CN1306655C - Directional diagram reconstructed microstrip antenna - Google Patents
Directional diagram reconstructed microstrip antenna Download PDFInfo
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- CN1306655C CN1306655C CNB031358276A CN03135827A CN1306655C CN 1306655 C CN1306655 C CN 1306655C CN B031358276 A CNB031358276 A CN B031358276A CN 03135827 A CN03135827 A CN 03135827A CN 1306655 C CN1306655 C CN 1306655C
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- rectangular metal
- rabbet joint
- paster
- fluting
- micro
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Abstract
The present invention provides a directional diagram reconstructed Yagi-like microstrip antenna which comprises a coaxial feeder 14, a metal bottom board 15 and a dielectric substrate 16, wherein the metal bottom board 15 is positioned on the lower surface of the dielectric substrate 16. The present invention is characterized in that the present invention also comprises a metal patch 17 comprising seven rectangle metal patches (18-24) which are applied to the upper surface of the dielectric substrate 16 according to a definite mood, the middle patch 19 is used as an active patch, and each slot gap (25-32) of four patches 21, 22, 23, 24 (patches with slots 21-24) which are provided with slot gaps and symmetrically arranged on the right side and the left side of the active patch 19 is lapped with a micro electromechanical switch (MEMS) (33-80). In this way, the structure of the antenna of the present invention is obtained. The present invention adopts the metal patch 17 to realize the planarization of the antenna, so the purposes of small volume, light weight and easy conformation with carriers (such as airplanes) are realized.
Description
Technical field
The invention belongs to electronic technology field, it is particularly related to the micro-strip paster antenna technology that has micro-electromechanical switch (MEMS).
Background technology
In many relevant sci-tech books of antenna, (thank to prescription such as " Principle of Antenna and design ", Qiu Wenjie writes), all mentioned the Yagi antenna (see figure 1), this antenna is made up of an active dipole and several parasitic elements (comprising director and reflector).By the close coupling between each oscillator, under the acting in conjunction of director and reflector, produce the radiation of a certain specific direction.Shortcoming is: directed radiation in one direction only can not realize the scanning of directional diagram, and its stereochemical structure is difficult to carrier conformal.
Document " MEMS Reconfigurable Vee Antenna " (Microwave SymposiumDigest, 1999 IEEE MTT-S International, Volume:4,13-19 June 1999) describes the reconfigurable antenna (see figure 2) of a kind of structure in, realized the change of radiation pattern.But the change of its structure is to adopt mechanical type, and reaction speed is slow.
Document " On the Gain of a Reconfigurable-Aperture Antenna " (IEEE Transactionson Antenna and Propagation, Vol:49, NO.10, October 2001) in tell about and how to adopt micro-electromechanical switch (MEMS) to realize re-constructing of antenna structure, structure is seen Fig. 3, thereby antenna can be worked on a plurality of Frequency points.But be not implemented in the scanning of a Frequency point antenna radiates directional diagram.
Document " A Novel 1-D Periodic Defected Ground Structure for Planar Circuits " (IEEE MICROWAVE AND GUIDED WAVE LETTERS, VOL.10, NO.4, APRIL2000) mentioned a kind of pbg structure (see figure 4) in, can produce band gap or stopband by shape or the size that changes pbg structure, reach the purpose that changes frequency characteristic.
How to remove to overcome the variety of issue that exists in the prior art, and the advantage of various dissimilar antennas organically combined be still waiting more deep research,
Summary of the invention
Existing antenna structure volume is big in order to overcome, Heavy Weight, be difficult to the deficiency conformal with carrier, be implemented in the scanning of a Frequency point antenna radiates directional diagram simultaneously, the invention provides a kind of class Yagi spark gap microstrip antenna of directional diagram reconstructable, this microstrip antenna have volume little, in light weight, be easy to carrier conformally, be implemented in the characteristics such as scanning of a radiation pattern on the Frequency point simultaneously.
The class Yagi spark gap microstrip antenna of a kind of directional diagram reconstructable provided by the invention comprises: coaxial feeder 14, metal base plate 15, dielectric substrate 16, metal base plate 15 is positioned at the lower surface of dielectric substrate 16, as shown in Figure 5, it is characterized in that: further comprising metal patch 17, metal patch 17 comprises: the active rectangular metal paster 19 that is positioned at the center, center with active rectangular metal paster 19 is the origin of coordinates, No. 1 rectangular metal paster 20 be positioned at active rectangular metal paster 19 directly over, No. 2 rectangular metal pasters 18 be positioned at active rectangular metal paster 19 under, be that the center is about Y-axis and No. 1 rectangular metal paster 20 symmetries with active rectangular metal paster 19; No. 1 fluting rectangular metal paster 21 is that the center is about X-axis and No. 4 fluting rectangular metal paster 24 symmetries with active rectangular metal paster 19; No. 2 fluting rectangular metal paster 22 is that the center is about X-axis and No. 3 fluting rectangular metal paster 23 symmetries, as shown in Figure 6 with active rectangular metal paster 19; Have No. 1 " " font line of rabbet joint 25 and No. 2 " " font lines of rabbet joint 26 on No. 1 fluting rectangular metal paster 21, as shown in Figure 7; Have No. 3 " " font lines of rabbet joint 27 and No. 4 " " font lines of rabbet joint 28 on No. 2 fluting rectangular metal pasters 22; Have No. 5 " " font lines of rabbet joint 29 and No. 6 " " font lines of rabbet joint 30 on No. 3 fluting rectangular metal pasters 23; Have No. 7 " " font lines of rabbet joint 31 and No. 8 " " font lines of rabbet joint 32 on No. 4 fluting rectangular metal pasters 24, the particular location of two " " font lines of rabbet joint can be identical on each rectangular metal paster of slotting, also can be different; In No. 1 fluting rectangular metal paster 21, overlap six micro-electromechanical switchs (33～38) on No. 1 " " font line of rabbet joint 25, overlapped six micro-electromechanical switchs (39～44) on No. 2 " " font lines of rabbet joint 26, as shown in Figure 8; In No. 2 fluting rectangular metal pasters 22, overlap six micro-electromechanical switchs (45～50) on No. 3 " " font lines of rabbet joint 27, overlapped six micro-electromechanical switchs (51～56) on No. 4 " " font lines of rabbet joint 28, as shown in Figure 9; In No. 3 fluting rectangular metal pasters 23, overlap six micro-electromechanical switchs (57～62) on No. 5 " " font lines of rabbet joint 29, overlapped six micro-electromechanical switchs (63～68) on No. 6 " " font lines of rabbet joint 30, as shown in figure 10; In No. 4 fluting rectangular metal pasters 24, overlap six micro-electromechanical switchs (69～74) on No. 7 " " font lines of rabbet joint 31, overlapped six micro-electromechanical switchs (75～80) on No. 8 " " font lines of rabbet joint 32, as shown in figure 11; Metal patch 17 applies the upper surface at dielectric substrate 16; Energy is fed on the antenna, by coaxial feeder 14 as shown in Figure 5.
Need to prove that what adopt above is coaxial feeder 14, feeding classification also can adopt other mode.
Essence of the present invention is to adopt the structure of micro-strip paster antenna, its metal patch 17 comprises seven rectangular metal pasters (18～24), seven rectangular metal pasters (18～24) apply upper surface at dielectric substrate 16 by certain mode: middle paster 19 is as active paster (energy directly is fed on this sheet paster 19 by coaxial feeder 14), the right and left at active paster 19 is arranged four pasters 21 that have the line of rabbet joint symmetrically about X-axis, 22 and 23,24 (all overlapping micro-electromechanical switch (MEMS) (33～80) on each bar line of rabbet joint (25～32) of fluting paster (21～24)) are arranged two pasters 18 and 20 in the both sides, front and back of active paster 19 symmetrically about Y-axis.So just, obtain basic antenna structure of the present invention.Go up the operating state of micro-electromechanical switch (33～80) (connecting or disconnection) by controlling fluting paster (21～24), make microstrip antenna be in different operating states, just can on same frequency, obtain the different radiation pattern of main lobe sensing.
The invention has the beneficial effects as follows, owing to adopt metal patch 17, make antenna planeization, realized that antenna volume is little, in light weight, be easy to and the conformal this purpose of carrier (as aircraft), realized that simultaneously radiation pattern can be an enterprising line scanning of Frequency point.Antenna structure is simple, and it is convenient to realize, has very high practical value.
Description of drawings
Fig. 1 is the schematic diagram of Yagi antenna
In Fig. 1, the 1st, reflector, the 2nd, director, the 3rd, distributing point;
Fig. 2 is the schematic diagram of the described antenna of document " MEMS Reconfigurable Vee Antenna "
In Fig. 2, the 4th, reconfigurable VEE antenna, the 5th, stretching device, the 6th, transmission line, the 7th, dielectric substrate, the 8th, major lobe of directional diagram direction;
Fig. 3 is the schematic diagram of the described antenna of document " On the Gain of a Reconfigurable-Aperture Antenna "
In Fig. 3, the 9th, distributing point, the 10th, mems switch;
Fig. 4 is the schematic diagram of the described pbg structure of document " A Novel 1-D Periodic Defected Ground Structure for Planar Circuits "
In Fig. 4, the 11st, dielectric substrate, the 12nd, the DGS on the metal base plate, the 13rd, metal conduction band;
Fig. 5 is the end view of basic structure of the present invention
In Fig. 5, the 14th, coaxial feeder, the 15th, metal base plate, the 16th, dielectric substrate, the 17th, metal patch;
Fig. 6 is the structural representation of metal patch 17
Fig. 7 is the schematic diagram of " " font line of rabbet joint on the fluting rectangular metal paster
Fig. 8 is the enlarged drawing of No. 1 fluting rectangular metal paster 21
Fig. 9 is the enlarged drawing of No. 2 fluting rectangular metal pasters 22
Figure 10 is the enlarged drawing of No. 3 fluting rectangular metal pasters 23
Figure 11 is the enlarged drawing of No. 4 fluting rectangular metal pasters 24
At Fig. 6, Fig. 7, Fig. 8, Fig. 9, among Figure 10 and Figure 11,18 is No. 2 rectangular metal pasters, the 19th, active rectangular metal paster, 20 is No. 1 rectangular metal pasters, 21 is No. 1 fluting rectangular metal pasters, and 22 is No. 2 fluting rectangular metal pasters, and 23 is No. 3 fluting rectangular metal pasters, 24 is No. 4 fluting rectangular metal pasters, 25 is No. 1 " " font lines of rabbet joint, and 26 is No. 2 " " font lines of rabbet joint, and 27 is No. 3 " " font lines of rabbet joint, 28 is No. 4 " " font lines of rabbet joint, 29 is No. 5 " " font lines of rabbet joint, and 30 is No. 6 " " font lines of rabbet joint, and 31 is No. 7 " " font lines of rabbet joint, 32 is No. 8 " " font lines of rabbet joint, and 33～80 all is micro-electromechanical switch (MEMS);
Figure 12 is the vertical view of the basic structure of first embodiment
Figure 13 is the radiation pattern (in the plane that becomes 90 degree with the x axle) of first embodiment
In Figure 13, the 81st, the antenna pattern of electric field θ component, the 82nd, the antenna pattern of electric field Φ component;
Embodiment
In the embodiment of Figure 12, the size and the material properties of antenna are: it is the Copper Foil of 0.018mm that metal base plate 15 and metal patch 17 adopt thickness; Metal base plate 15 is of a size of 60 * 40mm
2Active rectangular metal paster 19 is of a size of 8 * 8mm
2The size of No. 1 rectangular metal paster 20 and No. 2 rectangular metal pasters 18 is 7 * 7mm
2The size of 21～No. 4 flutings of No. 1 fluting rectangular metal paster rectangular metal paster 24 is 7 * 7mm
2The spacing of all adjacent rectangle metal patches all is 0.8mm; The two ends rectangle of 25～No. 8 " " fonts of No. 1 " " font line of rabbet joint line of rabbet joint 32 is of a size of 1.2 * 0.6mm
2, middle bar shaped is of a size of 0.4 * 5.2mm
2The thickness of dielectric substrate 16 is 1mm, and size is 50 * 30mm
2, relative dielectric constant is 3; Micro-electromechanical switch (MEMS) (33～80) is of a size of 0.4 * 0.4mm
2
In like manner, by changing the operating state of each switch, can also obtain same Frequency point main lobe in same plane and point to different radiation patterns.
Claims (1)
1, a kind of class Yagi spark gap microstrip antenna of directional diagram reconstructable comprises: coaxial feeder (14), metal base plate (15), dielectric substrate (16), metal base plate (15) is positioned at the lower surface of dielectric substrate (16), it is characterized in that: further comprising metal patch (17), metal patch (17) comprising: the active rectangular metal paster (19) that is positioned at the center, center with active rectangular metal paster (19) is the origin of coordinates, No. 1 rectangular metal paster (20) be positioned at active rectangular metal paster (19) directly over, No. 2 rectangular metal pasters (18) be positioned at active rectangular metal paster (19) under, be that the center is about Y-axis and No. 1 rectangular metal paster (20) symmetry with active rectangular metal paster (19); No. 1 fluting rectangular metal paster (21) is that the center is about X-axis and No. 4 fluting rectangular metal paster (24) symmetries with active rectangular metal paster (19); No. 2 fluting rectangular metal pasters (22) are that the center is about X-axis and No. 3 fluting rectangular metal paster (23) symmetries with active rectangular metal paster (19); Have No. 1 on No. 1 fluting rectangular metal paster (21)
The font line of rabbet joint (25) and No. 2
The font line of rabbet joint (26); Have No. 3 on No. 2 fluting rectangular metal pasters (22)
The font line of rabbet joint (27) and No. 4
The font line of rabbet joint (28); Have No. 5 on No. 3 fluting rectangular metal pasters (23)
The font line of rabbet joint (29) and No. 6
The font line of rabbet joint (30); Have No. 7 on No. 4 fluting rectangular metal pasters (24)
The font line of rabbet joint (31) and No. 8
The font line of rabbet joint (32), on each slotted metal paster two
The particular location of the font line of rabbet joint can be identical, also can be different; In No. 1 fluting rectangular metal paster (21), No. 1
Six micro-electromechanical switchs (33～38), No. 2 have been overlapped on the font line of rabbet joint (25)
Six micro-electromechanical switchs (39～44) have been overlapped on the font line of rabbet joint (26); In No. 2 fluting rectangular metal pasters (22), No. 3
Six micro-electromechanical switchs (45～50), No. 4 have been overlapped on the font line of rabbet joint (27)
Six micro-electromechanical switchs (51～56) have been overlapped on the font line of rabbet joint (28); In No. 3 fluting rectangular metal pasters (23), No. 5
Six micro-electromechanical switchs (57～62), No. 6 have been overlapped on the font line of rabbet joint (29)
Six micro-electromechanical switchs (63～68) have been overlapped on the font line of rabbet joint (30); In No. 4 fluting rectangular metal pasters (24), No. 7
Six micro-electromechanical switchs (69～74), No. 8 have been overlapped on the font line of rabbet joint (31)
Six micro-electromechanical switchs (75～80) have been overlapped on the font line of rabbet joint (32); Metal patch (17) applies the upper surface in dielectric substrate (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031358276A CN1306655C (en) | 2003-09-16 | 2003-09-16 | Directional diagram reconstructed microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031358276A CN1306655C (en) | 2003-09-16 | 2003-09-16 | Directional diagram reconstructed microstrip antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1599133A CN1599133A (en) | 2005-03-23 |
| CN1306655C true CN1306655C (en) | 2007-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031358276A Expired - Fee Related CN1306655C (en) | 2003-09-16 | 2003-09-16 | Directional diagram reconstructed microstrip antenna |
Country Status (1)
| Country | Link |
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| CN (1) | CN1306655C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834349B (en) * | 2010-05-05 | 2012-08-29 | 电子科技大学 | Microstrip patch antenna with reconfigurable directional diagram |
| CN102110914B (en) * | 2010-12-29 | 2013-11-06 | 电子科技大学 | Reconfigurable yagi antenna of triangular micro-strip plaster directional diagram |
| CN102522629B (en) * | 2011-12-15 | 2014-01-22 | 电子科技大学 | Phased array antenna with reconstructible directional diagram |
| CN105490018B (en) * | 2014-09-19 | 2019-01-25 | 华为技术有限公司 | A kind of paster antenna |
| CN109301463A (en) * | 2018-09-06 | 2019-02-01 | 山东航天电子技术研究所 | A kind of adjustable conformal antenna of low section direction |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5144320A (en) * | 1992-02-10 | 1992-09-01 | The United States Of America As Represented By The Secretary Of The Army | Switchable scan antenna array |
| JPH04253402A (en) * | 1991-01-30 | 1992-09-09 | Nec Corp | Patch antenna array |
| US6198438B1 (en) * | 1999-10-04 | 2001-03-06 | The United States Of America As Represented By The Secretary Of The Air Force | Reconfigurable microstrip antenna array geometry which utilizes micro-electro-mechanical system (MEMS) switches |
-
2003
- 2003-09-16 CN CNB031358276A patent/CN1306655C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04253402A (en) * | 1991-01-30 | 1992-09-09 | Nec Corp | Patch antenna array |
| US5144320A (en) * | 1992-02-10 | 1992-09-01 | The United States Of America As Represented By The Secretary Of The Army | Switchable scan antenna array |
| US6198438B1 (en) * | 1999-10-04 | 2001-03-06 | The United States Of America As Represented By The Secretary Of The Air Force | Reconfigurable microstrip antenna array geometry which utilizes micro-electro-mechanical system (MEMS) switches |
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| Publication number | Publication date |
|---|---|
| CN1599133A (en) | 2005-03-23 |
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Granted publication date: 20070321 Termination date: 20091016 |