CN113708060B - Dipole antenna based on three-dimensional differential feed structure - Google Patents
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H01Q1/00—Details of, or arrangements associated with, antennas
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- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
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Abstract
The invention discloses a dipole antenna based on a three-dimensional differential feed structure in the field of antennas, which sequentially comprises a first dielectric body, a second dielectric body and a third dielectric body from bottom to top, wherein the bottom surface of the first dielectric body is printed with an antenna ground, and the top surface of the third dielectric body is printed with two antenna vibrators; the first medium body is internally provided with a first metallized signal hole, and the first metallized signal hole is connected with the input end of the power distributor; a pair of metallized signal holes which are arranged in a left-right staggered manner by taking the metallized signal hole I as a center are respectively arranged in the second dielectric body and the third dielectric body, two metallized signal holes positioned on the same side in the two pairs are connected with the output end on the same side of the power distributor through strip lines in sequence to form a signal path, and the length difference of the two signal paths is lambda g/4. The invention has the advantages of low profile, miniaturization, wide frequency band, easy integration and light weight.
Description
Technical Field
The invention relates to the field of antennas, in particular to a dipole antenna based on a three-dimensional differential feed structure.
Background
With the rapid development of large-scale integrated circuits, novel electronic materials and high-density packaging interconnection technology, the industry has put demands on miniaturization, weight saving and high integration of radio frequency systems. Such as: the spaceborne phased array communication system requires a large beam scanning range, a changeable beam and a low installation section so as to facilitate the target communication with random distribution, high movement speed and strong service burstiness. Compared with the traditional reflector antenna, the satellite-borne phased array antenna has the advantages of heavy weight, high section and low efficiency; the space-based early warning system requires small folding volume, light weight and the like; for example, bandwidth affects the imaging resolution of microwave imaging radar. These demands have made it urgent to study low profile, miniaturization, weight saving and broadband technologies of antennas.
The low-profile antenna is realized by adopting new ideas on the basis of the traditional classical antenna theory, wherein the new ideas comprise new materials, new structures, new layout modes and the like, compared with the traditional antenna. At present, the low profile and miniaturization of the antenna are often at the cost of sacrificing certain performance indexes, and the antenna with the traditional plane structure has larger size, poorer performance and single function because of being limited by two-dimensional characteristics, so that the antenna cannot meet the requirements of people. Therefore, a multilayer structure antenna has been developed. As the name implies, the multi-layer structure antenna is to layout and design each component of the antenna in the longitudinal direction to realize various functions of the antenna, so that the multi-layer structure antenna can greatly improve each performance of the antenna and enrich the functions of the antenna on the premise of not increasing the transverse dimension of the antenna. Such as semiconductor technology, low temperature co-fired ceramic (Low Temperature Co-FIRED CERAMIC, LTCC for short), etc.
Dipole antennas are the most common antenna form in engineering applications, and in the fields of communication, broadcasting, television, radar, navigation, remote sensing testing, etc., dipole antennas have the effect that other antennas cannot replace. Despite the new ideas of various antenna designs and the application of some new materials to antenna designs, dipole antennas still have significant low-level in the antenna field due to the advantages of simple antenna structure, low manufacturing cost, stable performance and the like. The dipole antenna belongs to a balanced antenna, so that a balun for converting an unbalanced signal into a balanced signal is needed, the size of the traditional balun is about lambda g/4, the miniaturization and the low profile of the antenna are not facilitated, and meanwhile, the bandwidth of the general dipole antenna is narrower, and the use is not facilitated.
Disclosure of Invention
The invention provides a low-profile miniaturized ultra-wideband dipole antenna based on a novel three-dimensional differential feed structure, which has the advantages of simple antenna structure, strong expansibility and low realization difficulty, and can be used in the fields of large-scale phased array radars, airplanes, satellite radars and unmanned aerial vehicles.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The dipole antenna based on the three-dimensional differential feed structure sequentially comprises a first dielectric body, a second dielectric body and a third dielectric body from bottom to top, wherein the bottom surface of the first dielectric body is printed with an antenna ground, and the top surface of the third dielectric body is printed with two antenna vibrators; the first medium body is internally provided with a first metallized signal hole, and the first metallized signal hole is connected with the input end of the power distributor; a pair of metallized signal holes which are arranged in a left-right staggered manner by taking the metallized signal hole I as a center are respectively arranged in the second dielectric body and the third dielectric body, two metallized signal holes positioned on the same side in the two pairs are connected with the same side output end of the T-shaped junction power divider through strip lines in sequence to form a signal path, and the length difference of the two signal paths is lambda g/4.
As an improvement scheme of the invention, the two antenna elements are symmetrically arranged on the left and right of the metallized signal hole, and the antenna elements are butterfly-shaped elements.
As an improvement scheme of the invention, a groove is arranged on the butterfly oscillator.
As an improvement scheme of the invention, the slotting is shaped as a C-shaped slot, and openings of the C-shaped slots on the two butterfly vibrators are opposite.
As an improvement scheme of the invention, the sizes of the first metallized signal holes, the second dielectric body and the pair of metallized signal holes in the third dielectric body are different.
As an improvement of the invention, the antenna ground is a metal layer, an opening is arranged on the metal layer, and a feed pad is printed in the opening.
As a modification of the present invention, the total thickness of the first dielectric body 17, the second dielectric body 18, and the third dielectric body 19 is λ g/4.
The beneficial effects are that: compared with the traditional balun structure with the height of lambda g/4, the balun structure with the three-dimensional differential feed structure has the advantages that the balun structure with the two-dimensional planar structure is expanded to a three-dimensional structure, and the height of the balun structure is about lambda g/10, so that the section height of an antenna is greatly reduced. Because the balun structure is positioned under the butterfly-shaped oscillator, the transverse size of the antenna is not increased, and the miniaturization of the antenna is realized. Meanwhile, the balun structure adopts a composite structure of combining multiple metallized through holes with different sizes and strip lines, so that the balun has broadband characteristics and broadband of the antenna is realized. The antenna has the advantages of simple structure, strong expansibility, simple processing and low implementation difficulty.
Drawings
FIG. 1 is a schematic side view of embodiment 1 of the present invention;
FIG. 2 is a schematic top view of embodiment 1 of the present invention;
fig. 3 is a schematic size diagram of a butterfly oscillator according to embodiment 1 of the present invention;
FIG. 4 is a schematic diagram of a first layer strip line according to embodiment 1 of the present invention;
FIG. 5 is a schematic diagram of a second layer strip line according to embodiment 1 of the present invention;
FIG. 6 is a schematic view of a large-area grounding layer in embodiment 1 of the present invention;
FIG. 7 is a schematic diagram showing the dimensions of an antenna in embodiment 1 of the present invention;
FIG. 8 is a graph showing simulation results of standing wave of an antenna according to frequency variation in example 1 of the present invention;
FIG. 9 is a graph showing simulation results of antenna gain as a function of frequency in example 1 of the present invention;
Fig. 10 is a simulated E, H plane pattern of the antenna of embodiment 1 of the present invention at f=8 GHz;
fig. 11 is a simulated E, H plane pattern of the antenna of embodiment 1 of the present invention at f=12 GHz;
fig. 12 is a simulated E, H plane pattern of the antenna at f=16 GHz in embodiment 1 of the present invention.
FIG. 13 is a schematic side view of embodiment 2 of the present invention;
Fig. 14 is a plot of standing wave VSWR versus frequency for two antenna ports according to embodiment 2 of the present invention;
Fig. 15 is a graph showing the isolation between two antenna ports in embodiment 2 of the present invention;
fig. 16 is an E/H plane radiation pattern of one of the antenna ports in embodiment 2 of the present invention at five frequency points of 13.0G, 14.0G, 15.0G, 16.0G and 17.0G;
fig. 17 is an E/H plane radiation pattern of another antenna port in embodiment 2 of the present invention at five frequency points of 13.0G, 14.0G, 15.0G, 16.0G and 17.0G.
In the figure: 1-antenna ground; 2-feeding pads; 3-metallizing a first signal hole; 4-a power divider; 5-right stripline one; 6-left stripline one; 7-right metallized signal hole one; 8-left metallized signal hole one; 9-right stripline two; 10-left stripline two; 11-right metallized signal hole two; 12-left metallized signal hole two; 13-left butterfly vibrator; 14-right butterfly vibrator; 15-right signal path; 16-left signal path; 17-a first mediator; 18-a second mediator; 19-a third mediator; 20-first slotting; 21-second slotting; 22-first metallized signal aperture one; 23-first left metallized signal aperture one; 24-first right metallized signal aperture one; 25-left metal columns, 26-right metal columns; 27-a first left metallized signal aperture two; 28-first right metallized signal aperture two; 29-right striplines one by one; 30-right stripline two; 31-right stripline one three; 32-second metallized signal aperture one.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, a dipole antenna based on a three-dimensional differential feed structure includes, in order from bottom to top, a first dielectric body 17, a second dielectric body 18, and a third dielectric body 19. As shown in fig. 6, the bottom surface of the first dielectric body 17 is printed with an antenna ground 1, the antenna ground 1 is a large-area metal layer, a circular opening is formed in the metal layer, and a circular feeding pad 2 is printed in the circular opening, wherein the feeding pad 2 is used for accessing signals. As shown in fig. 2-3, the top surface of the third dielectric body 19 is printed with two antenna elements, and the antenna elements serve as radiation structures. The antenna element can be selected as a butterfly element, and two antenna elements are respectively called a left butterfly element 13 and a right butterfly element 14. The signals are fed through the feed pads 2, reach the left butterfly-shaped oscillator 13 and the right butterfly-shaped oscillator 14 of the radiation structure through the three-dimensional differential feed structures embedded in the first dielectric bodies 17, the second dielectric bodies 18 and the third dielectric bodies 19, and are radiated in the form of half-wave dipole antennas.
As a preferred embodiment, the left butterfly element 13 is provided with a first slot 20, the right butterfly element 14 is provided with a second slot 21, and the two slots are used for increasing the current path and widening the bandwidth of the antenna. The slotting shape is a C-shaped slot, the openings of the C-shaped slots on the two butterfly vibrators are opposite, and the C-shaped slot has a simple structure and is convenient to implement.
In this embodiment, the three-dimensional differential feeding structure refers to a composite structure design that metallized via holes with different sizes are combined with strip lines, and the lengths of the left and right signal paths of the feeding structure are designed by adopting a length difference. The total thickness of the first dielectric body 17, the second dielectric body 18 and the third dielectric body 19 is lambda g/4, and the specific number of layers and thickness of each part are designed according to the frequency range of application. The three-dimensional differential feed structure is described in detail below.
In example 1, the present example was applied to 12GHz to 16.5GHz, and the total of the dielectric layers of the first dielectric body 17, the second dielectric body 18, and the third dielectric body 19 was 34 layers. The first dielectric body 17 mainly comprises 6 Ferro A6M LTCC dielectric layers, and the thickness of each Ferro A6M LTCC dielectric layer is 0.094mm. The first dielectric body 17 is internally and vertically penetrated with a metallized signal hole I3, the top dielectric layer of the first dielectric body 17 is also provided with a power distributor 4, and the input end of the power distributor 4 is connected with the metallized signal hole I3. The power divider adopted here can adopt T-junction power divider, wilkinson power divider and the like, is suitable for being realized through an LTCC process technology, such as the Wilkinson power divider, and can realize the isolation resistance function in the power divider through a buried value film resistance technology in the LTCC.
The second dielectric body 18 is mainly composed of 8 Ferro A6M LTCC dielectric layers. In the second dielectric body 18, two metallized signal holes are vertically penetrated, which are arranged left and right with the metallized signal hole one 3 as a center, and are respectively called a left metallized signal hole one 8 and a right metallized signal hole one 7. As shown in fig. 4, the left metallized signal hole one 8 is connected with the left end of the power divider 4 through the left strip line one 6, and the right metallized signal hole one 7 is connected with the right end of the power divider 4 through the right strip line one 5.
The third dielectric body 19 mainly comprises 20 Ferro A6M LTCC dielectric layers. In the third dielectric body 19, two metallized signal holes are vertically penetrated and arranged left and right with the metallized signal hole one 3 as a center, and are respectively called a left metallized signal hole two 12 and a right metallized signal hole two 11. As shown in fig. 5, the left metallized signal hole two 12 and the right metallized signal hole two 11 are arranged in a staggered manner with the left metallized signal hole one 8 and the right metallized signal hole one 7, and the left metallized signal hole two 12 is connected with the left metallized signal hole one 8 through the left strip line two 10, and the right metallized signal hole two 11 is connected with the right metallized signal hole one 7 through the right strip line two 9.
The three-dimensional differential feed structure expands the balun of the traditional two-dimensional planar structure into the three-dimensional structure, the longitudinal dimension of the feed structure is folded by the composite structure of the metallized signal holes and the strip lines, the section height lambda/4 of the traditional dipole antenna is compressed to lambda/10 to the greatest extent, and the purpose of reducing the section height is achieved. Meanwhile, the feed structure is arranged right below the antenna element with the radiation structure, so that the transverse size of the antenna is not additionally increased, and the miniaturization of the antenna is realized. As shown in fig. 7, in this embodiment, the total thickness of the first dielectric body 17 is 0.564mm, the total thickness of the second dielectric body 18 is 0.752mm, the total thickness of the third dielectric body 19 is 1.880mm, the total thickness of the antenna is about 3.2mm, and the cross-sectional height is significantly reduced.
In the three-dimensional differential feed structure, the diameters of the left metallized signal hole I8 and the right metallized signal hole I7 are 0.127mm, the height is 0.564mm, and the diameters of the left metallized signal hole II 12 and the right metallized signal hole II 11 are 0.212mm and the height is 0.752mm. The lengths of the left strip line I6, the right strip line I5, the left strip line II 10 and the right strip line II 9 are obviously inconsistent because the left metallized signal hole I8 and the right metallized signal hole I7 are arranged in a staggered manner with the left metallized signal hole II 12 and the right metallized signal hole II 11. The composite structure formed by converting the metallized through holes with different sizes and the strip line can play a role of broadband balun by designing and optimizing the diameter and the height of the metallized through holes and the length and the width of the strip line.
The signal passes through the metallized signal hole one 3 in the first dielectric body 17 to the power divider 4 and then is split into two paths: one path sequentially passes through a left strip line I6, a left metallized signal hole I8 and a left strip line II 10 on the left side and then passes through a left metallized signal hole II 12, and is called a left signal path 16; the other path sequentially passes through the first right strip line 5, the first right metallized signal hole 7, the second right strip line 9 and then the second right metallized signal hole 11, and is called a right side signal path 15. The length difference between the left signal path 16 and the right signal path 15 is lambda g/4/4 (the medium wavelength corresponding to the central frequency of lambda g), so that the current finally reaching the radiation surface has similar amplitude and opposite phase, and the feed structure realizes the functions of constant amplitude inversion signal and impedance matching.
The signals passing through the first, second and third dielectric bodies finally reach the two antenna elements printed on the upper surface of the third dielectric body 19 and radiate in the form of half-wave dipole antennas. Because the antenna array is an improved butterfly-shaped oscillator and the surface of the butterfly-shaped oscillator is provided with grooves, a current path is increased, and therefore the ultra-wideband dipole antenna with the relative bandwidth of 69.4% is realized. The performance of the broadband balun with the structure is limited by the limit of the conventional LTCC process technology (line width precision, line spacing, metallized via hole diameter and the like), and the performance of the broadband balun is further improved after the LTCC process technology breaks through.
In addition, the first dielectric body, the second dielectric body and the third dielectric body are made of LTCC materials, and the antenna is made of the LTCC materials and an integrated processing technology, so that the processing precision and the antenna performance of the antenna are improved. The antenna is simple in structure, small in mass density and easy to realize system weight reduction; the LTCC technology can convert the tiny space of the plane into the distance in the space through the interconnection structure of the metallized signal holes, so that the antenna design is more flexible, and meanwhile, various passive devices (such as resistors, capacitors, inductors, couplers, filters, power dividers and the like) can be embedded in the antenna, and the passive devices are connected in the medium, so that the shortest interconnection is realized, the number and the weight of independent components are reduced to the greatest extent, and the complexity and the cost of the system are reduced; and the antenna is easier to design and process integrally with the T/R and control circuit at the rear end. The antenna structure is strong in expansibility, simple to process and low in implementation difficulty, and can be used in the fields of large-scale phased array radars, airplanes, satellite radars and unmanned aerial vehicles.
The length, width and height dimensions of the antenna in embodiment 1 are about 14mm by 3.2mm, and simulation results show that the frequency range of the antenna operation is 12 GHz-16.5 GHz, and the relative bandwidth is 69.4%. FIG. 8 is a graph showing the comparison of the antenna test results and simulation results, wherein the change trends of the two are basically consistent, and the change trend of the curves is basically consistent; FIG. 9 is a graph of Gain versus frequency for an antenna over an operating frequency range, where it can be seen that the Gain of the antenna over the entire frequency band is greater than or equal to 4.5dB; fig. 10, 11 and 12 respectively show the E, H plane patterns of the antenna at f=8 GHz, 12GHz and 16GHz, and the patterns of the antenna are relatively stable in the whole working frequency band.
In embodiment 2, this embodiment provides an LTCC dual polarized dipole antenna, as shown in fig. 13, where the three-dimensional differential feed structures of the two antennas are orthogonally placed. The antenna sequentially comprises a first dielectric body 17, a second dielectric body 18 and a third dielectric body 19 from bottom to top, wherein the first dielectric body, the second dielectric body and the third dielectric body are all Ferro A6M LTCC dielectric layers with the thickness of 0.094mm, the first dielectric layer 17 is 1 layer, the second dielectric body 18 is 3 layers, the third dielectric body 19 is 12 layers, and the total thickness is about lambda g/4.
The two antennas respectively correspond to a three-dimensional differential feed structure. As shown in fig. 13, the three-dimensional differential feed structures of the two antennas are arranged orthogonally. The three-dimensional differential feed structure of the first antenna is described in detail below.
The first dielectric body 17 is vertically penetrated with a first metallized signal hole I22, the top surface of the first dielectric body 17 is also provided with a first power distributor, and the bottom of the first metallized signal hole I22 is provided with a first feed pad. The second dielectric body 18 has a first left metallized signal hole one 23 and a first right metallized signal hole one 24 distributed about the first metallized signal hole one 22. In order to prevent the three-dimensional differential feed structures of the two antennas from crossing over on the same dielectric plane, the strip lines connecting the power divider with the first right metallized signal aperture one 24 are printed on different dielectric layers within the second dielectric body 18 at the crossing position. Specifically, two metal posts are disposed on the right side of the first metallized signal hole 22, and the two metal posts are distributed about the second metallized signal hole 32 of the other antenna, and the staggered height arrangement can reduce the coupling effect, so as to achieve the purpose of improving the isolation of the antenna. The third dielectric body 19 has a first left metallized signal hole two 27 and a first right metallized signal hole two 28 distributed therein, both of which are offset from the first left metallized signal hole one 23 and the first right metallized signal hole one 24. Two antenna elements which are arranged left and right are arranged on the top dielectric layer of the third dielectric body 19.
Thus, the signal is fed from the first feed pad, through the first metallized signal aperture one 22 to the first power divider, and then split into two paths: one path sequentially passes through the first left stripline 6 to the first left metallized signal hole 23 and then through the second left stripline 10 to the second left metallized signal hole 27, thereby forming the left side signal path 16. The other way sequentially reaches the left metal column 25 through the right strip line one 29, the right strip line one 30 connected between the top ends of the left metal column 25 and the right metal column 26, the right strip line one three 31 connected between the right metal column 26 and the bottom end of the first right metallized signal hole one 24, and reaches the first right metallized signal hole one 24, and the first right metallized signal hole one 24 reaches the first right metallized signal hole two 28 through the right strip line two 9 to form the right side signal path 15. The signal finally reaches the wire vibrator via the left signal path 16 and the right signal path 15 to feed the radiating part.
The three-dimensional feeding structure of the second antenna is similar to that of embodiment 1 with the front side and the rear side perpendicular to the paper surface as shown in fig. 13, except that two second metallized signal holes one connected with the second power divider through a strip line one are arranged in the second dielectric body 18 in front of and behind, two second metallized signal holes two connected with the two second metallized signal holes one through a strip line two are also arranged in front of and behind, respectively, and two antenna elements arranged in front of and behind are arranged on the top layer of the third dielectric body 19, and the two antenna elements are arranged orthogonal to the two antenna elements in the first antenna. The antenna oscillators in the two antennas are butterfly oscillators, and grooves are formed in the butterfly oscillators and used for prolonging the flow path of current and further expanding the standing wave bandwidth of the antennas.
The length and width heights of this embodiment are about 8mm x 1.504mm, and as shown in fig. 14, a curve of standing wave VSWR of two antenna ports with frequency is shown, it can be seen that there is a slight difference in VSWR curves of the two ports, which may be caused by the difference in the orthogonal feed structure. Fig. 15 shows the isolation curve between two antenna ports, and the two curves completely coincide due to the good symmetry of the structure. The two antenna ports meet the requirement that VSWR is less than or equal to 2.0 in the frequency band of 13.0 GHz-17.0 GHz, and the antenna has stable pattern and gain in the whole bandwidth. As shown in fig. 16-17, the 3dB beam widths of the two antenna ports are between 85 ° and 100 °, and the two antenna ports have very wide 3dB beam widths, and meanwhile, the gains of the antennas are relatively stable within the range of 13.0G-17.0G and are larger than 5.5dB, so that the requirements of satellite communication are met.
Although the present disclosure describes embodiments, not every embodiment is described in terms of a single embodiment, and such description is for clarity only, and one skilled in the art will recognize that the embodiments described in the disclosure as a whole may be combined appropriately to form other embodiments that will be apparent to those skilled in the art.
Therefore, the above description is not intended to limit the scope of the application; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (5)
1. The dipole antenna based on the three-dimensional differential feed structure is characterized by sequentially comprising a first dielectric body, a second dielectric body and a third dielectric body from bottom to top, wherein the bottom surface of the first dielectric body is printed with an antenna ground, the antenna ground is a metal layer, an opening is formed in the metal layer, and a feed pad is printed in the opening; the top surface of the third dielectric body is printed with two antenna elements which are arranged symmetrically about the metallized signal hole I, and the antenna elements are arranged as butterfly-shaped elements; the first medium body is internally provided with a first metallized signal hole, and the first metallized signal hole is connected with the input end of the power distributor; the second dielectric body and the third dielectric body are internally provided with a pair of metallized signal holes which are arranged in a left-right staggered way by taking the metallized signal hole I as a center, the sizes of the metallized signal holes I and a pair of metallized signal holes in the second dielectric body and the third dielectric body are different, two metallized signal holes positioned on the same side in the two pairs and the same side output end of the power distributor are sequentially connected through a strip line to form a signal path, and the length difference of the two signal paths is lambda g/4.
2. The dipole antenna as recited in claim 1, wherein said butterfly vibrator is provided with a slot.
3. The dipole antenna as recited in claim 2 wherein said slot is C-shaped and wherein the openings of the C-shaped slots in the two butterfly elements are opposite.
4. The dipole antenna as recited in claim 1 wherein said first dielectric body, said second dielectric body and said third dielectric body have a total thickness of λ g/4.
5. The dipole antenna as recited in claim 1 wherein said power divider is a T-junction power divider.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112701494A (en) * | 2020-12-02 | 2021-04-23 | 电子科技大学 | All-dielectric integrated planar ultra-wideband low-profile wide-angle scanning phased array antenna |
| CN113258278A (en) * | 2021-04-30 | 2021-08-13 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Broadband circularly polarized phased array antenna unit |
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| JP3776412B2 (en) * | 2003-04-30 | 2006-05-17 | 日本電業工作株式会社 | antenna |
| US9496623B2 (en) * | 2014-11-21 | 2016-11-15 | Sony Corporation | Dual band multi-layer dipole antennas for wireless electronic devices |
| US9839134B2 (en) * | 2015-12-22 | 2017-12-05 | Intel Corporation | Flexible integrated circuit that includes an antenna |
| CN106229645A (en) * | 2016-07-19 | 2016-12-14 | 电子科技大学 | A kind of double resonance molded breadth multiband dipole sub antenna |
| CN107681262B (en) * | 2017-09-12 | 2020-01-31 | 北京邮电大学 | low-profile magnetoelectric dipole antenna based on bent magnetic wall |
| US10320088B1 (en) * | 2018-11-13 | 2019-06-11 | The Florida International University Board Of Trustees | Balanced wideband impedance transformer |
| CN109921184B (en) * | 2019-02-01 | 2020-10-16 | 东南大学 | Substrate integrated electric dipole antenna and array based on low-profile microstrip feed structure |
| CN110148828B (en) * | 2019-05-22 | 2021-06-04 | 维沃移动通信有限公司 | Antenna unit and electronic device |
| CN112670704A (en) * | 2020-11-23 | 2021-04-16 | 扬州船用电子仪器研究所(中国船舶重工集团公司第七二三研究所) | Oblique 45-degree polarized radiation broadband tile-type phased array antenna |
| CN112701471B (en) * | 2020-11-27 | 2022-06-03 | 电子科技大学 | All-dielectric integrated ultra-wideband low-profile polymorphic conformal phased array antenna |
| CN112968281B (en) * | 2021-05-18 | 2021-09-24 | 华南理工大学 | Dual-polarized filtering antenna unit and dual-polarized filtering antenna array |
-
2021
- 2021-08-16 CN CN202110939128.4A patent/CN113708060B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112701494A (en) * | 2020-12-02 | 2021-04-23 | 电子科技大学 | All-dielectric integrated planar ultra-wideband low-profile wide-angle scanning phased array antenna |
| CN113258278A (en) * | 2021-04-30 | 2021-08-13 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Broadband circularly polarized phased array antenna unit |
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