CN115528433A - Ultra-wideband multiple-input multiple-output antenna - Google Patents
Ultra-wideband multiple-input multiple-output antenna Download PDFInfo
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- CN115528433A CN115528433A CN202211342463.7A CN202211342463A CN115528433A CN 115528433 A CN115528433 A CN 115528433A CN 202211342463 A CN202211342463 A CN 202211342463A CN 115528433 A CN115528433 A CN 115528433A
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- 230000005855 radiation Effects 0.000 claims abstract description 42
- 239000000758 substrate Substances 0.000 claims description 23
- 230000005284 excitation Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 230000007704 transition Effects 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract description 2
- 238000002955 isolation Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding 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
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
-
- 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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/04—Multimode antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/25—Ultra-wideband [UWB] systems, e.g. multiple resonance systems; Pulse systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses an ultra wide band multiple input multiple output antenna, which relates to the technical field of ultra wide band antennas and aims to solve the problem of the frequency range of an MIMO antenna. The rectangular structure with the groove is used as a radiation patch, and the characteristic that the groove is formed in the radiation patch effectively expands the bandwidth of the antenna and reduces the size of the antenna; and a 'w' structure and a superposed 'w' structure are dug at the bottom of the antenna, so that the performance of the antenna is further improved, the manufacturing material is saved, and the compactness and the broadband of the antenna are realized. The antenna has the advantages of compactness, wide bandwidth, simple structure, good radiation characteristic, strong anti-interference capability and the like, adopts a simple rectangular grounding plate structure, can generate resonance characteristic, and enables the antenna to generate stable transition from one resonance mode to another resonance mode, thereby further improving the performance of the antenna, adopts a planar structure, has small size, has an integral structure of only 38 x 26 x 1.2mm3, has compact structure, and is convenient to realize the integration with a radio frequency front-end circuit.
Description
Technical Field
The invention relates to the technical field of ultra-wideband antennas, in particular to an ultra-wideband multiple-input multiple-output antenna.
Background
In recent years, with the rise of smart homes and home digital entertainment centers, various wireless access technologies have been rapidly developed. Ultra-wideband communication systems have attracted attention from researchers because of their advantages of high data transmission rates, low complexity, low cost, and high accuracy. However, in ultra-wideband antenna design, simultaneous multipath input and output is required.
Disclosure of Invention
In order to solve the above problems, that is, the problems of the background art, the present invention provides an ultra wide band multiple input multiple output antenna, which includes a dielectric substrate, a pair of radiation patches, a pair of microstrip feed lines and a ground plate, wherein the pair of radiation patches and the pair of microstrip feed lines are symmetrically printed on the front surface of the dielectric substrate, the ground plate is printed on the back surface of the dielectric substrate, the microstrip feed line is directly connected to the bottom of the radiation patches, the microstrip feed line is composed of a ladder structure formed by stacking a plurality of rectangles, and the microstrip feed line feeds power to the ground plate through an excitation port;
the radiation patch is of a rectangular structure with a notch, the two sides of the bottom of the radiation patch are respectively dug to form a w-shaped structure and a superposed w-shaped structure, and the overall structure of the grounding plate is I-shaped.
The invention is further provided with: the notch of the radiation patch is a rectangle with the length of 1.1mm and the width of 0.81mm, and the distance between the notch and the w structure is 3.6-4.1mm.
The invention is further provided with: the horizontal width of the w structure is 2.1-2.5mm, the vertical height of the w structure is 1.9-2.4mm, the horizontal width of the superposed w structure is 1.6-2.1mm, and the vertical height of the superposed w structure is 2.8-3.2mm.
The invention is further provided with: the microstrip feeder line is a microstrip feeder line with characteristic impedance of 50 omega, the length of the microstrip feeder line is 10.1-10.6mm, the width of the microstrip feeder line is 2.1-2.4mm, the length and the width of a rectangle of the microstrip feeder line close to the edge of the substrate are 8.1-8.6mm and 2.31mm respectively, the length and the width of a middle rectangle of the microstrip feeder line are 0.5-0.8mm and 1.1-1.6mm respectively, and the length and the width of a rectangle of the microstrip feeder line close to the center of the substrate are 1.1-1.5mm and 0.3-0.6mm respectively.
The invention is further provided with: the horizontal length and the vertical height of a rectangle at the lowest position in the grounding plates are respectively 37.8-38.2mm and 8.9-9.4mm, the horizontal length and the vertical height of a rectangle at the middle position in the grounding plates are respectively 6.8-7.4mm and 13.5-14mm, and the horizontal length and the vertical height of a rectangle at the upper position of the grounding plates are respectively 17.8-18.3mm and 2.8-3.3mm.
The invention is further provided with: the thickness of the dielectric substrate is 1.2mm, and the length and the width of the dielectric substrate are 26mm and 38mm respectively.
The beneficial technical effects of the invention are as follows: the rectangular structure with the groove is used as a radiation patch, and the characteristic that the groove is formed in the radiation patch effectively expands the bandwidth of the antenna and reduces the size of the antenna; and a 'w' structure and a superposed 'w' structure are dug at the bottom of the antenna, so that the performance of the antenna is further improved, the manufacturing material is saved, and the compactness and the broadband of the antenna are realized. The antenna has the advantages of compactness, wide bandwidth, simple structure, good radiation characteristic, strong anti-interference capability and the like, adopts a simple rectangular grounding plate structure, can generate resonance characteristic, and enables the antenna to generate stable transition from one resonance mode to another resonance mode, thereby further improving the performance of the antenna, adopts a planar structure, has small size, has an integral structure of only 38 x 26 x 1.2mm3, has compact structure, and is convenient to realize the integration with a radio frequency front-end circuit.
Drawings
Fig. 1 shows a schematic front view of the present invention.
Fig. 2 shows a schematic side view of the present invention.
Fig. 3 shows a back side structure diagram of the present invention.
Figure 4 shows a return loss plot of the present invention.
Figure 5 shows an isolation graph of the present invention.
Fig. 6 shows the radiation pattern of the present invention at the frequency point of 3.45 GHz.
Figure 7 shows the radiation pattern of the present invention at the 5.5GHz frequency point.
Fig. 8 shows the radiation pattern of the present invention at the frequency point of 7.5 GHz.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
The invention provides an ultra-wideband multiple-input multiple-output (UWB-MIMO) antenna, which comprises a medium substrate 10, a radiation patch 20, a microstrip feeder 30 and a ground plate 40, wherein the radiation patch 20 and the microstrip feeder 30 are printed on the front surface of the medium substrate 10, the ground plate 40 is printed on the back surface of the medium substrate 10, a stepped structure 31 of the microstrip feeder 30 is directly connected with the bottom of the radiation patch 20, the microstrip feeder 30 is fed with the ground plate 40 through an excitation port, the radiation patch 20 is of a rectangular structure with a notch, and as shown in figure 1, a 'w' structure 22 and a superposed 'w' structure 21 are respectively dug at the bottom of the radiation patch 20.
The microstrip feeder line 30 is a microstrip feeder line with a characteristic impedance of 50 omega, the length of the microstrip feeder line 30 is 10.3mm, the width of the microstrip feeder line 30 is 2.31mm, the bottom of the radiation patch 20 is connected with a step structure 31 in the microstrip feeder line 30 with a characteristic impedance of 50 omega, the length of a rectangle at the lowest part of the microstrip feeder line 30 is 10.1-10.6mm, the width of the rectangle is 2.31mm, and preferably, the length of the microstrip feeder line 30 is 10.3mm. The microstrip line with 50 ohms is adopted for feeding, good bandwidth characteristics are achieved by adjusting parameters such as the width and the length of the microstrip line and the distance between the microstrip line and a feeding port, and the adjusting process is flexible.
The horizontal length of the rectangle at the lowest position of the grounding plates 40 is 37.8-38.2mm, the vertical height is 8.9-9.4mm, the horizontal length of the rectangle at the middle position of the grounding plates 40 is 6.8-7.4mm, the vertical height is 13.5-14mm, the horizontal length of the rectangle at the upper position of the grounding plates 40 is 17.8-18.3mm, the vertical height is 2.8-3.3mm, the thickness of the dielectric substrate 10 is 1.2mm, the length and the width of the dielectric substrate 10 are respectively 26mm and 38mm, the grounding plates 40 are printed at the lower side of the back surface of the dielectric substrate 10, the position of the rectangular grounding plates 40 is shown in figures 2-3, the horizontal length of the rectangle at the lowest position of the grounding plates (40) is 38mm, the vertical height is 9.2mm, the horizontal length of the rectangle at the middle position of the grounding plates (40) is 7.15mm, the vertical height is 13.8mm, the horizontal length of the rectangle at the upper position of the grounding plates (40) is 18mm, and the vertical height is 3mm. The structure of the ground plate 40 with the T-shaped structure can generate resonance characteristics, so that the antenna can generate smooth transition from one resonance mode to another resonance mode, thereby further improving the isolation and performance of the antenna.
The ultra-wideband antenna in the embodiment is printed on a dielectric substrate 10 made of FR4 epoxy resin material with the length, width and thickness of 26mm, 38mm and 1.2mm respectively, the relative dielectric constant of the dielectric substrate 10 is 4.4, and the dielectric loss tangent value is 0.024.
In order to further illustrate the good performance of the ultra-wideband multiple-input multiple-output antenna, the invention is subjected to modeling simulation of radio frequency characteristics by using electromagnetic simulation software HFSS 21.0.
Referring to fig. 4, the return loss of the ultra-wideband multiple-input multiple-output antenna of the invention is less than-10 dB, the isolation is less than-15 dB, the bandwidth is 3.09-14GHz, the ultra-wideband frequency range specified by FCC is completely satisfied, and the ultra-wideband characteristic can be well realized.
Referring to fig. 5, the ultra-wideband MIMO antenna of the present invention has a bandwidth of 3.09 GHz to 14GHz with an isolation less than-15 dB, completely meets the coupling condition of a multiple-input multiple-output (MIMO) antenna, and can well realize the MIMO characteristic.
Referring to fig. 6, a radiation pattern of the ultra-wideband mimo antenna at 3.45GHz in the embodiment of the present invention is provided, and as can be seen from fig. 6, an E plane pattern of the antenna presents directional radiation in the shape of a "8", and an H plane pattern of the antenna approaches a circle, and presents an omnidirectional radiation characteristic.
Referring to fig. 7, a radiation pattern of the ultra-wideband mimo antenna at 3.45GHz in the embodiment of the present invention is provided, and as can be seen from fig. 6, an E-plane pattern of the antenna exhibits directional radiation in the shape of a "8", and an H-plane pattern of the antenna is close to a circle, and exhibits omnidirectional radiation characteristics.
Referring to fig. 8, a radiation pattern of the ultra-wideband mimo antenna at 3.45GHz in the embodiment of the present invention is provided, and as can be seen from fig. 6, an E-plane pattern of the antenna exhibits directional radiation in the shape of a "8", an H-plane pattern of the antenna is close to a circle, and exhibits omnidirectional radiation characteristics, and the antenna has good omnidirectional radiation characteristics in the entire passband frequency band.
The simulation analysis shows that the bandwidth of the antenna is 3.09-14GHz, the working bandwidth completely meets the ultra-wideband frequency range of 3.1-10.6GHz, the isolation degree in the pass band is less than-15 dB, and the UWB-MIMO antenna has basically stable peak gain and omnidirectional radiation characteristics, so that the UWB-MIMO antenna has very high practical value.
The above embodiments have the advantages of wide bandwidth, compact and simple structure, good radiation performance, strong anti-interference performance, stable performance and the like, and realize the communication of the ultra-wideband MIMO system. The rectangular structure with the notch is adopted as the radiation patch 20, the basic structure of MIMO communication is realized, and the expansion of the antenna bandwidth is realized by chamfering the radiation patch 20. The w structure 22 and the superposed w structure 21 are respectively dug at two sides of the bottom of the radiation patch 20, so that the distribution characteristic of the current on the surface of the antenna is changed, the current path on the surface of the antenna is increased, and the low-frequency bandwidth is expanded. The antenna ground plate 40 of the invention adopts a T-shaped decoupling structure, has a simple structure, good decoupling effect, convenient processing and convenient production, simultaneously shows good performance of the antenna, has higher practical value and can be applied to various ultra wide band multiple input multiple output communication systems.
While the invention has been described with reference to a preferred embodiment, various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention, and particularly, features may be combined in any suitable manner as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings, which are for convenience of description only, and do not indicate or imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is apparent to those skilled in the art that the scope of the present invention is not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (6)
1. An ultra-wideband multiple-input multiple-output antenna comprising a dielectric substrate (10), a pair of radiating patches (20), a pair of microstrip feed lines (30) and a ground plane (40), characterized in that: the pair of radiation patches (20) and the pair of microstrip feed lines (30) are symmetrically printed on the front surface of the dielectric substrate (10), the ground plate (40) is printed on the back surface of the dielectric substrate (10), the microstrip feed lines (30) are directly connected with the bottoms of the radiation patches (20), each microstrip feed line (30) is composed of a stepped structure (31) formed by overlapping a plurality of rectangles, and each microstrip feed line (30) feeds power with the ground plate (40) through an excitation port;
the radiation patch (20) is of a rectangular structure with a notch, the w-shaped structure (22) and the superposed w-shaped structure (21) are respectively dug out of two sides of the bottom of the radiation patch (20), and the overall structure of the grounding plate (40) is I-shaped.
2. An ultra-wideband multiple-input-multiple-output antenna according to claim 1, wherein: the notch of the radiation patch (20) is rectangular with a length of 1.1mm and a width of 0.81mm, the notch being spaced from the "w" structure (22) by 3.6-4.1mm.
3. An ultra-wideband multiple-input-multiple-output antenna according to claim 1, wherein: the horizontal width of the w-shaped structure (22) is 2.1-2.5mm, the vertical height of the w-shaped structure (22) is 1.9-2.4mm, the horizontal width of the superposed w-shaped structure (21) is 1.6-2.1mm, and the vertical height of the superposed w-shaped structure (21) is 2.8-3.2mm.
4. An ultra-wideband multiple-input-multiple-output antenna according to claim 1, wherein: the microstrip feeder line (30) is a microstrip feeder line with characteristic impedance of 50 omega, the length of the microstrip feeder line (30) is 10.1-10.6mm, the width of the microstrip feeder line (30) is 2.1-2.4mm, the length and the width of a rectangle of the microstrip feeder line (30) close to the edge of the substrate (10) are 8.1-8.6mm and 2.31mm respectively, the length and the width of a middle rectangle of the microstrip feeder line (30) are 0.5-0.8mm and 1.1-1.6mm respectively, and the length and the width of a rectangle of the microstrip feeder line (30) close to the center of the substrate (10) are 1.1-1.5mm and 0.3-0.6mm respectively.
5. The ultra-wideband multiple-input multiple-output antenna of claim 1, wherein: the horizontal length and the vertical height of a rectangle at the lowest part in the grounding plates (40) are respectively 37.8-38.2mm and 8.9-9.4mm, the horizontal length and the vertical height of a rectangle at the middle part in the grounding plates (40) are respectively 6.8-7.4mm and 13.5-14mm, and the horizontal length and the vertical height of a rectangle at the upper part in the grounding plates (40) are respectively 17.8-18.3mm and 2.8-3.3mm.
6. The ultra-wideband multiple-input multiple-output antenna of claim 1, wherein: the thickness of the dielectric substrate (10) is 1.2mm, and the length and the width of the dielectric substrate (10) are 26mm and 38mm respectively.
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| CN202211342463.7A CN115528433A (en) | 2022-10-31 | 2022-10-31 | Ultra-wideband multiple-input multiple-output antenna |
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| CN202211342463.7A CN115528433A (en) | 2022-10-31 | 2022-10-31 | Ultra-wideband multiple-input multiple-output antenna |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090120282A (en) * | 2008-05-19 | 2009-11-24 | 인하대학교 산학협력단 | Ultra-wideband planar monopole antenna with an inverted t-shaped parasitic patch |
| CN204011710U (en) * | 2014-07-30 | 2014-12-10 | 江苏省邮电规划设计院有限责任公司 | A kind of dual-attenuation sipes ultra-wideband antenna |
| CN104681950A (en) * | 2013-11-27 | 2015-06-03 | 哈尔滨黑石科技有限公司 | Ultra wide band antenna with trapped wave features |
| CN104934703A (en) * | 2015-06-29 | 2015-09-23 | 天津大学 | Ultra-broadband antenna capable of shielding various narrowband signal interferences |
| CN205863401U (en) * | 2016-05-11 | 2017-01-04 | 安费诺（常州）高端连接器有限公司 | A kind of broadband trap antenna |
| CN206673107U (en) * | 2017-04-07 | 2017-11-24 | 深圳市景程信息科技有限公司 | Utilize three Mould Breadth band step type slot antennas of feed microstrip line |
| CN206727220U (en) * | 2017-05-26 | 2017-12-08 | 华东交通大学 | It is a kind of based on microstrip-fed miniature ultra wide band mimo antenna |
| CN110474161A (en) * | 2019-09-29 | 2019-11-19 | 集美大学 | A kind of ultra-wideband antenna of gap loaded microstrip structure |
| CN113078465A (en) * | 2021-03-08 | 2021-07-06 | 电子科技大学 | Dual-port ultra-wideband MIMO antenna capable of realizing wideband decoupling |
-
2022
- 2022-10-31 CN CN202211342463.7A patent/CN115528433A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090120282A (en) * | 2008-05-19 | 2009-11-24 | 인하대학교 산학협력단 | Ultra-wideband planar monopole antenna with an inverted t-shaped parasitic patch |
| CN104681950A (en) * | 2013-11-27 | 2015-06-03 | 哈尔滨黑石科技有限公司 | Ultra wide band antenna with trapped wave features |
| CN204011710U (en) * | 2014-07-30 | 2014-12-10 | 江苏省邮电规划设计院有限责任公司 | A kind of dual-attenuation sipes ultra-wideband antenna |
| CN104934703A (en) * | 2015-06-29 | 2015-09-23 | 天津大学 | Ultra-broadband antenna capable of shielding various narrowband signal interferences |
| CN205863401U (en) * | 2016-05-11 | 2017-01-04 | 安费诺（常州）高端连接器有限公司 | A kind of broadband trap antenna |
| CN206673107U (en) * | 2017-04-07 | 2017-11-24 | 深圳市景程信息科技有限公司 | Utilize three Mould Breadth band step type slot antennas of feed microstrip line |
| CN206727220U (en) * | 2017-05-26 | 2017-12-08 | 华东交通大学 | It is a kind of based on microstrip-fed miniature ultra wide band mimo antenna |
| CN110474161A (en) * | 2019-09-29 | 2019-11-19 | 集美大学 | A kind of ultra-wideband antenna of gap loaded microstrip structure |
| CN113078465A (en) * | 2021-03-08 | 2021-07-06 | 电子科技大学 | Dual-port ultra-wideband MIMO antenna capable of realizing wideband decoupling |
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