CN103682645B - The reconfigurable plane microstrip antenna of a kind of multi-angle main beam pointing - Google Patents
The reconfigurable plane microstrip antenna of a kind of multi-angle main beam pointing Download PDFInfo
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- CN103682645B CN103682645B CN201310641951.2A CN201310641951A CN103682645B CN 103682645 B CN103682645 B CN 103682645B CN 201310641951 A CN201310641951 A CN 201310641951A CN 103682645 B CN103682645 B CN 103682645B
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- drive vibrator
- main beam
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Abstract
The present invention proposes the reconfigurable plane microstrip antenna of a kind of multi-angle main beam pointing, belong to electronic technology field, particularly a kind of antenna with five main beam radiation directions.Comprise the insulated substrate of band feed input port and be located at the grounding plate of substrate bottom surface, the director dipole being located at upper surface of base plate and drive vibrator.Drive vibrator is " ten " font drive vibrator of basic driver oscillator and adjustable drive vibrator square crossing, crosspoint is distributing point, four groups of director dipoles lay respectively in four angles of drive vibrator, parallel and the bonding jumper that centre is provided with switch is formed by two often to organize director dipole, and metal ground plate is " ten " font ground plate corresponding with drive vibrator.In the present invention, each mode of operation is except radiation direction is inconsistent, and all the other technical parameters have the consistency of height, so the present invention's design completes a kind of plane microstrip antenna with five main beam radiation directions and each stable working state.
Description
Technical field
The invention belongs to electronic technology field, particularly a kind of restructural plane microstrip antenna with five main beam radiation directions.
Background technology
Along with the development of information technology, with the present mobile communication of wireless transmission method transmission of information, satellite communication, various army/commerical radar and aircraft etc., the status in national economy and national defence becomes more and more important.Antenna is the important component part of wireless communication system, it can receive and launch radio wave and transmission of information, therefore the operating characteristic of antenna will directly affect the performance of whole wireless communication system, and this makes the important content developing into wireless messages technical development of antenna technology.Current, the requirement of various wireless system to performances such as capacity, function, bandwidth is more and more higher.Obviously, improve power system capacity, increase systemic-function, expanding system bandwidth, can current demand be met, but the information subsystem quantity making to carry on same wireless system platform increases by this, thus the quantity of antenna also must correspondingly be increased.The function of multiple antenna is fused in same antenna bore by reconfigurable antenna, can reduce the holistic cost of system, weight reduction, reduction system RCS, realize good electromagnetic compatibility characteristic, realize the function of multiple antenna with an antenna aperture.
Document " directional diagram reconstructable aerial of the parasitic oscillator structure of a kind of micro-band " (" APatternReconfigurableMicrostripParasiticArray " .IEEETRANSACTIONSONANTENNASANDPROPAGATION, VOL.52, NO.10, OCTOBER2004, pp.2773 – 2776.).Parasitic for Yagi antenna oscillator structure is improved in microstrip structure, is designed to the main beam reconfigurable antenna of micro-band Yagi spark gap structure.As shown in Figure 1, antenna body comprise band feed input port insulated substrate, be parallel to each other and be located at the drive vibrator be connected with inner conductor on substrate and respectively with the parasitic oscillator of two diode switches, be located at the grounding plate of substrate bottom surface, coaxial cable; Inner conductor is connected with drive vibrator bias, during work, electric current flows to shorter one end by longer one end, both sides bonding jumper as parasitic oscillator connects an extension at two ends by switch respectively, and when two ends switch connection, then this parasitic oscillator is director dipole, when two end switch disconnect, this parasitic oscillator is reflection oscillator; Two on off states during work on each parasitic oscillator are consistent, by regulating parasitic oscillator switch connection status, its function is changed between director dipole and reflection oscillator, when the switch connection status of both sides director dipole is different, the director dipole side that main beam radiation direction deflection switch connects, when switch connection status is identical, main beam is perpendicular to antenna substrate upwards radiation.Although this antenna structure is simple, owing to only having a drive vibrator and exciting current flows to fixing, drive vibrator both sides are all only provided with a parasitic oscillator in addition, and when thus working, main beam radiation direction only has three angles.
Summary of the invention
The object of the invention is to design the reconfigurable plane microstrip antenna of a kind of multi-angle main beam pointing, to realize the object with five selectable main beam radiation directions.
The present invention is the Curve guide impeller in background technology micro-band Yagi antenna general principle, the main part of inventive antenna comprises the insulated substrate of band feed input port and is located at the grounding plate of substrate bottom surface, be located at director dipole and the drive vibrator of upper surface of base plate, it is characterized in that described drive vibrator is " ten " word X-shape drive vibrator that basic driver oscillator intersects fixedly with adjustable drive vibrator, both crosspoints are antenna feed point, basic driver oscillator distributing point both sides length is unequal, adjustable drive vibrator then comprises vibrator body and is positioned at the extension at two ends, and vibrator body two ends are fixedly connected with integral switch with extension respectively, adjustable drive vibrator both sides are symmetrical arranged relative to distributing point, wherein the length of either side equals longer one section of basic driver oscillator, it is equal that vibrator body is positioned at all shorter with basic driver oscillator one section of the length of distributing point both sides, described director dipole is four groups of director dipoles that structure is identical, parallel and the bonding jumper that centre is provided with switch is formed by two often to organize director dipole, each group of director dipole lays respectively in four angles that basic driver oscillator and adjustable drive vibrator formed, and its extended line and both sides drive vibrator bonding jumper are 45° angle, described metal ground plate is " ten " word X-shape ground plate corresponding with drive vibrator, the four edges length of ground plate and width is identical, its center is connected with coaxial cable outer conductor, inner conductor is then connected with the distributing point in drive vibrator through insulated substrate.
Wherein, drive vibrator, director dipole, metal ground plate are all arranged at insulated substrate by modes such as traditional printing or etchings, and all switches are pin diode switch or mems switch, and switch is fixedly connected with by the mode of welding.
Antenna of the present invention has different size spans to different frequency range.As in frequency range 3GHz to 10GHz scope, the length of both sides, basic driver oscillator crosspoint is respectively 0.25-0.35 λ and 0.2-0.3 λ (λ is the wavelength at working frequency range center frequency point place); The length of each director dipole is 0.1-0.5 λ, and wherein inside each, the distance of director dipole distance apex drive point is 0.1-0.5 λ, and each outside director dipole is 0.05-0.15 λ apart from the distance of inner side director dipole; The width of drive vibrator and director dipole is all consistent, and its width is according to impedance 80-120 ohm microstrip value.
In the present invention, drive vibrator is made up of basic driver oscillator and adjustable drive vibrator square crossing, namely the connection status changing switch in adjustable drive vibrator changes the length of this drive vibrator, electric current in drive vibrator flows to shorter one end by longer one end, diverter switch connection status, namely achieve to exciting current various flows to selection.Director dipole is arranged in four angles that basic driver oscillator and adjustable drive vibrator formed respectively, a switch is loaded in the middle of each director dipole, and the connection status often organizing director dipole breaker in middle is consistent, change generation or the cut-out of connection status, i.e. the host age preference electric current of switch.During Antenna Operation, two switches always one open-one close in adjustable drive vibrator, exciting current just have two kinds of various flows to, be divided into incentive mode one and incentive mode two, now, director dipole only in the angle that both sides drive vibrator length is different is just to wave beam generation effect, select the flow direction of different exciting currents, namely two groups of different director dipoles are selected to have an impact to wave beam, the various combination of switch on these two groups of director dipoles, have the main beam radiation direction of three kinds of different angles, so inventive antenna has six kinds of radiation modes, wherein there is the main beam radiation angle of two kinds of radiation modes identical, for perpendicular to substrate upwards radiation, main beam radiation direction and the antenna substrate place plane of all the other four kinds of radiation modes have 30 °-50 ° departing from.So the present invention has five selectable main beam pointings; In addition, the present invention has very high symmetry in overall structure, and each mode of operation is except radiation direction is inconsistent, and all the other technical parameters (as S11, radiation gain etc.) all have the consistency of height, so each stable working state of inventive antenna.In sum, the present invention's design achieves the reconfigurable plane microstrip antenna of a kind of multi-angle main beam pointing.
Accompanying drawing explanation
Fig. 1 is the antenna schematic diagram of background technology;
Fig. 2 is the front elevation of inventive antenna;
Fig. 3 is the back view of inventive antenna;
Fig. 4 is in the embodiment of the present invention, and K switch 9 disconnects, sense of current when K10 connects in drive vibrator;
Fig. 5 is in the embodiment of the present invention, and K switch 10 disconnects, sense of current when K9 connects in drive vibrator;
Fig. 6 is in the embodiment of the present invention, the S11 parameter curve under six kinds of radiation modes;
Fig. 7 is in the embodiment of the present invention, the 3D of the first radiation mode and tangent plane directional diagram;
Fig. 8 is in the embodiment of the present invention, the 3D of the second radiation mode and tangent plane directional diagram;
Fig. 9 is in the embodiment of the present invention, the 3D of the third radiation mode and tangent plane directional diagram;
Figure 10 is in the embodiment of the present invention, the 3D of the 4th kind of radiation mode and tangent plane directional diagram;
Figure 11 is in the embodiment of the present invention, the 3D of the 5th kind of radiation mode and tangent plane directional diagram;
Figure 12 is in the embodiment of the present invention, the 3D of the 6th kind of radiation mode and tangent plane directional diagram.
Drawing reference numeral illustrates:
1. insulated substrate; 2-1. drive vibrator; The parasitic oscillator in 2-2 ~ 3.; 3-1 ~ 4. switch; 4. insulated substrate; 5-1. basic driver oscillator; Drive vibrator that 5-2. is adjustable; 6-1 ~ 4. director dipole; 7-1; K switch 1, K2; 7-2. K switch 3, K4; 7-3. K switch 5, K6; 7-4. K switch 7, K8; 7-5. K switch 9; 7-6. K switch 10; 8. metal ground plate; 9 coaxial cable feed input ports.
Embodiment
The present invention with the antenna being operated in 5.9GHz for embodiment is illustrated.
As shown in Figure 2, substrate is thickness is 1mm, relative dielectric constant ε
rthe RO6010 sheet material of=2.2, drive vibrator, director dipole, metal ground plate etch or are printed in substrate front side.In drive vibrator, the length of adjustable drive vibrator main body is 15mm, and extension length is 1.7mm, and the length of basic driver oscillator distributing point both sides is respectively 9.7mm and 7.5mm.Often organize in director dipole, the distance of inner side director dipole distance distributing point is 6.5mm, and length is 7mm, and the distance of outside director dipole distance distributing point is 10mm, and length is 10.5mm.The width of drive vibrator and director dipole is 1mm.As shown in Figure 3, grounding plate is arranged at substrate back, corresponding with drive vibrator, in metal ground plate, the length of four bonding jumpers is 11.2mm, width is 4mm, its center weld 50 ohm coaxial cable outer conductor, and inner conductor is then connected with the distributing point in drive vibrator through insulated substrate.
Switch in drive vibrator is for regulating the flow direction of exciting current, and K switch 9, K10 be a connection disconnection when Antenna Operation.When K switch 9 disconnect, K10 connect time, as shown in Figure 4, this pattern is incentive mode one to current direction; When K9 connection, K10 disconnect, as shown in Figure 5, this pattern is incentive mode two to current direction.
At incentive mode for the moment, the director dipole being only parallel to Y-axis just can produce radiation beam guides effect into, and therefore by-pass cock K1, K2 and K5, K6 connection status can realize three kinds of radiation modes in ZOX plane; In like manner, when incentive mode two, the director dipole being only parallel to X-axis just can produce radiation beam guides effect into, and therefore the connection status of by-pass cock K3, K4 and K7, K8 can realize three kinds of radiation modes in ZOY plane.The connection status wherein often organizing two switches in director dipole is consistent.
Accompanying drawing 7 to accompanying drawing 12 does not give 3D under antenna six radiation modes and tangent plane directional diagram, now switch connection status and corresponding simulation parameter are arranged to following table, be provided with comparison, in its each pattern, the connection status of not specified switch does not have an impact substantially to this mode of operation.
Here it should be noted that, antenna of the present invention has six kinds of radiation modes, five main beam radiation directions, wherein radiation mode one is vertical antenna Basic Law to radiation with the main beam pointing of radiation mode four, the antenna pattern 3dB broad beam face being distinguished as pattern one is ZOX face, and the antenna pattern 3dB broad beam face of pattern four is ZOY face.
Accompanying drawing 6 is S11 parametric plot under six kinds of mode of operations, can find out S11 parameter under each radiation mode basically identical and on this frequency of 5.9GHz S11 parameter all lower than-25dB, which ensure that the impedance matching of port, make the efficient feed antenna of input signal.
To sum up, the present invention's design completes a kind of reconfigurable antenna simply efficiently with multi-angle main beam pointing.
Claims (3)
1. the reconfigurable plane microstrip antenna of multi-angle main beam pointing, comprise the insulated substrate of band feed input port and be located at the grounding plate of substrate bottom surface, be located at director dipole and the drive vibrator of upper surface of base plate, it is characterized in that: described drive vibrator is " ten " word X-shape drive vibrator that basic driver oscillator intersects fixedly with adjustable drive vibrator, both crosspoints are antenna feed point, basic driver oscillator distributing point both sides length is unequal, adjustable drive vibrator then comprises vibrator body and is positioned at the extension at two ends, and vibrator body two ends are fixedly connected with integral switch with extension respectively, adjustable drive vibrator both sides are symmetrical arranged relative to distributing point, wherein the length of either side equals longer one section of basic driver oscillator, it is equal that vibrator body is positioned at all shorter with basic driver oscillator one section of the length of distributing point both sides, described director dipole is four groups of director dipoles that structure is identical, parallel and the bonding jumper that centre is provided with switch is formed by two often to organize director dipole, on off state in one group of director dipole is always consistent, each group of director dipole lays respectively in four angles that basic driver oscillator and adjustable drive vibrator formed, and its extended line and both sides drive vibrator bonding jumper are 45° angle, described metal ground plate is " ten " word X-shape ground plate corresponding with drive vibrator, the four edges length of ground plate and width is identical, its center is connected with coaxial cable outer conductor, inner conductor is then connected with the distributing point in drive vibrator through insulated substrate, during work, switch always one open-one close in described adjustable drive vibrator, exciting current just have two kinds of various flows to, be divided into drive pattern one and incentive mode two, two groups of director dipoles now only in the angle that both sides drive vibrator length is different are just to wave beam generation effect, the various combination of switch on these two groups of director dipoles, have the main beam radiation direction of three kinds of different angles, namely six kinds of radiation modes are had, wherein there is the main beam radiation angle of two kinds of radiation modes identical, for perpendicular to substrate upwards radiation, main beam radiation direction and the antenna substrate place plane of all the other four kinds of radiation modes have 30 °-50 ° departing from, so have five selectable main beam pointings.
2. the reconfigurable plane microstrip antenna of a kind of multi-angle main beam pointing as claimed in claim 1, is characterized in that described switch is pin diode switch or mems switch.
3. the reconfigurable plane microstrip antenna of a kind of multi-angle main beam pointing as claimed in claim 1, it is characterized in that in frequency range 3GHz to 10GHz scope, the length of both sides, described basic driver oscillator crosspoint is respectively the wavelength that 0.25-0.35 λ and 0.2-0.3 λ, λ are working frequency range center frequency point place; The length of each director dipole is 0.1-0.5 λ, and wherein inside each, the distance of director dipole distance apex drive point is 0.1-0.5 λ, and each outside director dipole is 0.05-0.15 λ apart from the distance of inner side director dipole; The width of drive vibrator and director dipole is all consistent, and its width is according to impedance 80-120 ohm microstrip value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310641951.2A CN103682645B (en) | 2013-12-03 | 2013-12-03 | The reconfigurable plane microstrip antenna of a kind of multi-angle main beam pointing |
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| CN201310641951.2A CN103682645B (en) | 2013-12-03 | 2013-12-03 | The reconfigurable plane microstrip antenna of a kind of multi-angle main beam pointing |
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| CN103682645B true CN103682645B (en) | 2016-03-30 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105071033A (en) * | 2015-08-25 | 2015-11-18 | 华南理工大学 | Monopole-loop-based pattern-reconfigurable antenna |
| TWI677160B (en) * | 2018-01-18 | 2019-11-11 | 義守大學 | Wireless power transmission system |
| CN108390153B (en) * | 2018-02-08 | 2019-12-31 | 南通大学 | Broadband reconfigurable dielectric resonator antenna |
| CN108767457B (en) * | 2018-05-16 | 2019-12-27 | 中山大学 | Microstrip magnetic dipole antenna |
| CN113224507B (en) | 2020-02-04 | 2023-04-18 | 华为技术有限公司 | Multi-beam antenna |
| CN114512798B (en) * | 2020-11-16 | 2023-04-11 | 华为技术有限公司 | Reconfigurable antenna and communication device |
| CN112531335B (en) * | 2020-11-16 | 2021-09-28 | 珠海格力电器股份有限公司 | Square three-frequency antenna device and communication equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20030176179A1 (en) * | 2002-03-18 | 2003-09-18 | Ken Hersey | Wireless local area network and antenna used therein |
| CN201838722U (en) * | 2010-05-05 | 2011-05-18 | 电子科技大学 | Microstrip patch antenna with reconfigurable directional diagram |
| CN101834349B (en) * | 2010-05-05 | 2012-08-29 | 电子科技大学 | Microstrip patch antenna with reconfigurable directional diagram |
| CN102437423B (en) * | 2011-09-09 | 2013-10-16 | 天津大学 | Planar directional pattern reconfigurable method and antenna with six-wave-beam selectivity |
| US8797221B2 (en) * | 2011-12-07 | 2014-08-05 | Utah State University | Reconfigurable antennas utilizing liquid metal elements |
| CN102820538A (en) * | 2012-08-31 | 2012-12-12 | 电子科技大学 | Miniaturized and circularly-polarized RFID (Radio Frequency Identification) reader-writer antenna |
| 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 |
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Granted publication date: 20160330 Termination date: 20191203 |