CN104836025B - A kind of small-sized polarization reconfigurable antenna - Google Patents
A kind of small-sized polarization reconfigurable antenna Download PDFInfo
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- CN104836025B CN104836025B CN201510253270.8A CN201510253270A CN104836025B CN 104836025 B CN104836025 B CN 104836025B CN 201510253270 A CN201510253270 A CN 201510253270A CN 104836025 B CN104836025 B CN 104836025B
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Abstract
The invention discloses a kind of small-sized polarization reconfigurable antenna, include the antenna element of some two-dimensional arrays of direction in length and breadth arrangement, each antenna element includes two feed ports, each antenna element connects a feed port of the antenna element by the amplitude such as first equiphase power splitter, forms subarray；Each antenna element connects another feed port of the antenna element by the amplitude such as second equiphase power splitter, forms the array of orthogonal rotation direction；The amplitude such as amplitude power splitter and the second equiphase power splitters such as first equiphase are switched by one-to-two and are connected with signal feed-in port.The present invention, which possesses the antenna, has small volume, realizes simply, is easy to the advantages that integrated, and for left-handed and dextrorotation Multi-Function Antenna can be realized on common antenna.
Description
Technical field
The invention belongs to antenna technology, more particularly to a kind of polarization restructural circular polarized antenna.
Background technology
Antenna is the essential component of many microwave and millimeter wave systems, right with the fast development of Modern Communication System
The small size of antenna, low cost, high Planar integration degree and higher multi-functional there is urgent demand.Reconfigurable antenna and tradition
Antenna is compared, and has that size is small, in light weight, the advantages that being easy to diversity.Because modern individual layer PCB technology is very ripe, it be not
In very high frequency range, machining accuracy is also very guaranteed, while the product processed can possess low profile, small size, Gao Ji
Cheng Du characteristic, be advantageous to the large-scale production and application of antenna.Therefore, using the polarization reconfigurable antenna of individual layer PCB technology
In low profile, high integration and reduce and have very real meaning in cost.
It is light to serve act foot as a kind of part for being used for launching and receiving radio wave in a wireless communication system for antenna
The effect of weight, is indispensable part in wireless communication system.Develop rapidly, to antenna with wireless communication system
Requirement also more and more higher.On the one hand, it is necessary to which antenna can be another with multiple-working mode and with good transmission performance
Aspect, mitigate the weight of antenna again, reduce antenna volume and reduce cost.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention provides a kind of small-sized polarization restructural
Antenna, it is that one kind is easy to Planar integration, simple in construction, size is small, realizes simply, be able to can be realized on common antenna left-handed
With the Multi-Function Antenna of dextrorotation.
Technical scheme：To achieve the above object, the technical solution adopted by the present invention is：
A kind of small-sized polarization reconfigurable antenna, it is characterised in that：Include the day of some two-dimensional arrays of direction in length and breadth arrangement
Line unit, each antenna element include two feed ports, and each antenna element passes through the amplitude work(such as first equiphase
Divide device to connect a feed port of the antenna element, form subarray；Each antenna element passes through second equiphase etc.
Amplitude power splitter connects another feed port of the antenna element, forms the array of orthogonal rotation direction；First equiphase
Switched by one-to-two and be connected with signal feed-in port etc. the amplitude such as amplitude power splitter and the second equiphase power splitter.
Further, the antenna element includes dielectric substrate, upper metal level, lower metal layer and some metal throuth holes, institute
State dielectric substrate to be arranged between metal level and lower metal layer, the metal throuth hole runs through dielectric substrate, and upper/lower terminal point
Above metal level and lower metal layer, each metal throuth hole array resonator Lian Jie not be arranged into.
Further, the profile of the resonator is square.
Further, the mode of operation of the antenna element is high order degenerate mode TE120 and the TE210 mould of resonator
Formula.
Further, two feed ports of the antenna element are arranged on metal level, the feed port etching
Go out gap as finite ground coplanar waveguide transmission line, feed of the finite ground coplanar waveguide transmission line as antenna element
Structure.
Further, the surrounding of resonator etches four gaps that width is identical but length is different on the lower metal layer
As radiating slot, irradiation structure of the radiating slot as antenna element.
Further, two feed port phases on the antenna element differ 90 degree.
Further, the first Wilkinson power divider point that the amplitude power splitter such as described first equiphase passes through multiple amendments
Chuan Jie not the amplitude power splitter such as respective antenna unit, second equiphase the second Wilkinson power divider for passing through multiple amendments
Respective antenna unit is concatenated respectively.
Further, first Wilkinson power divider and corresponding antenna of longitudinal antenna element by corresponding amendment
One of feed port series system composition subarray of unit, then passes through first in the horizontal by the subarray after series connection
The amplitude such as equiphase power splitter simultaneously combines as a whole；Likewise, the second prestige that antenna element longitudinal first passes through corresponding amendment
Another feed port series system of Er Jinsen power splitters and antenna element forms subarray, then by the subarray after series connection
By the amplitude such as second equiphase power splitter and combine as a whole in the horizontal.
Further, the amplitude power splitter such as amplitude power splitter and the second equiphase such as described first equiphase is amendment
Wilkinson power divider.
Beneficial effect：Advantages of the present invention is as follows：
1st, whole antenna element is mainly made up of metal level and plated-through hole, total can with traditional PCB or
LTCC techniques are realized；
2nd, the antenna can be switched by one-to-two and realize left-handed and two kinds of circular polarisation modes of dextrorotation, can simply be realized small-sized
Change reconfigurable antenna；
3rd, the antenna size is small, realizes that simple, easy to process, profile is low, is easy to integrate.
Brief description of the drawings
Fig. 1 is a kind of main structure diagram of antenna element in polarization reconfigurable antenna；
Fig. 2 is the backsight structural representation of antenna element；
Fig. 3 is the main structure diagram of 2 × 2 polarization reconfigurable antenna arrays；
Fig. 4 is the backsight structural representation of polarization reconfigurable antenna array shown in Fig. 3；
Fig. 5 is the cross section structure diagram of plated-through hole；
Fig. 6 is the return loss when one-to-two switch that antenna is emulated and tested is opened to one side respectively | S11|；
Fig. 7 is total gain pattern of actual measurement antenna dextrorotation in frequency 5.9GHz；
Fig. 8 is the actual measurement antenna total gain pattern left-handed in frequency 5.9GHz；
Fig. 9 is in normal orientation, and the axle under actual measurement dextrorotation antenna changes with frequency closes than variation relation and change in gain
System's figure；
Figure 10 is in normal orientation, and the axle surveyed under left-handed antenna changes with frequency closes than variation relation and change in gain
System's figure.
Figure 11 is in normal orientation, surveys the main polarization and cross-polarized level relative value figure of antenna.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
It is a kind of small-sized polarization reconfigurable antenna as shown in Figure 1, 2, includes the two-dimensional array of some directions in length and breadth expansion
The antenna element of arrangement, each antenna element include two feed ports, two feed ports on the antenna element
Phase differs 90 degree, and each antenna element connects one of the antenna element by the amplitude such as first equiphase power splitter 51
Feed port, form subarray；Each antenna element connects the antenna list by the amplitude such as second equiphase power splitter 52
Another feed port of member, form the array of orthogonal rotation direction.The phases such as the amplitude power splitters such as first equiphase 51 and second
The amplitude power splitters 52 such as position are switched by one-to-two and are connected with signal feed-in port 9.The signal feed-in port 9 passes through one-to-two
The different feed ports of selective feed antenna unit are switched, so as to control the rotation direction of antenna element.
Specifically, the first Wilkinson power divider 61 that the amplitude power splitter 51 such as described first equiphase passes through multiple amendments
Second Wilkinson work(of the amplitude power splitter 52 such as respective antenna unit, second equiphase by multiple amendments is concatenated respectively
Device 62 is divided to concatenate respective antenna unit respectively.The amplitude such as equiphase of the amplitude power splitters such as first equiphase 51 and second work(point
Device 52 is the Wilkinson power divider of amendment.
2 × 2 polarization reconfigurable antenna array, first Longitudinal Antenna unit pass through specific expansion mode as shown in Figure 3, Figure 4
First Wilkinson power divider 61 of corresponding amendment and one of feed port series system group of corresponding antenna element
Into subarray, then the subarray after series connection by the amplitude such as first equiphase power splitter 51 and is combined as a whole in the horizontal；
Likewise, antenna element longitudinal first passes through the another of the second Wilkinson power divider 62 of corresponding amendment and antenna element
Individual feed port series system forms subarray, and the subarray after series connection is then passed through into the amplitudes such as the second equiphase in the horizontal
Power splitter 52 simultaneously combines as a whole.The amplitude power splitters 52 such as the equiphase of the amplitude power splitters such as first equiphase 51 and second pass through
The coplanar waveguide ground transmission line 71,72 of corresponding length makes up the phase difference between consecutive antenna unit.
Based on above-mentioned, as shown in figure 5, the antenna element includes dielectric substrate 1, upper metal level 21, the and of lower metal layer 22
Some metal throuth holes, the dielectric substrate 1 are arranged between metal level 21 and lower metal layer 22, and the metal throuth hole is through Jie
Matter substrate 1, and upper/lower terminal connects metal level 21 and lower metal layer 22 respectively, each metal throuth hole array is arranged into
Resonator 4.The profile of the resonator 4 is square, and the mode of operation of the antenna element is the high order degenerate mode of resonator 4
TE120 and TE210 patterns, the specific size of the profile of resonator 4 are calculated according to the high order degenerate mode.
Two feed ports of the antenna element are arranged on metal level 21, and the feed port etches gap work
For finite ground coplanar waveguide transmission line 2 (FG-CPW), feedback of the finite ground coplanar waveguide transmission line 2 as antenna element
Electric structure.The surrounding of resonator 4 etches four gaps that width is identical but length is different as spoke on the lower metal layer 22
Penetrate gap 3, irradiation structure of the radiating slot 3 as antenna element.The one-to-two switch determines the feed mouth of antenna, from
And determine the polarization mode of antenna.
In the present invention, do not carried out based on square substrate integrated waveguide back cavity circular polarisation day antenna element from four angular direction
During feed, phase differs 90 degree successively, therefore field phase is radiated when being fed by adjacent port and differs 90 degree, and the array of composition leads to
The field phase for crossing whole aerial array after power splitter connects also differs 90 degree, so as to realize the left-handed and dextrorotation of circular polarized antenna.
Based on inventive concept, circular polarized antenna is made using PCB technology, and carry out dependence test：Fig. 6 is the antenna array
The return loss of emulation and the test of row | S11|；Fig. 7 is total gain pattern of the actual measurement antenna in frequency 5.9GHz dextrorotation；
Fig. 8 is actual measurement antenna in total gain pattern left-handed frequency 5.9GHz；Fig. 9 is in normal orientation, surveys dextrorotation antenna
Axle under changing with frequency is than variation relation and change in gain relation；Figure 10 is in normal orientation, surveys left-handed antenna with frequency
Axle under rate change is than variation relation and change in gain relation；Figure 11 is in normal orientation, and actual measurement antenna is main polarization and intersects
The level relative value of polarization.Test shows that antenna element has left-handed and dextrorotation polarization characteristic simultaneously, meets preferable entelechy
Change characteristic, relatively low cross polarization level, and profile is low, small volume, realize it is simple.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (6)
- A kind of 1. small-sized polarization reconfigurable antenna, it is characterised in that：Include the antenna of some two-dimensional arrays of direction in length and breadth arrangement Unit, each antenna element include two feed ports, and each antenna element passes through the amplitude such as first equiphase work(point Device（51）A feed port of the antenna element is connected, forms subarray；Each antenna element passes through the second equiphase Etc. amplitude power splitter（52）Another feed port of the antenna element is connected, forms the array of orthogonal rotation direction；Described first The amplitude power splitter such as equiphase（51）With the amplitude power splitter such as the second equiphase（52）Pass through one-to-two switch and signal feed side Mouthful（9）Connection；The antenna element includes dielectric substrate（1）, upper metal level（21）, lower metal layer（22）It is described with some metal throuth holes Dielectric substrate（1）It is arranged on metal level（21）And lower metal layer（22）Between, the metal throuth hole runs through dielectric substrate（1）, And upper/lower terminal connects metal level respectively（21）And lower metal layer（22）, each metal throuth hole array is arranged into resonance Chamber（4）；The resonator（4）Profile to be square；The lower metal layer（22）The surrounding of upper resonator 4 etches four gaps that width is identical but length is different as radiation Gap（3）, the radiating slot（3）Irradiation structure as antenna element；Two feed port phases on the antenna element differ 90 degree.
- A kind of 2. small-sized polarization reconfigurable antenna according to claim 1, it is characterised in that：The work of the antenna element Pattern is resonator（4）High order degenerate mode TE120 and TE210 pattern.
- A kind of 3. small-sized polarization reconfigurable antenna according to claim 1, it is characterised in that：Two of the antenna element Feed port is arranged on metal level（21）On, the feed port etches gap as finite ground coplanar waveguide transmission line （2）, the finite ground coplanar waveguide transmission line（2）Feed structure as antenna element.
- A kind of 4. small-sized polarization reconfigurable antenna according to claim 1, it is characterised in that：The first equiphase constant amplitude Spend power splitter（51）Pass through the first Wilkinson power divider of multiple amendments（61）Concatenation respective antenna unit respectively, described second The amplitude power splitter such as equiphase（52）Pass through the second Wilkinson power divider of multiple amendments（62）Respective antenna list is concatenated respectively Member.
- A kind of 5. small-sized polarization reconfigurable antenna according to claim 4, it is characterised in that：The antenna element of longitudinal direction passes through First Wilkinson power divider of corresponding amendment（61）With one of feed port series system of corresponding antenna element Subarray is formed, the subarray after series connection is then passed through into the amplitude power splitter such as first equiphase in the horizontal（51）Parallel connection is one Body；Likewise, the second Wilkinson power divider that antenna element longitudinal first passes through corresponding amendment（62）With antenna element Another feed port series system composition subarray, the subarray after series connection is then passed through into the second equiphase in the horizontal Etc. amplitude power splitter（52）And combine as a whole.
- A kind of 6. small-sized polarization reconfigurable antenna according to claim 4, it is characterised in that：The first equiphase constant amplitude Spend power splitter（51）With the amplitude power splitter such as the second equiphase（52）It is the Wilkinson power divider of amendment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510253270.8A CN104836025B (en) | 2015-05-18 | 2015-05-18 | A kind of small-sized polarization reconfigurable antenna |
Applications Claiming Priority (1)
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|---|---|---|---|
| CN201510253270.8A CN104836025B (en) | 2015-05-18 | 2015-05-18 | A kind of small-sized polarization reconfigurable antenna |
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| CN104836025A CN104836025A (en) | 2015-08-12 |
| CN104836025B true CN104836025B (en) | 2017-12-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110783701A (en) * | 2019-09-25 | 2020-02-11 | 西安电子科技大学 | Circular polarization reconfigurable antenna integrated with adjustable phase-shifting power divider |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107046169B (en) * | 2016-10-31 | 2019-06-25 | 东南大学 | A kind of polarization reconfigurable antenna |
| KR102482071B1 (en) * | 2018-02-14 | 2022-12-28 | 삼성전자주식회사 | Antenna using multi-feeding and electronic device including the same |
| CN109687133B (en) * | 2019-01-08 | 2024-02-20 | 国网福建省电力有限公司南平供电公司 | Miniaturized big dipper satellite terminal antenna |
| CN110911811B (en) * | 2019-10-19 | 2022-02-22 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | Dual-polarized array antenna capable of being realized by single dielectric plate |
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