strap, this microwave power on described first frequency band supplies to described first from described supply network by the described coupling device on the described ground plane layer and propagates on the attachment strap, and this microwave power on described second frequency band supplies on the described second propagation attachment strap by the described coupling device on the described ground plane layer and by described first aperture of propagating on the attachment strap from described supply network.
Therefore, first attachment strap has dual work functions, and promptly it will be as propagation element, thereby but also as the aperture of coupling element by it microwave power is coupled on second attachment strap from the aperture of supplying with on network and the ground plane layer.
In order effectively to be coupled, to be preferably between the ground plane layer and first attachment strap and to arrange the 3rd attachment strap, the 3rd attachment strap be used for being coupled microwave power on second frequency band.The 3rd attachment strap size with second attachment strap basically is identical, but littler than first attachment strap.
On each frequency band, realize dual polarization.Advantageously, the coupling device on the ground plane layer comprises aperture, and each aperture is the cross that has two cross-slot, and these two cross-slot are vertical mutually.First and second attachment straps should carry out centering with respect to the central point of the cross aperture of ground plane layer.
These preferred features and further feature are expressed in the additional claim, and show in the following detailed description.
Further explain the present invention with reference to accompanying drawing, these accompanying drawings illustrate of the present invention preferred
Embodiment.
Description of drawings
Fig. 1 is the perspective exploded view of antenna element, and this antenna element has: many flat substantially attachment straps, these attachment straps are arranged on the top of the ground plane layer with cross aperture; Supply with network; Radome with bottom or rear portion; And
Fig. 2 is the view of looking from the bottom of antenna element shown in Figure 1.
Fig. 3 is corresponding with Fig. 1, be the perspective view of second embodiment of antenna element.
Embodiment
Be that schematically illustrated antenna element comprises the attachment strap structure in Fig. 1, this attachment strap structure has three flat substantially attachment strap layers 1,2 and 3, these three attachment strap layers 1,2 and 3 are provided with a top upper type that is positioned at another, and carry out centering above the ground plane layer 4 that is used as reflector.
In the bottom, promptly below matrix 7 or on the rear side of matrix 7, a radome 8 is arranged, it is used for preventing that microwave from propagating backward or to side with the direction on the plane that is parallel to ground plane layer 4 and limited.Radome 8 is made by electric conducting material such as aluminium equally, and preferably be provided with the tongue piece or the point pin 8a that project upwards, these point pins extend through the respective aperture on the matrix 7, and, for example, in the respective aperture of ground plane layer 4, be connected to (not shown) on the ground plane layer 4 by welding.
The same as is known in essence, to supply with network 6 and be provided with forked feed element 6a, 6b, these forked feed elements are vertical mutually and perpendicular to slit 5a, a 5b on the ground plane layer 4, slit 5a, 5b are as the coupling device of microwave power.Also can see Fig. 2.
According to the present invention, supply with network 6 be suitable for two independently frequency band supply with microwave power, these two separate bands comprise: first relatively low frequency band, be with as 880-960MHz GSM; And the second higher relatively frequency band, as the 1710-1880MHzDCS frequency band.
On low-frequency band, feed element 6a, 6b supply to relatively large propagation first to microwave power by slit 5a, 5b (passage that polarizes on the passage that polarizes on vertical direction and the horizontal direction) and propagate attachment strap 2, and this first propagates attachment strap 2 with the mode propagation microwave power that limits (in Fig. 1 upwards).
And, feed element 6a, 6b also supply with microwave power by slit 5a, 5b on the ground plane layer 4 on the second higher relatively frequency band, and by cross aperture 9a, 9b on the attachment strap layer 2 microwave power are supplied in second top, the less relatively propagation attachment strap 1.
In order to realize effectively coupling, cross aperture 9a, 9b have formed vertical slot 9a and 9b, and these vertical slots are parallel to corresponding among slit 5a, the 5b, although their length is shorter.In addition, being arranged on ground plane layer 4 and first propagates attachment strap 3 between the attachment strap 2 and is used for improving the effect that couples on the second higher relatively frequency band.Attachment strap 3 should slightly be propagated attachment strap 1 than second and propagate the big or small identical of attachment strap 1 with second greatly or basically, but should propagate the little of attachment strap 2 than first.
In graphic embodiment, feed element 6a, 6b are arranged on the same plane on the bottom of base layer 7.Therefore, on the cross point 6c of two feed element 6a, 6b, need to have air-bridge.Each feed element is divided into the branch of two 50 Ω, and these two branches end on the open stub.On two frequency bands, by short part 6aa, 6bb symmetrical capacitance tuning in a small amount is set, and shorter part 6aa, 6bb are at the roomy a little about 30mm in front of separately aperture slit 5a, 5b.
Can select the first relatively large size and the position of propagating attachment strap 2 for obtaining preferable performance on lower band, the length of the first propagation attachment strap 2 is corresponding with the length of slit 5a and 5b basically with width.Obviously, attachment strap 1,2,3 needs not to be square or rectangle, and can be some other shapes, as circle or rombic shape.Using under the dual-polarized situation, they should rotate and symmetry or multiloop loop system with respect to 90 °.
And slit 9a, 9b are rotated as 45 ° with an angle with respect to long slit 5a, 5b.
Should be noted that the first relatively large propagation attachment strap 2 plays a part the ground level of the second less relatively propagation attachment strap 1.In experiment verified this.In fact, have been found that the communication mode of attachment strap 1 and 2 is closely similar.Also have, the ratio between the size of the first propagation attachment strap 2 and ground plane layer 4 is propagated the attachment strap 1 and first ratio of propagating between the attachment strap 2 near equaling second.
Find that also the width of adjusting the microbeam of being propagated by the width that changes attachment strap 1,2 separately is possible.
Experiment confirms that also in fact radome or radome 8 reduce to 0 to propagation backward.Here, to be directly connected on the ground plane layer 4 be important cover or radome 8.Scheme realizes by means of contact screw as a comparison.
Experiment has also confirmed: for two passages, realize that the return loss of 15dB is possible at least on than low strap (GSM).In top band (DCS), return loss is bigger than 10dB.And, than 10dB bandwidth big, return loss be about 920Mhz 14.3% and approximately 1795MHz 14.7%.At last, the sound insulation between two passages on each frequency band turns out to be greater than 32dB.
Fig. 3 represents a different slightly embodiment, and the supply network is made up of the cable 6 ' a and the 6 ' b of coaxial line, and each is polarized to one.Ground floor 4 ' on, these cables are connected on rapier 5 ' a and the 5 ' b separately.Therefore, the center conductor of each cable 6 ' a, 6 ' b is connected on separately rapier 5 ' a, the 5 ' b, and rapier itself be connected to coupling attachment strap 3 ' on, and the outer tubular conductor of each coaxial line cable be connected to ground plane layer 4 ' on.If necessary, a pair of coaxial line cable and the rapier of surpassing will be arranged so.Also having, in principle, is possible in conjunction with rapier supply and aperture coupling, and one is polarized one.
In the scope of accessory claim, can improve antenna of the present invention.Antenna can be included in delegation in the rectangular arrangement or two or many antenna elements on many row.And each antenna element can comprise plural propagation attachment strap, and each attachment strap is propagated on special frequency band.Best, generally frequency band is separated each other greatly by the octave between the adjacent frequency band.And as top represented, dual polarization can be go out as shown linear or circular.Certainly, principle of the present invention can also be used under the dual-polarized situation not having.In this case, the aperture on the ground plane layer 4 and first aperture of propagating on the attachment strap 2 need not to be cross, and can be any desired shapes.
Claims (10)
1. a dual band antenna comprises at least one antenna element, and this antenna element comprises many propagation attachment straps flat substantially, that be parallel to each other (1,2), and described attachment strap is by coupling device (5a, 5b; 5 ' a, 5 ' b) supplies with microwave power by supplying with network (6), and this coupling device is positioned at the ground plane layer of being made by electric conducting material (4,4 ') on, it is characterized in that: described supply network is suitable for supplying with the microwave power at least two separate bands, these two separate bands comprise first relatively low frequency band and the relative second higher frequency band
In the described propagation attachment strap first propagated attachment strap (2) and be suitable for carrying out the propagation of microwave power on described first frequency band, and be provided with aperture (9a, thereby 9b) microwave power on described second frequency band being coupled to second of described propagation attachment strap propagates in the attachment strap (1)
This microwave power on described first frequency band supplies to described first from described supply network (6) by the described coupling device on the described ground plane layer and propagates on the attachment strap (2), (9a 9b) supplies to described second and propagates on the attachment strap (1) this microwave power on described second frequency band by the described coupling device on the described ground plane layer (4) and by the aperture on the described first propagation attachment strap (2) from described supply network (6).
2. dual band antenna as claimed in claim 1 is characterized in that: propagate the 3rd attachment strap (3 that is provided with between the attachment strap (2) as coupling device in described ground plane layer (4,4 ') and described first; 3 ').
3. dual band antenna as claimed in claim 2 is characterized in that: described the 3rd attachment strap (3; 3 ') size with the described second propagation attachment strap (1) is identical basically, but it is little to propagate attachment strap (2) than described first.
4. as each described dual band antenna of front claim 1-3, it is characterized in that:
Described supply network (6) is suitable for supplying with the dual-polarized microwave power that has on each described frequency band,
Described coupling device on the described ground plane layer (4 ') comprise at least a pair of rapier (5 ' a, 5 ' b), each polarization of every centering has a rapier.
5. as each described dual band antenna of front claim 1-3, it is characterized in that:
Described supply network (6) is suitable for supplying with the dual-polarized microwave power that has on each described frequency band,
Described coupling device on the described ground plane layer (4) comprises that (5a 5b), reaches aperture
Each described aperture is to have two cross-slot (5a, 5b; 9a, cross 9b), these two cross-slot are vertical mutually, and
Described first and second propagate attachment straps (2,1), and (5a, central point 5b) carries out centering with respect to the described cross aperture of described ground plane layer (4).
6. dual band antenna as claimed in claim 5 is characterized in that: the slit of the cross aperture on the ground plane layer (4) (5a, length 5b) greater than first slit of propagating the cross aperture on the attachment strap (2) (9a, 9b).
7. dual band antenna as claimed in claim 5, it is characterized in that: described supply network is made up of flat microstrip network, this flat microstrip network has two feed element (6a that separate, 6b), these two independently feed element be suitable for supplying with two slits (5a, in 5b) relevant one of the cross aperture on the described ground plane layer (4).
8. as the described dual band antenna of front claim 5, it is characterized in that: box-like radome (8) is arranged on the side of described ground plane layer (4), this side is towards the direction away from the described first propagation attachment strap (2), (5a 5b) carries out centering to described box-like radome (8) with respect to the cross aperture on the described ground plane layer (4).
9. as each the described dual band antenna among the claim 1-3 of front, it is characterized in that: the centre frequency of second frequency band is near the octave higher than the centre frequency of described first frequency band.
10. dual band antenna as claimed in claim 9 is characterized in that: the described centre frequency of described first frequency band is in the 880-960MHz scope, and the described centre frequency of described second frequency band is in the 1710-1880MHz scope.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9704642A SE511064C2 (en) | 1997-12-12 | 1997-12-12 | dual band antenna |
| SE97046429 | 1997-12-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1281590A CN1281590A (en) | 2001-01-24 |
| CN1147966C true CN1147966C (en) | 2004-04-28 |
Family
ID=20409368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB98812131XA Expired - Fee Related CN1147966C (en) | 1997-12-12 | 1998-12-07 | Dual band antenna |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP1038332B1 (en) |
| CN (1) | CN1147966C (en) |
| AU (1) | AU1794099A (en) |
| BR (1) | BR9813505B1 (en) |
| DE (1) | DE69839348T2 (en) |
| ES (1) | ES2301218T3 (en) |
| HK (1) | HK1033210A1 (en) |
| SE (1) | SE511064C2 (en) |
| TW (1) | TW413967B (en) |
| WO (1) | WO1999031757A1 (en) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE515092C2 (en) | 1999-03-15 | 2001-06-11 | Allgon Ab | Double band antenna device |
| WO2001013461A1 (en) | 1999-08-13 | 2001-02-22 | Rangestar Wireless, Inc. | Diversity antenna system for lan communication system |
| CN101188325B (en) | 1999-09-20 | 2013-06-05 | 弗拉克托斯股份有限公司 | Multi-level antenna |
| ES2156832B1 (en) * | 1999-10-07 | 2002-03-01 | Univ Valencia Politecnica | DUAL BAND PRINTED ANTENNA |
| AU1046700A (en) | 1999-10-26 | 2001-05-08 | Fractus, S.A. | Interlaced multiband antenna arrays |
| SE518237C2 (en) * | 2000-11-27 | 2002-09-10 | Allgon Ab | Microwave antenna with patch mounting device |
| FR2828015A1 (en) * | 2001-07-27 | 2003-01-31 | D Phy Espace Dev De Produits H | Antenna feed circuit used in connection with a flat antenna incorporates a dielectric plate with a micro-tape and an earth surface with a radiant slot |
| BG64431B1 (en) * | 2001-12-19 | 2005-01-31 | Skygate International Technology N.V. | Antenna element |
| US7705793B2 (en) | 2004-06-10 | 2010-04-27 | Raysat Antenna Systems | Applications for low profile two way satellite antenna system |
| US7911400B2 (en) | 2004-01-07 | 2011-03-22 | Raysat Antenna Systems, L.L.C. | Applications for low profile two-way satellite antenna system |
| US8761663B2 (en) | 2004-01-07 | 2014-06-24 | Gilat Satellite Networks, Ltd | Antenna system |
| US7626549B2 (en) | 2007-03-28 | 2009-12-01 | Eswarappa Channabasappa | Compact planar antenna for single and multiple polarization configurations |
| WO2008148569A2 (en) | 2007-06-06 | 2008-12-11 | Fractus, S.A. | Dual-polarized radiating element, dual-band dual-polarized antenna assembly and dual-polarized antenna array |
| US8120536B2 (en) | 2008-04-11 | 2012-02-21 | Powerwave Technologies Sweden Ab | Antenna isolation |
| KR100988909B1 (en) * | 2008-09-23 | 2010-10-20 | 한국전자통신연구원 | Microstrip patch antenna with high gain and wide band characteristics |
| DE102008059268A1 (en) | 2008-11-27 | 2009-11-19 | Kathrein-Werke Kg | Positional recognition device for antenna, particularly mobile phone antenna, has integrated inclination sensor and global positioning system, where device is provided in control unit for adjusting electrical beam deflection with antenna |
| KR101111668B1 (en) * | 2010-08-27 | 2012-03-13 | 한국전자통신연구원 | Microstrip patch antenna with high gain and wide band characteristics |
| CN102570019B (en) * | 2012-01-17 | 2014-12-17 | 上海大亚科技有限公司 | Surface-mounted radio-frequency antenna unit supporting double frequency and corresponding radio-frequency antenna system |
| CN102842755B (en) * | 2012-07-11 | 2015-07-22 | 桂林电子科技大学 | Dual-polarized antenna applicable to wireless local area network and manufacturing method of dual-polarized antenna |
| CN105406190B (en) * | 2014-08-06 | 2018-03-30 | 启碁科技股份有限公司 | Flat board dual polarized antenna and combined antenna |
| WO2016131496A1 (en) * | 2015-02-20 | 2016-08-25 | Huawei Technologies Co., Ltd. | Multiport antenna element |
| KR102332120B1 (en) * | 2017-04-25 | 2021-11-30 | 삼성전자주식회사 | Meta-structure antenna and meta-structure array antenna |
| US10931014B2 (en) | 2018-08-29 | 2021-02-23 | Samsung Electronics Co., Ltd. | High gain and large bandwidth antenna incorporating a built-in differential feeding scheme |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4903033A (en) * | 1988-04-01 | 1990-02-20 | Ford Aerospace Corporation | Planar dual polarization antenna |
| US5030961A (en) * | 1990-04-10 | 1991-07-09 | Ford Aerospace Corporation | Microstrip antenna with bent feed board |
| US5124713A (en) * | 1990-09-18 | 1992-06-23 | Mayes Paul E | Planar microwave antenna for producing circular polarization from a patch radiator |
| CA2061254C (en) * | 1991-03-06 | 2001-07-03 | Jean Francois Zurcher | Planar antennas |
| JPH06500909A (en) * | 1991-06-28 | 1994-01-27 | アルカテル・エスパース | linear array antenna |
| US5241321A (en) * | 1992-05-15 | 1993-08-31 | Space Systems/Loral, Inc. | Dual frequency circularly polarized microwave antenna |
| GB9220414D0 (en) * | 1992-09-28 | 1992-11-11 | Pilkington Plc | Patch antenna assembly |
-
1997
- 1997-12-12 SE SE9704642A patent/SE511064C2/en not_active IP Right Cessation
-
1998
- 1998-03-10 TW TW87103453A patent/TW413967B/en not_active IP Right Cessation
- 1998-12-07 AU AU17940/99A patent/AU1794099A/en not_active Abandoned
- 1998-12-07 WO PCT/SE1998/002235 patent/WO1999031757A1/en active Application Filing
- 1998-12-07 CN CNB98812131XA patent/CN1147966C/en not_active Expired - Fee Related
- 1998-12-07 DE DE69839348T patent/DE69839348T2/en not_active Expired - Lifetime
- 1998-12-07 ES ES98962782T patent/ES2301218T3/en not_active Expired - Lifetime
- 1998-12-07 BR BRPI9813505-8A patent/BR9813505B1/en not_active IP Right Cessation
- 1998-12-07 EP EP98962782A patent/EP1038332B1/en not_active Expired - Lifetime
-
2001
- 2001-06-01 HK HK01103784A patent/HK1033210A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| WO1999031757A1 (en) | 1999-06-24 |
| BR9813505A (en) | 2000-10-10 |
| BR9813505B1 (en) | 2012-05-02 |
| DE69839348T2 (en) | 2008-07-17 |
| EP1038332B1 (en) | 2008-04-09 |
| SE9704642D0 (en) | 1997-12-12 |
| HK1033210A1 (en) | 2001-08-17 |
| ES2301218T3 (en) | 2008-06-16 |
| EP1038332A1 (en) | 2000-09-27 |
| SE9704642L (en) | 1999-06-13 |
| CN1281590A (en) | 2001-01-24 |
| DE69839348D1 (en) | 2008-05-21 |
| AU1794099A (en) | 1999-07-05 |
| TW413967B (en) | 2000-12-01 |
| SE511064C2 (en) | 1999-07-26 |
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