CN103326132A - Sixteen-unit micro-strip array antenna capable of carrying out power equal-division rotating feed - Google Patents

Sixteen-unit micro-strip array antenna capable of carrying out power equal-division rotating feed Download PDF

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Publication number
CN103326132A
CN103326132A CN2013101950134A CN201310195013A CN103326132A CN 103326132 A CN103326132 A CN 103326132A CN 2013101950134 A CN2013101950134 A CN 2013101950134A CN 201310195013 A CN201310195013 A CN 201310195013A CN 103326132 A CN103326132 A CN 103326132A
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minor matters
corner cut
impedance transformation
radiant body
transformation line
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CN2013101950134A
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Inventor
陈爱新
杨绰
张艳君
安康
闫伟
戴飞
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Beihang University
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Beihang University
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Abstract

The invention discloses a sixteen-unit micro-strip array antenna capable of carrying out power equal-division rotating feed. The sixteen-unit micro-strip array antenna capable of carrying out the power equal-division rotating feed is obtained in a copper coating configuration mode on a substrate, power is equally divided through a center feed network, four antenna array units are distributed, and the four antenna array units are arranged in a double-sequence mode. Due to the fact that the design mode of double-sequence rotation of feed networks is adopted by the sixteen-unit micro-strip array antenna capable of carrying out the power equal-division rotating feed, directivity of the sixteen-unit micro-strip array antenna capable of carrying out the power equal-division rotating feed can be better, the whole sixteen-unit micro-strip array antenna capable of carrying out the power equal-division rotating feed and the antenna array units have the same impedance characteristic and the same circular polarization characteristic or a better impedance characteristic and a better circular polarization characteristic, and the sixteen-unit micro-strip array antenna capable of carrying out the power equal-division rotating feed is more applicable to a satellite communication system.

Description

16 unit microstrip array antennas of minute rotating feed such as power
Technical field
The present invention relates to a kind of 16 unit microstrip array antennas that are applicable to wireless communication system, it is operated in the ka wave band take two sequentially rotating feeds of power five equilibrium as characteristics, has the characteristics of high-gain, circular polarization.
Background technology
At present, radio-frequency spectrum is undoubtedly most important strategic resource.(27GHz～40GHz) is the part in the millimeter wave frequency band to the Ka wave band, and millimetre wavelength between microwave and infrared between, thereby its characteristic also falls between to a certain extent, have bandwidth, wavelength is short, penetration power is strong characteristics, therefore such as moderate resolution and good flue dust penetrability, can finish in some cases microwave and the infrared task of finishing of all being difficult to.The Ka wave band antenna is compared with the microwave frequency band antenna, it has the following advantages: (1) wave beam narrow (being generally the milliradian magnitude), angle resoluting ability and the angle measurement accuracy of antenna be can improve, and anti-electronic jamming, noise jamming and multipath reflection interference etc. are conducive to.(2) because operating frequency is high, can obtain larger signal bandwidth (such as the gigahertz (GHZ) magnitude) and Doppler frequency shift, be conducive to improve certainty of measurement and resolution capability and the energy evaluating objects feature of distance and speed.(3) antenna aperture and element, device volume are little, are suitable for aircraft, satellite or guided missile to carry usefulness.The Ka wave band antenna has begun to be applied in airplane anti-collision radar, satellite communication, the phased array radar.
Microstrip antenna is a kind of new antenna form that 20 century 70s occur, it has the unexistent distinct advantages of conventional antenna such as reflector antenna, little, lightweight, cheap such as thin profile, volume, can place easily on the instrument panel and can be conformal with carrier surfaces such as guided missile, satellites, be easy to obtain circular polarization, easily realize two-band, dual polarization etc., particularly it can become piece integrated with feeding network with active device easily.
Although Ka wave band micro-strip antenna array has lot of advantages, but because its operating frequency is higher, thereby in design process, need to consider the impact that its surface wave loss, feeder loss and stray radiation, machining tolerance and mutual coupling etc. produce antenna, for multielement array irrational characteristics of Existential Space layout also.Evaluation for antenna performance can be with reference to the performance index in the GJB1035-90 satellite antenna general specification.
A kind of " based on little band order rotation array antenna of string and feedback feeding network " disclosed in publication number CN101572354A.Individual antenna unit in this microstrip antenna array adopts square corner cut patch design mode, and machine-shaping is simple; And the individual antenna unit adopts the feed microstrip line mode of bending allotment minor matters, also can make a plurality of antenna elements organize easily a gust configuration when mating.In group battle array process, employing order rotation array way and string are also presented feeding network, have improved significantly impedance bandwidth and the circular polarization purity of antenna, have reduced the loss of feeder line, have improved gain.
Summary of the invention
16 unit microstrip array antennas that the purpose of this invention is to provide minute rotating feed such as a kind of power, this Unit 16 microstrip antenna array adopts two order rotating feed network design modes, can make array and unit subarray have identical or better impedance and circular polarization characteristics, employing order rotating feed technology can be eliminated and not mate, and greatly improves the circular polarization performance.
16 unit microstrip array antennas of minute rotating feed such as a kind of power of the present invention, this array antenna includes the first antenna array element (1), the second antenna array element (2), third antenna array element (3), the 4th antenna array element (4) and apex drive network (5);
Wherein, the first antenna array element (1), the second antenna array element (2), third antenna array element (3) are identical with the structure of the 4th antenna array element (4);
The first antenna array element (1), the second antenna array element (2), third antenna array element (3) and the 4th antenna array element (4) according to clockwise direction be arranged in apex drive network (5) around;
The first antenna array element (1) is designated as d with the longitudinal pitch of the second antenna array element (2) 1-2The second antenna array element (2) is designated as d with the axial spacing of third antenna array element (3) 2-3Third antenna array element (3) is designated as d with the longitudinal pitch of the 4th antenna array element (4) 3-4The 4th antenna array element (4) is designated as d with the axial spacing of the first antenna array element (1) 4-1Then have
Figure BDA00003227399500021
λ gExpression substrate (10) is selected the wavelength of rapidoprint;
The first antenna array element (1), the second antenna array element (2), third antenna array element (3), the 4th antenna array element (4) and apex drive network (5) are to cover the copper configuration at substrate (10) to obtain.
Little band allotment minor matters employing order 90-degree rotation orientation of four antenna array elements of the present invention design installs, and guaranteed that the phase place between four antenna array elements differs 90 degree successively.
The advantage of 16 unit microstrip array antennas of minute rotating feed such as power of the present invention is:
1. the antenna array element that connects four clockwise feeds with the apex drive network of clockwise feed by four little band coupling minor matters, 16 unit microstrip array antennas of formation power five equilibrium, two order rotating feeds.
2. in the micro-strip array antenna structure, adopt two order rotating feed modes, at the apex drive network four feeding networks that structure is identical are installed, and the antenna element of four same structures is installed around feeding network, so that the phase place between feeding network and feeding network, feeding network and the antenna element differs 90 degree successively, reduced significantly reflection loss, improve the axial ratio bandwidth of array antenna, improved the circular polarization purity of array antenna.
3. four of five feeding networks λ/4 little with the impedance transformation line parallel in by the 3/4 annulus circuit that surrounds three feed sections, can reduce like this size of feeding network, reduce the launch loss of network, be easy to be extended to larger array.Antenna element adopts square corner cut antenna, simultaneously the TM of exciter two mutual quadratures 10And TM 01Degenerate mode, feeding network and feeding network adopt round and smooth microstrip line to be connected, in bandwidth of operation, guaranteed the circular polarization characteristics of antenna and impedance matching property consistent well.
4. aerial array of the present invention is in 28GHz～31GHz scope, and all less than-20dB, axial ratio is lower than 1dB to return loss, has obtained good bandwidth and circular polarization characteristics, and gain has also reached 19dBi.
5. employing order rotation mode is installed the antenna element of four same structures in the micro-strip array antenna structure, so that the phase place between four antenna elements differs 90 degree successively, improve significantly the axial ratio bandwidth of array antenna, greatly improved the circular polarization purity of array antenna.
6. antenna element adopts square corner cut and bends the structure that little band is allocated minor matters, and the antenna of this structure can encourage two mutually orthogonal TM simultaneously 10And TM 01Degenerate mode, thus produce circularly polarised wave, and use the little band allotment of bending minor matters to carry out impedance matching and to simplify feed structure antenna, the circular polarization characteristics that in working band, has guaranteed antenna and impedance matching property consistent well.
Three feed sections of 7. going here and there and presenting in the feeding network adopt the series connection form to connect, four λ/4 little with the impedance transformation line parallel in the 3/4 annulus circuit that is surrounded by three feed sections, this string and feedback feeding network can make the array antenna overall dimensions of producing little, the network insertion loss is little, and network configuration is simply compact, profile is small and exquisite, is suitable as the submatrix of large-scale array.
8. array antenna of the present invention can be applied in the Ka wave band, has reached 14dBi in the gain of 29GHz, and return loss is that 14.85%, 3dB axial ratio bandwidth is 5.51% less than the bandwidth of-10dB.
Description of drawings
Fig. 1 is the structure chart of 16 unit microstrip array antennas of minute rotating feed such as power of the present invention.
Fig. 2 is the structure chart of apex drive network of the present invention.
Fig. 2 A is the size marking figure of apex drive network of the present invention.
Fig. 3 is the structure chart of the present invention's the first antenna element.
Fig. 3 A is the size marking figure of the first feeding network of the present invention's the first antenna element.
Fig. 3 B is the size marking figure of first little band coupling minor matters of the present invention's the first antenna element.
Fig. 4 is the structure chart of the present invention's the second antenna element.
Fig. 5 is the structure chart of third antenna of the present invention unit.
Fig. 6 is the structure chart of the present invention's the 4th antenna element.
Fig. 7 A is the return loss plot figure of 16 unit microstrip array antennas of minute rotating feed such as power of the present invention.
Fig. 7 B is the axial ratio curve chart of 16 unit microstrip array antennas of minute rotating feed such as power of the present invention.
Fig. 7 C is the gain curve figure of 16 unit microstrip array antennas of minute rotating feed such as power of the present invention.
1. the first antenna array element 11. the first radiant body 111. the first square corner cut paster
111a.AA corner cut 111b.AB corner cut 112.AA minor matters
113.AB minor matters 12. the second radiant body 121. the second square corner cut paster
121a.AC corner cut 121b.AD corner cut 122.AC minor matters
123.AD minor matters 13. the 3rd radiant body 131. third party's shape corner cut paster
131a.AE corner cut 131b.AF corner cut 132.AE minor matters
133.AF minor matters 14. the 4th radiant body 141. square corner cut paster
141a.AG corner cut 141b.AH corner cut 142.AG minor matters
143.AH minor matters 15. the first feeding network 151. the 4th feed section
152. the 5th feed section 153. the 6th feed section 154. the 5th little band impedance transformation line
155. the 6th little band impedance transformation line 156. the 7th little band impedance transformation line 157. the 8th little band impedance transformation line
16. first little band allotment minor matters 161.AI minor matters 162.AJ minor matters
163.AK minor matters 164.AL corner cut 2. the second antenna array element
21. the 5th radiant body 211. the 5th square corner cut paster 211a.BA corner cut
211b.BB corner cut 212.BA minor matters 213.BB minor matters
22. the 6th radiant body 221. hexagon corner cut paster 221a.BC corner cut
221b.BD corner cut 222.BC minor matters 223.BD minor matters
23. the 7th radiant body 231. the 7th square corner cut paster 231a.BE corner cut
231b.BF corner cut 232.BE minor matters 233.BF minor matters
24. the 8th radiant body 241. all directions shape corner cut paster 241a.BG corner cut
241b.BH corner cut 242.BG minor matters 243.BH minor matters
25. the second feeding network 251. the 7th feed section 252. the 8th feed section
253. the 9th feed section 254. the 9th little band impedance transformation line 255. the tenth little band impedance transformation line
256. the 11 little band impedance transformation line 257. the 12 little band impedance transformation line 26. second little band allotment minor matters
261.BI minor matters 262.BJ minor matters 263.BK minor matters
264.BL corner cut 3. third antenna array element 31. the 9th radiant body
311. the 9th square corner cut paster 311a.CA corner cut 311b.CB corner cut
312.CA minor matters 313.CB minor matters 32. the tenth radiant body
321. the tenth square corner cut paster 321a.CC corner cut 321b.CD corner cut
322.CC minor matters 323.CD minor matters 33. the 11 radiant body
331. the 11 square corner cut paster 331a.CE corner cut 331b.CF corner cut
332.CE minor matters 333.CF minor matters 34. the 12 radiant body
341. 12 square corner cut pasters 341a.CG corner cut 341b.CH corner cut
342.CG minor matters 343.CH minor matters 35. the 3rd feeding network
351. the tenth feed section 352. the 11 feed section 353. the 12 feed section
354. the 13 little band impedance transformation line 355. the 14 little band impedance transformation line 356. the 15 little band impedance transformation line
357. the 16 little band impedance transformation line 36. the 3rd little band allotment minor matters 361.CI minor matters
362.CJ minor matters 363.CK minor matters 364.CL corner cut
4. the 4th antenna array element 41. the 13 radiant body 411. the 13 square corner cut paster
411a.DA corner cut 411b.DB corner cut 412.DA minor matters
413.DB minor matters 42. the 14 radiant body 421. the tenth square corner cut paster
421a.DC corner cut 421b.DD corner cut 422.DC minor matters
423.DD minor matters 43. the 15 radiant body 431. the 15 square corner cut paster
431a.DE corner cut 431b.DF corner cut 432.DE minor matters
433.DF minor matters 44. the 16 radiant body 441. the tenth hexagon corner cut paster
441a.DG corner cut 441b.DH corner cut 442.DG minor matters
443.DH minor matters 45. the 4th feeding network 451. the 13 feed section
452. the 14 feed section 453. the 15 feed section 454. the 17 little band impedance transformation line
455. the 18 little band impedance transformation line 456. the 19 little band impedance transformation line 457. the 20 little band impedance transformation line
46. the 4th little band allotment minor matters 461.DI minor matters 462.DJ minor matters
463.DK minor matters 464.DL corner cut 5. apex drive network
51. the first feed section 52. the second feed section 53. the 3rd feed section
54. feed input 501. first little band impedance transformation line 502. second little band impedance transformation line
503. the 3rd little band impedance transformation line 504. the 4th little band impedance transformation line 10. substrate
11. concyclic boost line 111. the first concyclic boost line 112. the second concyclic boost line
113. the 3rd concyclic boost line 114. the 4th concyclic boost line ?
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
16 unit microstrip array antennas of minute rotating feed such as a kind of power of the present invention, this Unit 16 microstrip antenna array is used little band allotment minor matters, realize power five equilibrium, two order rotating feed structure of four antenna array elements by the apex drive network, can make whole antenna (i.e. 16 unit microstrip array antennas) and antenna array element have identical or better impedance and circular polarization characteristics, adopt the two order of power five equilibrium rotating feed technology can eliminate not mating of impedance, greatly improve the circular polarization performance.It is equivalent to one " water pump ", and the water of lower is extracted into eminence, if want that the place that is extracted into is very high, can place a plurality of such " water pumps " in the middle of this.Two order feed structures can so that the feeder line in the whole antenna greatly simplified; Single radiant body among the present invention adopts square corner cut patch design mode, is easy to processing; Adopt L-type feeder line coupling minor matters between individual antenna and the feeding network, can form easily large array antenna, reduced the complexity of feeding network, so that array simply is easy to realization, also reduced difficulty of processing simultaneously; Adopt the round and smooth microstrip line of layout to reduce reflection loss between feeding network and the feeding network, and adopt the more piece impedance transformer so that impedance transformation more level and smooth.This antenna array structure is compact, and symmetric form is good, is easy to be extended to large-scale array, has a good application prospect in communication system.
Shown in Fig. 1, Figure 1A, 16 unit microstrip array antennas of minute rotating feed such as power of the present invention, this array antenna includes the first antenna array element 1, the second antenna array element 2, third antenna array element 3, the 4th antenna array element 4 and apex drive network 5;
Wherein, the first antenna array element 1, the second antenna array element 2, third antenna array element 3 are identical with the structure of the 4th antenna array element 4;
The first antenna array element 1, the second antenna array element 2, third antenna array element 3 and the 4th antenna array element 4 according to clockwise direction be arranged in apex drive network 5 around.
In the present invention, the first antenna array element 1, the second antenna array element 2, third antenna array element 3, the 4th antenna array element 4 and apex drive network 5 are to cover the copper configuration at substrate 10 and obtain by covering copper technology.
In the present invention, the Material Processing that substrate 10 is selected is the FR-4 material, or routine is used for the pcb board material that processing circuit board is used.
The longitudinal pitch of the first antenna array element 1 and the second antenna array element 2 is designated as d 1-2
The second antenna array element 2 is designated as d with the axial spacing of third antenna array element 3 2-3
The longitudinal pitch of third antenna array element 3 and the 4th antenna array element 4 is designated as d 3-4
The axial spacing of the 4th antenna array element 4 and the first antenna array element 1 is designated as d 4-1
In order to optimize the directional diagram of 16 unit microstrip array antennas, then have λ gExpression substrate 10 is selected the wavelength of rapidoprint.
In the present invention, the longitudinal center line of substrate 10 and longitudinal centre line meet at central point O, and this central point O also is the feeding network center of circle of apex drive network 5.
Shown in Figure 1A, each antenna array element includes four antenna radiators, an antenna feeding network and little band coupling minor matters, described four antenna radiators according to clockwise direction be arranged in antenna feeding network around, the stem of antenna feeding network connects an end of little band coupling minor matters, and the other end of little band coupling minor matters is connected with little end with the impedance transformation line of apex drive network 5.
In order to describe the configuration of each antenna array element in detail, the below will carry out respectively the explanation of antenna array element.
(1) the apex drive network 5
Shown in Fig. 1, Figure 1A, Fig. 2 and Fig. 2 A, apex drive network 5 is provided with feed input 54, the first feed section 51, the second feed section 52, the 3rd feed section 53, first little band impedance transformation line 501, second little band impedance transformation line the 502, the 3rd little band impedance transformation line the 503 and the 4th little band impedance transformation line 504.The stem of apex drive network 5 is feeding network input 54; The stem of feeding network input 54 and the first feed section 51 is provided with first little band impedance transformation line 501; The joint of the first feed section 51 and the second feed section 52 is provided with second little band impedance transformation line 502; The joint of the second feed section 52 and the 3rd feed section 53 is provided with the 3rd little band impedance transformation line 503; The afterbody of the 3rd feed section 53 is provided with the 4th little band impedance transformation line 504.
First little other end with impedance transformation line 501 is connected with the AK minor matters 163 of first little band coupling minor matters 16 of the first antenna array element 1;
Second little other end with impedance transformation line 502 is connected with the BK minor matters 263 of second little band coupling minor matters 26 of the second antenna array element 2;
The 3rd little other end with impedance transformation line 503 is connected with the CK minor matters 363 of the 3rd little band coupling minor matters 36 of third antenna array element 3;
The 4th little other end with impedance transformation line 504 is connected with the DK minor matters 463 of the 4th little band coupling minor matters 46 of the 4th antenna array element 4.
Feed input 54, the first feed section 51, the second feed section 52 and the 3rd feed section 53 are sequentially to arrange according to the signal input and output flow direction to form 3/4 annular, and the center of circle O of apex drive network 5 overlaps with the central point O of substrate 10.
Shown in Fig. 2 A, the overall diameter of apex drive network 5 is designated as R, and the interior diameter of the first feed section 51 is designated as R 51, the interior diameter of the second feed section 52 is designated as R 52, the interior diameter of the 3rd feed section 53 is designated as R 53, it is DR that the copper width (micro belt line width that also claims the first feed section 51) that covers of the first feed section 51 is then arranged 51=R-R 51, the copper width that covers of the second feed section 52 is DR 52=R-R 52, the copper width that covers of the 3rd feed section 53 is DR 53=R-R 53, R 51=R 52+ 0.1mm, R 52=R 53+ 0.2mm.
The wide E that is designated as of feed input 54 54(also being to cover the copper width), E 54Size and the characteristic impedance value of feed input 54 The pass that exists is Z C - E 54 = E 54 h > 1 377 ϵ r { E 54 h + 0.883 + 0.165 ϵ r - 1 ϵ r 2 + ϵ r + 1 πϵ r [ ln ( E 54 h + 1.88 ) + 0.758 ] } - 1 E 54 h ≤ 1 120 2 ( ϵ r + 1 ) [ ln 8 h E 54 + 1 32 ( E 54 h ) 2 - ϵ r - 1 ϵ r + 1 ( 0.2258 + 0.1208 ϵ r ) ] , E 54Be the micro belt line width of feed input 54, ε rBe the dielectric constant of dielectric-slab 10 selected materials, h is the thickness of slab of dielectric-slab 10 selected materials, π value 3.14.
First little configuration corner cut with impedance transformation line 501 is designated as β 501, first little copper width that covers with impedance transformation line 501 is designated as U 501
Second little configuration corner cut with impedance transformation line 502 is designated as β 502, second little copper width that covers with impedance transformation line 502 is designated as U 502
The 3rd little configuration corner cut with impedance transformation line 503 is designated as β 503, the 3rd little copper width that covers with impedance transformation line 503 is designated as U 503
The 4th little configuration corner cut with impedance transformation line 504 is designated as β 504, the 4th little copper width that covers with impedance transformation line 504 is designated as U 504Then have:
β 501=β 502=β 503=β 504=60～90 degree; U 501=U 502=U 503=U 504=DR 53
In the present invention, first in the feeding network 5 littlely littlely littlely overlaps (as shown in Figure 1) with impedance transformation line 503 and the 4th little tie point with the little band allotment minor matters in impedance transformation line 504 and four antenna array elements (first little band allotment minor matters 16, second little band allotment minor matters 26, the 3rd little band allotment minor matters 36, the 4th little band allotment minor matters 46) with concyclic boost line 11 with impedance transformation line 502, the 3rd with impedance transformation line 501, second;
In the first feeding network 15 the 5th littlely overlaps (as shown in Figure 1) with impedance transformation line 154, the 6th little tie point with impedance transformation line 155, the 7th little little band allotment minor matters with impedance transformation line 156 and the 8th little four radiant bodies with impedance transformation line 157 and the first antenna array element 1 with the first concyclic boost line 111;
In the second feeding network 25 the 9th littlely littlely overlaps (as shown in Figure 1) with impedance transformation line the 256 and the 12 little tie point with the little band allotment of impedance transformation line 257 and four radiant bodies of the second antenna array element 2 minor matters with the second concyclic boost line 112 with impedance transformation line the 255, the 11 is little with impedance transformation line 254, the tenth;
In the 3rd feeding network 35 the 13 littlely with three concyclic boost line 113 overlaps (as shown in Figure 1) with impedance transformation line the 355, the 15 is little with impedance transformation line the 356 and the 16 little tie point with the little band allotment of impedance transformation line 357 and four antenna array elements of third antenna array element 3 minor matters with impedance transformation line the 354, the 14 is little;
In the 4th feeding network 45 the 17 littlely overlaps (as shown in Figure 1) with impedance transformation line the 456 and the 20 little tie point with the little band allotment of impedance transformation line 457 and four antenna array elements of the 4th antenna array element 4 minor matters with the 4th concyclic boost line 114 with impedance transformation line the 455, the 19 is little with impedance transformation line the 454, the 18 is little.
(2) first antenna array elements 1
Shown in Fig. 1, Figure 1A, Fig. 3, Fig. 3 A, Fig. 3 B, the first antenna array element 1 is made of the first radiant body 11, the second radiant body 12, the 3rd radiant body 13, the 4th radiant body 14, the first feeding network 15 and first little band coupling minor matters 16.
Wherein, the first radiant body 11, the second radiant body 12, the 3rd radiant body 13 are identical with the 4th radiant body 14 structures.
The first radiant body 11, the second radiant body 12, the 3rd radiant body 13 and the 4th radiant body 14 according to clockwise direction be arranged in the first feeding network 15 around.
Referring to shown in Figure 3, the first radiant body 11 is provided with the first square corner cut paster 111, AA minor matters 112 and AB minor matters 113; Cut the identical AA corner cut 111a of structure and AB corner cut 111b on the diagonal of the described first square corner cut paster 111; One end of AA minor matters 112 is connected with the base of the first square corner cut paster 111, and the other end of AA minor matters 112 is connected with an end of AB minor matters 113, and the other end of AB minor matters 113 is connected with the 5th little band impedance transformation line 154 of the first feeding network 15.In the present invention, the other end of AA minor matters 112 is connected the connection of employing corner cut with an end of AB minor matters 113.
Referring to shown in Figure 3, the second radiant body 12 is provided with the second square corner cut paster 121, AC minor matters 122 and AD minor matters 123; Cut the identical AC corner cut 121a of structure and AD corner cut 121b on the diagonal of the described second square corner cut paster 121; One end of AC minor matters 122 is connected with the base of the second square corner cut paster 121, and the other end of AC minor matters 122 is connected with an end of AD minor matters 123, and the other end of AD minor matters 123 is connected with the 6th little band impedance transformation line 155 of the first feeding network 15.In the present invention, the other end of AC minor matters 122 is connected the connection of employing corner cut with an end of AD minor matters 123.
Referring to shown in Figure 3, the 3rd radiant body 13 is provided with third party's shape corner cut paster 131, AE minor matters 122 and AF minor matters 123; Cut the identical AE corner cut 131a of structure and AF corner cut 131b on the diagonal of described third party's shape corner cut paster 131; One end of AE minor matters 132 is connected with the base of third party's shape corner cut paster 131, and the other end of AE minor matters 132 is connected with an end of AF minor matters 133, and the other end of AF minor matters 133 is connected with the 7th little band impedance transformation line 156 of the first feeding network 15.In the present invention, the other end of AE minor matters 132 is connected the connection of employing corner cut with an end of AF minor matters 133.
Referring to shown in Figure 3, the 4th radiant body 14 is provided with square corner cut paster 141, AG minor matters 142 and AH minor matters 143; Cut the identical AG corner cut 141a of structure and AH corner cut 141b on the diagonal of described square corner cut paster 141; One end of AG minor matters 142 is connected with the base of square corner cut paster 141, and the other end of AG minor matters 142 is connected with an end of AH minor matters 143, and the other end of AH minor matters 143 is connected with the 8th little band impedance transformation line 157 of the first feeding network 15.In the present invention, the other end of AG minor matters 142 is connected the connection of employing corner cut with an end of AH minor matters 143.
Referring to shown in Figure 3, the first feeding network 15 includes the 4th feed section 151, the 5th feed section 152, the 6th feed section 153; The stem of the 4th feed section 151 is provided with the 5th little band impedance transformation line 154, the joint of the 4th feed section 151 and the 5th feed section 152 is provided with the 6th little band impedance transformation line 155, the afterbody that the joint of the 5th feed section 152 and the 6th feed section 153 is provided with the 7th little band impedance transformation line 156, the six feed sections 153 is provided with the 8th little band impedance transformation line 157.The 5th little other end with impedance transformation line 154 is connected with the other end of AB minor matters 113; The 6th little other end with impedance transformation line 155 is connected with the other end of AD minor matters 123; The 7th little other end with impedance transformation line 156 is connected with the other end of AF minor matters 133; The 8th little other end with impedance transformation line 157 is connected with the other end of AH minor matters 143.The stem of the 4th feed section 151 is connected with the AI minor matters 161 of first little band coupling minor matters 16.
Referring to shown in Figure 3, first little band coupling minor matters 16 are provided with AI minor matters 161, AJ minor matters 162 and AK minor matters 163, AI minor matters 161 1 ends are connected with AJ minor matters 162, the other end of AJ minor matters 162 is connected with AK minor matters 163 by AL corner cut 164, and the other end of AK minor matters 163 is connected with first little band impedance transformation line 501 of apex drive network 5.
Shown in Fig. 3 A, the length of side of the first square corner cut paster 111 is designated as a 111, the AA corner cut 111a of the first square corner cut paster 111 and AB corner cut 111b are isosceles right triangle, the right-angle side length of side is designated as a 111a, and right-angle side length of side a 111aSize satisfies
Figure BDA00003227399500084
The length of side a of the first square corner cut paster 111 111Size satisfies
Figure BDA00003227399500081
f rBe the resonance frequency of radiant body, c is the light velocity, ε rDielectric constant for substrate 10 selected materials.
Shown in Fig. 3 A, the length of AA minor matters 112 is designated as b 112, the wide c that is designated as 112, the length of AB minor matters 113 is designated as b 113, the wide c that is designated as 113, AA minor matters 112 are isosceles right triangle with the corner cut of the joint of AB minor matters 113, the right-angle side length of side is designated as d 111, then have satisfied the closing of structural design size to be: b 113+ 0.1mm=b 112, d 111 = b 112 5 ~ b 112 6 , c 112＝c 113＝d 111＝a 111a， c 112 = a 111 6 ~ a 111 10 .
Shown in Fig. 3 B, the length of the AK minor matters 163 on first little band allotment minor matters 16 is designated as b 163, width is designated as c 163The width of AI minor matters 611 is designated as c 161AL corner cut 164 is isosceles right triangle, and the right-angle side length of side is designated as a 164The first pass of little band allotment minor matters 16 on the structural design size is: b 163=2b 112, c 161=c 163=c 112=c 113=d 111=a 111a=a 164
(3) second antenna array elements 2
Referring to Fig. 1, Figure 1A, shown in Figure 4, the second antenna array element 2 is made of the 5th radiant body 21, the 6th radiant body 22, the 7th radiant body 23, the 8th radiant body 24, the second feeding network 25 and second little band coupling minor matters 26.
Wherein, the 5th radiant body 21, the 6th radiant body 22, the 7th radiant body 23 are identical with the 8th radiant body 24 structures.
The 5th radiant body 21, the 6th radiant body 22, the 7th radiant body 23 and the 8th radiant body 24 according to clockwise direction be arranged in the second feeding network 25 around.
Referring to shown in Figure 4, the 5th radiant body 21 is provided with the 5th square corner cut paster 211, BA minor matters 212 and BB minor matters 213; Cut the identical BA corner cut 211a of structure and BB corner cut 211b on the diagonal of the described the 5th square corner cut paster 211; One end of BA minor matters 212 is connected with the base of the 5th square corner cut paster 211, and the other end of BA minor matters 212 is connected with an end of BB minor matters 213, and the other end of BB minor matters 213 is connected with the 9th little band impedance transformation line 254 of the second feeding network 25.In the present invention, the other end of BA minor matters 212 is connected the connection of employing corner cut with an end of BB minor matters 213.
Referring to shown in Figure 4, the 6th radiant body 22 is provided with hexagon corner cut paster 221, BC minor matters 222 and BD minor matters 223; Cut the identical BC corner cut 221a of structure and BD corner cut 221b on the diagonal of described hexagon corner cut paster 221; One end of BC minor matters 222 is connected with the base of hexagon corner cut paster 221, and the other end of BC minor matters 222 is connected with an end of BD minor matters 223, and the other end of BD minor matters 223 is connected with the tenth little band impedance transformation line 255 of the second feeding network 25.In the present invention, the other end of BC minor matters 222 is connected the connection of employing corner cut with an end of BD minor matters 223.
Referring to shown in Figure 4, the 7th radiant body 23 is provided with the 7th square corner cut paster 231, BE minor matters 222 and BF minor matters 223; Cut the identical BE corner cut 231a of structure and BF corner cut 231b on the diagonal of the described the 7th square corner cut paster 231; One end of BE minor matters 232 is connected with the base of the 7th square corner cut paster 231, and the other end of BE minor matters 232 is connected with an end of BF minor matters 233, and the other end of BF minor matters 233 is connected with the 11 little band impedance transformation line 256 of the second feeding network 25.In the present invention, the other end of BE minor matters 232 is connected the connection of employing corner cut with an end of BF minor matters 233.
Referring to shown in Figure 4, the 8th radiant body 24 is provided with all directions shape corner cut paster 241, BG minor matters 242 and BH minor matters 243; Cut the identical BG corner cut 241a of structure and BH corner cut 241b on the diagonal of described all directions shape corner cut paster 241; One end of BG minor matters 242 is connected with the base of all directions shape corner cut paster 241, and the other end of BG minor matters 242 is connected with an end of BH minor matters 243, and the other end of BH minor matters 243 is connected with the 12 little band impedance transformation line 257 of the second feeding network 25.In the present invention, the other end of BG minor matters 242 is connected the connection of employing corner cut with an end of BH minor matters 243.
Referring to shown in Figure 4, the second feeding network 25 includes the 7th feed section 251, the 8th feed section 252, the 9th feed section 253; The stem of the 7th feed section 251 is provided with the 9th little band impedance transformation line 254, the joint of the 7th feed section 251 and the 8th feed section 252 is provided with the tenth little band impedance transformation line 255, the afterbody that the joint of the 8th feed section 252 and the 9th feed section 253 is provided with the 11 little band impedance transformation line 256, the nine feed sections 253 is provided with the 12 little band impedance transformation line 257.The 9th little other end with impedance transformation line 254 is connected with the other end of BB minor matters 213; The tenth little other end with impedance transformation line 255 is connected with the other end of BD minor matters 223; The 11 little other end with impedance transformation line 256 is connected with the other end of BF minor matters 233; The 12 little other end with impedance transformation line 257 is connected with the other end of BH minor matters 243.The stem of the 7th feed section 251 is connected with the BI minor matters 261 of second little band coupling minor matters 26.
Referring to shown in Figure 4, second little band coupling minor matters 26 are provided with BI minor matters 261, BJ minor matters 262 and BK minor matters 263, BI minor matters 261 1 ends are connected with BJ minor matters 262, the other end of BJ minor matters 262 is connected with BK minor matters 263 by BL corner cut 264, and the other end of BK minor matters 263 is connected with second little band impedance transformation line 502 of apex drive network 5.
In the present invention, the physical dimension of the second antenna array element 2 is identical with the physical dimension of the first antenna array element 1.
(4) the third antenna array element 3
Referring to Fig. 1, Figure 1A, shown in Figure 5, third antenna array element 3 is made of the 9th radiant body 31, the tenth radiant body 32, the 11 radiant body 33, the 12 radiant body 34, the 3rd feeding network 35 and the 3rd little band coupling minor matters 36.
Wherein, the 9th radiant body 31, the tenth radiant body 32, the 11 radiant body 33 are identical with the 12 radiant body 34 structures.
The 9th radiant body 31, the tenth radiant body 32, the 11 radiant body 33 and the 12 radiant body 34 according to clockwise direction be arranged in the 3rd feeding network 35 around.
Referring to shown in Figure 5, the 9th radiant body 31 is provided with the 9th square corner cut paster 311, CA minor matters 312 and CB minor matters 313; Cut the identical CA corner cut 311a of structure and CB corner cut 311b on the diagonal of the described the 9th square corner cut paster 311; One end of CA minor matters 312 is connected with the base of the 9th square corner cut paster 311, and the other end of CA minor matters 312 is connected with an end of CB minor matters 313, and the other end of CB minor matters 313 is connected with the 13 little band impedance transformation line 354 of the 3rd feeding network 35.In the present invention, the other end of CA minor matters 312 is connected the connection of employing corner cut with an end of CB minor matters 313.
Referring to shown in Figure 5, the tenth radiant body 32 is provided with the tenth square corner cut paster 321, CC minor matters 322 and CD minor matters 323; Cut the identical CC corner cut 321a of structure and CD corner cut 321b on the diagonal of the described the tenth square corner cut paster 321; One end of CC minor matters 322 is connected with the base of the tenth square corner cut paster 321, and the other end of CC minor matters 322 is connected with an end of CD minor matters 323, and the other end of CD minor matters 323 is connected with the 14 little band impedance transformation line 355 of the 3rd feeding network 35.In the present invention, the other end of CC minor matters 322 is connected the connection of employing corner cut with an end of CD minor matters 323.
Referring to shown in Figure 5, the 11 radiant body 33 is provided with the 11 square corner cut paster 331, CE minor matters 322 and CF minor matters 323; Cut the identical CE corner cut 331a of structure and CF corner cut 331b on the diagonal of the described the 11 square corner cut paster 331; One end of CE minor matters 332 is connected with the base of the 11 square corner cut paster 331, and the other end of CE minor matters 332 is connected with an end of CF minor matters 333, and the other end of CF minor matters 333 is connected with the 15 little band impedance transformation line 356 of the 3rd feeding network 35.In the present invention, the other end of CE minor matters 332 is connected the connection of employing corner cut with an end of CF minor matters 333.
Referring to shown in Figure 5, the 12 radiant body 34 is provided with the 12 square corner cut paster 341, CG minor matters 342 and CH minor matters 343; Cut the identical CG corner cut 341a of structure and CH corner cut 341b on the diagonal of the described the 12 square corner cut paster 341; One end of CG minor matters 342 is connected with the base of the 12 square corner cut paster 341, and the other end of CG minor matters 342 is connected with an end of CH minor matters 343, and the other end of CH minor matters 343 is connected with the 16 little band impedance transformation line 357 of the 3rd feeding network 35.In the present invention, the other end of CG minor matters 342 is connected the connection of employing corner cut with an end of CH minor matters 343.
Referring to shown in Figure 5, the 3rd feeding network 35 includes the tenth feed section 351, the 11 feed section 352, the 12 feed section 353; The stem of the tenth feed section 351 is provided with the 13 little band impedance transformation line 354, the joint of the tenth feed section 351 and the 11 feed section 352 is provided with the 14 little band impedance transformation line 355, the afterbody that the joint of the 11 feed section 352 and the 12 feed section 353 is provided with the 15 little band impedance transformation line 356, the 12 feed sections 353 is provided with the 16 little band impedance transformation line 357.The 13 little other end with impedance transformation line 354 is connected with the other end of CB minor matters 313; The 14 little other end with impedance transformation line 355 is connected with the other end of CD minor matters 323; The 15 little other end with impedance transformation line 356 is connected with the other end of CF minor matters 333; The 16 little other end with impedance transformation line 357 is connected with the other end of CH minor matters 343.The stem of the tenth feed section 351 is connected with the CI minor matters 631 of the 3rd little band coupling minor matters 63.
Referring to shown in Figure 5, the 3rd little band coupling minor matters 36 are provided with CI minor matters 361, CJ minor matters 362 and CK minor matters 363, CI minor matters 361 1 ends are connected with CJ minor matters 362, the other end of CJ minor matters 362 is connected with CK minor matters 363 by CL corner cut 364, and the other end of CK minor matters 363 is connected with the 3rd little band impedance transformation line 503 of apex drive network 5.
In the present invention, the physical dimension of third antenna array element 3 is identical with the physical dimension of the first antenna array element 1.
(5) the 4th antenna array elements 4
Referring to Fig. 1, Figure 1A, shown in Figure 6, the 4th antenna array element 4 is made of the 13 radiant body 41, the 14 radiant body 42, the 15 radiant body 43, the 16 radiant body 44, the 4th feeding network 45 and the 4th little band coupling minor matters 64.
Wherein, the 13 radiant body 41, the 14 radiant body 42, the 15 radiant body 43 are identical with the 16 radiant body 44 structures.
The 13 radiant body 41, the 14 radiant body 42, the 15 radiant body 43 and the 16 radiant body 44 according to clockwise direction be arranged in the 4th feeding network 45 around.
Referring to shown in Figure 6, the 13 radiant body 41 is provided with the 13 square corner cut paster 411, DA minor matters 412 and DB minor matters 413; Cut the identical DA corner cut 411a of structure and DB corner cut 411b on the diagonal of the described the 13 square corner cut paster 411; One end of DA minor matters 412 is connected with the base of the 13 square corner cut paster 411, and the other end of DA minor matters 412 is connected with an end of DB minor matters 413, and the other end of DB minor matters 413 is connected with the 17 little band impedance transformation line 454 of the 4th feeding network 45.In the present invention, the other end of DA minor matters 412 is connected the connection of employing corner cut with an end of DB minor matters 413.
Referring to shown in Figure 6, the 14 radiant body 42 is provided with the tenth square corner cut paster 421, DC minor matters 422 and DD minor matters 423; Cut the identical DC corner cut 421a of structure and DD corner cut 421b on the diagonal of described the tenth square corner cut paster 421; One end of DC minor matters 422 is connected with the base of the tenth square corner cut paster 421, and the other end of DC minor matters 422 is connected with an end of DD minor matters 423, and the other end of DD minor matters 423 is connected with the 18 little band impedance transformation line 455 of the 4th feeding network 45.In the present invention, the other end of DC minor matters 422 is connected the connection of employing corner cut with an end of DD minor matters 423.
Referring to shown in Figure 6, the 15 radiant body 43 is provided with the 15 square corner cut paster 431, DE minor matters 422 and DF minor matters 423; Cut the identical DE corner cut 431a of structure and DF corner cut 431b on the diagonal of the described the 15 square corner cut paster 431; One end of DE minor matters 432 is connected with the base of the 15 square corner cut paster 431, and the other end of DE minor matters 432 is connected with an end of DF minor matters 433, and the other end of DF minor matters 433 is connected with the 19 little band impedance transformation line 456 of the 4th feeding network 45.In the present invention, the other end of DE minor matters 432 is connected the connection of employing corner cut with an end of DF minor matters 433.
Referring to shown in Figure 6, the 16 radiant body 44 is provided with the tenth hexagon corner cut paster 441, DG minor matters 442 and DH minor matters 443; Cut the identical DG corner cut 441a of structure and DH corner cut 441b on the diagonal of described the tenth hexagon corner cut paster 441; One end of DG minor matters 442 is connected with the base of the tenth hexagon corner cut paster 441, and the other end of DG minor matters 442 is connected with an end of DH minor matters 443, and the other end of DH minor matters 443 is connected with the 20 little band impedance transformation line 457 of the 4th feeding network 45.In the present invention, the other end of DG minor matters 442 is connected the connection of employing corner cut with an end of DH minor matters 443.
Referring to shown in Figure 6, the 4th feeding network 45 includes the 13 feed section 451, the 14 feed section 452, the 15 feed section 453; The stem of the 13 feed section 451 is provided with the 17 little band impedance transformation line 454, the joint of the 13 feed section 451 and the 14 feed section 452 is provided with the 18 little band impedance transformation line 455, the afterbody that the joint of the 14 feed section 452 and the 15 feed section 453 is provided with the 19 little band impedance transformation line 456, the 15 feed sections 453 is provided with the 20 little band impedance transformation line 457.The 17 little other end with impedance transformation line 454 is connected with the other end of DB minor matters 413; The 18 little other end with impedance transformation line 455 is connected with the other end of DD minor matters 423; The 19 little other end with impedance transformation line 456 is connected with the other end of DF minor matters 433; The 20 little other end with impedance transformation line 457 is connected with the other end of DH minor matters 443.The stem of the 13 feed section 451 is connected with the DI minor matters 641 of the 4th little band coupling minor matters 64.
Referring to shown in Figure 6, the 4th little band coupling minor matters 46 are provided with DI minor matters 461, DJ minor matters 462 and DK minor matters 463, DI minor matters 461 1 ends are connected with DJ minor matters 462, the other end of DJ minor matters 462 is connected with DK minor matters 463 by DL corner cut 464, and the other end of DK minor matters 463 is connected with the 4th little band impedance transformation line 504 of apex drive network 5.
In the present invention, the physical dimension of the 4th antenna array element 4 is identical with the physical dimension of the first antenna array element 1.
In the present invention, by two order feeding networks, so that the antenna array axial ratio of the present invention's design is at resonance frequency f rIn, and less than 1.0dB, satisfy GJB1035-90 satellite antenna general specification satellite antenna checkout area in-field axial ratio less than 0.5～1.0dB requirement; Set a by the physical dimension formula 111And a 111aLength so that radiant body voltage standing wave ratio in resonance frequency satisfies voltage standing wave ratio requirement in the GJB1035-90 satellite antenna general specification electric property less than 2.0.
(7) substrate 10
Referring to shown in Figure 1, the profile of dielectric-slab 10 is square plate, and the length of side is designated as WG.WG=4a 111+ 0.6 λ g, λ gBe the wavelength in the substrate material,
Figure BDA00003227399500121
λ is free space wavelength, ε rBe the dielectric constant of dielectric-slab 10 selected materials, h is the thickness of slab of dielectric-slab 10 selected materials, a 111The length of side for the square corner cut paster of radiant body.Among the present invention, the RT/duriod5880 substrate that the material selection U.S. Rogers company of dielectric-slab 10 produces, its DIELECTRIC CONSTANT ε rBe 2.2, plate thickness h is 0.254mm.
In the two order of the rotation feeding network of the present invention's design, the first antenna array element 1, the second antenna array element 2, third antenna array element 3 and the 4th antenna array element 4 in order rotation mode be installed in feeding network 5 around, install in little band allotment minor matters employing order 90-degree rotation orientation of the antenna array element that four structures are identical, guaranteed that the phase place between four antenna array elements differs 90 degree successively, simultaneously:
Four radiant bodies 11,12,13,14 in the first antenna array element 1 in order rotation mode be installed in the first feeding network 15 around, install in little band allotment minor matters employing order 90-degree rotation orientation of the radiant body that four structures are identical, has guaranteed that the phase place between first day linear array 1 radiant body differs 90 degree successively;
Four radiant bodies 21,22,23,24 in the second antenna array element 2 in order rotation mode be installed in the second feeding network 25 around, install in little band allotment minor matters employing order 90-degree rotation orientation of the radiant body that four structures are identical, has guaranteed that the phase place between second day linear array 2 antenna elements differs 90 degree successively;
Four antenna elements 31,32,33,34 in the third antenna array element 3 in order rotation mode be installed in the 3rd feeding network 35 around, install in little band allotment minor matters employing order 90-degree rotation orientation of the antenna element that four structures are identical, has guaranteed that the phase place between third antenna battle array 3 antenna elements differs 90 degree successively;
Four antenna elements 41,42,43,44 in the 4th antenna array element 4 in order rotation mode be installed in the 4th feeding network 45 around, install in little band allotment minor matters employing order 90-degree rotation orientation of the antenna element that four structures are identical, has guaranteed that the phase place between the 4th antenna array 4 antenna elements differs 90 degree successively;
The antenna array of the present invention's design has improved the axial ratio width of array antenna significantly, and the circular polarization purity of array antenna, can be easy to be extended to larger array.
16 unit microstrip array antenna Adoption Network analyzers of minute rotating feed such as power of the present invention carry out the measurement of antenna S parameter, adopt the gain of BJ320 waveguide as canonical reference, return loss, axial ratio and the gain curve of 16 yuan of aerial arrays of this that records in microwave dark room shows respectively in Fig. 7 A, Fig. 7 B and Fig. 7 C with frequency change trend.As can be seen from the figure, in 28GHz～31GHz scope, all less than-20dB, axial ratio is lower than 1dB to return loss, has obtained good bandwidth and circular polarization characteristics, and gain has also reached 19dBi.The present invention's design utilizes order rotating feed technology twice, 16 element array that the impedance bandwidth of 16 yuan of aerial arrays of the modified model of designing two order rotating feed and axial ratio bandwidth all significantly are better than 4 yuan of subarrays and upper joint, antenna performance is good, and further research finds that directional diagram has symmetry, with frequency change keep fine.
16 unit microstrip array antennas of minute rotating feed such as power of the present invention, this 16 element array spatially carries out twice order rotation altogether, for the first time for chip unit form 4 unit submatrixs the time the order rotation, be for the second time that the again order of 4 unit submatrixs when forming 16 element array as the unit rotated.16 identical antenna elements of structure are integrated on the same medium substrate with 5 identical feeding networks of structure.This antenna structure is compact, is easy to be extended to the antenna of larger array, has good application prospect.

Claims (8)

1. 16 unit microstrip array antennas of minute rotating feed such as a power, it is characterized in that: this array antenna includes the first antenna array element (1), the second antenna array element (2), third antenna array element (3), the 4th antenna array element (4) and apex drive network (5);
Wherein, the first antenna array element (1), the second antenna array element (2), third antenna array element (3) are identical with the structure of the 4th antenna array element (4);
The first antenna array element (1), the second antenna array element (2), third antenna array element (3) and the 4th antenna array element (4) according to clockwise direction be arranged in apex drive network (5) around;
The first antenna array element (1) is designated as d with the longitudinal pitch of the second antenna array element (2) 1-2The second antenna array element (2) is designated as d with the axial spacing of third antenna array element (3) 2-3Third antenna array element (3) is designated as d with the longitudinal pitch of the 4th antenna array element (4) 3-4The 4th antenna array element (4) is designated as d with the axial spacing of the first antenna array element (1) 4-1Then have
Figure FDA00003227399400011
λ gExpression substrate (10) is selected the wavelength of rapidoprint;
The first antenna array element (1), the second antenna array element (2), third antenna array element (3), the 4th antenna array element (4) and apex drive network (5) are to cover the copper configuration at substrate (10) to obtain.
2. 16 unit microstrip array antennas of minute rotating feed such as power according to claim 1, it is characterized in that: apex drive network 5 is provided with feed input 54, the first feed section 51, the second feed section 52, the 3rd feed section 53, first little band impedance transformation line 501, second little band impedance transformation line the 502, the 3rd little band impedance transformation line the 503 and the 4th little band impedance transformation line 504.The stem of apex drive network 5 is feeding network input 54; The stem of feeding network input 54 and the first feed section 51 is provided with first little band impedance transformation line 501; The joint of the first feed section 51 and the second feed section 52 is provided with second little band impedance transformation line 502; The joint of the second feed section 52 and the 3rd feed section 53 is provided with the 3rd little band impedance transformation line 503; The afterbody of the 3rd feed section 53 is provided with the 4th little band impedance transformation line 504;
First little other end with impedance transformation line 501 is connected with the AK minor matters 163 of first little band coupling minor matters 16 of the first antenna array element 1;
Second little other end with impedance transformation line 502 is connected with the BK minor matters 263 of second little band coupling minor matters 26 of the second antenna array element 2;
The 3rd little other end with impedance transformation line 503 is connected with the CK minor matters 363 of the 3rd little band coupling minor matters 36 of third antenna array element 3;
The 4th little other end with impedance transformation line 504 is connected with the DK minor matters 463 of the 4th little band coupling minor matters 46 of the 4th antenna array element 4.
3. 16 unit microstrip array antennas of minute rotating feed such as power according to claim 1, it is characterized in that: the first antenna array element 1 is made of the first radiant body 11, the second radiant body 12, the 3rd radiant body 13, the 4th radiant body 14, the first feeding network 15 and first little band coupling minor matters 16;
Wherein, the first radiant body 11, the second radiant body 12, the 3rd radiant body 13 are identical with the 4th radiant body 14 structures.
The first radiant body 11, the second radiant body 12, the 3rd radiant body 13 and the 4th radiant body 14 according to clockwise direction be arranged in the first feeding network 15 around.
The first radiant body 11 is provided with the first square corner cut paster 111, AA minor matters 112 and AB minor matters 113; Cut the identical AA corner cut 111a of structure and AB corner cut 111b on the diagonal of the described first square corner cut paster 111; One end of AA minor matters 112 is connected with the base of the first square corner cut paster 111, and the other end of AA minor matters 112 is connected with an end of AB minor matters 113, and the other end of AB minor matters 113 is connected with the 5th little band impedance transformation line 154 of the first feeding network 15.In the present invention, the other end of AA minor matters 112 is connected the connection of employing corner cut with an end of AB minor matters 113.
The second radiant body 12 is provided with the second square corner cut paster 121, AC minor matters 122 and AD minor matters 123; Cut the identical AC corner cut 121a of structure and AD corner cut 121b on the diagonal of the described second square corner cut paster 121; One end of AC minor matters 122 is connected with the base of the second square corner cut paster 121, and the other end of AC minor matters 122 is connected with an end of AD minor matters 123, and the other end of AD minor matters 123 is connected with the 6th little band impedance transformation line 155 of the first feeding network 15.In the present invention, the other end of AC minor matters 122 is connected the connection of employing corner cut with an end of AD minor matters 123.
The 3rd radiant body 13 is provided with third party's shape corner cut paster 131, AE minor matters 122 and AF minor matters 123; Cut the identical AE corner cut 131a of structure and AF corner cut 131b on the diagonal of described third party's shape corner cut paster 131; One end of AE minor matters 132 is connected with the base of third party's shape corner cut paster 131, and the other end of AE minor matters 132 is connected with an end of AF minor matters 133, and the other end of AF minor matters 133 is connected with the 7th little band impedance transformation line 156 of the first feeding network 15.In the present invention, the other end of AE minor matters 132 is connected the connection of employing corner cut with an end of AF minor matters 133.
The 4th radiant body 14 is provided with square corner cut paster 141, AG minor matters 142 and AH minor matters 143; Cut the identical AG corner cut 141a of structure and AH corner cut 141b on the diagonal of described square corner cut paster 141; One end of AG minor matters 142 is connected with the base of square corner cut paster 141, and the other end of AG minor matters 142 is connected with an end of AH minor matters 143, and the other end of AH minor matters 143 is connected with the 8th little band impedance transformation line 157 of the first feeding network 15.In the present invention, the other end of AG minor matters 142 is connected the connection of employing corner cut with an end of AH minor matters 143.
The first feeding network 15 includes the 4th feed section 151, the 5th feed section 152, the 6th feed section 153; The stem of the 4th feed section 151 is provided with the 5th little band impedance transformation line 154, the joint of the 4th feed section 151 and the 5th feed section 152 is provided with the 6th little band impedance transformation line 155, the afterbody that the joint of the 5th feed section 152 and the 6th feed section 153 is provided with the 7th little band impedance transformation line 156, the six feed sections 153 is provided with the 8th little band impedance transformation line 157.The 5th little other end with impedance transformation line 154 is connected with the other end of AB minor matters 113; The 6th little other end with impedance transformation line 155 is connected with the other end of AD minor matters 123; The 7th little other end with impedance transformation line 156 is connected with the other end of AF minor matters 133; The 8th little other end with impedance transformation line 157 is connected with the other end of AH minor matters 143.The stem of the 4th feed section 151 is connected with the AI minor matters 161 of first little band coupling minor matters 16.
First little band coupling minor matters 16 are provided with AI minor matters 161, AJ minor matters 162 and AK minor matters 163, AI minor matters 161 1 ends are connected with AJ minor matters 162, the other end of AJ minor matters 162 is connected with AK minor matters 163 by AL corner cut 164, and the other end of AK minor matters 163 is connected with first little band impedance transformation line 501 of apex drive network 5.
4. 16 unit microstrip array antennas of minute rotating feed such as power according to claim 1, it is characterized in that: the second antenna array element 2 is made of the 5th radiant body 21, the 6th radiant body 22, the 7th radiant body 23, the 8th radiant body 24, the second feeding network 25 and second little band coupling minor matters 26;
Wherein, the 5th radiant body 21, the 6th radiant body 22, the 7th radiant body 23 are identical with the 8th radiant body 24 structures.
The 5th radiant body 21, the 6th radiant body 22, the 7th radiant body 23 and the 8th radiant body 24 according to clockwise direction be arranged in the second feeding network 25 around.
The 5th radiant body 21 is provided with the 5th square corner cut paster 211, BA minor matters 212 and BB minor matters 213; Cut the identical BA corner cut 211a of structure and BB corner cut 211b on the diagonal of the described the 5th square corner cut paster 211; One end of BA minor matters 212 is connected with the base of the 5th square corner cut paster 211, and the other end of BA minor matters 212 is connected with an end of BB minor matters 213, and the other end of BB minor matters 213 is connected with the 9th little band impedance transformation line 254 of the second feeding network 25.In the present invention, the other end of BA minor matters 212 is connected the connection of employing corner cut with an end of BB minor matters 213.
The 6th radiant body 22 is provided with hexagon corner cut paster 221, BC minor matters 222 and BD minor matters 223; Cut the identical BC corner cut 221a of structure and BD corner cut 221b on the diagonal of described hexagon corner cut paster 221; One end of BC minor matters 222 is connected with the base of hexagon corner cut paster 221, and the other end of BC minor matters 222 is connected with an end of BD minor matters 223, and the other end of BD minor matters 223 is connected with the tenth little band impedance transformation line 255 of the second feeding network 25.In the present invention, the other end of BC minor matters 222 is connected the connection of employing corner cut with an end of BD minor matters 223.
The 7th radiant body 23 is provided with the 7th square corner cut paster 231, BE minor matters 222 and BF minor matters 223; Cut the identical BE corner cut 231a of structure and BF corner cut 231b on the diagonal of the described the 7th square corner cut paster 231; One end of BE minor matters 232 is connected with the base of the 7th square corner cut paster 231, and the other end of BE minor matters 232 is connected with an end of BF minor matters 233, and the other end of BF minor matters 233 is connected with the 11 little band impedance transformation line 256 of the second feeding network 25.In the present invention, the other end of BE minor matters 232 is connected the connection of employing corner cut with an end of BF minor matters 233.
The 8th radiant body 24 is provided with all directions shape corner cut paster 241, BG minor matters 242 and BH minor matters 243; Cut the identical BG corner cut 241a of structure and BH corner cut 241b on the diagonal of described all directions shape corner cut paster 241; One end of BG minor matters 242 is connected with the base of all directions shape corner cut paster 241, and the other end of BG minor matters 242 is connected with an end of BH minor matters 243, and the other end of BH minor matters 243 is connected with the 12 little band impedance transformation line 257 of the second feeding network 25.In the present invention, the other end of BG minor matters 242 is connected the connection of employing corner cut with an end of BH minor matters 243.
The second feeding network 25 includes the 7th feed section 251, the 8th feed section 252, the 9th feed section 253; The stem of the 7th feed section 251 is provided with the 9th little band impedance transformation line 254, the joint of the 7th feed section 251 and the 8th feed section 252 is provided with the tenth little band impedance transformation line 255, the afterbody that the joint of the 8th feed section 252 and the 9th feed section 253 is provided with the 11 little band impedance transformation line 256, the nine feed sections 253 is provided with the 12 little band impedance transformation line 257.The 9th little other end with impedance transformation line 254 is connected with the other end of BB minor matters 213; The tenth little other end with impedance transformation line 255 is connected with the other end of BD minor matters 223; The 11 little other end with impedance transformation line 256 is connected with the other end of BF minor matters 233; The 12 little other end with impedance transformation line 257 is connected with the other end of BH minor matters 243.The stem of the 7th feed section 251 is connected with the BI minor matters 261 of second little band coupling minor matters 26.
Second little band coupling minor matters 26 are provided with BI minor matters 261, BJ minor matters 262 and BK minor matters 263, BI minor matters 261 1 ends are connected with BJ minor matters 262, the other end of BJ minor matters 262 is connected with BK minor matters 263 by BL corner cut 264, and the other end of BK minor matters 263 is connected with second little band impedance transformation line 502 of apex drive network 5.
5. 16 unit microstrip array antennas of minute rotating feed such as power according to claim 1, it is characterized in that: third antenna array element 3 is made of the 9th radiant body 31, the tenth radiant body 32, the 11 radiant body 33, the 12 radiant body 34, the 3rd feeding network 35 and the 3rd little band coupling minor matters 36;
Wherein, the 9th radiant body 31, the tenth radiant body 32, the 11 radiant body 33 are identical with the 12 radiant body 34 structures.
The 9th radiant body 31, the tenth radiant body 32, the 11 radiant body 33 and the 12 radiant body 34 according to clockwise direction be arranged in the 3rd feeding network 35 around.
The 9th radiant body 31 is provided with the 9th square corner cut paster 311, CA minor matters 312 and CB minor matters 313; Cut the identical CA corner cut 311a of structure and CB corner cut 311b on the diagonal of the described the 9th square corner cut paster 311; One end of CA minor matters 312 is connected with the base of the 9th square corner cut paster 311, and the other end of CA minor matters 312 is connected with an end of CB minor matters 313, and the other end of CB minor matters 313 is connected with the 13 little band impedance transformation line 354 of the 3rd feeding network 35.In the present invention, the other end of CA minor matters 312 is connected the connection of employing corner cut with an end of CB minor matters 313.
The tenth radiant body 32 is provided with the tenth square corner cut paster 321, CC minor matters 322 and CD minor matters 323; Cut the identical CC corner cut 321a of structure and CD corner cut 321b on the diagonal of the described the tenth square corner cut paster 321; One end of CC minor matters 322 is connected with the base of the tenth square corner cut paster 321, and the other end of CC minor matters 322 is connected with an end of CD minor matters 323, and the other end of CD minor matters 323 is connected with the 14 little band impedance transformation line 355 of the 3rd feeding network 35.In the present invention, the other end of CC minor matters 322 is connected the connection of employing corner cut with an end of CD minor matters 323.
The 11 radiant body 33 is provided with the 11 square corner cut paster 331, CE minor matters 322 and CF minor matters 323; Cut the identical CE corner cut 331a of structure and CF corner cut 331b on the diagonal of the described the 11 square corner cut paster 331; One end of CE minor matters 332 is connected with the base of the 11 square corner cut paster 331, and the other end of CE minor matters 332 is connected with an end of CF minor matters 333, and the other end of CF minor matters 333 is connected with the 15 little band impedance transformation line 356 of the 3rd feeding network 35.In the present invention, the other end of CE minor matters 332 is connected the connection of employing corner cut with an end of CF minor matters 333.
The 12 radiant body 34 is provided with the 12 square corner cut paster 341, CG minor matters 342 and CH minor matters 343; Cut the identical CG corner cut 341a of structure and CH corner cut 341b on the diagonal of the described the 12 square corner cut paster 341; One end of CG minor matters 342 is connected with the base of the 12 square corner cut paster 341, and the other end of CG minor matters 342 is connected with an end of CH minor matters 343, and the other end of CH minor matters 343 is connected with the 16 little band impedance transformation line 357 of the 3rd feeding network 35.In the present invention, the other end of CG minor matters 342 is connected the connection of employing corner cut with an end of CH minor matters 343.
The 3rd feeding network 35 includes the tenth feed section 351, the 11 feed section 352, the 12 feed section 353; The stem of the tenth feed section 351 is provided with the 13 little band impedance transformation line 354, the joint of the tenth feed section 351 and the 11 feed section 352 is provided with the 14 little band impedance transformation line 355, the afterbody that the joint of the 11 feed section 352 and the 12 feed section 353 is provided with the 15 little band impedance transformation line 356, the 12 feed sections 353 is provided with the 16 little band impedance transformation line 357.The 13 little other end with impedance transformation line 354 is connected with the other end of CB minor matters 313; The 14 little other end with impedance transformation line 355 is connected with the other end of CD minor matters 323; The 15 little other end with impedance transformation line 356 is connected with the other end of CF minor matters 333; The 16 little other end with impedance transformation line 357 is connected with the other end of CH minor matters 343.The stem of the tenth feed section 351 is connected with the CI minor matters 631 of the 3rd little band coupling minor matters 63.
The 3rd little band coupling minor matters 36 are provided with CI minor matters 361, CJ minor matters 362 and CK minor matters 363, CI minor matters 361 1 ends are connected with CJ minor matters 362, the other end of CJ minor matters 362 is connected with CK minor matters 363 by CL corner cut 364, and the other end of CK minor matters 363 is connected with the 3rd little band impedance transformation line 503 of apex drive network 5.
6. 16 unit microstrip array antennas of minute rotating feed such as power according to claim 1, it is characterized in that: the 4th antenna array element 4 is made of the 13 radiant body 41, the 14 radiant body 42, the 15 radiant body 43, the 16 radiant body 44, the 4th feeding network 45 and the 4th little band coupling minor matters 64;
Wherein, the 13 radiant body 41, the 14 radiant body 42, the 15 radiant body 43 are identical with the 16 radiant body 44 structures.
The 13 radiant body 41, the 14 radiant body 42, the 15 radiant body 43 and the 16 radiant body 44 according to clockwise direction be arranged in the 4th feeding network 45 around.
The 13 radiant body 41 is provided with the 13 square corner cut paster 411, DA minor matters 412 and DB minor matters 413; Cut the identical DA corner cut 411a of structure and DB corner cut 411b on the diagonal of the described the 13 square corner cut paster 411; One end of DA minor matters 412 is connected with the base of the 13 square corner cut paster 411, and the other end of DA minor matters 412 is connected with an end of DB minor matters 413, and the other end of DB minor matters 413 is connected with the 17 little band impedance transformation line 454 of the 4th feeding network 45.In the present invention, the other end of DA minor matters 412 is connected the connection of employing corner cut with an end of DB minor matters 413.
The 14 radiant body 42 is provided with the tenth square corner cut paster 421, DC minor matters 422 and DD minor matters 423; Cut the identical DC corner cut 421a of structure and DD corner cut 421b on the diagonal of described the tenth square corner cut paster 421; One end of DC minor matters 422 is connected with the base of the tenth square corner cut paster 421, and the other end of DC minor matters 422 is connected with an end of DD minor matters 423, and the other end of DD minor matters 423 is connected with the 18 little band impedance transformation line 455 of the 4th feeding network 45.In the present invention, the other end of DC minor matters 422 is connected the connection of employing corner cut with an end of DD minor matters 423.
The 15 radiant body 43 is provided with the 15 square corner cut paster 431, DE minor matters 422 and DF minor matters 423; Cut the identical DE corner cut 431a of structure and DF corner cut 431b on the diagonal of the described the 15 square corner cut paster 431; One end of DE minor matters 432 is connected with the base of the 15 square corner cut paster 431, and the other end of DE minor matters 432 is connected with an end of DF minor matters 433, and the other end of DF minor matters 433 is connected with the 19 little band impedance transformation line 456 of the 4th feeding network 45.In the present invention, the other end of DE minor matters 432 is connected the connection of employing corner cut with an end of DF minor matters 433.
The 16 radiant body 44 is provided with the tenth hexagon corner cut paster 441, DG minor matters 442 and DH minor matters 443; Cut the identical DG corner cut 441a of structure and DH corner cut 441b on the diagonal of described the tenth hexagon corner cut paster 441; One end of DG minor matters 442 is connected with the base of the tenth hexagon corner cut paster 441, and the other end of DG minor matters 442 is connected with an end of DH minor matters 443, and the other end of DH minor matters 443 is connected with the 20 little band impedance transformation line 457 of the 4th feeding network 45.In the present invention, the other end of DG minor matters 442 is connected the connection of employing corner cut with an end of DH minor matters 443.
The 4th feeding network 45 includes the 13 feed section 451, the 14 feed section 452, the 15 feed section 453; The stem of the 13 feed section 451 is provided with the 17 little band impedance transformation line 454, the joint of the 13 feed section 451 and the 14 feed section 452 is provided with the 18 little band impedance transformation line 455, the afterbody that the joint of the 14 feed section 452 and the 15 feed section 453 is provided with the 19 little band impedance transformation line 456, the 15 feed sections 453 is provided with the 20 little band impedance transformation line 457.The 17 little other end with impedance transformation line 454 is connected with the other end of DB minor matters 413; The 18 little other end with impedance transformation line 455 is connected with the other end of DD minor matters 423; The 19 little other end with impedance transformation line 456 is connected with the other end of DF minor matters 433; The 20 little other end with impedance transformation line 457 is connected with the other end of DH minor matters 443.The stem of the 13 feed section 451 is connected with the DI minor matters 641 of the 4th little band coupling minor matters 64.
The 4th little band coupling minor matters 46 are provided with DI minor matters 461, DJ minor matters 462 and DK minor matters 463, DI minor matters 461 1 ends are connected with DJ minor matters 462, the other end of DJ minor matters 462 is connected with DK minor matters 463 by DL corner cut 464, and the other end of DK minor matters 463 is connected with the 4th little band impedance transformation line 504 of apex drive network 5.
7. 16 unit microstrip array antennas of minute rotating feed such as power according to claim 1, it is characterized in that: the antenna array axial ratio of this 16 unit microstrip array antenna is at resonance frequency f rIn, and less than 1.0dB, each antenna element radiant body in resonance frequency voltage standing wave ratio less than 2.0.
8. 16 unit microstrip array antennas of minute rotating feed such as power according to claim 1, it is characterized in that: install in the little band allotment minor matters employing order 90-degree rotation orientation of four antenna array elements, has guaranteed that the phase place between four antenna array elements differs 90 degree successively.
CN2013101950134A 2013-05-22 2013-05-22 Sixteen-unit micro-strip array antenna capable of carrying out power equal-division rotating feed Pending CN103326132A (en)

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CN113097718A (en) * 2021-03-04 2021-07-09 西安交通大学 Dual-frequency dual-circular-polarization common-caliber antenna for satellite communication
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CN103490143A (en) * 2013-09-27 2014-01-01 佛山市蓝波湾通讯设备有限公司 Array antenna
CN104332713B (en) * 2014-11-14 2017-03-15 南京理工大学 Monolayer double frequency round polarized micro-strip array antenna
WO2017067032A1 (en) * 2015-10-19 2017-04-27 叶雷 Gnss signal receiving antenna
CN106935982B (en) * 2015-12-31 2020-09-25 航天信息股份有限公司 Planar array antenna
CN106935982A (en) * 2015-12-31 2017-07-07 航天信息股份有限公司 Planar array antenna
CN105789872A (en) * 2016-03-25 2016-07-20 广东工业大学 Compact circular polarization array antenna of 5.8GHzISA frequency range
CN106252902A (en) * 2016-09-28 2016-12-21 广东工业大学 A kind of Compact type broadband end-fired array array antenna
CN106252902B (en) * 2016-09-28 2023-03-24 广东工业大学 Compact broadband end-fire array antenna
CN106505315A (en) * 2016-12-27 2017-03-15 广东工业大学 A kind of compact directional array antenna
CN109116310A (en) * 2018-09-11 2019-01-01 广东圣大电子有限公司 A kind of aircraft collision avoidance system secondary radar radio frequency transceiver
CN109116310B (en) * 2018-09-11 2023-10-20 广东圣大电子有限公司 Secondary radar radio frequency transceiver of airplane anti-collision system
CN111146566B (en) * 2019-12-27 2021-10-15 中国航空工业集团公司西安飞机设计研究所 Domestic large aircraft anti-collision radar antenna
CN111146566A (en) * 2019-12-27 2020-05-12 中国航空工业集团公司西安飞机设计研究所 Domestic large aircraft anti-collision radar antenna
CN111682305A (en) * 2020-05-25 2020-09-18 电子科技大学 Low-profile circularly polarized microstrip antenna for satellite communication
CN113097718A (en) * 2021-03-04 2021-07-09 西安交通大学 Dual-frequency dual-circular-polarization common-caliber antenna for satellite communication
CN113097718B (en) * 2021-03-04 2022-07-12 西安交通大学 Dual-frequency dual-circular-polarization common-caliber antenna for satellite communication
WO2023109868A1 (en) * 2021-12-14 2023-06-22 西安电子科技大学 Antenna module and electronic device

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