CN109768394A - The method of microstrip antenna structure and electromagnetic radiation signal - Google Patents
The method of microstrip antenna structure and electromagnetic radiation signal Download PDFInfo
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- CN109768394A CN109768394A CN201711098759.8A CN201711098759A CN109768394A CN 109768394 A CN109768394 A CN 109768394A CN 201711098759 A CN201711098759 A CN 201711098759A CN 109768394 A CN109768394 A CN 109768394A
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Abstract
The present invention provides the method for microstrip antenna structure and electromagnetic radiation signal.The structure includes signal input unit, signal radiation unit, grounding parts unit, dielectric substance base board unit；The signal input unit, for inputting electromagnetic wave signal；The signal radiation unit, connect the signal input unit, for reception and the radiated electromagnetic wave signal into space, including a microstrip line and mutiple antennas array element, the bay is spacedly distributed along the microstrip line, and the length that the microstrip line passes through the bay is less than the short side of the bay；The grounding parts unit, with being used to form radio frequency；The dielectric substance base board unit has first surface and the second surface opposite with the first surface, and the signal input unit and the signal radiation unit are located at the first surface, and the grounding parts unit is located at the second surface.The present invention reduces electromagnetic signals in the contact length of microstrip line and bay, improves antenna emission effciency and bandwidth.
Description
Technical field
The invention belongs to Radar Antenna System fields, more particularly to the side of microstrip antenna structure and electromagnetic radiation signal
Method.
Background technique
Radar is widely used in various detections, and basic task is detection target, measures distance, the direction, angle of target
The state parameters such as degree, radar include antenna, transmitter, receiver, and transmitter generates enough electromagnetic energies by transmitting-receiving conversion
Switch sends antenna to, these electromagnetic energies are radiated in atmosphere by antenna, concentrates on a very narrow side and is upwardly formed wave beam,
It propagates forward, after electromagnetic wave encounters the target in wave beam, reflection, a part of electromagnetic energy therein will be generated along all directions
It is reflected back the direction of radar, is obtained by radar antenna, the energy that antenna obtains is sent to receiver by transmit-receive switch, amplifies
The echo-signal of radar is formed after processing.
The accuracy of radar surveying and the performance of antenna are directly related, Yao Tigao radar resolution, it is necessary to increase radar system
The emission effciency and bandwidth of the antenna of system.
Fig. 1 is that traditional microstrip antenna can be in PCB (Printed Circuit by the way of serial feed
Board it) is realized on plate.
As shown in Figure 1, the microstrip antenna structure includes microstrip line 101 and sets one or more antennas on the microstrip line
Array element 102.Microstrip line 101 can be etched to obtain with bay 102 by same sheet metal.The shape of bay 102 is
Rectangle.Microstrip line 101 passes through bay 102 from the center line of bay 102, so that electromagnetic signal is in microstrip line
Certain contact length is formed with bay 102 when transmitting on 101.In traditional microstrip antenna, since electromagnetic signal passes through
Certain energy transmitting can be had by crossing each array element, and longer in the contact length of each array element, lead to the micro-strip day of the structure
Line emission effciency is low, narrow bandwidth.
To improve antenna emission effciency, increases antenna transmitted bandwidth, need to improve the feeding classification of conventional microstrip antenna.
Summary of the invention
The object of the present invention is to provide a kind of microstrip antenna structure, by reduce electromagnetic wave signal in microstrip line with array element
Contact length, improve antenna entirety emission effciency and bandwidth.
To achieve the above object, the present invention provides a kind of microstrip antenna structures, including signal input unit, signal radiation
Unit, grounding parts unit, dielectric substance base board unit；
The signal input unit, for inputting electromagnetic wave signal；
The signal radiation unit, connects the signal input unit, and radiated electromagnetic wave is believed for reception and into space
Number, including a microstrip line and mutiple antennas array element, the bay be spacedly distributed along the microstrip line, the microstrip line
It is less than the short side of the bay across the length of the bay；
The grounding parts unit, with being used to form radio frequency；
The dielectric substance base board unit is provided with first surface and the second surface opposite with the first surface, described
Signal input unit and the signal radiation unit are located at the first surface, and the grounding parts unit is located at second table
Face.
Further, the bay shape is rectangle, and one angle is connect with the microstrip line, and the microstrip line passes through
The length of the bay is less than the short side of the bay.
Further, the bay shape is square, and one angle is connect with the microstrip line, and the microstrip line is worn
The length for crossing the bay is less than the side length of the bay.
Further, the quadrant antenna array element connect one jiao of the microstrip line two adjacent sides and the micro-strip
The angle of line is 45 degree.
Further, the bay shape is circle, and the microstrip line passes through the antenna array along circular secant
Member, the length that the microstrip line passes through the bay are less than diameter of a circle.
Further, the bay shape is ellipse, and the microstrip line passes through the day along the secant of ellipse
Linear array member, the length that the microstrip line passes through the bay are less than elliptical short axle.
Further, the dielectric substance base board unit is pcb board.
The present invention also provides a kind of cascade microstrip antenna structures, by multiple microstrip antennas as described in claim 1
Structure cascades to obtain, and cascade system is to share the grounding parts unit and the dielectric substance base board unit, and the signal input is single
Member connects together, signal radiation unit laid out in parallel at equal intervals.
The present invention also provides a kind of methods for carrying out electromagnetic signal radiation using microstrip antenna structure, including following step
It is rapid:
First, radiofrequency signal input is carried out using the signal input unit；
Second, it is received using the waveguiding structure that the microstrip line of the signal radiation unit and the grounding parts unit are formed defeated
The radiofrequency signal entered；
Electromagnetic signal is radiated in space by third using the bay of the signal radiation unit.
Further, in the above-mentioned methods, the bay shape is arranged to rectangle, one angle and the microstrip line
Connection, the length that the microstrip line passes through the bay are less than the short side of the bay.
Further, in the above-mentioned methods, the bay shape be arranged to square, one angle with it is described micro-
Band line connects, and the length that the microstrip line passes through the bay is less than the side length of the bay.
Further, in the above-mentioned methods, the quadrant antenna array element connects two of one jiao of the microstrip line
The angle of adjacent side and the microstrip line is arranged to 45 degree.
Further, in the above-mentioned methods, the bay shape is arranged to round, and the microstrip line is along circular
Secant passes through the bay, and the length that the microstrip line passes through the bay is less than diameter of a circle.
Further, in the above-mentioned methods, the bay shape is arranged to ellipse, and the microstrip line is along oval
The secant of shape passes through the bay, and the length that the microstrip line passes through the bay is less than elliptical short axle.
Compared with prior art, the present invention has the following advantages:
The present invention provides a kind of microstrip antenna structures, reduce contact of the electromagnetic wave signal in microstrip line with bay
Length；
Improve the emission effciency and bandwidth of antenna entirety；
Microstrip antenna structure provided by the invention can be processed by PCB technology and be realized, low in cost.
Detailed description of the invention
Illustrate detailed composition of the invention with reference to the accompanying drawing.In attached drawing:
Fig. 1 is the structural schematic diagram using the existing microstrip antenna of serial feed.
Fig. 2 is the structural schematic diagram of one embodiment of microstrip antenna structure designed by the present invention.
Fig. 3 is the structural schematic diagram that microstrip antenna structure designed by the present invention carries out cascade one embodiment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is a part of the embodiment in the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art can make various changes and replace, and obtained
Every other embodiment shall fall within the protection scope of the present invention.
In general, microstrip line is to paste the day formed on the dielectric substrate for overleaf having conductor earth plate by conductor sheet
Line.It is usually fed using microstrip transmission line or coaxial probe, makes to motivate electromagnetic field of high frequency between conductor patch and earth plate, and
By the gap between patch surrounding and earth plate to external radiation.Metal patch is usually the thin slice of regular shape, and shape has square
Shape, round or ellipse etc.；Be also possible to long narrow bar shaped thin slice oscillator (dipole) or the array junctions that are made of these units
Structure.These three forms are referred to as micro-strip paster antenna, micro-strip oscillator antenna and micro-strip array antenna.
Microstrip line is suitble to make the planar structure transmission line of microwave integrated circuit.It is small in size, again compared with metal waveguide
Amount is light, service band is wide, high reliablity and manufacturing cost are low etc..Microstrip line is suitable for transmitting or receiving the above frequency band of superfrequency
Small and lightweight antenna, can be used as communication or the antenna of radar.Microstrip line is suitble to receive and dispatch millimeter frequency (30-300GHz)
Electromagnetic wave.
As shown in Fig. 2, the present invention provides a kind of microstrip antenna structure, including signal input unit 21, signal radiation unit
22, grounding parts unit (not shown), dielectric substance base board unit 23.
Signal input unit 21 is used to input electromagnetic wave signal, i.e., carries out electricity using microstrip antenna structure provided by the invention
When magnetic signal radiates, the feed-in of electromagnetic signal is carried out using signal input unit 21.
Grounding parts unit is used to forming radio frequency, can be used as common to signal input unit 21 and signal radiation unit 22
Radio frequency.When carrying out electromagnetic signal radiation using microstrip antenna structure provided by the invention, the micro-strip of signal radiation unit 22
Line 221 and grounding parts unit form specific waveguiding structure, receive the electromagnetic wave signal of feed-in.
As shown in Fig. 2, being provided with first surface 231 and the second surface opposite with first surface on dielectric structure base board 23
232.Signal input unit 21 and signal radiation unit 22 are located at the first surface of dielectric structure base board 23, and grounding parts unit, which is located at, to be situated between
The second surface 232 of electric structure base board.Signal input unit 21 and signal radiation unit 22 can etch shape by same metal plate
At.Dielectric structure base board 23 can be pcb board.Those skilled in the art can according to need the base for selecting different insulating materials
Plate, and other conductive materials, to realize identical conductive and insulation function and effect.
See that Fig. 2, signal radiation unit 22 include a microstrip line 221 and mutiple antennas array element 222, mutiple antennas array element
222 are equally spaced along microstrip line 221, one jiao of connection microstrip line 221 of bay 222.
The shape of bay can there are many selections, as long as meeting microstrip line across the length of bay and traditional
Microstrip antenna is compared and is reduced, and then reduces electromagnetic signal in the contact length of microstrip line and bay.For example,
The shape of bay can be rectangle.In traditional microstrip antenna structure, microstrip line passes through the length and rectangle of bay
Short side length it is identical.In microstrip antenna structure provided by the present invention, one jiao of squaerial array element with microstrip line phase
Even, the length for only needing microstrip line to pass through one jiao of bay is less than the length of the short side of rectangle, so that it may reach reduction electromagnetic signal
In the purpose of microstrip line and the contact length of bay.
Microstrip line pass through bay mode can also there are many selections, as long as meeting microstrip line across bay
Length is reduced compared with traditional microstrip antenna, and then it is long in contact of the microstrip line with bay to reduce electromagnetic signal
Degree.For example, the shape of bay is square.In traditional microstrip antenna structure, microstrip line passes through bay
Length is identical as the length of side length of square.In microstrip antenna structure provided by the present invention, microstrip line can pass through day
One jiao of linear array member, when microstrip line passes through bay, the angle with two sides of bay can all be 45 degree, be also possible to
30 degree and 60 degree, as long as the length that microstrip line passes through bay is less than the side length of square, so that it may reach reduction electromagnetic signal
In the purpose of microstrip line and bay contact length.
As shown in Fig. 2, in the present embodiment, the shape of bay 222 is square, one jiao of connection microstrip line 221
Two adjacent sides and the angle of microstrip line 221 be 45 degree.During transmitting electromagnetic wave signal using microstrip line 221, micro-strip
221 guided electromagnetic wave of line can be used for radiated electromagnetic wave signal along 221 axial transmission of microstrip line, bay 222.
In above-mentioned microstrip antenna structure, it connect, subtracts with microstrip line 221 again after each bay 222 is rotated 45 degree
Lack electric signal in the contact length of microstrip line and array element, improves the emission effciency and bandwidth of antenna entirety.
The present invention also provides a kind of methods for carrying out electromagnetic signal radiation using microstrip antenna structure as described above, including
Following steps:
Firstly, carrying out radiofrequency signal input using signal input unit 21；
Then, input is received using the waveguiding structure that the microstrip line 221 of signal radiation unit 22 and grounding parts unit are formed
Radiofrequency signal；
Finally, electromagnetic signal is radiated in space by the bay 222 using signal radiation unit 22.
Further, in the above-mentioned methods, the shape of bay can be set to rectangle, and one angle and microstrip line connect
It connects, the length that microstrip line passes through bay is less than the short side of bay.
Further, in the above-mentioned methods, bay shape can be set to square, and one angle and microstrip line connect
It connects, the length that microstrip line passes through bay is less than the side length of bay.
Further, one jiao of two adjacent sides of quadrant antenna array element connection microstrip line and the angle of microstrip line can be with
It is arranged to 45 degree.
Further, in the above-mentioned methods, the bay shape can be set to circle, and the microstrip line is along circle
The secant of shape passes through the bay, and the length that the microstrip line passes through the bay is less than diameter of a circle.
Further, in the above-mentioned methods, the bay shape can be set to ellipse, the microstrip line edge
The secant of ellipse passes through the bay, and the length that the microstrip line passes through the bay is less than elliptical short axle.
In wireless communication system now, often cascaded simultaneously using the identical antenna of multiple substantial structures to pass
Defeated or reception signal, to improve transmission efficiency.
As shown in figure 3, signal input unit 31 is electrically connected with multiple signal radiation units 32, micro-strip day in Fig. 2 is realized
The cascade of cable architecture.Cascade system is that shared grounding parts unit and dielectric substance base board unit, signal input unit connect together,
Signal radiation unit laid out in parallel at equal intervals.The structure of each signal radiation unit 32 is identical, while use is to improve transmission
Efficiency.
The above content is combine specific better embodiment further detailed description of the invention, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (9)
1. a kind of microstrip antenna structure, which is characterized in that including signal input unit, signal radiation unit, grounding parts unit, be situated between
Electric structure base board unit；
The signal input unit, for inputting electromagnetic wave signal；
The signal radiation unit, connects the signal input unit, for reception and the radiated electromagnetic wave signal into space, packet
A microstrip line and mutiple antennas array element are included, the bay is spacedly distributed along the microstrip line, and the microstrip line passes through
The length of the bay is less than the short side of the bay；
The grounding parts unit, with being used to form radio frequency；
The dielectric substance base board unit is provided with first surface and the second surface opposite with the first surface, the signal
Input unit and the signal radiation unit are located at the first surface, and the grounding parts unit is located at the second surface.
2. microstrip antenna structure as described in claim 1, which is characterized in that the bay shape is rectangle, one angle
It is connect with the microstrip line.
3. microstrip antenna structure as described in claim 1, which is characterized in that the bay shape is square, one
Angle is connect with the microstrip line.
4. microstrip antenna structure as claimed in claim 3, which is characterized in that the quadrant antenna array element connects the micro-strip
Two adjacent sides of one jiao of line and the angle of the microstrip line are 45 degree.
5. microstrip antenna structure as described in claim 1, which is characterized in that the bay shape is circle, described micro-
Band line passes through the bay along circular secant, and the length that the microstrip line passes through the bay is less than the straight of circle
Diameter.
6. microstrip antenna structure as described in claim 1, which is characterized in that the bay shape is ellipse, described
Microstrip line passes through the bay along the secant of ellipse, and the length that the microstrip line passes through the bay is less than ellipse
Short axle.
7. claim 1-6 it is any as described in microstrip antenna structure, which is characterized in that the dielectric substance base board unit is
Pcb board.
8. a kind of cascade microstrip antenna structure, which is characterized in that by multiple microstrip antenna structure grades as described in claim 1
Connection obtains, and cascade system is to share the grounding parts unit and the dielectric substance base board unit, the signal input unit connection
To together, signal radiation unit laid out in parallel at equal intervals.
9. the method for carrying out electromagnetic signal radiation using the microstrip antenna structure as described in one of claim 1-6, feature exist
In, comprising the following steps:
First, radiofrequency signal input is carried out using the signal input unit；
Second, input is received using the waveguiding structure that the microstrip line of the signal radiation unit and the grounding parts unit are formed
Radiofrequency signal；
Electromagnetic signal is radiated in space by third using the bay of the signal radiation unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711098759.8A CN109768394A (en) | 2017-11-09 | 2017-11-09 | The method of microstrip antenna structure and electromagnetic radiation signal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711098759.8A CN109768394A (en) | 2017-11-09 | 2017-11-09 | The method of microstrip antenna structure and electromagnetic radiation signal |
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| CN109768394A true CN109768394A (en) | 2019-05-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111030640A (en) * | 2019-12-27 | 2020-04-17 | 苏州市新诚氏通讯电子股份有限公司 | Surface-mounted miniature superposed circuit attenuation sheet and preparation method thereof |
| TWI773011B (en) * | 2020-12-10 | 2022-08-01 | 大陸商江陰康瑞成型技術科技有限公司 | Anti-jamming structure of millimeter wave antenna |
| TWI773010B (en) * | 2020-12-10 | 2022-08-01 | 大陸商江陰康瑞成型技術科技有限公司 | Radiated energy distribution structure of millimeter-wave antenna |
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| US20100265156A1 (en) * | 2009-04-17 | 2010-10-21 | Toyota Jidosha Kabushiki Kaisha | Array antenna device |
| CN106067605A (en) * | 2016-05-20 | 2016-11-02 | 北京华航无线电测量研究所 | A kind of series feed micro-strip array antenna method for designing |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100265156A1 (en) * | 2009-04-17 | 2010-10-21 | Toyota Jidosha Kabushiki Kaisha | Array antenna device |
| CN106067605A (en) * | 2016-05-20 | 2016-11-02 | 北京华航无线电测量研究所 | A kind of series feed micro-strip array antenna method for designing |
Non-Patent Citations (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111030640A (en) * | 2019-12-27 | 2020-04-17 | 苏州市新诚氏通讯电子股份有限公司 | Surface-mounted miniature superposed circuit attenuation sheet and preparation method thereof |
| TWI773011B (en) * | 2020-12-10 | 2022-08-01 | 大陸商江陰康瑞成型技術科技有限公司 | Anti-jamming structure of millimeter wave antenna |
| TWI773010B (en) * | 2020-12-10 | 2022-08-01 | 大陸商江陰康瑞成型技術科技有限公司 | Radiated energy distribution structure of millimeter-wave antenna |
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Application publication date: 20190517 |