CN103414017B - Based on the double dipole directional antenna of homophase power splitter feed - Google Patents
Based on the double dipole directional antenna of homophase power splitter feed Download PDFInfo
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Abstract
The invention discloses a kind of double dipole directional antenna based on homophase power splitter feed, comprise medium substrate (12), double dipole radiating element, feed element, the first parallel coupling two-wire (5) and the second parallel coupling two-wire (6), described double dipole radiating element is made up of the printed dipole that two are printed on medium substrate (12), described feed element is homophase power splitter, and the output port of homophase power splitter is connected with described double dipole radiating element with the second parallel coupling two-wire (6) by the first parallel coupling two-wire (5).The present invention adopts homophase power splitter to be the double dipole directional antenna feed needing reverse feeding, this homophase power divider structure is simply compact, volume is little, lightweight, be easy to processing and fabricating, be easy to integrated, can reduce the complexity of antenna structure, the double dipole directional antenna based on homophase power splitter feed of the present invention has the advantages such as directed radiation, broadband, gain be moderate.
Description
Technical field
The present invention relates to a kind of printing double-dipole antenna, particularly relate to a kind of double dipole directional antenna based on homophase power splitter feed.
Background technology
In recent years, wireless communication technology obtains very large development and is widely used.Antenna is important component part indispensable in wireless communication system, and its main application is high efficiency radiation in a particular direction and receives electromagnetic wave signal.Because electronic equipment is towards multi-functional, miniaturized future development, increasing communication system requirements low cost, easily make, be easy to the antenna integrated with other microwave radio planar circuits, and require that antenna has certain directional radiation properties, this makes the small size antenna of broadband, high-gain, directed radiation become one of hot subject of research at present.In addition, directional radiation antenna is also one of better solution of the electromagnetic compatibility problem solving modern wireless communication systems.Therefore, the application of broadband beam antenna is more and more extensive.
But, in the application that some is concrete, antenna is also had to the particular/special requirement of the aspects such as such as volume, weight, efficiency and environmental suitability.Such as: for airborne platform, require antenna thin profile, lightweight, efficiency is high and satisfied certain environmental applications condition.
Realize in the technology of antenna wideband directional radiation characteristic existing, the main antenna adopting wideband directional radiation, as the antenna of horn antenna, logarithm periodic antenna, grading structure.Although these antenna all can realize the ability of broadband orientation works, the size of antenna is comparatively large, and it is comparatively complicated to realize wide band structure, and the impact between parameter is comparatively large, design underaction.Generally speaking, broadband beam antenna is demand fulfillment impedance bandwidth not only, also requires that the directional diagram of antenna has the constant wave beam of stable radiation its working band planted agent, and antenna structure size also should be as far as possible small and exquisite.Antenna due to planar structure is easy to design and processing, and therefore, planar printed antenna becomes the preferred forms of Antenna Design.Meanwhile, realize broad-band antenna at same plane, and structure is simply easy to realize, it is the object that design realizes that parameter antenna is easy to regulate.At present, a lot of innovation and creation all concentrate in the problem of the frequency bandwidth how expanding planar printed antenna, but relatively fixing to planar printed antenna bandwidth, and baroque problem can not be improved before this.
Printed dipole antenna is common flat plane antenna form, easily make and easily and other microwave circuit integrated.But the gain of single dipole antenna is limited, for improving radiation gain, the form usually utilizing double dipole to form array realizes directed radiation to improve gain.Double dipole composition array has two kinds of forms usually, and one is two array element homophase feeds, and two is that two anti-phase feeds of array element form W8JK structure.Homophase feed double-dipole antenna needs usual balanced feed structure.Common microstrip feed structures can affect radiation directivity greatly.Patent 201010556591.2 utilizes integrated waveguide to achieve the feed structure of double-dipole antenna.But integrated waveguide needs larger volume to realize Transition Design, adds the size of antenna.The double-dipole antenna of anti-phase feed forms W8JK structure, can realize directed radiation, can effectively improve aerial radiation gain equally, but it needs complicated structure to realize anti-phase feed equally.Therefore, for the printing double dipole design of anti-phase feed is easy to integrated feeding network, the key issue of double dipole array antenna is become.
Summary of the invention
The technical problem to be solved in the present invention is just: the technical problem existed for prior art, the invention provides a kind of simple and compact for structure, volume is little, be easy to the integrated double dipole directional antenna based on homophase power splitter feed, it adopts homophase power splitter as feeding network, for needing the double-dipole antenna feed of anti-phase feed.
For achieving the above object, the double dipole directional antenna based on homophase power splitter feed of the present invention, comprises medium substrate, double dipole radiating element, feed element, the first parallel coupling two-wire and the second parallel coupling two-wire.Above-mentioned double dipole radiating element is made up of the printed dipole that two are printed on medium substrate, above-mentioned feed element is homophase power splitter, and the output port of homophase power splitter is connected with above-mentioned double dipole radiating element with the second parallel coupling two-wire by the first parallel coupling two-wire.
As a further improvement on the present invention, above-mentioned homophase power splitter comprises the first microstrip feed line, the second microstrip feed line, co-planar waveguide first line of rabbet joint, co-planar waveguide second line of rabbet joint, coplanar waveguide feeder line, and above-mentioned co-planar waveguide first line of rabbet joint is coupled with the first microstrip feed line formation first microstrip-slot line transformational structure; Above-mentioned co-planar waveguide second line of rabbet joint is coupled with the second microstrip feed line formation second microstrip-slot line transformational structure; First microstrip-slot line transformational structure, the second microstrip-slot line transformational structure and the homophase power splitter that coplanar waveguide feeder line forms co-planar waveguide feed-in, micro-band exports; First microstrip feed line of above-mentioned homophase power splitter is connected with double dipole radiating element respectively by the first parallel coupling two-wire, the second parallel coupling two-wire with the second microstrip feed line.Wherein, co-planar waveguide first line of rabbet joint, co-planar waveguide second line of rabbet joint are also connected with coplanar waveguide feeder line, and additional pumping signal realizes the signal feed-in of homophase power splitter by one end away from co-planar waveguide first line of rabbet joint and co-planar waveguide second line of rabbet joint of coplanar waveguide feeder line; Above-mentioned first microstrip feed line and the first parallel coupling two-wire, the second microstrip feed line and the second parallel coupling two-wire junction form two output ports of homophase power splitter, pumping signal after the process of homophase power splitter exports from two output ports, double dipole radiating element is connected to through the first parallel coupling two-wire and the second parallel coupling two-wire, realize the feed of double dipole radiating element, electromagnetic wave energy radiate by two printed dipole actings in conjunction of double dipole radiating element, realizes radio communication function.
In this programme, because the double-dipole antenna of anti-phase feed and the W8JK structure of formation itself thereof not only can meet directed radiation requirement, also there is wider bandwidth, close to the front and back ratio of 20dB and gain preferably, meet the requirement of small size antenna broadband, high-gain, directed radiation, and antenna structure is planographic structure, structure is simple, and easy and other planar circuits realize integrated.And the homophase power splitter that have employed said structure in the present invention is the printing double-dipole antenna feed needing anti-phase feed as feeding network, this homophase power divider structure is simply compact, volume is little, lightweight, be easy to processing and fabricating, be easy to integrated, the complexity of antenna structure can be reduced, the good isolation of wider bandwidth sum can be realized on less area simultaneously, not need isolation resistance.Therefore, the double-dipole antenna of this homophase power splitter and anti-phase feed combines, not only achieve the feed of the double-dipole antenna needing anti-phase feed, can also meet structure simple, be easy to integrated, do not increase the advantages such as antenna size, this is in prior art, and no matter homophase feed or the double-dipole antenna of anti-phase feed do not possess.
Further, above-mentioned co-planar waveguide first line of rabbet joint, co-planar waveguide second line of rabbet joint are printed on the reverse side of medium substrate, and above-mentioned first microstrip feed line, the second microstrip feed line are printed on the front of medium substrate.
Above-mentioned co-planar waveguide first line of rabbet joint is perpendicular to the first microstrip feed line; Above-mentioned co-planar waveguide second line of rabbet joint is perpendicular to the second microstrip feed line, i.e. co-planar waveguide first line of rabbet joint and the first microstrip feed line orthogonal coupling formation first microstrip-slot line transformational structure, co-planar waveguide second line of rabbet joint and the second microstrip feed line orthogonal coupling formation second microstrip-slot line transformational structure, so that become microstrip line transmission mode by line of rabbet joint transport mode translations better.
Further, two printed dipoles of above-mentioned double dipole radiating element are parallel to each other and length is different, and wherein long printed dipole comprises two and raises one's arm: long printed dipole first is raised one's arm, long printed dipole second is raised one's arm; Above-mentioned short printed dipole also comprises two and raises one's arm: short printed dipole first is raised one's arm, short printed dipole second is raised one's arm.By one is long and the other is short, two printed dipoles form double dipole radiating element, the corresponding two frequency bins of these two printed dipoles, widening of antenna operating band can be realized by regulating the dimensional parameters of double dipole, the i.e. broadband character of antenna, compared with adopting the radiating element of single printed dipole, this double dipole radiating element has wider impedance bandwidth.
Further, above-mentioned short printed dipole first is raised one's arm and is printed on the reverse side of medium substrate, is connected with the reverse side metal band of the first parallel coupling two-wire; Above-mentioned short printed dipole second is raised one's arm and is printed on the front of medium substrate, is connected with the front metal band of the second parallel coupling two-wire; Above-mentioned long printed dipole first is raised one's arm and is printed on the front of medium substrate, is connected with the front metal band of the first parallel coupling two-wire; Above-mentioned long printed dipole second is raised one's arm and is printed on the reverse side of medium substrate, is connected with the reverse side metal band of the second parallel coupling two-wire.In this programme, the anti-phase feed of double-dipole antenna, the W8JK structure formed, meet directed radiation requirement, also there is wider bandwidth, close to the front and back ratio of 20dB and gain preferably, meet the requirement of small size antenna broadband, high-gain, directed radiation, and antenna is planographic structure, do not need isolation resistance, structure is simple, and easy and other planar circuits realize integrated.
Further, above-mentioned homophase power splitter is arranged on from the side close to long printed dipole.
Further, above-mentioned medium substrate is applicable to frequency microwave frequency range and made by the insulating material with the dielectric constant that adapts.
Further, the characteristic impedance of above-mentioned coplanar waveguide feeder line is 50 Ω.
Operation principle of the present invention is: additional pumping signal is by coplanar waveguide feeder line feed-in homophase power splitter, export from two output ports through homophase power splitter again, and two of homophase power splitter output port homophase feeds, make the anti-phase on the reverse side metal band of the first parallel coupling two-wire and the front metal band of the second parallel coupling two-wire, anti-phase on the front metal band of the first parallel coupling two-wire and the reverse side metal band of the second parallel coupling two-wire, like this, first parallel coupling two-wire of homophase feed and the second parallel coupling two-wire can be just two printed dipole feeds simultaneously, and two printed dipole current feed phases form W8JK structure on the contrary, finally, electromagnetic wave energy radiate by two printed dipole actings in conjunction, realize radio communication function.
Relative to prior art, tool of the present invention has the following advantages and beneficial effect:
1, the present invention adopts homophase power splitter as the feeding network of printing double-dipole antenna, this feed network structures is simply compact, volume is little, lightweight, be easy to processing and fabricating, be easy to integrated, the complexity of antenna structure can be reduced;
2, the double dipole directional antenna arrangement based on homophase power splitter of the present invention simple, be easy to realize, improve successful, the size and sophistication of antenna can not be increased simultaneously, be applicable in the mini-plant such as communication, electronic navigation;
3, the present invention adopts printing double-dipole antenna as radiating element, by one is long and the other is short, two printed dipoles form radiating element, the corresponding two frequency bins of these two printed dipoles, broadband character can be realized by regulating the dimensional parameters of double dipole, compare single printed dipole as radiating element, there is wider impedance bandwidth;
4, the present invention adopts printing double-dipole antenna as radiating element, and in radiating element, one is long and the other is short, and two printed dipoles adopt anti-phase feed to form W8JK structure, can increase front and back ratio, improve directionality.Thus obtain good directional radiation properties;
5, the present invention adopts the printing double-dipole antenna of anti-phase feed, has stable antenna pattern, in E-plane, H-plane two primary flats, all have good directional radiation properties, while guarantee directed radiation, adds the radiation gain in far field.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the connection diagram of double dipole radiating element of the present invention and coupling parallel wire;
Fig. 3 is homophase power divider structure schematic diagram of the present invention;
Fig. 4 (a) is Facad structure schematic diagram of the present invention;
Fig. 4 (b) is fermentation structural representation of the present invention;
Fig. 5 is that simulation result is compared in the standing-wave ratio of double dipole radiating element of the present invention and front and back;
Fig. 6 (a) is the antenna pattern of E plane and H plane under double dipole radiating element 8GHz frequency of the present invention;
Fig. 6 (b) is the antenna pattern of E plane and H plane under double dipole radiating element 10GHz frequency of the present invention;
Fig. 6 (c) is the antenna pattern of E plane and H plane under double dipole radiating element 12GHz frequency of the present invention;
Fig. 7 is gain simulation result of the present invention.
Marginal data: 1, short printed dipole first is raised one's arm; 2, short printed dipole second is raised one's arm; 3, long printed dipole first is raised one's arm; 4, long printed dipole second is raised one's arm; 5, the first parallel coupling two-wire; 6, the second parallel coupling two-wire; 7, the first microstrip feed line; 8, the second microstrip feed line; 9, co-planar waveguide first line of rabbet joint; 10, co-planar waveguide second line of rabbet joint; 11, coplanar waveguide feeder line.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited only to this.
[embodiment 1]
As shown in figures 1 and 3, based on the double dipole directional antenna of homophase power splitter feed, its radiating element is by two molecular double dipole radiating elements of the printed dipole be printed on medium substrate 12; Its feed element is homophase power splitter, and homophase power splitter is connected by two parallel coupling two-wires (the first parallel coupling two-wire 5 and the second parallel coupling two-wire 6) with radiating element.
Above-mentioned feed element comprises the first microstrip feed line 7, second microstrip feed line 8, co-planar waveguide first line of rabbet joint 9, co-planar waveguide second line of rabbet joint 10, coplanar waveguide feeder line 11, wherein: co-planar waveguide first line of rabbet joint 9 is coupled with the first microstrip feed line 7 formation first microstrip-slot line transformational structure; Above-mentioned co-planar waveguide second line of rabbet joint 10 is coupled with the second microstrip feed line 8 formation second microstrip-slot line transformational structure; First microstrip-slot line transformational structure, the first microstrip-slot line transformational structure and the homophase power splitter that coplanar waveguide feeder line 11 forms co-planar waveguide feed-in, micro-band exports; First microstrip feed line 7 of above-mentioned homophase power splitter is connected with double dipole radiating element by the first parallel coupling two-wire 5, and the second microstrip feed line 8 is connected with double dipole radiating element by the second parallel coupling two-wire 6.In addition, co-planar waveguide first line of rabbet joint 9, co-planar waveguide second line of rabbet joint 10 are also connected with coplanar waveguide feeder line 11.Additional pumping signal realizes the signal feed-in of homophase power splitter by one end (the input port place in Fig. 3) away from co-planar waveguide first line of rabbet joint 9 and co-planar waveguide second line of rabbet joint 10 of coplanar waveguide feeder line 11; Above-mentioned first microstrip feed line 7 and the first parallel coupling two-wire 5, second microstrip feed line 8 and the second parallel coupling two-wire 6 junction form two output ports (port A, port B) of homophase power splitter, pumping signal after the process of homophase power splitter exports from two output ports, double dipole radiating element is connected to through the first parallel coupling two-wire 5 and the second parallel coupling two-wire 6, realize the feed of double dipole radiating element, electromagnetic wave energy radiate by two printed dipole actings in conjunction of double dipole radiating element, realizes radio communication function.
In above-mentioned homophase power splitter, co-planar waveguide first line of rabbet joint 9 and co-planar waveguide second line of rabbet joint 10 are printed on the reverse side of medium substrate 12, first microstrip feed line 7, second microstrip feed line 8 is printed on the front of medium substrate 12, and co-planar waveguide first line of rabbet joint 9 is perpendicular to the first microstrip feed line 7; Above-mentioned co-planar waveguide second line of rabbet joint 10 is perpendicular to the second microstrip feed line 8.
[embodiment 2]
As depicted in figs. 1 and 2, on the basis of embodiment 1, two printed dipoles of the double dipole directional antenna based on homophase power splitter feed in the present embodiment are parallel to each other and length is different, and homophase power splitter is arranged on from the side close to long printed dipole.Long printed dipole has two and raises one's arm: long printed dipole first raises one's arm 3, long printed dipole second raises one's arm 4; Short printed dipole also has two and raises one's arm: short printed dipole first raises one's arm 1, short printed dipole second raises one's arm 2, wherein: short printed dipole first is raised one's arm 1 reverse side being printed on medium substrate 12, is connected with the reverse side metal band of the first parallel coupling two-wire 5; Above-mentioned short printed dipole second is raised one's arm 2 fronts being printed on medium substrate 12, is connected with the front metal band of the second parallel coupling two-wire 6; Above-mentioned long printed dipole first is raised one's arm 3 fronts being printed on medium substrate 12, is connected with the front metal band of the first parallel coupling two-wire 5; Above-mentioned long printed dipole second is raised one's arm 4 reverse side being printed on medium substrate 12, is connected with the reverse side metal band of the second parallel coupling two-wire 6.Due to two output port homophase feeds of homophase power splitter, anti-phase then on the reverse side metal band of the first parallel coupling two-wire 5 and the front metal band of the second parallel coupling two-wire 6, anti-phase on the front metal band of the first parallel coupling two-wire 5 and the reverse side metal band of the second parallel coupling two-wire 6, like this, a pair coupling two-wire (first parallel coupling two-wire 5 and the second parallel coupling two-wire 6) of homophase feed can be just two printed dipole feeds needing anti-phase feed simultaneously, and two printed dipole current feed phases form W8JK structure on the contrary.Above-mentioned medium substrate 12 is applicable to frequency microwave frequency range and made by the insulating material with the dielectric constant that adapts, in the present embodiment, the medium substrate 12 adopted is FR-4, dielectric constant is 4.4, thickness is 0.8mm, and this medium substrate is more common, with low cost, economic and practical, also can adopt the substrate of other thickness and dielectric constant in practical application as required.Above-mentioned coplanar waveguide feeder line 11 is arranged on the lower end of medium substrate 12 reverse side, and its characteristic impedance is 50 Ω, adopts the feeder line of 50 Ω to be easier to and other Circuit Matchings.
Fig. 4 (a) and Fig. 4 (b) is respectively Facad structure schematic diagram and the inverse layer structure schematic diagram of the double dipole directional antenna based on homophase power splitter feed of the present invention, in the present embodiment, other parameters based on the double dipole directional antenna of homophase power splitter feed are as shown in the table:
In upper table each parameter in the position of the expression of the double dipole directional antenna of homophase power splitter feed see Fig. 4 (a) and Fig. 4 (b).
In the present embodiment, the above-mentioned parameter based on the double dipole directional antenna of homophase power splitter feed is an embodiment at X-band, and when being applied in its all band or other specific demands for adaptation antenna, above-mentioned parameter can carry out certain adjustment and optimization.
Fig. 5 compares F/B before and after the standing-wave ratio VSWR of double dipole directional antenna of the present invention and radiation, as can be seen from the figure, the present invention can realize wider bandwidth, and bandwidth can cover whole X-band, and can realize good directional radiation properties (front and back ratio is close to 20dB) at X-band.
Fig. 6 (a), Fig. 6 (b), Fig. 6 (c) are the antenna pattern of double dipole directional antenna of the present invention E plane (xy-face) and H plane (yz-face) under 8 GHz, 10 GHz, 12 GHz, 3 frequencies respectively, (coordinate system is with reference to figure 1), can find out, stable far field radiation pattern is of the present invention one large advantage, and the radiation direction of double dipole directional antenna is stabilized in y-axis direction.
Fig. 7 is the gain simulated effect figure of the radiated far field of double dipole directional antenna of the present invention, can find out, double dipole directional antenna can realize in designed X frequency range (8 ~ 12GHz) gain being greater than 4.5dB, meets gain requirements.
Below be only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, should be considered as protection scope of the present invention.
Claims (7)
1. based on the double dipole directional antenna of homophase power splitter feed, comprise medium substrate (12), double dipole radiating element, feed element, the first parallel coupling two-wire (5) and the second parallel coupling two-wire (6), described double dipole radiating element is made up of the printed dipole that two are printed on medium substrate (12), it is characterized in that, described feed element is homophase power splitter, and the output port of homophase power splitter is connected with described double dipole radiating element with the second parallel coupling two-wire (6) by the first parallel coupling two-wire (5);
Two printed dipoles of described double dipole radiating element are parallel to each other and length is different, and wherein long printed dipole comprises two and raises one's arm: long printed dipole first is raised one's arm (3), long printed dipole second is raised one's arm (4); Short printed dipole also comprises two and raises one's arm: short printed dipole first is raised one's arm (1), short printed dipole second is raised one's arm (2);
Described short printed dipole first raise one's arm (1) be printed on the reverse side of medium substrate (12), be connected with the reverse side metal band of the first parallel coupling two-wire (5); Described short printed dipole second raise one's arm (2) be printed on the front of medium substrate (12), be connected with the front metal band of the second parallel coupling two-wire (6); Described long printed dipole first raise one's arm (3) be printed on the front of medium substrate (12), be connected with the front metal band of the first parallel coupling two-wire (5); Described long printed dipole second raise one's arm (4) be printed on the reverse side of medium substrate (12), be connected with the reverse side metal band of the second parallel coupling two-wire (6).
2. the double dipole directional antenna based on homophase power splitter feed according to claim 1, it is characterized in that, described homophase power splitter comprises the first microstrip feed line (7), the second microstrip feed line (8), co-planar waveguide first line of rabbet joint (9), co-planar waveguide second line of rabbet joint (10), coplanar waveguide feeder line (11), and described co-planar waveguide first line of rabbet joint (9) is coupled with the first microstrip feed line (7) formation first microstrip-slot line transformational structure; Described co-planar waveguide second line of rabbet joint (10) is coupled with the second microstrip feed line (8) formation second microstrip-slot line transformational structure; First microstrip-slot line transformational structure, the second microstrip-slot line transformational structure and the homophase power splitter that coplanar waveguide feeder line (11) forms co-planar waveguide feed-in, micro-band exports; First microstrip feed line (7) of described homophase power splitter is connected with double dipole radiating element respectively by the first parallel coupling two-wire (5), the second parallel coupling two-wire (6) with the second microstrip feed line (8).
3. the double dipole directional antenna based on homophase power splitter feed according to claim 2, it is characterized in that, described co-planar waveguide first line of rabbet joint (9), co-planar waveguide second line of rabbet joint (10) are printed on the reverse side of medium substrate (12), and described first microstrip feed line (7), the second microstrip feed line (8) are printed on the front of medium substrate (12).
4. the double dipole directional antenna based on homophase power splitter feed according to claim 2, is characterized in that, described co-planar waveguide first line of rabbet joint (9) is perpendicular to the first microstrip feed line (7); Described co-planar waveguide second line of rabbet joint (10) is perpendicular to the second microstrip feed line (8).
5., according to the arbitrary described double dipole directional antenna based on homophase power splitter feed of Claims 1-4, it is characterized in that, described homophase power splitter is arranged on from the side close to long printed dipole.
6. according to the double dipole directional antenna based on homophase power splitter feed described in claim 5, it is characterized in that, described medium substrate (12) is applicable to frequency microwave frequency range and made by the insulating material with the dielectric constant that adapts.
7. the double dipole directional antenna based on homophase power splitter feed according to claim 6, is characterized in that, the characteristic impedance of described coplanar waveguide feeder line (11) is 50 Ω.
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| CN201310371388.1A CN103414017B (en) | 2013-08-23 | 2013-08-23 | Based on the double dipole directional antenna of homophase power splitter feed |
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| CN201310371388.1A CN103414017B (en) | 2013-08-23 | 2013-08-23 | Based on the double dipole directional antenna of homophase power splitter feed |
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| CN109672015B (en) * | 2014-04-11 | 2021-04-27 | 康普技术有限责任公司 | Method of eliminating resonance in a multiband radiating array |
| CN105024150B (en) * | 2015-05-11 | 2018-02-06 | 云南大学 | A kind of tri-band antenna applied to WLAN and WiMAX |
| WO2019049553A1 (en) * | 2017-09-08 | 2019-03-14 | 株式会社村田製作所 | Dual-band-capable antenna device |
| EP3874561B1 (en) * | 2018-12-07 | 2022-10-26 | Huawei Technologies Co., Ltd. | Dual polarized antenna structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201868568U (en) * | 2010-11-24 | 2011-06-15 | 东南大学 | Substrate integrated waveguide feed double-dipole antenna and array |
| CN102306862A (en) * | 2011-05-19 | 2012-01-04 | 南京邮电大学 | Broadband conversion adapter for coplanar waveguide and double-sided parallel wire |
| CN203103499U (en) * | 2012-12-13 | 2013-07-31 | 中国航空无线电电子研究所 | Ultra wide band printed antenna |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201868568U (en) * | 2010-11-24 | 2011-06-15 | 东南大学 | Substrate integrated waveguide feed double-dipole antenna and array |
| CN102306862A (en) * | 2011-05-19 | 2012-01-04 | 南京邮电大学 | Broadband conversion adapter for coplanar waveguide and double-sided parallel wire |
| CN203103499U (en) * | 2012-12-13 | 2013-07-31 | 中国航空无线电电子研究所 | Ultra wide band printed antenna |
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