CN105186121B - A kind of magnetic monopole end-on directional arryey - Google Patents
A kind of magnetic monopole end-on directional arryey Download PDFInfo
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- CN105186121B CN105186121B CN201510506556.2A CN201510506556A CN105186121B CN 105186121 B CN105186121 B CN 105186121B CN 201510506556 A CN201510506556 A CN 201510506556A CN 105186121 B CN105186121 B CN 105186121B
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- magnetic monopole
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- 230000005404 monopole Effects 0.000 title claims abstract description 96
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- 239000002184 metal Substances 0.000 claims description 25
- 229910052751 metal Inorganic materials 0.000 claims description 25
- 150000002739 metals Chemical class 0.000 claims 1
- 230000010287 polarization Effects 0.000 abstract description 8
- 230000005855 radiation Effects 0.000 description 8
- 230000005284 excitation Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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Abstract
The present invention provides a kind of magnetic monopole end-on directional arryey good with low section, bandwidth, directive property, including antenna element, microstrip transmission line, microstrip feed line, dielectric-slab and floor；The antenna element, microstrip transmission line, microstrip feed line and floor printing processing are on dielectric-slab；The antenna element includes two pairs of magnetic monopole units for being symmetrically disposed at microstrip feed line both sides, forms two pairs of symmetrical matrix components；Each magnetic monopole unit is connected by microstrip transmission line with microstrip feed line, and the driving source of the antenna array encourages for prevention at radio-frequency port, and the two sides on floor are symmetrically provided with rectangular aperture.Antenna is in laid-flat status, can realize the polarization characteristic vertical with plane where antenna, has low-down application height, it is possible to increase the aesthetics and concealment of antenna, and bandwidth, directive property are good.
Description
Technical field
The present invention relates to a kind of field of antenna, more particularly, to a kind of magnetic monopole end-on directional arryey.
Background technology
Existing end-on-fire antenna array realizes the polarization characteristic parallel with plane where antenna, if to provide vertical pole
Change, antenna needs and floor perpendicular, takes very big antenna height, the serious aesthetics and concealment for influencing antenna.
The content of the invention
The present invention is at least one defect overcome described in the above-mentioned prior art（Deficiency）, there is provided a kind of magnetic monopole end-fire
Antenna array, the present invention are using magnetic monopole unit construction end-on directional arryey, have the good spy of low section, bandwidth, directive property
Property.Most important, antenna can realize the polarization characteristic vertical with plane where antenna.When antenna will provide vertical polarization characteristic
When, antenna is in laid-flat status, has low-down application height, it is possible to increase the aesthetics and concealment of antenna.
In order to solve the above technical problems, technical scheme is as follows：
A kind of magnetic monopole end-on directional arryey, including antenna element, microstrip transmission line, microstrip feed line, dielectric-slab and floor；
The antenna element, microstrip transmission line, microstrip feed line and floor printing processing are on dielectric-slab；The antenna element includes two pairs
The magnetic monopole unit of microstrip feed line both sides is symmetrically disposed at, forms two pairs of symmetrical matrix components；Each magnetic monopole unit passes through micro-
Band transmission line is connected with microstrip feed line, and the driving source of the antenna array encourages for prevention at radio-frequency port, and the two sides on floor are symmetrically provided with
Rectangular aperture.
This magnetic monopole end-on directional arryey is the end-fire effect of the radiation characteristic and antenna array using magnetic monopole unit, is made
Antenna is obtained compared to the directive property that other antennas have had.Above-mentioned prevention at radio-frequency port excitation is a kind of driving source, on condition that HFSS energy
Enough simulation calculations go out accurate result, and this driving source can be electromagnetic field, voltage source, current source or Charge Source, be in the present invention
Encouraged using lump port.
Further, the magnetic monopole unit includes first, second, third and fourth totally four magnetic monopole units, and first and third
Magnetic monopole unit is arranged in parallel in the side of microstrip feed line, and second, four magnetic monopole units are arranged in parallel in microstrip feed line
Opposite side；Secondth, four magnetic monopole units are symmetrical with first and third magnetic monopole unit respectively, form two pairs of symmetrical matrix components；Institute
It is in the same plane to state four magnetic monopole units, i.e., it is coplanar；It is equipped with spacing between first and third magnetic monopole unit, second,
Spacing is equipped between four magnetic monopole units；The microstrip transmission line includes four microstrip transmission lines, four magnetic monopole units
It is connected respectively by four microstrip transmission lines with microstrip feed line.Positioned at microstrip feed line the same side and the magnetic monopole list that is arranged in parallel
Spacing between member is determined by the directed radiation performance requirement of antenna.
Further, the magnetic monopole unit includes two rectangular metal faces and multiple short circuit nails, two rectangle gold
The category face two sides symmetrical above and below for being distributed in dielectric-slab, short circuit nail connect on two sides vertical in two rectangular metal faces short up and down
Road.It is using the gap between two metal patches, forms magnetic current, is producing but polarization identical with electric monopole radiation profiles just
The radiation characteristic of friendship.
Further, the microstrip transmission line is to a side not being short-circuited in the rectangular metal face of magnetic monopole unit
Fed, magnetic current is formed between the remaining side for not both being short-circuited or not being fed.
Further, the horizontal distance of magnetic monopole unit to the microstrip feed line is equal, that is, connects magnetic monopole unit
It is identical with the length of the microstrip transmission line of microstrip feed line.
Further, the length in the rectangular metal face of four magnetic monopole units is identical, and width is different.From excitation farther out
The width of a pair of symmetrical magnetic monopole（Slightly）Less than the width of a pair symmetrical magnetic monopole near from excitation, two pairs of symmetrical magnetic monopoles
Subelement produces two resonant frequencies respectively, and the resonant frequency produced is close, and two resonant frequencies can merge, so as to obtain
Broadband.
Further, the floor is rectangular-shaped, in a side on floor, positioned at microstrip feed line the same side and parallel sets
A rectangular aperture is opened between the two magnetic monopole units put, it is identical symmetrically to have opened a size in another side in floor
Rectangular aperture, they can improve directional diagram.
Further, the floor is connected with being located at the rectangular metal face of dielectric-slab lower surface in magnetic monopole unit.
Further, the microstrip transmission line and microstrip feed line use metal micro-strip line, and floor is the one of circuit board surface
Layer sheet metal.
The width of each magnetic monopole unit, that is, the width for forming the rectangular metal face of magnetic monopole unit are true by resonant frequency
Fixed, the position of microstrip transmission line is determined by impedance matching requirements, and their width has an impact the spacing of two resonant frequencies,
Two resonant frequencies can be close if width reduces.
Compared with prior art, the beneficial effect of technical solution of the present invention is：
The end-fire of enhancing directionality is realized using the planar structure of low section, than the direction that common end-fired array improves array
Property, while enhance bandwidth.Most important, antenna is in laid-flat status, can realize the polarization vertical with plane where antenna
Characteristic, has low-down application height, it is possible to increase the aesthetics and concealment of antenna.At the small numbers of end of design cell
When penetrating array, the present invention is especially suitable.
Brief description of the drawings
Fig. 1 is overall schematic of the present invention.
Fig. 2 is schematic top plan view of the present invention.
Fig. 3 is elevational schematic view of the present invention.
Fig. 4 is magnetic monopole cell schematics in the present invention.
Fig. 5 is antenna return loss schematic diagram.
Fig. 6 is aerial radiation gain pattern.
Embodiment
Attached drawing is only for illustration, it is impossible to is interpreted as limitation of the present invention；It is attached in order to more preferably illustrate the present embodiment
Scheme some components to have omission, zoom in or out, do not represent the size of actual product；
To those skilled in the art, it is to be appreciated that some known features and its explanation, which may be omitted, in attached drawing
's.Technical scheme is described further with reference to the accompanying drawings and examples.
Embodiment
In figure, the first magnetic monopoles of 1- unit, the second magnetic monopoles of 2- unit, the 3rd magnetic monopole units of 3-, 4- the 4th
Magnetic monopole unit, the first microstrip transmission lines of 5-, the second microstrip transmission lines of 6-, the 3rd microstrip transmission lines of 7-, the 4th micro-strips of 8- pass
Defeated line, 9- microstrip feed lines, 10- floors, the first rectangular apertures of 11-, the second rectangular apertures of 12-, 13- dielectric-slabs, 14- driving sources.
As shown in Figure 1, a kind of magnetic monopole end-on directional arryey, including four magnetic monopole units, it is respectively the first magnetic list
For pole subelement to the 4th magnetic monopole unit 1-4, four microstrip transmission lines, are respectively that the first microstrip transmission line to the 4th micro-strip passes
Defeated line 5-8, microstrip feed line 9,10 and first, second rectangular aperture 11,12 of floor and dielectric-slab.Four magnetic monopole units,
Four microstrip transmission lines, microstrip feed line and floor printing processing are on dielectric-slab.First magnetic monopole unit 1 and the 3rd magnetic monopole
3 side by side parallel of subelement is distributed in the left side of microstrip feed line 9, and the second magnetic monopole unit 2 and the 4th magnetic monopole unit 4 are side by side
Parallel distribution is in the right side of microstrip feed line 9, symmetrical with the first magnetic monopole unit 1 and the 3rd magnetic monopole unit 3 respectively, composition
Two pairs of symmetrical matrix components, four magnetic monopole units pass sequentially through the micro-strip of first to fourth microstrip transmission line and middle respectively
Feeder line 9 connects, and the driving source of antenna array encourages for prevention at radio-frequency port, and floor 10 is rectangular-shaped, is symmetrically opened on the both sides on floor 10
There are first, second rectangular aperture 11,12, the i.e. a side on floor 10, positioned at 9 the same side of microstrip feed line and be arranged in parallel two
A rectangular aperture has been opened between magnetic monopole unit, the identical rectangular slits of size have symmetrically been opened in another side in floor
Gap.
In the present embodiment, magnetic monopole unit is by two rectangular metal faces, and multiple short circuit nail compositions, two rectangle gold
The category face two sides symmetrical above and below for being distributed in dielectric-slab, multiple short circuit nails connect on both sides vertical in two rectangular metal faces up and down
Short circuit.
In embodiment, the horizontal distance of four magnetic monopole units to microstrip feed lines is equal, i.e. four microstrip transmission lines
The length of 5-8 is identical.
Fig. 5 is antenna return loss schematic diagram, it is seen that the center of antenna frequency is 2.45GHZ, less than -10dB impedance bandwidths
For 2.38GHZ~2.48GHZ.Magnetic current, production are formed using the gap between two rectangular metal faces in same magnetic monopole unit
Raw resonant frequency, the symmetrical magnetic monopole of these two pair can produce two resonant frequencies, their length all same, but from excitation compared with
The symmetrical magnetic monopole unit 3 of remote a pair, the width in 4 rectangular metal faces are slightly less than a pair of symmetrical magnetic monopole near from excitation
Unit 1, the width in 2 rectangular metal faces, to produce the frequency of 2.46GHZ, a pair symmetrical magnetic monopole unit near from excitation
1st, 2 to produce the frequency of 2.4GHZ, and by adjusting microstrip transmission line size and position, the two frequency ranges can be merged one
Rise, so as to strengthen bandwidth.
In embodiment, rectangular metal face phase of the floor 10 with being located at dielectric-slab lower surface in magnetic monopole unit
Even.On floor 10, rectangular aperture 11 is opened between first and third magnetic monopole unit 1,3 of side by side parallel arrangement, in another side
The identical rectangular aperture 12 of size is symmetrically opened between i.e. second, four magnetic monopole units 2,4, the two rectangular apertures can be with
Improve directional diagram.
Fig. 6 is aerial radiation gain pattern, is acted on using the radiation characteristic of magnetic monopole unit and the end-fire of antenna array,
The gain in ratio of gains horizontal polarization directions in vertical polarization directions is more than 30dB so that antenna can realize good vertical pole
The directive property changed and had.
In the present embodiment, microstrip transmission line 5-8 and microstrip feed line 9 use metal micro-strip line, and floor 10 is circuit board surface
One layer of sheet metal.
In the present embodiment, the frequency of the widths affect resonance point of the first, the 3rd magnetic monopole unit 1,3, the first, the 3rd is micro-
Position with transmission line 5,7 can adjust impedance matching, and their width has an impact the spacing of two resonance points, and width subtracts
Two resonance points can be close if small.
In the present embodiment, positioned at the distance between 9 the same side of microstrip feed line and two magnetic monopole units being arranged in parallel
Determined by the directed radiation performance requirement of antenna.Distance i.e. first, the 3rd magnetic monopole between the magnetic monopole unit of parallel distribution
The distance of subelement 1,3 and the distance of the second, the 4th magnetic monopole unit 2,4 are 11mm, about 0.09 λ, less than four/
One wavelength.Due to already having accounted for the mutual coupling between antenna element during software emulation, in terms of the simulation result of Fig. 5 and Fig. 6,
Coupling between antenna element influences antenna performance little.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (7)
1. a kind of magnetic monopole end-on directional arryey, it is characterised in that including antenna element, microstrip transmission line, microstrip feed line, medium
Plate and floor；The antenna element, microstrip transmission line, microstrip feed line and floor printing processing are on dielectric-slab；The antenna list
Member includes two pairs of magnetic monopole units for being symmetrically disposed at microstrip feed line both sides, forms two pairs of symmetrical matrix components；Each magnetic monopole
Unit is connected by microstrip transmission line with microstrip feed line, and the driving source of antenna array encourages for prevention at radio-frequency port, the two sides pair on floor
It is provided with rectangular aperture with claiming；The magnetic monopole unit includes two rectangular metal faces and multiple short circuit nails, two rectangular metals
The face upper and lower surface symmetrical above and below for being distributed in dielectric-slab, short circuit nail connect on two sides vertical in two rectangular metal faces up and down
Short circuit；The microstrip transmission line feeds a side not being short-circuited in the rectangular metal face of magnetic monopole unit, is left
The side for not both being short-circuited or not being fed between form magnetic current.
2. magnetic monopole end-on directional arryey according to claim 1, it is characterised in that the magnetic monopole unit includes the
First, two, three, four totally four magnetic monopole units, first and third magnetic monopole unit be arranged in parallel in the side of microstrip feed line,
2nd, four magnetic monopole units are arranged in parallel in the opposite side of microstrip feed line；Secondth, four magnetic monopole units are respectively with first and third
Magnetic monopole unit is symmetrical, forms two pairs of symmetrical matrix components；Four magnetic monopole units are in the same plane, i.e., common
Face；Spacing is equipped between first and third magnetic monopole unit, spacing is equipped between second, four magnetic monopole units；The micro-strip passes
Defeated line includes four microstrip transmission lines, and four magnetic monopole units are connected by four microstrip transmission lines with microstrip feed line respectively.
3. magnetic monopole end-on directional arryey according to claim 1, it is characterised in that the magnetic monopole unit to micro-strip
The horizontal distance of feeder line is equal, that is, it is identical with the length of the microstrip transmission line of microstrip feed line to connect magnetic monopole unit.
4. magnetic monopole end-on directional arryey according to claim 1, it is characterised in that each in the magnetic monopole unit
The length in rectangular metal face is identical, and width is different.
5. magnetic monopole end-on directional arryey according to claim 1, it is characterised in that the floor is rectangular-shaped, on ground
A side of plate, a rectangular slits have been opened between microstrip feed line the same side and two magnetic monopole units being arranged in parallel
Gap, an identical rectangular aperture of size has symmetrically been opened in another side in floor.
6. magnetic monopole end-on directional arryey according to claim 5, it is characterised in that the floor and magnetic monopole unit
In be connected positioned at the rectangular metal face of dielectric-slab lower surface.
7. magnetic monopole end-on directional arryey according to claim 1, it is characterised in that the microstrip transmission line and micro-strip feedback
Line uses metal micro-strip line, and the floor is sheet metal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510506556.2A CN105186121B (en) | 2015-08-18 | 2015-08-18 | A kind of magnetic monopole end-on directional arryey |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510506556.2A CN105186121B (en) | 2015-08-18 | 2015-08-18 | A kind of magnetic monopole end-on directional arryey |
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| CN105186121B true CN105186121B (en) | 2018-04-17 |
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| CN108631069B (en) * | 2018-05-07 | 2021-05-14 | 电子科技大学 | Ultra-wideband vertical polarization end-fire phased array capable of integrally burying cavity |
| CN109103580B (en) * | 2018-08-24 | 2020-08-07 | 深圳大学 | Magnetic pole filtering antenna array |
| CN111193107B (en) * | 2020-01-07 | 2022-08-26 | 中山大学 | End-fire folding slot antenna array |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1708875A (en) * | 2002-10-28 | 2005-12-14 | 美商智慧财产权授权股份有限公司 | Directional antenna |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007142570A (en) * | 2005-11-15 | 2007-06-07 | Japan Radio Co Ltd | Patch array antenna |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1708875A (en) * | 2002-10-28 | 2005-12-14 | 美商智慧财产权授权股份有限公司 | Directional antenna |
Non-Patent Citations (1)
| Title |
|---|
| 4-Element Yagi Array of Microstrip Quarter-Wave Patch Antennas;Juhua Liu等;《Wireless Symposium(IWS),2013 IEEE International》;20130418;全文 * |
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