CN102110913A - Directional diagram reconfigurable antenna - Google Patents
Directional diagram reconfigurable antenna Download PDFInfo
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- CN102110913A CN102110913A CN2010106141700A CN201010614170A CN102110913A CN 102110913 A CN102110913 A CN 102110913A CN 2010106141700 A CN2010106141700 A CN 2010106141700A CN 201010614170 A CN201010614170 A CN 201010614170A CN 102110913 A CN102110913 A CN 102110913A
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Abstract
The invention discloses a directional diagram reconfigurable antenna, which mainly comprises a rectangular driving patch (1), a first rectangular offset patch (2), a second rectangular offset patch (3), a first switch (4), a second switch (5), a coaxial cable (6), a substrate (7) and a grounding plate (8), wherein the first rectangular offset patch (2) and the second rectangular offset patch (3) are positioned on both sides of the rectangular driving patch (1) respectively; the first switch (4) is connected the rectangular driving patch (1) and the first rectangular offset patch (2); and the second switch (5) is connected the rectangular driving patch (1) and the second rectangular offset patch (3). The directional diagram reconfigurable antenna provided by an embodiment of the invention is simple in structure; and on and off states of the first switch and the second switch are controlled to determine whether the central driving patch of the antenna is connected with the offset patches on left and right sides and further achieve the purpose of directional diagram reconfiguration, thereby reducing the volume of the antenna and reducing the weight of the antenna.
Description
Technical field
The present invention relates to antenna technical field, particularly a kind of directional diagram reconstructable aerial.
Background technology
Along with the increase of radio frequency of utilization and intensity, noise and electromagnetic interference are more and more serious to the influence of radio communication, so antinoise and the anti-interference research focus that becomes wireless transceiver system.In wireless secure communication field, eavesdropping and debug also become the technology that ensures communication safety and must further investigate.Directional diagram reconstructable aerial, can be by the variation of irradiation structure, adjust the direction of electromagnetic radiation in real time, therefore can evade very noisy and strongly disturbing source immediately effectively, avoid of the influence of these unwanted electromagnetic waves to transmitting, in the secure communication field, also can carry out debug by the change at radiation direction angle.Therefore directional diagram reconstructable aerial can play positive role for promoting the wireless communication system overall performance.
In the prior art, the directional diagram reconstruct performance of antenna mainly is to realize by phased array, its antenna structure can be as described in Figure 1, as shown in Figure 1, by the antenna that phased array is realized with directional diagram reconstruct, complex structure, thus increased the volume and weight of antenna integral body, increased the technology difficulty of antenna processing, having limited antenna has application in the occasion of particular determination requirement at some to size, quality.
Summary of the invention
In order to reduce the volume and weight of pattern antenna integral body, the embodiment of the invention provides a kind of directional diagram reconstructable aerial to comprise: square drive paster 1, first rectangle skew paster 2 and second rectangle skew paster 3, first switch 4, second switch 5, coaxial cable 6, substrate 7 and ground plate 8, wherein, described square drive paster 1, described first rectangle skew paster 2, described second rectangle skew paster 3, described first switch 4 and the described second switch 5 coaxial end faces that are positioned at described substrate 7, described first rectangle skew paster 2 and described second rectangle skew paster 3 lay respectively at the both sides of described square drive paster 1, there are first slit in 1 of described first rectangle skew paster 2 and described square drive paster, there are second slit in 1 of described second rectangle skew paster 3 and described square drive paster, described first switch 4 connects described square drive paster 1 and described first rectangle skew paster 2, described second switch 5 connects described square drive paster 1 and described second rectangle skew paster 3, described ground plate 8 is positioned at the bottom surface of described substrate 7, the inner wire probe of described coaxial cable 6 vertically passes described substrate 7 and is connected with described square drive paster 1, and the metal earth of described coaxial cable 6 is connected with described ground plate 8.
Described first rectangle skew paster 2 is identical with the specification of described second rectangle skew paster 3.
Described first slit is identical with the width in described second slit.
Described substrate 7 is a rectangle, and described square drive paster 1 is positioned at the center of described substrate 7 end faces, and coaxial with described substrate 7.
Described first switch 4 and/or second switch 5 are a kind of in micro electromechanical system switch, PIN type diode switch and the fet switch.
The working frequency range of described directional diagram reconstructable aerial can be adjusted by the size that changes each structure.
The inclination angle of described directional diagram reconstructable aerial primary radiation wave beam can be adjusted by the size of change skew paster and the width in gap.
The directional diagram reconstructable aerial that the embodiment of the invention provides is simple in structure, only by controlling the switching state of first switch and second switch, whether the center driven paster of decision antenna links to each other with left and right sides skew paster, can reach the purpose of directional diagram reconstruct, thereby reduced antenna volume, reduce the weight of antenna, improved the result of use of directional diagram reconstructable aerial in the occasion of particular determination requirement.
Description of drawings
Fig. 1 is the antenna assumption diagram that provides in the background technology of the present invention;
Fig. 2 is the vertical view of the directional diagram reconstructable aerial that provides of the embodiment of the invention;
Fig. 3 is the end view of the directional diagram reconstructable aerial that provides of the embodiment of the invention;
Fig. 4 is the directional diagram reconstructable aerial work structuring schematic diagram when 4 conductings of first switch, second switch 5 disconnections that the embodiment of the invention provides;
Fig. 5 be the embodiment of the invention provide when 4 conductings of first switch, directional diagram reconstructable aerial antenna pattern when second switch 5 disconnects;
Fig. 6 be the embodiment of the invention provide when second switch 5 conductings, directional diagram reconstructable aerial work structuring schematic diagram when first switch 4 disconnects;
Fig. 7 be the embodiment of the invention provide when second switch 5 conductings, directional diagram reconstructable aerial antenna pattern when first switch 4 disconnects.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
As shown in Figures 2 and 3, the embodiment of the invention provides a kind of directional diagram reconstructable aerial to comprise: square drive paster 1, first rectangle skew paster 2 and second rectangle skew paster 3, first switch 4, second switch 5, coaxial cable 6, substrate 7 and ground plate 8, wherein, described square drive paster 1, described first rectangle skew paster 2, described second rectangle skew paster 3, described first switch 4 and the described second switch 5 coaxial end faces that are positioned at described substrate 7, described first rectangle skew paster 2 and described second rectangle skew paster 3 lay respectively at the both sides of described square drive paster 1, there are first slit in 1 of described first rectangle skew paster 2 and described square drive paster, there are second slit in 1 of described second rectangle skew paster 3 and described square drive paster, described first switch 4 connects described square drive paster 1 and described first rectangle skew paster 2, described second switch 5 connects described square drive paster 1 and described second rectangle skew paster 3, described ground plate 8 is positioned at the bottom surface of described substrate 7, the inner wire probe of described coaxial cable 6 vertically passes described substrate 7 and is connected with described square drive paster 1, and the metal earth of described coaxial cable 6 is connected with described ground plate 8.
The directional diagram reconstructable aerial that the embodiment of the invention provides is simple in structure, only by controlling the switching state of first switch and second switch, whether the center driven paster of decision antenna links to each other with left and right sides skew paster, can reach the purpose of directional diagram reconstruct, thereby reduced antenna volume, reduce the weight of antenna, improved the result of use of directional diagram reconstructable aerial in the occasion of particular determination requirement.
As shown in Figures 2 and 3, the embodiment of the invention provides a kind of directional diagram reconstructable aerial to comprise: square drive paster 1, first rectangle skew paster 2 and second rectangle skew paster 3, first switch 4, second switch 5, coaxial cable 6, substrate 7 and ground plate 8, wherein, described square drive paster 1, described first rectangle skew paster 2, described second rectangle skew paster 3, described first switch 4 and the described second switch 5 coaxial end faces that are positioned at described substrate 7, described first rectangle skew paster 2 and described second rectangle skew paster 3 lay respectively at the both sides of described square drive paster 1, there are first slit in 1 of described first rectangle skew paster 2 and described square drive paster, there are second slit in 1 of described second rectangle skew paster 3 and described square drive paster, described first switch 4 connects described square drive paster 1 and described first rectangle skew paster 2, described second switch 5 connects described square drive paster 1 and described second rectangle skew paster 3, described ground plate 8 is positioned at the bottom surface of described substrate 7, the inner wire probe of described coaxial cable 6 vertically passes described substrate 7 and is connected with described square drive paster 1, and the metal earth of described coaxial cable 6 is connected with described ground plate 8.
Wherein, when the same day, the lineman did, the switching state of first switch 4 and second switch 5 had determined effective irradiation structure of antenna, thus the main radiation direction of control antenna.
Concrete, when 4 conductings of first switch, when second switch 5 disconnected simultaneously, the square drive paster 1 of antenna central authorities was connected with the rectangle in left side skew paster 2, and was offset paster 3 disconnections with the rectangle on right side.This moment, this reconfigurable antenna carried out radiation by the combining structure of square drive paster 1 and rectangle skew paster 2, and the main radiation direction angle is offset to the X-axis negative direction by vertical direction.
When first switch 4 disconnects, during second switch 5 conductings simultaneously, the square drive paster 1 of these directional diagram reconstructable aerial central authorities is connected with the rectangle on right side skew paster 3, and is offset paster 2 disconnections with the rectangle in left side.This moment, this reconfigurable antenna carried out radiation by the combining structure of square drive paster 1 and rectangle skew paster 3, and the main radiation direction angle is offset to the X-axis positive direction by vertical direction.
Preferably, described first rectangle skew paster 2 is identical with the specification of described second rectangle skew paster 3; Described first slit is identical with the width in described second slit; Described substrate 7 is a rectangle, and described square drive paster 1 is positioned at the center of described substrate 7 end faces, and coaxial with described substrate 7.
Optionally, described first switch 4 and/or second switch 5 are a kind of in micro electromechanical system switch, PIN type diode switch and the fet switch.
Further alternative, the inclination angle of described directional diagram reconstructable aerial primary radiation wave beam can be adjusted by the size of change skew paster and the width in gap.The working frequency range of described directional diagram reconstructable aerial can be adjusted by the size that changes each structure; The size that drives paster is chosen according to the operating frequency point of antenna, and the skew patch size is relevant with directional diagram angle of inclination value.Described gap width and skew patch size need comprehensively be weighed and choose.
For example, when the work of this reconfigurable antenna was 31.2GHz, its substrate dimension was 10mm * 10mm * 0.6mm, the square drive patch size is 3.8mm * 2.8mm, rectangle skew patch size is 2.8mm * 2.36mm, and gap width is 1.2mm, and coaxial cable feed point is apart from paster central point 0.4mm.
When 4 conductings of first switch, when second switch 5 disconnected simultaneously, this reconfigurable antenna irradiation structure schematic diagram as shown in Figure 4.Operating frequency of antenna is 31.2GHz as shown in Figure 5, and main radiation direction is-25 °.
When second switch 5 conductings, when first switch 4 disconnected simultaneously, this reconfigurable antenna irradiation structure schematic diagram as shown in Figure 6.As shown in Figure 7, this reconfigurable antenna operating frequency is 31.2GHz, and main radiation direction is+25 °.This shows that this antenna can be finished the reconstruct of directional diagram, and operating frequency remains unchanged.
The embodiment of the invention is controlled the switching state of first switch and second switch, and whether the center driven paster of decision antenna links to each other with left and right sides skew paster, reaches the purpose of directional diagram reconstruct.The means of reversing by on-mechanical change its crucial radiation characteristic parameter, can be issued to the purpose that realizes the antenna array function with an antenna in the situation of only using single antenna.Disguise, mobility, the flexibility of secure communication have been improved.In addition, the reconfigurable antenna that present embodiment provides, number of switches is less, has reduced energy loss, and when switch and antenna integrated, has reduced complexity and the cost made, thereby has reduced the loss of antenna power, has increased energy emission efficient.And because feeder line is a coaxial cable, take end feedback mode feed, promptly substrate interior is got through the hole, and coaxial cable probe passes through hole and is electrically connected with the center driven paster, and coaxial cable bottom line clad is electrically connected with the antenna floor.The advantage of feedback is not influence radiation pattern and guarantees that the paster feeding centre is constant at the bottom of the employing coaxial cable.The position of distributing point is mated according to paster and Characteristic Impedance of Coaxial Cables value and is chosen.Further, the reconfigurable antenna that the embodiment of the invention provides does not have complicated edge or internal structure, and technology is simple, is easy to processing; Because number of switches has only two,, can guarantee the radiation efficiency of antenna so the insertion loss that causes because of switch is lower; And select the directional diagram angle of inclination that to realize different numerical value by balance to skew patch size and gap width.
All or part of content in the technical scheme that above embodiment provides can realize that its software program is stored in the storage medium that can read by software programming, storage medium for example: the hard disk in the computer, CD or floppy disk.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a directional diagram reconstructable aerial comprises: square drive paster (1), first rectangle skew paster (2) and second rectangle skew paster (3), first switch (4), second switch (5), coaxial cable (6), substrate (7) and ground plate (8), wherein, described square drive paster (1), described first rectangle skew paster (2), described second rectangle skew paster (3), described first switch (4) and the coaxial end face that is positioned at described substrate (7) of described second switch (5), described first rectangle skew paster (2) and described second rectangle skew paster (3) lay respectively at the both sides of described square drive paster (1), there is first slit between described first rectangle skew paster (2) and described square drive paster (1), there is second slit between described second rectangle skew paster (3) and described square drive paster (1), described first switch (4) connects described square drive paster (1) and described first rectangle skew paster (2), described second switch (5) connects described square drive paster (1) and described second rectangle skew paster (3), described ground plate (8) is positioned at the bottom surface of described substrate (7), the inner wire probe of described coaxial cable (6) vertically passes described substrate (7) and is connected with described square drive paster (1), and the metal earth of described coaxial cable (6) is connected with described ground plate (8).
2. directional diagram reconstructable aerial according to claim 1 is characterized in that, described first rectangle skew paster (2) is identical with the specification of described second rectangle skew paster (3).
3. directional diagram reconstructable aerial according to claim 2 is characterized in that, described first slit is identical with the width in described second slit.
4. directional diagram reconstructable aerial according to claim 3 is characterized in that, described substrate (7) is a rectangle, and described square drive paster (1) is positioned at the center of described substrate (7) end face, and coaxial with described substrate (7).
5. directional diagram reconstructable aerial according to claim 1 is characterized in that, described first switch (4) and/or second switch (5) are a kind of in micro electromechanical system switch, PIN type diode switch and the fet switch.
6. directional diagram reconstructable aerial according to claim 1 is characterized in that, the working frequency range of described directional diagram reconstructable aerial can be adjusted by the size that changes each structure.
7. directional diagram reconstructable aerial according to claim 1 is characterized in that, the inclination angle of described directional diagram reconstructable aerial primary radiation wave beam can be adjusted by the size of change skew paster and the width in gap.
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CN2010106141700A CN102110913A (en) | 2010-12-30 | 2010-12-30 | Directional diagram reconfigurable antenna |
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CN2010106141700A CN102110913A (en) | 2010-12-30 | 2010-12-30 | Directional diagram reconfigurable antenna |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102437423A (en) * | 2011-09-09 | 2012-05-02 | 天津大学 | Planar directional pattern reconfigurable method and antenna with six-wave-beam selectivity |
CN103296398A (en) * | 2013-05-07 | 2013-09-11 | 西安电子科技大学 | Microstrip antenna with directional diagram capable of being reconstructed |
CN104993254A (en) * | 2015-07-15 | 2015-10-21 | 华南理工大学 | Broadband directional pattern reconfigurable antenna |
CN106067601A (en) * | 2016-05-20 | 2016-11-02 | 北京邮电大学 | Directional diagram reconstructed microstrip antenna |
CN106207471A (en) * | 2016-08-29 | 2016-12-07 | 苏州市吴通天线有限公司 | A kind of antenna system selected based on user |
CN106785447A (en) * | 2016-10-27 | 2017-05-31 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | A kind of directional diagram reconstructable half width microband leaky-wave antenna |
CN110611164A (en) * | 2019-09-19 | 2019-12-24 | 清华大学 | Frequency reconfigurable antenna based on MEMS switch |
CN110690566A (en) * | 2019-10-21 | 2020-01-14 | 中北大学 | Directional diagram reconfigurable microstrip antenna based on single-pole single-throw switch |
CN113193374A (en) * | 2021-04-27 | 2021-07-30 | 重庆邮电大学 | Frequency reconfigurable antenna loaded with PIN diode and method |
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CN1599134A (en) * | 2003-09-16 | 2005-03-23 | 电子科技大学 | Directional diagram reconstructed microstrip antenna opened with rectangle groove |
CN1925222A (en) * | 2006-09-21 | 2007-03-07 | 电子科技大学 | Directional diagram reconstructable microstrip aerial having Koch form-dividing paster |
CN101834349A (en) * | 2010-05-05 | 2010-09-15 | 电子科技大学 | Microstrip patch antenna with reconfigurable directional diagram |
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CN1925222A (en) * | 2006-09-21 | 2007-03-07 | 电子科技大学 | Directional diagram reconstructable microstrip aerial having Koch form-dividing paster |
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Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102437423B (en) * | 2011-09-09 | 2013-10-16 | 天津大学 | Planar directional pattern reconfigurable method and antenna with six-wave-beam selectivity |
CN102437423A (en) * | 2011-09-09 | 2012-05-02 | 天津大学 | Planar directional pattern reconfigurable method and antenna with six-wave-beam selectivity |
CN103296398A (en) * | 2013-05-07 | 2013-09-11 | 西安电子科技大学 | Microstrip antenna with directional diagram capable of being reconstructed |
CN103296398B (en) * | 2013-05-07 | 2015-04-08 | 西安电子科技大学 | Microstrip antenna with directional diagram capable of being reconstructed |
CN104993254B (en) * | 2015-07-15 | 2018-01-16 | 华南理工大学 | A kind of broadband direction figure reconfigurable antenna |
CN104993254A (en) * | 2015-07-15 | 2015-10-21 | 华南理工大学 | Broadband directional pattern reconfigurable antenna |
CN106067601B (en) * | 2016-05-20 | 2019-03-15 | 北京邮电大学 | Directional diagram reconstructed microstrip antenna |
CN106067601A (en) * | 2016-05-20 | 2016-11-02 | 北京邮电大学 | Directional diagram reconstructed microstrip antenna |
CN106207471A (en) * | 2016-08-29 | 2016-12-07 | 苏州市吴通天线有限公司 | A kind of antenna system selected based on user |
CN106785447A (en) * | 2016-10-27 | 2017-05-31 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | A kind of directional diagram reconstructable half width microband leaky-wave antenna |
CN110611164A (en) * | 2019-09-19 | 2019-12-24 | 清华大学 | Frequency reconfigurable antenna based on MEMS switch |
CN110611164B (en) * | 2019-09-19 | 2021-03-30 | 清华大学 | Frequency reconfigurable antenna based on MEMS switch |
CN110690566A (en) * | 2019-10-21 | 2020-01-14 | 中北大学 | Directional diagram reconfigurable microstrip antenna based on single-pole single-throw switch |
CN113193374A (en) * | 2021-04-27 | 2021-07-30 | 重庆邮电大学 | Frequency reconfigurable antenna loaded with PIN diode and method |
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Application publication date: 20110629 |