CN116914427A - Ultra-wideband low-profile vertical polarization omnidirectional antenna applied to indoor subsystem - Google Patents
Ultra-wideband low-profile vertical polarization omnidirectional antenna applied to indoor subsystem Download PDFInfo
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- CN116914427A CN116914427A CN202310982592.0A CN202310982592A CN116914427A CN 116914427 A CN116914427 A CN 116914427A CN 202310982592 A CN202310982592 A CN 202310982592A CN 116914427 A CN116914427 A CN 116914427A
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- 230000010287 polarization Effects 0.000 title claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 81
- 229910052751 metal Inorganic materials 0.000 claims abstract description 81
- 230000005855 radiation Effects 0.000 claims abstract description 44
- 239000004020 conductor Substances 0.000 claims description 8
- 238000010586 diagram Methods 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 3
- 238000010146 3D printing Methods 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000004891 communication Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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Abstract
The invention provides an ultra-wideband low-profile vertical polarization omnidirectional antenna applied to a room subsystem, which comprises a metal floor, a radiation arm and a metal disc, wherein the radiation arm comprises wave-folded radiation arms and long straight radiation arms which are alternately arranged in a radial shape, and the top of the radiation arm is fixedly connected with the metal disc; the outer end of the wave-folded radiation arm is connected with the metal floor, and the part inside the outer end is suspended above the metal floor. The wave-folded radiating arm of the antenna is combined with the metal disc at the top, so that the section height of the antenna is reduced; the long straight radiation arm can generate a resonance point at a high-frequency point, and the resonance point is combined with the resonance point generated by the wave-folded radiation arm, so that the bandwidth of the antenna is expanded; six arc-shaped grooves are etched on the metal floor, so that the radiation performance at a high-frequency point can be improved, and the stability of the antenna in the whole working frequency band is ensured; the outermost end of the metal floor is bent upward and inward to reduce the planar size of the antenna while achieving a low profile and not affecting the performance of the antenna.
Description
Technical Field
The invention particularly relates to the technical field of antennas, in particular to an ultra-wideband low-profile vertically polarized omnidirectional antenna applied to a room subsystem.
Background
In current mobile communication, there is an increasing demand for indoor base stations, and indoor communication has become one of the main communication scenarios of daily life. Wherein, the omni-directional antenna capable of realizing 360 degrees of signal full coverage is the first choice of indoor base station. As 5G is beginning to be commercially available on a large scale, the use of 5G antennas is becoming widespread. Meanwhile, the 2G/3G/LTE frequency band still plays an important role in the evolution process of the communication technology. Therefore, the development of the antenna which simultaneously covers the frequency bands of 2G/3G/LTE/5G has good application prospect. The frequency band of 1.7-2.7 GHz is an important application of a 4G LTE (long-term evolution) network, and is of great interest in the design of base station antennas. In addition, N78 (3.3-3.8 GHz) and N79 (4.8-5 GHz) are the primary frequency bands for 5G communication deployment and testing. Because the indoor distributed omnidirectional antenna is arranged on the indoor ceiling, the lower section is beneficial to saving space and is more attractive. Therefore, there is an urgent need for a low profile indoor distribution antenna capable of simultaneously covering the three frequency bands.
Conventional indoor distributed omni-directional antennas are largely classified into single polarized omni-directional antennas and dual polarized omni-directional antennas, which are generally based on vertical polarization, because vertical polarized waves are more likely to propagate on undulating terrain in land mobile communication, thereby greatly reducing energy attenuation. At present, the vertical polarization antenna is mostly realized by a monopole antenna or a conical antenna, and has large section size and high production and manufacturing cost. Furthermore, for ultra wideband omni-directional antennas, prescription pattern degradation at high frequencies is a common problem.
The Chinese patent No. 109687132A discloses a low-profile vertically polarized ultra-wideband omni-directional antenna, which comprises: the circuit comprises a plurality of triangular metal sheets, short circuit metal columns, round metal sheets, rectangular grounding plates and coaxial feed parts. The cross-sectional height of the vertically polarized omnidirectional antenna is 0.128λ low （λ low For wavelengths in free space at the lowest operating frequency of the antenna), at high frequency points, the horizontal plane pattern is severely degraded, with out-of-roundness greater than 5dB.
Disclosure of Invention
The invention aims at: the defects of the prior art are overcome, the ultra-wideband low-profile vertical polarization omnidirectional antenna applied to the indoor subsystem is provided, and the problems that the conventional ultra-wideband vertical polarization omnidirectional antenna is large in profile size and the prescription pattern of a high-frequency point is deteriorated are effectively solved.
The invention provides an ultra-wideband low-profile vertical polarization omnidirectional antenna applied to a room subsystem, which comprises a metal disc, a radiation arm and a metal floor, wherein an SMA head is inserted upwards from a central hole of the metal floor, an inner conductor of the SMA head is connected with an inner end of the radiation arm, an outer conductor of the SMA head is connected with the metal floor, and the metal disc is supported above the metal floor through a radiation arm support in an empty space, and the ultra-wideband low-profile vertical polarization omnidirectional antenna is characterized in that: the radiation arms comprise long straight radiation arms and wave-folded radiation arms which are alternately arranged in a radial shape; the outer end of the long straight radiation arm is fixedly connected with the metal disc; the top of the wave-folding type radiation arm is fixedly connected with the metal disc, the bottom of the outer end of the wave-folding type radiation arm is connected with the metal floor, and the part inside the outer end of the wave-folding type radiation arm is suspended above the metal floor.
The invention is applied to an ultra-wideband low-profile vertical polarization omnidirectional antenna of a room subsystem, the combination of the wave-folded radiation arm and the metal disc at the top reduces the height of the antenna to meet the application requirement of low profile, and the profile height is only 5.4% of the vacuum wavelength at the lowest working frequency; the long straight radiation arm can generate a resonance point at a high-frequency point, and the resonance point is combined with the resonance point generated by the wave-folded radiation arm, so that the bandwidth of the antenna is expanded; the radiating arms also act as support members for the top metal disc.
Six arc-shaped grooves are etched on the metal floor, so that the problem of radiation performance deterioration of the ultra-wideband antenna at a high frequency point can be solved, and the stability of a directional diagram of the antenna in the whole working frequency band is ensured; the outermost end of the metal floor is bent upward and inward, so that the planar size of the antenna can be reduced while realizing a low profile and without affecting the performance of the antenna.
Furthermore, the invention also claims an antenna, characterized in that: the ultra-wideband low-profile vertically polarized omnidirectional antenna comprises the ultra-wideband low-profile vertically polarized omnidirectional antenna applied to a room subsystem.
Drawings
Fig. 1 is a perspective view of an ultra-wideband low-profile vertically polarized omnidirectional antenna for use in a room subsystem in accordance with the present invention;
fig. 2 is a front view of an ultra-wideband low-profile vertically polarized omnidirectional antenna for use in a chamber subsystem in accordance with the present invention;
fig. 3 is a top view of a metal floor of an ultra-wideband low-profile vertically polarized omnidirectional antenna for use in a room subsystem in accordance with the present invention;
FIG. 4 is a graph of reflection coefficient and gain for an ultra-wideband low profile vertically polarized omnidirectional antenna for use in a chamber subsystem in accordance with the present invention;
fig. 5 is a diagram of an ultra-wideband low-profile vertically polarized omnidirectional antenna at a frequency of 2.2GHz for use in a indoor subsystem in accordance with the present invention;
fig. 6 is a diagram of an ultra-wideband low-profile vertically polarized omnidirectional antenna at a frequency of 3.5GHz for use in a indoor subsystem in accordance with the present invention;
fig. 7 is a diagram of an ultra-wideband low-profile vertically polarized omnidirectional antenna at a frequency of 4.8GHz for use in a indoor subsystem in accordance with the present invention;
in the drawings, 1-a metal disc; 2-radiating arms; 3-metal floor; 21-corrugated metal arms; 22-long straight metal arms; 31-arc grooves; 32-central aperture.
Detailed Description
The invention is further explained in the following detailed description with reference to the drawings so that those skilled in the art can more fully understand the invention and can practice it, but the invention is explained below by way of example only and not by way of limitation.
Referring to fig. 1 to 3, which are perspective views showing the structure of an ultra wideband low profile vertically polarized omnidirectional antenna applied to a room subsystem according to the present invention, the antenna comprises a metal disc 1, a radiation arm 2 and a metal floor 3, an SMA head is inserted upward from a central hole 32 of the metal floor 3, an inner conductor of the SMA head is connected to an inner end of the radiation arm 2, an outer conductor of the SMA head is connected to the metal floor 3, and the metal disc 1 is supported overhead above the metal floor 3 by the radiation arm 2. The metal disc 1 and the metal floor 3 are circular in shape, and the centers of the two circles are positioned on the same vertical line. The central hole 32 of the metal floor 3 is provided with a feed port through which the SMA head is fixed. The metal disc 1, the radiation arm 2 and the metal floor 3 are made of copper, and form an integral structure through a 3D printing technology.
In the present embodiment, the radiation arm 2 includes three long straight radiation arms 22 and three wave-folded radiation arms 21. Wherein the long straight radiating arms 22 and the wave-folding radiating arms 21 are alternately arranged in a radial shape, and the included angle between the adjacent long straight radiating arms 22 and the wave-folding radiating arms 21 is 60 degrees. The outer end of the long straight radiating arm 22 is upwarped and fixedly connected with the metal disc 1, and the inner end of the long straight radiating arm 22 is connected with the inner conductor of the SMA head. The long straight radiating arm 22 is used to create a resonance point at the high frequency point to extend the antenna bandwidth. The corrugated radiating arm 21 is formed by bending a rectangular metal sheet several times, and the number of times and the angle of bending can be adjusted according to the antenna performance (antenna impedance matching). The top of the wave-folded radiating arm 21 is fixedly connected with the metal disc 1, the bottom of the outer end of the wave-folded radiating arm 21 is connected with the metal floor 3, the inner end of the wave-folded radiating arm 21 is connected with the inner conductor of the SMA head, and the part inside the outer end of the wave-folded radiating arm 21 is suspended above the metal floor 3, namely a gap is formed between the bottom of the part inside the outer end of the wave-folded radiating arm 21 and the metal floor 3.
As shown in fig. 1, the metal floor 3 is provided with six arc grooves 31, the arc grooves 31 are located on the outer side of the radiation arm 2 in one-to-one correspondence, and the circle center of the arc grooves 31 and the circle center of the metal floor 3 are located on the same vertical line. The six arc-shaped grooves 31 can effectively solve the problem of radiation performance degradation of the ultra-wideband antenna at a high frequency point, thereby ensuring the stability of the antenna pattern in the whole working frequency band. The outermost end of the metal floor 3 is bent upward and inward for reducing the planar size of the antenna to 0.82λ low （λ low Wavelength in free space at the lowest operating frequency of the antenna).
The metal disc 1 prolongs the current path on the radiating arm 2, and the three corrugated radiating arms 21 are combined with the metal disc 1, so that the antenna section height is reduced; three long straight radiating arms 22 are used to create a resonance point at the high frequency point to extend the antenna bandwidth. The cross-sectional dimension of the antenna is only 0.054λ low The defect of large cross section size commonly existing in the existing similar antennas is overcome to a great extent.
The embodiment of the invention optimizes the size of each part of the antenna, and the specific parameters of the antenna are shown in the following table:
| parameters (parameters) | r 1 | r 2 | r 3 | r 4 | t | l 1 | l 2 |
| Value of | 32.30mm | 73.21mm | 9.96mm | 35.06mm | 0.8mm | 27.79mm | 28.92mm |
| Parameters (parameters) | w 1 | w 2 | w 3 | h 1 | h 2 | h 3 | α |
| Value of | 1.43mm | 2.10mm | 5.02mm | 4.93mm | 3.954mm | 1.90mm | 37.43° |
In the table of the present invention,r 1 is the radius of the metal disc 1,r 2 is the radius of the metal floor 3,r 3 is the width of the inward bend of the metal floor 3,r 4 the distance of the arc-shaped groove 31 from the center, t is the thickness of the metal disc 1 and the metal floor 3,l 1 for the projected length of the corrugated radiating arm 21,l 2 for the projected length of the long straight radiating arm 22,w 1 for the width of the corrugated radiating arm 21,w 2 is the width of the long straight radiating arm 22,w 3 is the width of the arcuate slot 31,h 1 for the distance between the metal disc 1 and the metal floor 3,h 2 at a height where the metal floor 3 is upwardly bent,h 3 for the distance between the bottom of the inner end of the corrugated radiating arm 21 and the metal floor 3,αis the angle of the arcuate slot 31. In addition, the wave foldsThe thickness of the radiating arm 21 is 1.91mm and the thickness of the long straight radiating arm 22 is 1.78mm.
Fig. 4 shows a reflection coefficient and gain curve diagram of an ultra-wideband low-profile vertically polarized omnidirectional antenna applied to a room subsystem, and the result shows that the relative bandwidth of the design is 105.22% (1.68-5.41 GHz), and the gain in the working frequency band is between 3.8dBi and 8 dBi.
Fig. 5, 6 and 7 show the radiation pattern of the antenna at three different frequency points. The result shows that the directional diagram of the design in the working frequency band has good consistency, particularly at a high frequency point, the directional diagram also has good omnidirectionality, and the omnidirectional radiation performance in the whole working frequency band is good.
In addition, the invention also discloses an antenna, which comprises the ultra-wideband low-profile vertical polarization omnidirectional antenna applied to the indoor subsystem.
While the foregoing is directed to embodiments of the present invention, other and further details of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (10)
1. The utility model provides an be applied to room subsystem's ultra wide band low profile vertical polarization omnidirectional antenna, includes metal disc (1), radiation arm (2) and metal floor (3), and an SMA head inserts upwards from metal floor (3) centre bore (32), and the inner conductor of SMA head links to each other with the inner of radiation arm (2), and the outer conductor of SMA head links to each other with metal floor (3), metal disc (1) is supported in metal floor (3) top through radiation arm (2) overhead ground, its characterized in that: the radiating arms (2) comprise long straight radiating arms (22) and wave-folded radiating arms (21) which are alternately arranged in a radial shape; the outer end of the long straight radiation arm (22) is fixedly connected with the metal disc (1); the top of the wave-folding type radiation arm (21) is fixedly connected with the metal disc (1), the bottom of the outer end of the wave-folding type radiation arm (21) is connected with the metal floor (3), and the part inside the outer end of the wave-folding type radiation arm (21) is suspended above the metal floor (3).
2. An ultra wideband low profile vertically polarized omnidirectional antenna for a chamber subsystem as recited in claim 1, wherein: the metal disc (1) and the metal floor (3) are circular in shape, and the centers of the two circles are positioned on the same vertical line.
3. An ultra wideband low profile vertically polarized omnidirectional antenna for a chamber subsystem as recited in claim 1, wherein: the wave-folded radiating arm (21) is formed by bending a cuboid metal sheet for a plurality of times, and the wave-folded radiating arm (21) is combined with the metal disc (1) and is used for reducing the section height of the antenna; the long straight radiating arm (22) generates a resonance point at a high frequency point, and is combined with the resonance point generated by the wave-folded radiating arm to expand the bandwidth of the antenna.
4. An ultra wideband low profile vertically polarized omnidirectional antenna for a chamber subsystem as recited in claim 1, wherein: the metal floor (3) is provided with arc-shaped grooves (31) which are located on the outer side of the radiation arm (2) in a one-to-one correspondence mode, and the circle center of the arc-shaped grooves (31) and the circle center of the metal floor (3) are located on the same vertical line and used for improving radiation performance of high-frequency points so as to ensure stability of the directional diagram of the antenna in the whole working frequency band.
5. An ultra wideband low profile vertically polarized omnidirectional antenna for a chamber subsystem as recited in claim 1, wherein: the outer end of the metal floor (3) is bent upward and inward for reducing the planar size of the antenna while achieving a low profile and not affecting the antenna performance.
6. An ultra wideband low profile vertically polarized omnidirectional antenna for a chamber subsystem as recited in claim 1, wherein: the number of the long straight radiating arms (22) and the corrugated radiating arms (21) is 3, and the included angle between the adjacent long straight radiating arms (22) and the corrugated radiating arms (21) is 60 degrees.
7. An ultra wideband low profile vertically polarized omnidirectional antenna for a chamber subsystem as recited in claim 1, wherein: and a feeding port is arranged at the central hole (32) of the metal floor (3), and the SMA head is fixed through the feeding port.
8. An ultra wideband low profile vertically polarized omnidirectional antenna for a chamber subsystem as recited in claim 1, wherein: the bending times and the bending angles of the corrugated radiating arms (21) are adjusted according to the impedance matching of the antenna.
9. An ultra wideband low profile vertically polarized omnidirectional antenna for a chamber subsystem as recited in claim 1, wherein: the metal disc (1), the radiation arm (2) and the metal floor (3) are made of copper, and an integral structure is formed through a 3D printing technology.
10. An antenna, characterized in that: an ultra wideband low profile vertically polarized omnidirectional antenna comprising a device as recited in claims 1-9 for use in a chamber subsystem.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310982592.0A CN116914427B (en) | 2023-08-07 | 2023-08-07 | Ultra-wideband low-profile vertical polarization omnidirectional antenna applied to indoor subsystem |
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| CN202310982592.0A CN116914427B (en) | 2023-08-07 | 2023-08-07 | Ultra-wideband low-profile vertical polarization omnidirectional antenna applied to indoor subsystem |
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| CN116914427B CN116914427B (en) | 2024-03-15 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201741799U (en) * | 2010-08-21 | 2011-02-09 | 吴建锋 | Low profile on-board comprehensive hole diameter navigation antenna |
| WO2015109995A1 (en) * | 2014-01-21 | 2015-07-30 | Supeq(Nanjing) Communication Technologies Co., Ltd. | Vertically polarized omni-directional antenna and 4g dual polarized omni-directional ceiling antenna having the same |
| CN109687132A (en) * | 2018-12-28 | 2019-04-26 | 西安交通大学 | A kind of low section vertical polarization ultra-wideband omni-directional antenna |
| CN110350308A (en) * | 2019-07-15 | 2019-10-18 | 重庆大学 | A kind of ultra wide band low section vertical depolarized omnidirectional antenna and its trap design |
| CN210628485U (en) * | 2019-08-15 | 2020-05-26 | 深圳市鼎耀科技有限公司 | Low-profile ultra-wideband omnidirectional antenna |
| CN112086738A (en) * | 2019-06-14 | 2020-12-15 | 中国移动通信集团设计院有限公司 | Omnidirectional indoor division MIMO antenna |
| CN112768885A (en) * | 2020-12-17 | 2021-05-07 | 深圳市南斗星科技有限公司 | Indoor distributed antenna |
| CN113851826A (en) * | 2021-09-30 | 2021-12-28 | 广东中元创新科技有限公司 | Single-polarization low-out-of-roundness indoor distributed antenna |
| CN114336059A (en) * | 2022-01-07 | 2022-04-12 | 电子科技大学 | Low-profile miniaturized tunable antenna applied to VHF/UHF frequency band |
-
2023
- 2023-08-07 CN CN202310982592.0A patent/CN116914427B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201741799U (en) * | 2010-08-21 | 2011-02-09 | 吴建锋 | Low profile on-board comprehensive hole diameter navigation antenna |
| WO2015109995A1 (en) * | 2014-01-21 | 2015-07-30 | Supeq(Nanjing) Communication Technologies Co., Ltd. | Vertically polarized omni-directional antenna and 4g dual polarized omni-directional ceiling antenna having the same |
| CN109687132A (en) * | 2018-12-28 | 2019-04-26 | 西安交通大学 | A kind of low section vertical polarization ultra-wideband omni-directional antenna |
| CN112086738A (en) * | 2019-06-14 | 2020-12-15 | 中国移动通信集团设计院有限公司 | Omnidirectional indoor division MIMO antenna |
| CN110350308A (en) * | 2019-07-15 | 2019-10-18 | 重庆大学 | A kind of ultra wide band low section vertical depolarized omnidirectional antenna and its trap design |
| CN210628485U (en) * | 2019-08-15 | 2020-05-26 | 深圳市鼎耀科技有限公司 | Low-profile ultra-wideband omnidirectional antenna |
| CN112768885A (en) * | 2020-12-17 | 2021-05-07 | 深圳市南斗星科技有限公司 | Indoor distributed antenna |
| CN113851826A (en) * | 2021-09-30 | 2021-12-28 | 广东中元创新科技有限公司 | Single-polarization low-out-of-roundness indoor distributed antenna |
| CN114336059A (en) * | 2022-01-07 | 2022-04-12 | 电子科技大学 | Low-profile miniaturized tunable antenna applied to VHF/UHF frequency band |
Non-Patent Citations (1)
| Title |
|---|
| ZHAN WANG ET AL.: "Hybrid Metamaterial-TL-Based, Low-Profile, Dual-Polarized Omnidirectional Antenna for 5G Indoor Application", 《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION ( VOLUME: 70, ISSUE: 4, APRIL 2022)》 * |
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| CN116914427B (en) | 2024-03-15 |
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