CN100385737C - Micro electric controlled beam scanning array microstrip antenna made of BST ceramic material - Google Patents
Micro electric controlled beam scanning array microstrip antenna made of BST ceramic material Download PDFInfo
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- CN100385737C CN100385737C CNB2006100495508A CN200610049550A CN100385737C CN 100385737 C CN100385737 C CN 100385737C CN B2006100495508 A CNB2006100495508 A CN B2006100495508A CN 200610049550 A CN200610049550 A CN 200610049550A CN 100385737 C CN100385737 C CN 100385737C
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- bst
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- ceramic material
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- 229910010293 ceramic material Inorganic materials 0.000 title claims abstract description 16
- 239000003990 capacitor Substances 0.000 claims abstract description 4
- 239000000758 substrate Substances 0.000 claims description 30
- 230000005855 radiation Effects 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000919 ceramic Substances 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- 230000010363 phase shift Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 230000001808 coupling effect Effects 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
Abstract
The present invention discloses a miniature electric control beam scanning array microstrip antenna which is made of BST ceramics. The surface of a PCB base board is provided with a plurality of microstrip lines, one side surface of extension lines of the microstrip lines is provided with a BST ceramic material base board, the surface of the BST base board is provided with microstrip electrodes, the number of the microstrip electrodes is the same as that of the microstrip lines, one end of each microstrip line and one end of each microstrip electrode are connected by a capacitor, each microstrip electrode is connected with a direct current feed source, and the other end of each microstrip line is connected with an alternate current feed source. Microstrip electrodes are arranged on the BST base board, the variation of dielectric permittivities of media in regions below different microstrip electrodes on the BST base board is controlled through controlling the electrode voltage, the phase shifting variation is generated, and simultaneously, each region externally radiates the coherence of phases to cause the variation of directions of radiation beams. The radiation direction of the antenna is controlled through controlling the electrode voltage; the scanning in 2D half-space is realized; phase shifting units and radiation units of the antenna are combined together, and the size is decreased; a plurality of radiation and phase shifting units are eliminated, and the manufacture cost is lowered.
Description
Technical field
The present invention relates to antenna array or system, specifically relate to a kind of miniature automatically controlled beam scanning array microstrip antenna with the BST ceramic material.
Background technology
Ba
1-xSr
xTiO
3(BST) ceramic material is a kind of very high-k that has, at the very little special iron electroceramics material of microwave frequency band loss.The dielectric constant of BST material can obtain change by the value (being the ratio of Ba and Sr) that changes x, can be from the scope of hundreds of to several thousand; After the value of x was determined, the dielectric constant of BST material can be adjusted under the condition of extra electric field simultaneously, and adjustable rate can arrive 20%.Because so automatically controlled nonlinear characteristic is arranged, the bst thin film material can be used for making electric adjustable microwave device, comprises tunable resonator, tunable filter, and adjustable phase shifter.Bst thin film can be made easily, and by hot-pressing technique, block BST material also can obtain easily.
Phase shift array antenna (PAA) is implemented in radiation on the specific direction by array of controls antenna radiation unit relative phase.Phase shift array antenna (PAA) has its unique advantage, high-gain for example, and secondary lobe is little, and radiation direction can be used widely at numerous areas by the convenient control of computer.But because the radiating element numerous (needing thousands of unit usually) of PAA, each unit all needs a phase shift control unit, and this makes the PAA antenna system quite huge, and the cost of paying for the accurate control of phase shift control system is also quite high.
Summary of the invention
The object of the present invention is to provide a kind of miniature automatically controlled beam scanning array microstrip antenna with the BST ceramic material.
The technical solution adopted for the present invention to solve the technical problems is: the PCB upper surface of base plate is shaped on many microstrip lines that are parallel to each other, PCB substrate side surfaces at an end of many microstrip line extended lines that are parallel to each other, the BST ceramic material substrate that is parallel to each other and is connected with the PCB substrate is housed, be shaped on and identical number of many microstrip lines and the micro-strip electrode that extends along equidirectional at the BST upper surface of base plate, one end of each bar microstrip line and each bar micro-strip electrode each free partiting dc capacitor respectively fuses, each bar micro-strip electrode is connected with the direct current feed respectively, the other end of each bar microstrip line is connected the lower surface ground connection of PCB substrate and BST substrate with the interchange feed respectively.
Described many micro-strip electrodes and many microstrip lines are that five equilibrium is arranged or not five equilibrium arrangement.
Described many micro-strip electrodes and many microstrip lines are respectively 10～50.
The useful effect that the present invention has is: the present invention adopts ground, subregion arrangement electrode on the BST substrate, each zone can be seen as a phase-shifter, by control electrode voltage difference, the dielectric constant of zones of different changes in the control BST piece, cause regional phase shift variations, each zone makes the direction of radiation beam change to the coherence of external radiation phase place simultaneously.By the computer control electrode voltage, radiation direction that can control antenna; In the present invention, realization be the scanning of 2D half space, this microstrip antenna just can be implemented in the scanning in the 3D half space by suitably expansion simultaneously; With respect to traditional PAA antenna, the phase-shifting unit and the radiating element of antenna combined, reduced the bulk of antenna; Simultaneously,, omitted numerous radiation and phase-shifting unit, reduced the antenna cost of manufacture with respect to conventional P AA antenna.
Description of drawings
Accompanying drawing is the structural representation with the miniature automatically controlled beam scanning array microstrip antenna of BST ceramic material.
Among the figure: 1, BST medium substrate, 2, micro-strip electrode, 3, the direct current feed, 4, microstrip line, 5, the PCB substrate, 6, exchange feed.
Embodiment
Accompanying drawing is the structural representation with the miniature automatically controlled beam scanning array microstrip antenna of BST ceramic material.In the accompanying drawing, PCB substrate 5 upper surfaces are shaped on many microstrip lines 4, in a side of microstrip line 4 extended lines BST ceramic material substrate 1 is housed, be shaped on micro-strip electrode 2 with 4 identical numbers of many microstrip lines at BST substrate 1 upper surface, one end of each bar microstrip line 4 and each bar micro-strip electrode 2 respectively separately a partiting dc capacitor C fuse, each bar micro-strip electrode 2 is connected with direct current feed 3 respectively, the other end of each bar microstrip line 4 is connected the lower surface ground connection of PCB substrate 5 and BST substrate 1 with interchange feed 6 respectively.
Described many micro-strip electrodes 2 and many microstrip lines 4 are arranged for five equilibrium or not five equilibrium arrangement.
Described many micro-strip electrodes 2 and many microstrip lines 4 are respectively 10～50.
As shown in the drawing, become medium substrate 1 with the BST material, micro-strip electrode 2 is produced on BST medium substrate 1 and the parallel plane surface of x-y, add control voltage by direct current feed 3, each zone, micro-strip electrode 2 belows on the BST medium substrate is added different electrostatic fields, realize the change of BST medium dielectric constant in each zone, micro-strip electrode 2 belows on the BST medium substrate with this, when by the electromagnetic wave of little band leading after by each zone below the micro-strip electrode 2, radiation field in BST medium substrate 1 micro-strip electrode 2 each terminal area just has the difference of phase place, change additive phase with this by each regional ripple of micro-strip electrode 2 belows, uniformly-spaced change with the space by the outgoing wave phase place of controlling equivalent radiating element, the lobe that reaches far region radiation field forms.
Because the quite high dielectric constant of BST medium substrate 1, the transmission direction of wave travel almost is parallel in transmission direction of wave travel in the zone under BST medium substrate 1 micro-strip electrode 2 and other electrode lower area, therefore, though BST medium substrate 1 is complete one, but, because these characteristics, ripple is almost isolated in the propagation in different extra electric fields zone, the coupling effect is very little mutually, this makes the transmission ripple in each zone propagate equivalence in a plurality of BST micro-strip electrodes 2 is an independently phase-shift network, is attended by the variation of amplitude simultaneously; Because the subregion of 2 pairs of ripples of micro-strip electrode is divided in BST medium substrate 1, in BST medium substrate 1 micro-strip electrode 2 end openings, ripple shines the zone of free space, and effect is as the acting in conjunction result of a plurality of independent radiating elements.And change feedback each direct voltage at micro-strip electrode 2, the electromagnetic wave that then causes micro-strip electrode 2 leadings below micro-strip electrode 2 in each zone the additive phase of propagation change, radiation field far field lobe directions will change.When each electrode voltage of micro-strip electrode 2 changes according to certain rule, just can realize that double plane space carries out beam scanning.
This beam scanning antenna is based on the medium dielectric constant and is subjected to extra electric field to change the characteristic that obtains modulating, and the electromagnetic wave band for any BST pottery energy operate as normal can utilize the miniature automatically controlled beam scanning array microstrip antenna of BST ceramic material.
For material, can be used for making this miniature automatically controlled beam scanning array microstrip antenna with non-linear to voltage dielectric constant similar to the BST ceramic material.
Claims (3)
1. miniature automatically controlled beam scanning array microstrip antenna with the BST ceramic material, it is characterized in that: PCB substrate (5) upper surface is shaped on many microstrip lines that are parallel to each other (4), PCB substrate side surfaces at an end of many microstrip lines that are parallel to each other (4) extended line, the BST ceramic material substrate (1) that is parallel to each other and is connected with the PCB substrate is housed, be shaped on and identical number of many microstrip lines (4) and the micro-strip electrode (2) that extends along equidirectional at BST substrate (1) upper surface, one end of each bar microstrip line (4) and each bar micro-strip electrode (2) each free partiting dc capacitor (C) respectively fuses, each bar micro-strip electrode (2) is connected with direct current feed (3) respectively, the other end of each bar microstrip line (4) is connected the lower surface ground connection of PCB substrate (5) and BST substrate (1) with interchange feed (6) respectively.
2. a kind of miniature automatically controlled beam scanning array microstrip antenna with the BST ceramic material according to claim 1 is characterized in that: described many micro-strip electrodes (2) and many microstrip lines (4) are arranged for five equilibrium or not five equilibrium arrangement.
3. a kind of miniature automatically controlled beam scanning array microstrip antenna with the BST ceramic material according to claim 1, it is characterized in that: described many micro-strip electrodes (2) and many microstrip lines (4) are respectively 10～50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100495508A CN100385737C (en) | 2006-02-20 | 2006-02-20 | Micro electric controlled beam scanning array microstrip antenna made of BST ceramic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100495508A CN100385737C (en) | 2006-02-20 | 2006-02-20 | Micro electric controlled beam scanning array microstrip antenna made of BST ceramic material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1808765A CN1808765A (en) | 2006-07-26 |
| CN100385737C true CN100385737C (en) | 2008-04-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100495508A Expired - Fee Related CN100385737C (en) | 2006-02-20 | 2006-02-20 | Micro electric controlled beam scanning array microstrip antenna made of BST ceramic material |
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| CN (1) | CN100385737C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345337B (en) * | 2007-07-11 | 2012-08-01 | 西北工业大学 | Novel X waveband double-frequency microstrip antenna |
| CN101236246B (en) * | 2007-11-21 | 2012-05-30 | 北京理工大学 | Millimeter wave miniaturized multichannel transmitting-receiving subassembly and its phase compensation process |
| CN105891830B (en) * | 2016-04-11 | 2018-04-20 | 重庆邮电大学 | The high-resolution automobile collision avoidance radar realized using ferroelectric material combination array antenna |
| CN111029687B (en) * | 2019-12-23 | 2021-05-28 | 南京星腾通信技术有限公司 | Three-branch microstrip line adjustable phase shifter based on PIN diode |
| CN112164875B (en) * | 2020-09-27 | 2023-07-04 | 京东方科技集团股份有限公司 | Microstrip antenna and communication equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11239002A (en) * | 1998-02-20 | 1999-08-31 | Sumitomo Electric Ind Ltd | Phase shifter |
| US6067047A (en) * | 1997-11-28 | 2000-05-23 | Motorola, Inc. | Electrically-controllable back-fed antenna and method for using same |
| US6091371A (en) * | 1997-10-03 | 2000-07-18 | Motorola, Inc. | Electronic scanning reflector antenna and method for using same |
| US20020080065A1 (en) * | 2000-12-22 | 2002-06-27 | Kyocera Corporation | Beam scanning antenna |
| CN1638190A (en) * | 2003-12-17 | 2005-07-13 | 微软公司 | Low-cost, steerable, phased array antenna |
-
2006
- 2006-02-20 CN CNB2006100495508A patent/CN100385737C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6091371A (en) * | 1997-10-03 | 2000-07-18 | Motorola, Inc. | Electronic scanning reflector antenna and method for using same |
| US6067047A (en) * | 1997-11-28 | 2000-05-23 | Motorola, Inc. | Electrically-controllable back-fed antenna and method for using same |
| JPH11239002A (en) * | 1998-02-20 | 1999-08-31 | Sumitomo Electric Ind Ltd | Phase shifter |
| US20020080065A1 (en) * | 2000-12-22 | 2002-06-27 | Kyocera Corporation | Beam scanning antenna |
| CN1638190A (en) * | 2003-12-17 | 2005-07-13 | 微软公司 | Low-cost, steerable, phased array antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1808765A (en) | 2006-07-26 |
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Granted publication date: 20080430 Termination date: 20110220 |