CN111129733B - Ultra-wideband 5G ceiling antenna - Google Patents
Ultra-wideband 5G ceiling antenna Download PDFInfo
- Publication number
- CN111129733B CN111129733B CN201911367356.8A CN201911367356A CN111129733B CN 111129733 B CN111129733 B CN 111129733B CN 201911367356 A CN201911367356 A CN 201911367356A CN 111129733 B CN111129733 B CN 111129733B
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- vibrator
- conical
- oscillator
- ceiling antenna
- radiator
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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
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/364—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith using a particular conducting material, e.g. superconductor
-
- 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
Abstract
The invention discloses an ultra wide band 5G ceiling antenna, which comprises a radiator and a feed cable, wherein the radiator comprises a lower oscillator and an upper oscillator; the upper vibrator comprises a circular tube-shaped vibrator, an upper conical vibrator and a conical frustum vibrator, the bottom end of the upper conical vibrator is connected with one end part of the circular tube-shaped vibrator, the middle part of the conical frustum vibrator is provided with a sleeve hole, and the conical frustum vibrator is sleeved on the outer surface of a cone of the conical vibrator through the sleeve hole; according to the technical scheme, on the basis of ensuring the miniaturization of the ceiling antenna, the relative bandwidth of the ceiling antenna can reach 160% effectively by adopting technologies such as asymmetric cone loading radiator, special electroplating treatment of the radiator and the like, the whole UHF frequency band is covered, and 20W input intermodulation reaches more than 153 dBc; meanwhile, aluminum with the thickness of 1mm is used as a radiator, so that the structure of the ceiling antenna is simplified, the weight is correspondingly lightened, and the performance of the antenna is ensured.
Description
Technical Field
The invention relates to a ceiling antenna, in particular to an ultra wide band 5G ceiling antenna.
Background
The indoor ceiling antenna is one kind of mobile communication system antenna and is used mainly for indoor signal coverage. The existing indoor coverage ceiling antenna has an average frequency band of 820-2700 MHz, the structure and the size of the indoor coverage ceiling antenna are basically not different, the indoor coverage ceiling antenna is limited by the requirement of the frequency band, the size of the whole ceiling antenna is larger, or the ceiling antenna is set to be small in diameter and high in height, or set to be large in diameter and low in height, but the height and the diameter cannot be simultaneously reduced, and the miniaturization of the volume of the ceiling antenna is not facilitated.
The existing indoor covering ceiling antenna requires intermodulation requirements of 5W and 10W, and the ceiling antenna generally has a complex structure and higher manufacturing cost to realize the intermodulation requirements, but the indoor covering ceiling antenna with the complex structure cannot stably pass the requirement of 20W 153 dBc.
Disclosure of Invention
The invention aims to provide an ultra wide band 5G ceiling antenna, and aims to solve the problems that the height and the diameter of the existing indoor coverage ceiling antenna cannot be simultaneously reduced under the requirement of a certain uniform frequency band, and the ceiling antenna is not beneficial to volume miniaturization.
The technical scheme of the invention is as follows: an ultra-wideband 5G ceiling antenna comprises a radiator and a feed cable, wherein the radiator comprises a lower oscillator and an upper oscillator, the feed cable penetrates through the lower oscillator and is connected with the upper oscillator for feeding, and the feed cable is connected with a power supply through a connector; the upper vibrator comprises a circular tube-shaped vibrator, an upper conical vibrator and a conical frustum vibrator, the bottom end of the upper conical vibrator is connected with one end of the circular tube-shaped vibrator, a sleeve hole is formed in the middle of the conical frustum vibrator, and the conical frustum vibrator is sleeved on the outer surface of a cone of the conical vibrator through the sleeve hole.
The ultra-wideband 5G ceiling antenna is characterized in that the lower oscillator is arranged in a conical shape and comprises a lower upper conical oscillator and a step surface arranged at the edge of the bottom surface of the lower upper conical oscillator, and a plurality of round holes are formed in the lower upper conical oscillator.
The ultra-wideband 5G ceiling antenna is characterized in that a copper material layer is coated on the outer surface of the upper conical oscillator, and a tin material layer is further coated on the copper material layer; the outer surface of the cone frustum-shaped vibrator is coated with a copper material layer, and the copper material layer is further coated with a tin material layer.
The ultra-wideband 5G ceiling antenna is characterized in that the cone frustum-shaped oscillator is fixed on the outer surface of the cone oscillator through soldering tin.
The ultra-wideband 5G ceiling antenna is characterized in that the radiator further comprises an outer cover and an outer cover bottom plate, the outer cover and the outer cover bottom plate are mutually matched and installed to form an installation inner cavity, and the lower oscillator and the upper oscillator are installed in the installation inner cavity.
The ultra-wideband 5G ceiling antenna is characterized in that a plastic fixing frame for fixing and insulating the lower oscillator and the upper oscillator is arranged in the mounting inner cavity, and the plastic fixing frame is arranged on the outer cover bottom plate; the middle part of the plastic fixing frame is provided with a first through hole for passing through a feed cable, and the upper end of the plastic fixing frame is clamped with the upper vibrator after passing through the through hole of the lower vibrator.
The ultra-wideband 5G ceiling antenna comprises a connecting seat and a connecting nut, wherein the outer conductor of the feed cable penetrates through an outer cover bottom plate and a plastic fixing frame and then is connected with the connecting seat in a welding mode, the connecting seat penetrates through a round hole in the top of a lower oscillator and then is connected with a connecting nut fastener, and the inner conductor of the feed cable is welded with the conical bottom of an upper conical oscillator.
The ultra wide band 5G ceiling antenna is characterized in that the radiator further comprises insulating plastic, and the insulating plastic is located between the lower oscillator and the upper oscillator.
The ultra-wideband 5G ceiling antenna is characterized in that the step surface of the lower oscillator is arranged on the bottom plate of the outer cover, and the step surface and the outer cover are fastened together through pointed screws.
The ultra-wideband 5G ceiling antenna is characterized in that the lower oscillator and the upper oscillator are made of aluminum materials with the thickness of 1 mm.
The invention has the beneficial effects that: the invention provides an ultra wide band 5G ceiling antenna, which comprises a radiator and a feed cable, wherein the radiator comprises a lower oscillator and an upper oscillator, and the feed cable penetrates through the lower oscillator and is connected with the upper oscillator for feeding; the upper vibrator comprises a circular tube-shaped vibrator, an upper conical vibrator and a conical frustum vibrator, the bottom end of the upper conical vibrator is connected with one end part of the circular tube-shaped vibrator, the middle part of the conical frustum vibrator is provided with a sleeve hole, and the conical frustum vibrator is sleeved on the outer surface of a cone of the conical vibrator through the sleeve hole; according to the technical scheme, on the basis of ensuring the miniaturization of the ceiling antenna, the relative bandwidth of the ceiling antenna can reach 160% effectively by adopting technologies such as asymmetric cone loading radiator, special electroplating treatment of the radiator and the like, the whole UHF frequency band is covered, and 20W input intermodulation reaches more than 153 dBc; meanwhile, aluminum with the thickness of 1mm is used as a radiator, so that the structure of the ceiling antenna is simplified, the weight is correspondingly lightened, and the performance of the antenna is ensured.
Drawings
Fig. 1 is a schematic structural diagram of an ultra-wideband 5G ceiling antenna in the invention.
Fig. 2 is an exploded view of an ultra-wideband 5G ceiling antenna of the present invention.
Fig. 3 is a schematic structural view of the upper vibrator in the present invention.
Fig. 4 is a schematic structural view of a truncated cone-shaped vibrator according to the present invention.
Fig. 5 is a schematic structural view of the plastic fixing frame of the present invention.
Fig. 6 is a schematic view of the structure of the lower vibrator in the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
As shown in fig. 1 to 2, an ultra wide band 5G ceiling antenna comprises a radiator and a feed cable 7, wherein the radiator comprises a lower oscillator 6 and an upper oscillator 2, the feed cable 7 passes through the lower oscillator 6 and is connected with the upper oscillator 2 for feeding, and the feed cable 7 is connected with a power supply through a connector 8; the upper vibrator 2 (shown in fig. 3 to 4) comprises a circular tube-shaped vibrator 2-1, an upper conical vibrator 2-2 and a conical frustum vibrator 2-3, the bottom end of the upper conical vibrator 2-2 is connected with the end part of one end of the circular tube-shaped vibrator 2-1, a sleeve hole is formed in the middle of the conical frustum vibrator 2-3, the conical frustum vibrator 2-3 is sleeved on the outer surface of the cone of the conical vibrator 2-2 through the sleeve hole, the upper conical vibrator 2-2 is in an inverted cone shape, and the conical frustum vibrator 2-3 is in a forward conical frustum shape. The trepanning with different sizes is arranged according to actual needs, the position of the conical surface of the conical oscillator 2-2 sleeved with the conical oscillator 2-3 can be adjusted, and therefore the relative bandwidth of the ultra-wideband 5G ceiling antenna is adjusted.
In some specific embodiments, as shown in fig. 6, the lower vibrator 6 is set in a conical shape, and includes a lower conical vibrator 6-1, an upper conical vibrator 6-1, and a step surface 6-2 disposed at the edge of the bottom surface of the lower conical vibrator 6-1, and a plurality of circular holes are opened on the lower conical vibrator 6-1. By setting the lower oscillator 6 into a conical shape and arranging the round hole on the lower upper conical oscillator 6-1, the current path can be increased, and by matching with the upper oscillator 2, the low-frequency bandwidth can be further effectively widened and the height of the antenna can be effectively reduced.
In some specific embodiments, the outer surface of the upper conical transducer 2-2 is coated with a copper layer and a tin layer. The outer surface of the truncated cone-shaped vibrator 2-3 is coated with a copper material layer, and the copper material layer is also coated with a tin material layer. By sequentially coating the copper material layer and the tin material layer on the outer surface of the upper conical vibrator 2-2 and the outer surface of the conical vibrator 2-3, the low-frequency bandwidth can be further effectively widened, and the height of the antenna can be effectively reduced.
In some specific embodiments, after the position of the conical outer surface of the conical vibrator 2-2 is determined, the conical vibrator 2-3 is fixed on the conical outer surface of the conical vibrator 2-2 through soldering tin.
In some specific embodiments, the radiator further includes a housing 1 and a housing bottom plate 1-1, the housing 1 and the housing bottom plate 1-1 are installed to cooperate with each other to form an installation cavity, and the lower oscillator 6 and the upper oscillator 2 are installed in the installation cavity.
In some specific embodiments, a plastic fixing frame 9 (shown in fig. 5) for fixing and insulating the lower vibrator 6 and the upper vibrator 2 is arranged in the mounting inner cavity, and the plastic fixing frame 9 is arranged on the outer cover bottom plate 1-1; a first through hole for passing through the feed cable 7 is formed in the middle of the plastic fixing frame 9, and the upper end of the plastic fixing frame 9 is clamped with the upper vibrator 2 after passing through the through hole of the lower vibrator 6.
In some specific embodiments, the radiator further includes a connection seat 4 and a connection nut 5, an outer conductor of the feed cable 8 passes through the bottom plate 1-1 of the outer cover and the plastic fixing frame 9 and then is welded with the connection seat 4, the connection seat 4 passes through a circular hole at the top of the lower oscillator 6 and then is connected with a fastener of the connection nut 5, and an inner conductor of the feed cable 8 is welded with the tapered bottom of the upper conical oscillator 2-2.
In some specific embodiments, the radiator further includes an insulating plastic 3, and the insulating plastic 3 is located between the lower vibrator 6 and the upper vibrator 2 and plays a role in insulation and support.
In some specific embodiments, the step surface 6-2 of the lower vibrator 6 is placed on the bottom plate 1-1 of the outer cover, and the step surface 6-2 and the outer cover 1 are fastened together through pointed screws.
In some specific embodiments, the lower vibrator 6 and the upper vibrator 2 are made of aluminum material having a thickness of 1 mm.
The technical scheme has the following advantages:
(1) according to the technical scheme, the asymmetric double-cone structure (namely the lower oscillator 6 and the upper oscillator 2) is adopted, the cone frustum-shaped oscillator 2-3 is added on the upper oscillator, and the plurality of round holes are formed in the lower cone-shaped oscillator 6-1 and the upper cone-shaped oscillator, so that the low-frequency bandwidth can be further effectively widened, the whole UHF frequency band and part of UWB frequency band are almost covered, and the height of the antenna is effectively reduced; meanwhile, the asymmetrical double-cone structure is adopted as the radiator, so that the radiator is simple in structure, low in cost, convenient to produce and suitable for mass production.
(2) By adopting the structure, the ultra-wideband 5G ceiling antenna can meet the working frequency band of 698MHZ-6000MHZ, the relative bandwidth range can reach 160%, the standing wave ratio (VSWR) is better than below 1.8, wherein the standing wave ratio (VSWR) of 806MHZ-960MHZ/1710MHZ-2700MHZ is better than that of the ultra-wideband ceiling antenna below 1.5, and the working frequency band almost completely covers UHF and part of UWB (3000 + 6000MHZ) frequency band.
(3) By adopting the structure, the ultra-wideband 5G ceiling antenna expands the bandwidth of a frequency band, and the directional diagrams of all frequency points are relatively consistent; in addition, the conical vibrator 2-3 is additionally arranged, so that the selectivity of a current path of the upper vibrator 2 is increased, and the ultra-wideband 5G ceiling antenna realizes broadband and miniaturization; the ultra-wideband 5G ceiling antenna has the advantages that the return loss is below 11dB, the out-of-roundness is good, the horizontal plane basically covers 360 degrees, the structure is simple, the materials are less, and the cost is low in a working frequency band of 698MHZ-6000 MHZ.
(4) By adopting the structure, the ultra-wideband 5G ceiling antenna effectively enables the relative bandwidth of the ceiling antenna to reach 160% and cover the whole UHF frequency band by technologies such as asymmetric cone loading radiators (by additionally arranging the cone frustum-shaped vibrators 2-3), special electroplating treatment of radiators (by sequentially coating copper material layers and tin material layers on the outer surfaces of the upper cone frustum-shaped vibrators 2-2 and the outer surfaces of the cone frustum-shaped vibrators 2-3) and the like on the basis of ensuring the miniaturization of the ceiling antenna, and 20W input intermodulation reaches more than 153 dBc; meanwhile, aluminum with the thickness of 1mm is used as a radiator, so that the structure of the ceiling antenna is simplified, the weight is correspondingly lightened, and the performance of the antenna is ensured.
In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (8)
1. The ultra-wideband 5G ceiling antenna is characterized by comprising a radiator and a feed cable, wherein the radiator comprises a lower oscillator and an upper oscillator, the feed cable penetrates through the lower oscillator and is connected with the upper oscillator for feeding, and the feed cable is connected with a power supply through a connector; the upper vibrator comprises a round tube-shaped vibrator, an upper conical vibrator and a conical frustum vibrator, the bottom end of the upper conical vibrator is connected with one end of the round tube-shaped vibrator, the middle part of the conical frustum vibrator is provided with a sleeve hole, and the conical frustum vibrator is sleeved on the outer surface of a cone of the conical vibrator through the sleeve hole; the radiator also comprises an outer cover and an outer cover bottom plate, the outer cover and the outer cover bottom plate are mutually matched and installed to form an installation inner cavity, the lower vibrator and the upper vibrator are installed in the installation inner cavity, a plastic fixing frame used for fixing and insulating the lower vibrator and the upper vibrator is arranged in the installation inner cavity, and the plastic fixing frame is arranged on the outer cover bottom plate; the middle part of the plastic fixing frame is provided with a first through hole for passing through a feed cable, and the upper end of the plastic fixing frame is clamped with the upper vibrator after passing through the through hole of the lower vibrator.
2. The ultra wide band 5G ceiling antenna according to claim 1, wherein the lower vibrator is provided in a conical shape, and comprises a lower conical vibrator, an upper conical vibrator and a step surface arranged on the edge of the bottom surface of the lower conical vibrator, and a plurality of round holes are formed in the lower conical vibrator and the upper conical vibrator.
3. The ultra-wideband 5G ceiling antenna according to claim 1, wherein the outer surface of the upper conical oscillator is coated with a copper material layer, and the copper material layer is further coated with a tin material layer; the outer surface of the cone frustum-shaped vibrator is coated with a copper material layer, and the copper material layer is further coated with a tin material layer.
4. The ultra-wideband 5G ceiling antenna according to claim 1, wherein the truncated cone shaped element is fixed on the outer conical surface of the conical element by soldering.
5. The ultra wide band 5G ceiling antenna according to claim 1, wherein the radiator further comprises a connecting seat and a connecting nut, an outer conductor of the feed cable penetrates through the outer cover bottom plate and the plastic fixing frame and then is connected with the connecting seat in a welding mode, the connecting seat penetrates through a round hole in the top of the lower oscillator and then is connected with a fastening piece of the connecting nut, and an inner conductor of the feed cable is welded with the conical bottom of the upper conical oscillator.
6. The ultra-wideband 5G ceiling antenna according to claim 5, wherein the radiator further comprises an insulating plastic, the insulating plastic being located between the lower element and the upper element.
7. The ultra wide band 5G ceiling antenna according to claim 1, wherein the step surface of the lower oscillator is arranged on the bottom plate of the outer cover, and the step surface and the outer cover are fastened together through pointed screws.
8. The ultra-wideband 5G ceiling antenna according to claim 1, wherein the lower element and the upper element are made of aluminum material with a thickness of 1 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911367356.8A CN111129733B (en) | 2019-12-26 | 2019-12-26 | Ultra-wideband 5G ceiling antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911367356.8A CN111129733B (en) | 2019-12-26 | 2019-12-26 | Ultra-wideband 5G ceiling antenna |
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| CN111129733A CN111129733A (en) | 2020-05-08 |
| CN111129733B true CN111129733B (en) | 2022-05-17 |
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| CN102044742A (en) * | 2010-12-20 | 2011-05-04 | 东莞市星火通讯科技有限公司 | Omnibearing ceiling-mounted antenna and manufacturing method thereof |
| CN202076404U (en) * | 2011-06-02 | 2011-12-14 | 东莞市星火通讯科技有限公司 | Omni-directional ceiling antenna |
| EP2424037A1 (en) * | 2009-07-31 | 2012-02-29 | Hytera Communications Corp., Ltd. | Dual frequency antenna with wide frequency |
| CN204045742U (en) * | 2014-08-12 | 2014-12-24 | 广东华灿电讯科技有限公司 | Indoor bipolar omni-directional ceiling antenna |
| CN105680163A (en) * | 2016-02-06 | 2016-06-15 | 广东通宇通讯股份有限公司 | Edge-enhancement indoor coverage vertically-polarized omnidirectional ceiling antenna |
| CN106252850A (en) * | 2016-09-08 | 2016-12-21 | 西安电子科技大学 | Single polarization indoor ceiling aerial |
| CN206194954U (en) * | 2016-11-30 | 2017-05-24 | 广州创锦通信技术有限公司 | Superwide band's ceiling antenna |
| CN206401508U (en) * | 2017-01-18 | 2017-08-11 | 佛山市盛夫通信设备有限公司 | A kind of single polarization ceiling mount antenna |
| CN107611589A (en) * | 2017-09-29 | 2018-01-19 | 佛山市盛夫通信设备有限公司 | A kind of ultra wide band ceiling mount antenna |
| CN208637586U (en) * | 2018-09-19 | 2019-03-22 | 佛山市健博通电讯实业有限公司 | The high intermodulation ceiling mount antenna of ultra wide band |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2424037A1 (en) * | 2009-07-31 | 2012-02-29 | Hytera Communications Corp., Ltd. | Dual frequency antenna with wide frequency |
| CN102044742A (en) * | 2010-12-20 | 2011-05-04 | 东莞市星火通讯科技有限公司 | Omnibearing ceiling-mounted antenna and manufacturing method thereof |
| CN202076404U (en) * | 2011-06-02 | 2011-12-14 | 东莞市星火通讯科技有限公司 | Omni-directional ceiling antenna |
| CN204045742U (en) * | 2014-08-12 | 2014-12-24 | 广东华灿电讯科技有限公司 | Indoor bipolar omni-directional ceiling antenna |
| CN105680163A (en) * | 2016-02-06 | 2016-06-15 | 广东通宇通讯股份有限公司 | Edge-enhancement indoor coverage vertically-polarized omnidirectional ceiling antenna |
| CN106252850A (en) * | 2016-09-08 | 2016-12-21 | 西安电子科技大学 | Single polarization indoor ceiling aerial |
| CN206194954U (en) * | 2016-11-30 | 2017-05-24 | 广州创锦通信技术有限公司 | Superwide band's ceiling antenna |
| CN206401508U (en) * | 2017-01-18 | 2017-08-11 | 佛山市盛夫通信设备有限公司 | A kind of single polarization ceiling mount antenna |
| CN107611589A (en) * | 2017-09-29 | 2018-01-19 | 佛山市盛夫通信设备有限公司 | A kind of ultra wide band ceiling mount antenna |
| CN208637586U (en) * | 2018-09-19 | 2019-03-22 | 佛山市健博通电讯实业有限公司 | The high intermodulation ceiling mount antenna of ultra wide band |
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| CN111129733A (en) | 2020-05-08 |
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Denomination of invention: A Ultra Wideband 5G Ceiling Antenna Effective date of registration: 20230629 Granted publication date: 20220517 Pledgee: Bank of China Limited by Share Ltd. Foshan branch Pledgor: FOSHAN BOPUDA COMMUNICATION TECHNOLOGY Co.,Ltd. Registration number: Y2023980046603 |
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