CN106549232A - A kind of complementary double frequency cross polarization microstrip antenna array method for designing - Google Patents
A kind of complementary double frequency cross polarization microstrip antenna array method for designing Download PDFInfo
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- CN106549232A CN106549232A CN201610961635.7A CN201610961635A CN106549232A CN 106549232 A CN106549232 A CN 106549232A CN 201610961635 A CN201610961635 A CN 201610961635A CN 106549232 A CN106549232 A CN 106549232A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0087—Apparatus or processes specially adapted for manufacturing antenna arrays
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Abstract
The invention discloses a kind of complementary double frequency cross polarization microstrip antenna array method for designing, the method for designing includes：Zoom in or out to selecting antenna size, by frequency translation to two working frequency points, obtain low-frequency antenna and high frequency antenna；In low-frequency antenna, parasitic patch size is reduced respectively, obtain low-frequency antenna A and B；Low-frequency antenna A, high frequency antenna and low-frequency antenna B are combined, public parasitic patch obtains bay；High frequency antenna is rotated by 90 °, array element A is obtained, 2 low-frequency antennas are rotated by 90 °, array element B is obtained；Array element A and B are carried out into a group battle array, 2 complementary double frequency cross polarization microstrip antenna arrays are obtained.The present invention adopts public parasitic patch, effectively reduces the size of antenna；The characteristic of double frequency and cross polarization is realized by the way of low-frequency antenna A, high frequency antenna and low-frequency antenna B assembled arrangements；With extensibility, a group battle array is suitable to；With complementarity, two kinds of double frequency cross polarization microstrip antenna arrays of complementation can be designed.
Description
Technical field
The present invention relates to the technical field of microstrip antenna array design, more particularly to a kind of complementary double frequency cross polarization micro-strip
Antenna array design method, which adopts the microstrip antenna array of public parasitic patch.
Background technology
Microstrip antenna is had low, lightweight section, easy processing, easy conformal installation and can be made with other components
The advantages of same circuit.Microstrip antenna uses multiple structure, adds parasitic patch, can increase bandwidth of operation.Using orthopole
The working method of change can improve the isolation of antenna port, mention antenna efficiency.Double-frequency micro-strip antenna generally can be by two kinds
Mode is realized：Two frequency ranges are covered simultaneously using dual-band unit, and this structure uses a kind of feeding network, and structure is relatively easy,
But frequency is than bad control, and the bandwidth relative narrower of two frequency bands, front area is relatively large；Using two different operatings
The unit combination of frequency band, this structure frequency range is than relatively good adjustment, but its feed structure is relatively complicated.
Found according to retrieval at present, (Z.N.Chen, " Wideband microstrip antennas such as Nasimuddin
with sandwich substrate,"IET Microw.Antennas Propag.,vol.2,pp.538-546,2008.)
A kind of microstrip antenna for adopting 4 parasitic patch is proposed, using the structure of three laminar substrates, can effective broadening bandwidth.Jie
Wu etc. (Y.J.Cheng and Y.Fan, " Millimeter-wave wideband high-efficiency circularly
polarized array antenna,"IEEE Trans.Antennas Propag.,vol.64,pp.535-542,2016.)
A kind of microstrip antenna for adopting 4 parasitic patch proposed equally, and by aperture-coupled realizing broadband.
(W.A.Chamma, M.Barakat, P.C.Strickland, and the G.Seguin, " Dual- such as Lotfollah L.Shafai
Band Dual-Polarized Perforated Microstrip Antenna for SAR Application,"IEEE
Trans.Antennas Propag., vol.46, pp.58-66,2000.) propose a kind of dual-band and dual-polarization for being applied to SAR
Microstrip antenna array, carries out group altogether mouth face design using two kinds of microstrip antennas of different frequency range, realizes the miniaturization of array and double
Frequency operating characteristic, and change distributing point direction and realize dual polarization.Ralph Pokuls etc. (J.Uher and D.M.Pozar, "
Dual-Frequency and Dual-Polarization Microstrip Antennas for SAR
Application, " IEEE Trans.Antennas Propag., vol.46, pp.1289-1296,1998.) discuss double frequency
The method for designing of dual-polarized, microstrip battle array, by the contrast of the compound mode of three kinds of array-element antenna types, draws slot antenna with patch
Chip antenna combination is with simple structure, the good advantage of radiance.
The content of the invention
The technical problem to be solved is：A kind of complementary double frequency cross polarization microstrip antenna array design side is provided
Method so that the broadband microstrip antenna for typically having 4 parasitic patch can constitute microstrip array, meet miniaturization, two-frequency operation
With cross polarization characteristic.
The technical solution used in the present invention is：A kind of complementary double frequency cross polarization microstrip antenna array method for designing is provided,
Its design procedure is as follows：
Select the single-frequency single polarization broadband microstrip antenna structure typically with 4 parasitic patch；
Following step design is respectively adopted to the single-frequency single polarization broadband microstrip antenna unit：
By zooming in or out for antenna structure size, Antenna Operation frequency range is moved to two required frequency ranges,
So that large-size antennae structure correspondence low frequency, small-sized antenna structure correspondence high frequency；
In the low-frequency antenna structure, by the size reduction of 2 parasitic patch on the right side of distributing point, with the high frequency antenna
In structure, the parasitic patch consistent size of correspondence position, obtains low-frequency antenna A；Equally by 2 parasitic patch on the left of distributing point
Size reduction, obtains low-frequency antenna B；
Order permutation and combination according to low-frequency antenna A, high frequency antenna and low-frequency antenna B is microstrip antenna array element, is removed
Size in low-frequency antenna little parasitic patch is replaced the parasitic patch of high frequency antenna by 4 parasitic patch of high frequency antenna so that
High frequency antenna and the public parasitic patch of low-frequency antenna A and B；
High frequency antenna is rotated by 90 ° centered on each paster, microstrip antenna array element A is constituted, equally by 2 low-frequency antennas
It is rotated by 90 ° centered on each paster, constitutes microstrip antenna array unit B；
According to required gain and pattern requirements, microstrip antenna the array element A and B can be combined as array, and according to
Array element quantitative design feeding network, forms two kinds of complementary double frequency cross polarization microstrip antenna arrays.
When specifically, according to the order permutation and combination of low-frequency antenna A, high frequency antenna and low-frequency antenna B, it is ensured that 3 antennas
Polarised direction is identical, and antenna substrate merges into entirety.
Specifically, the public parasitic patch is not rotated with low-frequency antenna with high frequency antenna rotation.
Specifically, adjust the spacing of 4 parasitic patch in the low-frequency antenna A and B so as to which working frequency range does not offset, protect
In card frequency range, antenna pattern is not distorted.
Specifically, microstrip antenna array metal floor isolation feeding network and radiation patch, prevent feeding network radiation effect
Array radiation patterns.
Specifically, this microstrip antenna array method for designing is applied to frequency ratio<2 wideband microstrip battle array structure.
Present invention advantage compared with prior art is：
(1) mentality of designing of the present invention using public parasitic patch, before working frequency range and good radiance is ensured
Put, effectively reduce the size of antenna array.
(2) order permutation and combination method of the present invention using low-frequency antenna A, high frequency antenna and low-frequency antenna B, is ensureing wide
On the premise of frequency band, the characteristic of double frequency and cross polarization is realized.
(3) present invention has extensibility, combines the array of different units number according to demand, matches corresponding feeding network,
Realize double frequency cross polarization micro-strip antenna array.
(4) present invention has complementarity, can design two kinds of double frequency cross polarization microstrip antenna arrays of complementation.
Description of the drawings
Fig. 1 is a kind of complementary double frequency cross polarization microstrip antenna array method for designing flow chart of the present invention；
Fig. 2A is that the present invention selectes the broadband microstrip antenna side view typically with 4 parasitic patch；
Fig. 2 B are that the vertical view of the selected broadband microstrip antenna first medium substrate typically with 4 parasitic patch of the present invention is shown
It is intended to；
Fig. 2 C are that the vertical view of the selected broadband microstrip antenna second medium substrate typically with 4 parasitic patch of the present invention is shown
It is intended to；
Fig. 3 is present example low-frequency antenna parasitic patch and the synthesis schematic diagram for driving paster；
Fig. 4 is present example high frequency antenna parasitic patch and the synthesis schematic diagram for driving paster；
Fig. 5 A are present example low-frequency antenna A parasitic patch and the synthesis schematic diagram for driving paster；
Fig. 5 B are present example low-frequency antenna B parasitic patch and the synthesis schematic diagram for driving paster；
Fig. 6 is present example microstrip antenna array element parasitic patch and the synthesis schematic diagram for driving paster；
Fig. 7 A are present example microstrip antenna array element A parasitic patch and the synthesis schematic diagram for driving paster；
Fig. 7 B are present example microstrip antenna array unit B parasitic patch and the synthesis schematic diagram for driving paster；
Fig. 8 A are that five yuan of double frequency cross polarization microstrip antenna array A parasitic patch of present example are illustrated with paster synthesis is driven
Figure；
Fig. 8 B are five yuan of double frequency cross polarization microstrip antenna array A feeding network schematic diagrams of present example；
S parameter simulation curves of Fig. 8 C for five yuan of double frequency cross polarization microstrip antenna array A of present example；
Fig. 8 D be five yuan of double frequency cross polarization microstrip antenna array A low frequencies of present example it is main polarization/cross polarization gain side
Xiang Tu；
Fig. 8 E be five yuan of double frequency cross polarization microstrip antenna array A high frequencies of present example it is main polarization/cross polarization gain side
Xiang Tu；
Fig. 9 A are that five yuan of double frequency cross polarization microstrip antenna array B parasitic patch of present example are illustrated with paster synthesis is driven
Figure；
Fig. 9 B are five yuan of double frequency cross polarization microstrip antenna array B feeding network schematic diagrams of present example；
Wherein, reference implication is：
200：The selected single-frequency single polarization broadband microstrip antenna typically with 4 parasitic patch；
210：The first surface of selected antenna；
211：The parasitic patch of selected antenna；
220：The first medium substrate of selected antenna；
230：The second surface of selected antenna；
231：The driving paster of selected antenna；
240：The second medium substrate of selected antenna；
250：3rd surface of selected antenna；
260：3rd medium substrate of selected antenna；
270：4th surface of selected antenna；
310：Low-frequency antenna；
311：Parasitic patch on the left of the distributing point of low-frequency antenna；
312：Parasitic patch on the right side of the distributing point of low-frequency antenna；
410：High frequency antenna；
411：Parasitic patch on the left of the distributing point of high frequency antenna；
412：Parasitic patch on the right side of the distributing point of high frequency antenna；
510：Low-frequency antenna A；
520：Low-frequency antenna B；
610：Microstrip antenna array element；
611：Public parasitic patch in microstrip antenna array element；
710：Microstrip antenna array element A；
720：Microstrip antenna array unit B；
810：Five yuan of double frequency cross polarization microstrip antenna array A；
820：Five yuan of double frequency cross polarization microstrip antenna array A feeding networks；
910：Five yuan of double frequency cross polarization microstrip antenna array B；
920：Five yuan of double frequency cross polarization microstrip antenna array B feeding networks；
L1：Large scale parasitic patch and small size parasitic patch spacing in low-frequency antenna A and B；
W1：Parasitic patch spacing in low-frequency antenna；
W2：Parasitic patch spacing in high frequency antenna.
Specific embodiment
Describe the present invention below in conjunction with the drawings and specific embodiments, but it is not as a limitation of the invention.
Fig. 1 is a kind of complementary double frequency cross polarization microstrip antenna array method for designing flow chart of the present invention.Such as institute in Fig. 1
Show, the method for the present embodiment includes：
Select the single-frequency single polarization broadband microstrip antenna structure 200 typically with 4 parasitic patch；
Following step design is respectively adopted to the single-frequency single polarization broadband microstrip antenna unit：
Step 110：Zoom in or out to being chosen to be microstrip antenna size.
In step, specifically, zooming in or out by antenna structure size, Antenna Operation frequency range is moved to institute
In two frequency ranges for needing so that large-size antennae structure correspondence low frequency 310, small-sized antenna structure correspondence high frequency 410；
Step 120：In low-frequency antenna structure 310, size reduction is distinguished to distributing point left and right sides parasitic patch.
Specifically, in the low-frequency antenna structure 310, by the size reduction of 2 parasitic patch 312 on the right side of distributing point,
With 412 consistent size of parasitic patch of correspondence position in 410 structure of the high frequency antenna, low-frequency antenna A510 is obtained；Equally will
The size reduction of 2 parasitic patch 311 on the left of distributing point, obtains low-frequency antenna B520；
Step 130：Low-frequency antenna A510, high frequency antenna 410 and low-frequency antenna B520 are combined, and removes high frequency antenna
4 parasitic patch 411 and 412 in 410.
Specifically, according to low-frequency antenna A510, high frequency antenna 410 and low-frequency antenna B520 order permutation and combination be micro-strip
Antenna array element 610, removes 4 parasitic patch 411 and 412 of high frequency antenna 410, by size in low-frequency antenna A510 and B520
Little parasitic patch 611 replaces the parasitic patch 411 and 412 of high frequency antenna so that high frequency antenna 410 and low-frequency antenna A510 and
The public parasitic patch of B520 611；
Step 140：By the high frequency antenna 410 in combination and 2 low-frequency antennas 510 and 520, it is rotated by 90 ° respectively.
Specifically, high frequency antenna 410 is rotated by 90 ° centered on each paster, constitutes microstrip antenna array element A710, equally
2 low-frequency antennas 510 and 520 are rotated by 90 ° centered on each paster, composition microstrip antenna array unit B 720；
Step 150：Array element is carried out into a group battle array, and designs feeding network.
Specifically, according to required gain and pattern requirements, the microstrip antenna array element 710 and 720 can be combined as
Array, and according to array element quantitative design feeding network 820 and 920, form two kinds of complementary double frequency cross polarization micro-strip days
Linear array, such as five yuan battle arrays 810 and 910.
When specifically, according to the order permutation and combination of low-frequency antenna A510, high frequency antenna 410 and low-frequency antenna B520, protect
3 antenna polarization directions of card are identical, and antenna substrate merges into entirety.
Specifically, the public parasitic patch 611 is rotated with high frequency antenna 410, is not revolved with low-frequency antenna 510 and 520
Turn；
Specifically, adjust spacing L1 of 4 parasitic patch in the low-frequency antenna A510 and B520 so as to which working frequency range is not
Skew, it is ensured that antenna pattern is not distorted in frequency range.
Specifically, microstrip antenna array metal floor isolation feeding network and radiation patch, prevent feeding network radiation effect
Array radiation patterns.
Specifically, this microstrip antenna array method for designing is applied to frequency ratio<2 wideband microstrip battle array structure.
As shown in Fig. 2A, 2B and 2C, it is three ply board pressing structure to select antenna 200：It is situated between including first surface 210, first
Matter substrate 220, second surface 230, second medium substrate 240, the 3rd surface 250, the 3rd medium substrate 260 and the 4th surface
270；It is parasitic patch 211 on first surface 210；It is driving paster 231 on second surface 230；3rd surface 250 is antenna
Metal floor；It is feed line on 4th surface 700.
As shown in Figures 3 and 4,4 parasitic patch 311 and 312 of low-frequency antenna 310 are at a distance of W1,4 of high frequency antenna 410
Parasitic patch 411 and 412 is at a distance of W2.
As shown in Figure 5 A and 5B, two kinds of various sizes of parasitic patch spacing in low-frequency antenna A510 and low-frequency antenna B520
For L1.
As shown in Fig. 6,7A and 7B, in microstrip antenna array element 610, high frequency antenna 410, low-frequency antenna A510 and low frequency
The public parasitic patch of antenna B520 611；Microstrip antenna array element A710 is low-frequency antenna A510,410 and of high frequency antenna of rotation
Low-frequency antenna B520 is constituted, and microstrip antenna array unit B 720 is the low of low-frequency antenna A510, high frequency antenna 410 and the rotation of rotation
Frequency antenna B520 is constituted.
As shown in Fig. 8 A, 8B, five yuan of double frequency cross polarization microstrip antenna arrays 810 by 5 microstrip antenna array element A710 and
Feeding network 820 is constituted.
As shown in Figure 8 C, which is the S parameter simulation curve of five yuan of double frequency cross polarization microstrip antenna array A of present example,
Two-port isolation is all higher than 20dB, low-frequency band a width of 40%, and high frequency bandwidth is 19.7%.
As shown in Fig. 8 D and 8E, its be five yuan of double frequency cross polarization microstrip antenna array A high frequencies of present example it is main polarization/hand over
Fork polarized gain directional diagram, two frequency range cross polarizations are respectively 40dB and 27dB, and beam angle is respectively ± 21 ° and ± 15 °.
As shown in Fig. 9 A, 9B, five yuan of double frequency cross polarization microstrip antenna arrays 910 are by 5 720 Hes of microstrip antenna array unit B
Feeding network 920 is constituted.
From the invention described above preferred embodiment, using advantages of the present invention it is：Using public parasitic patch, effectively subtract
The size of miniature antenna；Double frequency and orthopole are realized by the way of low-frequency antenna A, high frequency antenna and low-frequency antenna B assembled arrangements
The characteristic of change；With extensibility, a group battle array is suitable to；With complementarity, two kinds of double frequency cross polarization micro-strip days of complementation can be designed
Linear array.
Certainly, the present invention can also have other various embodiments, in the case of without departing substantially from spirit of the invention and its essence, ripe
Know those skilled in the art still to modify the technical method described in previous embodiment, or to which part
Or all technical characteristic carries out equivalent, the essence of appropriate technical solution is not made to depart from various embodiments of the present invention technical side
The scope of case.
Claims (6)
1. a kind of complementary double frequency cross polarization microstrip antenna array method for designing, it is characterised in that：The method at least includes as follows
Step：
Select the single-frequency single polarization broadband microstrip antenna structure typically with 4 parasitic patch；
Following step design is respectively adopted to the single-frequency single polarization broadband microstrip antenna unit：
By zooming in or out for antenna structure size, Antenna Operation frequency range is moved to two required frequency ranges so that
Large-size antennae structure correspondence low frequency, small-sized antenna structure correspondence high frequency；
In the low-frequency antenna structure, by the size reduction of 2 parasitic patch on the right side of distributing point, with the high frequency antenna structure
The parasitic patch consistent size of middle correspondence position, obtains low-frequency antenna A；Equally by the size of 2 parasitic patch on the left of distributing point
Reduce, obtain low-frequency antenna B；
Order permutation and combination according to low-frequency antenna A, high frequency antenna and low-frequency antenna B is microstrip antenna array element, removes high frequency
Size in low-frequency antenna little parasitic patch is replaced the parasitic patch of high frequency antenna so that high frequency by 4 parasitic patch of antenna
Antenna and the public parasitic patch of low-frequency antenna A and B；
High frequency antenna is rotated by 90 ° centered on each paster, microstrip antenna array element A is constituted, equally by 2 low-frequency antennas with each
It is rotated by 90 ° centered on paster, constitutes microstrip antenna array unit B；
According to required gain and pattern requirements, microstrip antenna the array element A and B can be combined as array, and according to array
Element number designs feeding network, forms two kinds of complementary double frequency cross polarization microstrip antenna arrays.
2. a kind of complementary double frequency cross polarization microstrip antenna array method for designing according to claim 1, it is characterised in that：
According to low-frequency antenna A, high frequency antenna and low-frequency antenna B order permutation and combination when, it is ensured that 3 antenna polarization directions are identical, and
Antenna substrate merges into entirety.
3. a kind of complementary double frequency cross polarization microstrip antenna array method for designing according to claim 1, it is characterised in that：
The public parasitic patch is rotated with high frequency antenna, is not rotated with low-frequency antenna.
4. a kind of complementary double frequency cross polarization microstrip antenna array method for designing according to claim 1, it is characterised in that：
Adjust the spacing of 4 parasitic patch in the low-frequency antenna A and B so as to which working frequency range does not offset, it is ensured that radiation direction in frequency range
Figure is not distorted.
5. a kind of complementary double frequency cross polarization microstrip antenna array method for designing according to claim 1, it is characterised in that：
Microstrip antenna array metal floor isolates feeding network and radiation patch, prevents feeding network radiation effect array radiation patterns.
6. a kind of complementary double frequency cross polarization microstrip antenna array method for designing according to claim 1, it is characterised in that：
This microstrip antenna array method for designing is applied to frequency ratio<2 wideband microstrip battle array structure.
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Cited By (4)
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| CN109830802A (en) * | 2019-01-08 | 2019-05-31 | 南通至晟微电子技术有限公司 | A kind of millimeter wave dual-polarized patch antenna |
| CN110783702A (en) * | 2019-10-31 | 2020-02-11 | Oppo广东移动通信有限公司 | Antenna module and electronic equipment |
| CN111710970A (en) * | 2020-06-08 | 2020-09-25 | Oppo广东移动通信有限公司 | Millimeter wave antenna module and electronic equipment |
| WO2021083027A1 (en) * | 2019-10-31 | 2021-05-06 | Oppo广东移动通信有限公司 | Antenna module and electronic device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109830802A (en) * | 2019-01-08 | 2019-05-31 | 南通至晟微电子技术有限公司 | A kind of millimeter wave dual-polarized patch antenna |
| CN109830802B (en) * | 2019-01-08 | 2024-05-24 | 南通至晟微电子技术有限公司 | Millimeter wave dual-polarized patch antenna |
| CN110783702A (en) * | 2019-10-31 | 2020-02-11 | Oppo广东移动通信有限公司 | Antenna module and electronic equipment |
| WO2021083027A1 (en) * | 2019-10-31 | 2021-05-06 | Oppo广东移动通信有限公司 | Antenna module and electronic device |
| WO2021082967A1 (en) * | 2019-10-31 | 2021-05-06 | Oppo广东移动通信有限公司 | Antenna module and electronic device |
| CN110783702B (en) * | 2019-10-31 | 2021-08-24 | Oppo广东移动通信有限公司 | Antenna module and electronic equipment |
| CN111710970A (en) * | 2020-06-08 | 2020-09-25 | Oppo广东移动通信有限公司 | Millimeter wave antenna module and electronic equipment |
| CN111710970B (en) * | 2020-06-08 | 2022-07-08 | Oppo广东移动通信有限公司 | Millimeter wave antenna module and electronic equipment |
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