CN115663483B - Super-surface end-fire broadband dipole array antenna and processing method - Google Patents
Super-surface end-fire broadband dipole array antenna and processing method Download PDFInfo
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- CN115663483B CN115663483B CN202211407591.5A CN202211407591A CN115663483B CN 115663483 B CN115663483 B CN 115663483B CN 202211407591 A CN202211407591 A CN 202211407591A CN 115663483 B CN115663483 B CN 115663483B
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- 238000003672 processing method Methods 0.000 title claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 122
- 229910052751 metal Inorganic materials 0.000 claims abstract description 122
- 239000004020 conductor Substances 0.000 claims abstract description 108
- 239000000758 substrate Substances 0.000 claims abstract description 50
- 230000010354 integration Effects 0.000 claims abstract description 10
- 239000010410 layer Substances 0.000 claims description 56
- 239000012790 adhesive layer Substances 0.000 claims description 7
- 230000007423 decrease Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 8
- 230000005855 radiation Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000218645 Cedrus Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
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- 230000009977 dual effect Effects 0.000 description 1
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- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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- 238000012545 processing Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a super-surface end-fire broadband dipole array antenna and a processing method thereof, and belongs to the technical field of wireless communication. The antenna is composed of a substrate integrated double wire, a broadband dipole array and a super-surface unit. The substrate integrated double line comprises a top layer metal outer conductor, a bottom layer metal outer conductor, a metal inner conductor, an upper medium layer, a lower medium layer and a middle bonding layer; dipole units in the broadband dipole array are sequentially arranged on the same plane according to length, and are connected in series through metal inner conductors extending out of the substrate integration double lines; the super-surface structure is composed of a plurality of square metal patches which are arranged from large to small according to the size, so that the super-surface structure not only can play a good role of a director, but also can be used for compensating the inconsistency of dipole currents at high frequency, thereby not only improving the gain of the antenna in the end-fire direction, but also expanding the frequency bandwidth of the antenna. The invention has a series of advantages of low loss, miniaturization, wide frequency band, high gain, easy integration and the like.
Description
Technical Field
The invention relates to the technical field of broadband antennas, in particular to a super-surface end-fire broadband dipole array antenna and a processing method thereof.
Background
The development of modern communication systems is on the rise, and the propagation rate of information between various communication devices is also rapidly increasing. As antennas for radio signal transmission devices, communication systems are also increasingly demanding. As an important ring in a communication system, the optimization degree of the performance of the antenna has a great influence on the performance index of the whole communication system, and meanwhile, the antenna also faces the challenges of broadband and miniaturization.
The substrate integrated two-wire technology (SIDL) is a novel transmission line combining a substrate integrated coaxial line and a coplanar strip line, and has the advantages of low electromagnetic radiation, low insertion loss, compact structure, easy integration and the like. The substrate integrated double-line has two TEM transmission modes of an odd mode and an even mode, and provides more flexible application for antenna design research. The substrate integrated double lines can realize high-performance microwave and millimeter wave components and are beneficial to realizing the planarization design of the antenna.
Dipole antennas are the most structurally simple and widely used type of antennas in radio communications. The printed dipole antenna has a small volume and a simple structure, can realize a wide impedance bandwidth and stable gain, and is widely applied to wireless communication systems.
The conventional series dipole array has narrow bandwidth and high side lobe level, distortion occurs in a high-frequency radiation pattern, side lobes are increased, and good impedance matching cannot be obtained.
Disclosure of Invention
Aiming at the problems, the invention provides a super-surface end-fire broadband dipole array antenna capable of realizing high-gain and wide-bandwidth working performance and a processing method thereof.
The technical scheme of the invention is as follows: a super-surface end-fire broadband dipole array antenna comprises a structural substrate, wherein the structural substrate is sequentially provided with a substrate integration double line, a broadband dipole array and a super-surface structure from front to back,
the structural substrate comprises an upper medium layer, a middle bonding layer and a lower medium layer which are sequentially arranged from top to bottom;
the substrate integrated double line comprises a top metal outer conductor, a bottom metal outer conductor and a metal inner conductor,
the top metal outer conductor is arranged on the upper surface of the upper medium layer, the bottom metal outer conductor is arranged on the lower surface of the lower medium layer,
the metal inner conductor is positioned in the middle of the middle bonding layer and comprises a left metal inner conductor and a right metal inner conductor which are parallel;
the broadband dipole array is positioned in the middle bonding layer, and the metal inner conductor extends backwards and is used for feeding the broadband dipole array;
the super-surface structure is arranged on the upper surface of the upper medium layer and comprises a plurality of rows of metal patches.
The broadband dipole array comprises a plurality of parallel dipole units, the lengths of the dipole units are gradually reduced along the extending direction of the metal inner conductors,
the dipole unit includes a pair of symmetrical dipole arms, the metal inner conductor is positioned between the pair of dipole arms,
a pair of dipole arms connects the left side metal inner conductor and the right side metal inner conductor, respectively.
The included angle between the left metal inner conductor and the dipole arm correspondingly connected with the left metal inner conductor is 40-50 degrees.
In the plurality of dipole units, the distance between adjacent dipole units gradually decreases along the extending direction of the metal inner conductor.
The metal patches are square, and the sizes of the metal patches in a plurality of rows are gradually reduced along the extending direction of the metal inner conductor.
The front end middle of the super surface structure is provided with a C-shaped opening, and the broadband dipole array extends into the C-shaped opening in the vertical direction.
And the substrate assembly double-line is provided with two rows of metallized through holes, and the metal inner conductor is positioned in the middle of the two rows of metallized through holes.
The diameter of the metallized through holes is 5mm, and the pitch of adjacent metallized through holes in each row is 8mm.
The upper medium layer and the lower medium layer are printed circuit substrates with the thickness of 1mm, and the middle bonding layer is a prepreg with the thickness of 0.1 mm.
A processing method of a super-surface end-fire broadband dipole array antenna comprises the following steps:
s1, manufacturing a structural substrate, wherein an upper medium layer, a middle bonding layer and a lower medium layer are sequentially arranged from top to bottom;
s2, sequentially arranging a substrate integration double line, a broadband dipole array and a super-surface structure on a structural substrate from front to back;
wherein the substrate integrated double line comprises a top metal outer conductor, a bottom metal outer conductor and a metal inner conductor,
the top metal outer conductor is arranged on the upper surface of the upper medium layer, the bottom metal outer conductor is arranged on the lower surface of the lower medium layer,
the metal inner conductor is positioned in the middle of the middle bonding layer and comprises a left metal inner conductor and a right metal inner conductor which are parallel;
the broadband dipole array is arranged in the middle bonding layer, and the metal inner conductor extends backwards and is used for feeding the broadband dipole array;
the super-surface structure is arranged on the upper surface of the upper medium layer and comprises a plurality of rows of metal patches.
The invention comprises a substrate integrated double line, a broadband dipole array and a super-surface structure in operation, wherein, the metal inner conductor in the substrate integrated double line extends to be connected with the broadband dipole array to feed the broadband dipole array, and the two are combined to realize the integrated design of the antenna feed structure and simultaneously add the super-surface structure to improve the antenna performance.
On one hand, the invention uses the substrate integrated double lines with good sealing property to feed, is easy to integrate with other circuits, and can reduce the loss in the energy transmission process; on the other hand, the added super-surface structure not only can play a good role of a director, but also can be used for compensating the inconsistency of dipole currents at high frequency, so that the gain of the antenna in the end-fire direction can be improved, and the frequency bandwidth of the antenna can be expanded.
Drawings
Figure 1 is a schematic view of the structure of the present invention,
figure 2 is a schematic diagram of the structure of the upper dielectric layer,
figure 3 is a schematic structural view of an intermediate adhesive layer,
figure 4 is a schematic view of the structure of the underlying dielectric layer,
figure 5 is a schematic diagram of a substrate integrated dual line structure,
fig. 6 shows a graph of reflectance versus time before and after adding a subsurface,
fig. 7 shows a gain curve versus graph for the present invention before and after adding the subsurface,
fig. 8 shows a comparison of E-plane patterns at 300MHz before and after addition of the subsurface of the present invention,
fig. 9 shows a comparison of E-plane patterns at 400MHz before and after addition of the subsurface of the present invention,
fig. 10 shows a comparison of E-plane patterns at 500MHz before and after addition of the subsurface of the present invention,
fig. 11 shows a comparison of E-plane patterns at 600MHz before and after addition of the subsurface of the present invention,
in the figure: 1-7 are dipole units, 8 are left side metal inner conductors, 9 are right side metal inner conductors, 10 are top metal outer conductors, 11 are bottom metal outer conductors, 12 are upper dielectric layers, 13 are lower dielectric layers, 14 are middle adhesive layers, 15 are metallized through holes, a-f are super-surface units, I are substrate integrated double lines, II are broadband dipole arrays, and III are super-surface structures.
Detailed Description
In order to further explain the technical means adopted by the invention to achieve the preset aim, the following describes the ultra-surface end-fire broadband dipole array antenna in detail by referring to the attached drawings and the specific embodiments.
As shown in fig. 1-5, the ultra-surface end-fire broadband dipole array antenna provided by the invention comprises a structural substrate, wherein the structural substrate is sequentially provided with a substrate integration double line I, a broadband dipole array II and an ultra-surface structure III from front to back,
the structural substrate comprises an upper medium layer 12, a middle bonding layer 14 and a lower medium layer 13 which are sequentially arranged from top to bottom;
the substrate integrated twin wire comprises a top metal outer conductor 10, a bottom metal outer conductor 11 and a metal inner conductor,
the top metal outer conductor 10 is arranged on the upper surface of the upper dielectric layer 12, the bottom metal outer conductor 11 is arranged on the lower surface of the lower dielectric layer 13,
the metal inner conductor is positioned in the middle of the middle bonding layer 14 and comprises a left side metal inner conductor 8 and a right side metal inner conductor 9 which are parallel;
the wideband dipole array is located in the intermediate adhesive layer 14, and the metallic inner conductor extends rearward for feeding the wideband dipole array;
the super surface structure is arranged on the upper surface of the upper dielectric layer 12, and comprises a plurality of rows of metal patches.
The invention comprises a substrate integrated double line, a broadband dipole array and a super-surface structure in operation, wherein, the metal inner conductor in the substrate integrated double line extends to be connected with the broadband dipole array to feed the broadband dipole array, and the two are combined to realize the integrated design of the antenna feed structure and simultaneously add the super-surface structure to improve the antenna performance.
On one hand, the invention uses the substrate integrated double lines with good sealing property to feed, is easy to integrate with other circuits, and can reduce the loss in the energy transmission process; on the other hand, the added super-surface structure not only can play a good role of a director, but also can be used for compensating the inconsistency of dipole currents at high frequency, so that the gain of the antenna in the end-fire direction can be improved, and the frequency bandwidth of the antenna can be expanded.
The broadband dipole array has a plurality of parallel dipole units, the lengths of which gradually decrease along the extending direction of the metal inner conductor, and the broadband dipole array is similar to a cedar shape, as shown in figure 3,
the dipole unit includes a pair of symmetrical dipole arms, the metal inner conductor is positioned between the pair of dipole arms,
a pair of dipole arms connects the left metal inner conductor 8 and the right metal inner conductor 9, respectively.
The two metal inner conductors of the substrate integrated double line extend outwards, extra branches (namely dipole arms) are introduced on the extended metal inner conductors, and the branches on two sides are symmetrically distributed about the central line of the substrate integrated double line. The electric field phase of the metal inner conductor is reversed in the odd mode transmission mode, so that symmetrical metal branches form a dipole unit.
Multiple dipole elements in series may increase the impedance of the antenna, thereby increasing the bandwidth.
Meanwhile, the short dipole arm can be used as a director of long dipole radiation at low frequency, and the long dipole arm can be used as a reflector of short dipole radiation at high frequency, so that the front-to-back ratio of the antenna is improved, and the gain is improved.
The included angle between the left metal inner conductor 8 and the dipole arm correspondingly connected with the left metal inner conductor is 40-50 degrees.
If 7 dipole units are arranged and connected on the extended metal inner conductor, an included angle of 45 degrees is formed between the 7 dipole units and the metal inner conductor, so that the size of the antenna is reduced, and mutual coupling among the dipole units is reduced.
In the plurality of dipole units, the distance between the adjacent dipole units is gradually reduced along the extending direction of the metal inner conductor so as to reduce the size of the antenna, and meanwhile, mutual coupling caused by too close distance between the adjacent dipole units is avoided.
The arm length of the dipole unit determines the working frequency of the antenna, the arm length of the dipole unit 1 is 220mm, and the distance between the joint of the inner conductor and the substrate integration double line is 180mm;
the arm length of the dipole unit 2 is 200mm, and the distance between the joint of the dipole unit 2 and the metal inner conductor and the joint of the dipole unit 1 and the metal inner conductor is 90mm;
the arm length of the dipole unit 3 is 180mm, and the distance between the joint of the dipole unit 3 and the metal inner conductor and the joint of the dipole unit 2 and the metal inner conductor is 85mm;
the arm length of the dipole unit 4 is 160mm, and the distance between the joint of the dipole unit 4 and the metal inner conductor and the joint of the dipole unit 3 and the metal inner conductor is 80mm;
the arm length of the dipole unit 5 is 140mm, and the distance between the joint of the dipole unit 5 and the metal inner conductor and the joint of the dipole unit 4 and the metal inner conductor is 75mm;
the arm length of the dipole unit 6 is 120mm, and the distance between the joint of the dipole unit 6 and the metal inner conductor and the joint of the dipole unit 5 and the metal conductor is 70mm;
the arm length of the dipole unit 7 is 100mm, and the distance between the connection point of the dipole unit 7 and the metal inner conductor and the connection point of the dipole unit 6 and the metal inner conductor is 65mm.
The metal patches are square, and the sizes of the metal patches in a plurality of rows are gradually reduced along the extending direction of the metal inner conductor.
If 6 rows of square metal patches are arranged at equal intervals from large to small, the interval is 40mm. The side length of the square metal patch a is 35mm, the side length of the square metal patch b is 33mm, the side length of the square metal patch c is 29mm, the side length of the square metal patch d is 25mm, the side length of the square metal patch e is 20mm, and the side length of the square metal patch f is 15mm.
And a C-shaped opening is arranged in the middle of the front end of the super-surface structure, and the broadband dipole array stretches into the C-shaped opening in the vertical direction, so that the broadband dipole array is prevented from being overlapped with an antenna, and the H-plane directional diagram of the antenna is prevented from being deteriorated. The super-surface structure is positioned at the front end of the antenna radiation direction, and can integrate the antenna radiation beam to achieve the effect of improving the antenna gain.
The substrate integrated double-line is provided with two rows of metallized through holes 15, and the metal inner conductor is positioned in the middle of the two rows of metallized through holes 15.
The metallized through holes 15 are used for forming a closed structure, so that the structure has good shielding; the metal materials in the invention are all copper.
The diameter of the metallized through holes 15 is 5mm, and the pitch of adjacent metallized through holes 15 in each row is 8mm. The proper size and pitch of the through holes can reduce the processing difficulty and simultaneously achieve the purpose of preventing electromagnetic wave leakage.
The upper medium layer 12 and the lower medium layer 13 are respectively Rogers RO4003C printed circuit boards with the thickness of 1mm, and the middle bonding layer 14 is a Rogers RO4450B prepreg with the thickness of 0.1 mm.
A processing method of a super-surface end-fire broadband dipole array antenna comprises the following steps:
s1, manufacturing a structural substrate, wherein an upper medium layer 12, an intermediate bonding layer 14 and a lower medium layer 13 are sequentially arranged from top to bottom;
s2, sequentially arranging a substrate integration double line, a broadband dipole array and a super-surface structure on a structural substrate from front to back;
wherein the substrate integrated double line comprises a top metal outer conductor 10, a bottom metal outer conductor 11 and a metal inner conductor,
the top metal outer conductor 10 is arranged on the upper surface of the upper dielectric layer 12, the bottom metal outer conductor 11 is arranged on the lower surface of the lower dielectric layer 13,
the metal inner conductor is positioned in the middle of the middle bonding layer 14 and comprises a left side metal inner conductor 8 and a right side metal inner conductor 9 which are parallel;
disposing the wideband dipole array in the intermediate adhesive layer 14, the metallic inner conductor extending rearwardly for feeding the wideband dipole array;
the super surface structure is arranged on the upper surface of the upper dielectric layer 12, and comprises a plurality of rows of metal patches.
In the embodiment, the simulation software is used for carrying out parameter simulation on the antenna, and because the antenna works in a free space, after the antenna model is established, the boundary of the antenna is set to be an ideal boundary condition, the input port of the antenna is set to be a waveguide port, and the performance of the frequency band of 100MHz-1000MHz is analyzed and calculated.
As shown in FIG. 6, the reflection coefficient parameter simulation graphs of the antenna before and after adding the super surface are compared, and it can be seen that when the super surface is not added, the-10 dB impedance bandwidth of the antenna is 300-580 MHz, and when the super surface structure is added, the-10 dB impedance bandwidth of the antenna is 300-620MHz, so that the bandwidth of the antenna is expanded.
As shown in fig. 7, a simulation and test chart of the gain of the antenna are shown, it can be seen that the gain of the antenna in the frequency band without adding the super surface is 4.76-7.38 dBi, the gain of the antenna is drastically reduced in the frequency band higher than 450MHz, because the antenna is distorted in the high-frequency radiation pattern, the sidelobes are increased, and good impedance matching cannot be obtained. The ultra-surface structure can compensate the inconsistency of dipole current at high frequency, improves the gain of the antenna in the end-firing direction, and ensures that the in-band gain of the antenna is kept above 6 dBi.
As shown in fig. 8-11, after the frequency of the antenna without the super surface is increased, the radiation pattern is distorted, and the side lobe is increased, so that the gain is reduced. The introduction of the super surface can reduce the distortion of the directional diagram at high frequency, and the good end-fire characteristic is maintained.
According to the above description, the invention has the characteristics of wide frequency band, high gain, miniaturization and the like, and the applicable frequency band of the antenna is 300-620MHz.
The integrated design of the antenna feed structure can be realized by combining the substrate integrated double-line dipole array antenna and the super-surface, and the integrated design has the characteristics of wide bandwidth, high gain, low side lobe, high front-back ratio and the like.
Claims (7)
1. The ultra-surface end-fire broadband dipole array antenna comprises a structural substrate, and is characterized in that the structural substrate is sequentially provided with a substrate integration double line, a broadband dipole array and an ultra-surface structure from front to back,
the structural substrate comprises an upper medium layer (12), a middle bonding layer (14) and a lower medium layer (13) which are sequentially arranged from top to bottom;
the substrate integrated double line comprises a top metal outer conductor (10), a bottom metal outer conductor (11) and a metal inner conductor,
the top metal outer conductor (10) is arranged on the upper surface of the upper medium layer (12), the bottom metal outer conductor (11) is arranged on the lower surface of the lower medium layer (13),
the metal inner conductor is positioned in the middle of the middle bonding layer (14) and comprises a left metal inner conductor (8) and a right metal inner conductor (9) which are parallel;
the broadband dipole array is located in an intermediate adhesive layer (14), and the metal inner conductor extends backwards for feeding the broadband dipole array;
the super-surface structure is arranged on the upper surface of the upper medium layer (12), and comprises a plurality of rows of metal patches;
the broadband dipole array comprises a plurality of parallel dipole units, the lengths of the dipole units are gradually reduced along the extending direction of the metal inner conductors,
the dipole unit includes a pair of symmetrical dipole arms, the metal inner conductor is positioned between the pair of dipole arms,
a pair of dipole arms respectively connected with the left metal inner conductor (8) and the right metal inner conductor (9);
in the dipole units, the distance between adjacent dipole units is gradually reduced along the extending direction of the metal inner conductor;
the front end middle of the super surface structure is provided with a C-shaped opening, and the broadband dipole array extends into the C-shaped opening in the vertical direction.
2. A super-surface end-fire broadband dipole array antenna according to claim 1, characterized in that the angle between said left metal inner conductor (8) and its corresponding connected dipole arm is 40-50 °.
3. The ultra-surface end-fire broadband dipole array antenna according to claim 1, wherein said metallic patches are square, and wherein the dimensions of said metallic patches in said plurality of rows decrease gradually along the extension of said metallic inner conductor.
4. A super-surface end-fire broadband dipole array antenna according to claim 1, characterized in that said substrate assembly is provided with two rows of metallized vias (15) on a double line, said metal inner conductor being located in the middle of the two rows of metallized vias (15).
5. The ultra-surface end-fire broadband dipole array antenna as recited in claim 4, wherein,
the diameter of the metalized through holes (15) is 5mm, and the pitch of the adjacent metalized through holes (15) in each row is 8mm.
6. The super-surface end-fire broadband dipole array antenna according to claim 1, wherein said upper dielectric layer (12) and said lower dielectric layer (13) are printed circuit boards having a thickness of 1mm, and said intermediate adhesive layer (14) is a prepreg having a thickness of 0.1 mm.
7. The processing method of the ultra-surface end-fire broadband dipole array antenna is characterized by comprising the following steps of:
s1, manufacturing a structural substrate, wherein an upper medium layer (12), an intermediate bonding layer (14) and a lower medium layer (13) are sequentially arranged from top to bottom;
s2, sequentially arranging a substrate integration double line, a broadband dipole array and a super-surface structure on a structural substrate from front to back;
wherein the substrate integrated double line comprises a top metal outer conductor (10), a bottom metal outer conductor (11) and a metal inner conductor,
the top metal outer conductor (10) is arranged on the upper surface of the upper medium layer (12), the bottom metal outer conductor (11) is arranged on the lower surface of the lower medium layer (13),
the metal inner conductor is positioned in the middle of the middle bonding layer (14) and comprises a left metal inner conductor (8) and a right metal inner conductor (9) which are parallel;
disposing the wideband dipole array in an intermediate adhesive layer (14), the metallic inner conductor extending rearwardly for feeding the wideband dipole array;
the super-surface structure is arranged on the upper surface of the upper medium layer (12), and comprises a plurality of rows of metal patches.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211407591.5A CN115663483B (en) | 2022-11-10 | 2022-11-10 | Super-surface end-fire broadband dipole array antenna and processing method |
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| CN202211407591.5A CN115663483B (en) | 2022-11-10 | 2022-11-10 | Super-surface end-fire broadband dipole array antenna and processing method |
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| CN115663483B true CN115663483B (en) | 2023-12-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205141131U (en) * | 2015-11-06 | 2016-04-06 | 中国电子科技集团公司第三十八研究所 | High -gain end -fire conformal antenna and antenna array |
| CN108511924A (en) * | 2018-03-26 | 2018-09-07 | 东南大学 | A kind of broadband end-on-fire antenna array for millimeter-wave communication system |
| CN110112560A (en) * | 2019-06-06 | 2019-08-09 | 电子科技大学 | A kind of wide angle circular polarized antenna of millimeter wave broadband applied to beam scanning |
| CN212517542U (en) * | 2020-09-23 | 2021-02-09 | 浙江师范大学 | Terahertz end-fire array linear array antenna based on dipole antenna unit |
| CN113540778A (en) * | 2021-07-02 | 2021-10-22 | 西南交通大学 | Super-surface-covered vertical polarization plane broadband end-fire antenna |
| CN114156659A (en) * | 2021-11-30 | 2022-03-08 | 杭州电子科技大学 | Broadband common-caliber dipole array of Sub-6GHz and millimeter wave frequency bands |
-
2022
- 2022-11-10 CN CN202211407591.5A patent/CN115663483B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205141131U (en) * | 2015-11-06 | 2016-04-06 | 中国电子科技集团公司第三十八研究所 | High -gain end -fire conformal antenna and antenna array |
| CN108511924A (en) * | 2018-03-26 | 2018-09-07 | 东南大学 | A kind of broadband end-on-fire antenna array for millimeter-wave communication system |
| CN110112560A (en) * | 2019-06-06 | 2019-08-09 | 电子科技大学 | A kind of wide angle circular polarized antenna of millimeter wave broadband applied to beam scanning |
| CN212517542U (en) * | 2020-09-23 | 2021-02-09 | 浙江师范大学 | Terahertz end-fire array linear array antenna based on dipole antenna unit |
| CN113540778A (en) * | 2021-07-02 | 2021-10-22 | 西南交通大学 | Super-surface-covered vertical polarization plane broadband end-fire antenna |
| CN114156659A (en) * | 2021-11-30 | 2022-03-08 | 杭州电子科技大学 | Broadband common-caliber dipole array of Sub-6GHz and millimeter wave frequency bands |
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| CN115663483A (en) | 2023-01-31 |
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