CN113113771B - Multi-Band Antenna Structure - Google Patents
Multi-Band Antenna Structure Download PDFInfo
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- CN113113771B CN113113771B CN202110277023.7A CN202110277023A CN113113771B CN 113113771 B CN113113771 B CN 113113771B CN 202110277023 A CN202110277023 A CN 202110277023A CN 113113771 B CN113113771 B CN 113113771B
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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
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- 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
-
- 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
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Waveguide Aerials (AREA)
Abstract
The application relates to a multi-band antenna structure. The multiband antenna structure comprises: GND antenna floor; an antenna body, the antenna body comprising: wifi antenna main part and 4G antenna main part, wifi antenna main part with 4G antenna main part all with GND antenna floor electricity is connected. This multifrequency section antenna structure is through the mode on the shared GND antenna floor of Wifi antenna main part and 4G antenna main part for this multifrequency section antenna structure can work at 4G and Wifi frequency channel simultaneously, satisfies the mutual general demand of multifrequency section. Meanwhile, the mode of sharing the GND antenna floor can effectively reduce the size of the antenna structure.
Description
Technical Field
The present application relates to the field of wireless communications technologies, and in particular, to a multiband antenna structure.
Background
In recent years, wireless communication technology has been rapidly developed, and antennas have played a very important role as radio signal transmitting and receiving devices. The external antenna has the characteristics of high efficiency, higher gain, easy integration with other equipment and the like, the requirements on the integration level and the concealment of the external antenna are also put forward in the market, the antenna with high integration level can realize more functions in a limited size, and the antenna with good concealment can avoid the problem of communication failure caused by artificial movement or dismantling due to too conspicuous places with large personnel flow.
The external antenna devices on the market are various in types, and include a magnet-attracted screw antenna or a sucker antenna, a glue stick antenna with a rod-shaped structure, a back glue attracted patch antenna, a special ceramic dielectric antenna for positioning and the like. Among various antenna types, the performance of the stick antenna with the stick structure is stable, but the wall penetrating effect is poor in a specific scene, so that the user experience is affected, the stick antenna with the stick structure is long and thin in general structure, the section is high, and the performance is inversely proportional to the structure, for example, the good antenna performance of a low-frequency band cannot be guaranteed when the section is low. The stick antenna of stick structure comprises six parts such as circuit board subassembly, solid plastic part, isolation bubble cotton, gum cover, radio frequency cable, radio frequency connector at least, generally is the design of two unification stick antennas of double-fed, and antenna overall appearance structure is a flat cylindrical structure's stick antenna, and isolation bubble cotton is located two antenna circuit boards in the middle, plays fixed, keeps apart inside antenna usefulness, and circuit board subassembly is all installed in the gum cover, passes through rivet connection with solid plastic part and fixes, and the antenna outside adopts the radio frequency coaxial cable of length 0.3m to carry out signal transmission.
However, the external antenna structure on the market generally only supports a single communication system, and the application scenario is limited.
Disclosure of Invention
Based on this, it is necessary to provide a multiband antenna structure capable of simultaneously operating in the 4G and Wifi frequency bands, aiming at the problem that the antenna structure in the prior art generally supports only a single communication system.
To achieve the above object, in one aspect, the present application provides a multiband antenna structure, including:
GND antenna floor;
an antenna body, the antenna body comprising: wifi antenna main part and 4G antenna main part, wifi antenna main part with 4G antenna main part all with GND antenna floor electricity is connected.
Among the multiband antenna structure that provides in the above-mentioned embodiment, through the mode on the shared GND antenna floor of Wifi antenna main part and 4G antenna main part for this multiband antenna structure can work at 4G and Wifi frequency channel simultaneously, satisfies the mutual general demand of multiband.
In one embodiment, the multiband antenna structure further includes:
the first antenna patch is connected with the Wifi antenna main body;
a Wifi feed point located between the first antenna patch and the GND antenna floor to electrically connect the first antenna patch and the GND antenna floor;
a second antenna patch connected to the 4G antenna body;
and a 4G feeding point, wherein the 4G feeding point is positioned between the second antenna patch and the GND antenna floor so as to electrically connect the second antenna patch and the GND antenna floor.
In one embodiment, the 4G antenna body includes an arc-shaped radiating branch antenna body, and the Wifi antenna body includes two radiating branch antenna bodies.
In the multiband antenna structure provided in the above embodiment, by adopting the arc-shaped radiating branch antenna main body, the height and the section of the multiband antenna structure are reduced and the concealment of the multiband antenna structure is improved on the premise of guaranteeing the radiation performance.
In one embodiment, the multiband antenna structure further includes a PCB board, the GND antenna floor, the first antenna patch, the Wifi feeding point, the second antenna patch and the 4G feeding point are all located on a surface of the PCB board, and the Wifi antenna main body and the 4G antenna main body penetrate through the PCB board, so as to extend to a side of the PCB board away from the GND antenna floor.
In the multiband antenna structure provided in the above embodiment, the PCB board can play a supporting role on the antenna main body and the GND antenna ground plate, so that the multiband antenna structure is more stable.
In one embodiment, the Wifi feeding point and the 4G feeding point are respectively located at two opposite sides of the center of the PCB board, and a space is provided between the Wifi feeding point and the 4G feeding point.
In the multiband antenna structure provided in the above embodiment, the Wifi feeding point and the 4G feeding point are respectively located at two opposite sides of the center of the PCB board, so that isolation between two antenna main bodies of the multiband antenna structure is improved, and radiation performance is prevented from being influenced by coupling too strong.
In one embodiment, the multiband antenna structure further includes:
the insulation support foam is positioned on one side of the PCB board, provided with the GND antenna floor, the first antenna patch, the Wifi feeding point, the second antenna patch and the 4G feeding point, and the GND antenna floor, the first antenna patch, the Wifi feeding point, the second antenna patch and the 4G feeding point are positioned between the insulation support foam and the PCB board;
the conductive foam is inlaid in the insulating supporting foam and is electrically connected with the GND antenna floor; the part of the conductive foam, which is contacted with the GND antenna floor, is exposed out of the PCB.
In one embodiment, the multiband antenna structure further comprises a copper stud electrically connected with the conductive foam.
In the multiband antenna structure provided in the above embodiment, the GND antenna floor is connected with the copper stud through the conductive foam, so that the length of the GND antenna floor is effectively prolonged, the matching of the multiband antenna structure in the low-frequency band operation is optimized, and the multiband antenna structure is ensured to have higher radiation efficiency in the low-frequency band operation.
In one embodiment, the multiband antenna structure further includes:
the shell is provided with a containing cavity on the inner side, and the GND antenna floor, the first antenna patch, the second antenna patch, the Wifi feeding point, the 4G feeding point, the PCB, the insulating supporting foam and the conductive foam are all located in the containing cavity;
a lower housing cover covering the accommodating chamber; the copper stud penetrates through the lower shell cover, one end of the copper stud is electrically connected with the conductive foam, and the other end of the copper stud extends to the outer side of the lower shell cover.
In one embodiment, the multiband antenna structure further comprises a waterproof ring, wherein the waterproof ring is sleeved on the periphery of the copper stud and is attached to the surface of the lower shell cover.
In the multiband antenna structure provided in the above embodiment, the periphery of the copper stud is provided with the waterproof ring, so that the waterproof and anti-corrosion effects can be achieved.
In one embodiment, the multiband antenna structure further includes:
a radio frequency connector;
and one end of the radio frequency cable is connected with the radio frequency connector, and the other end of the radio frequency cable passes through the copper stud and is connected with the Wifi feeding point and the 4G feeding point.
The multiband antenna structure provided by the application has the following beneficial effects:
according to the multi-band antenna structure provided by the application, the mode that the GND antenna floor is shared by the Wifi antenna main body and the 4G antenna main body enables the multi-band antenna structure to work in the 4G frequency band and the Wifi frequency band simultaneously, and the requirement that the multi-band antenna structure is mutually universal is met.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments or the conventional techniques of the present application, the drawings required for the descriptions of the embodiments or the conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
Fig. 1 is a schematic diagram of an internal structure of a multiband antenna structure according to an embodiment of the present application;
fig. 2 is a schematic diagram of an external structure of a multiband antenna structure according to an embodiment of the present application, where fig. 2 (a) is a front view of the multiband antenna structure according to an embodiment of the present application, fig. 2 (b) is a right view of the multiband antenna structure according to an embodiment of the present application, and fig. 2 (c) is a left view of the multiband antenna structure according to an embodiment of the present application;
fig. 3 is a waveform diagram of an antenna performance parameter voltage standing wave ratio of a multiband antenna structure according to an embodiment of the present application, where the waveform diagram is a voltage standing wave ratio of the multiband antenna structure according to an embodiment of the present application in a full band 600-960MHz/1710-2690MHz, and the waveform diagram is a voltage standing wave ratio of the multiband antenna structure according to an embodiment of the present application in a Wifi antenna band 2400-2500 MHz.
Reference numerals illustrate:
1-GND antenna floor, 2-antenna body, 21-Wifi antenna body, 22-4G antenna body, 3-first antenna paster, 4-Wifi feed point, 5-second antenna paster, 6-4G feed point, 7-PCB board, 8-insulating support bubble cotton, 9-conductive bubble cotton, 10-copper double-screw bolt, 11-shell, 12-lower cap, 13-radio frequency connector, 14-radio frequency cable.
Detailed Description
In order that the application may be readily understood, a more complete description of the application will be rendered by reference to the appended drawings. Embodiments of the application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
Spatially relative terms, such as "under", "below", "beneath", "under", "above", "over" and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation depicted in the figures.
It will be understood that the terms first, second, etc. as used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element. For example, a first antenna patch may be referred to as a second antenna patch, and similarly, a second antenna patch may be referred to as a first antenna patch without departing from the scope of the present application. Both the first antenna patch and the second antenna patch are antenna patches, but they are not the same antenna patch.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. Further, "connection" in the following embodiments should be understood as "electrical connection", "communication connection", and the like if there is transmission of electrical signals or data between objects to be connected.
As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof. Also, the term "and/or" as used in this specification includes any and all combinations of the associated listed items.
Referring to fig. 1, in one embodiment of the present application, a multiband antenna structure is provided, including:
GND antenna floor 1;
an antenna main body 2, the antenna main body 2 including: the Wifi antenna main body 21 and the 4G antenna main body 22, and the Wifi antenna main body 21 and the 4G antenna main body 22 are electrically connected to the GND antenna floor 1.
The multiband antenna structure provided in the above embodiment, through the mode that Wifi antenna main body 21 and 4G antenna main body 22 share GND antenna floor 1 for this multiband antenna structure can work at 4G and Wifi frequency channel simultaneously, satisfies the mutually general demand of multiband. At the same time, the manner of sharing the GND antenna floor 1 can also effectively reduce the size of the antenna structure.
In one embodiment, a copper floor may be used as the GND antenna floor 1, or an antenna floor made of another material may be used as the GND antenna floor 1, and the material of the GND antenna floor 1 is not limited in the present application.
With continued reference to fig. 1, in one embodiment, the multiband antenna structure further includes:
a first antenna patch 3, wherein the first antenna patch 3 is connected with the Wifi antenna main body 21;
a Wifi feeding point 4, the Wifi feeding point 4 being located between the first antenna patch 3 and the GND antenna floor 1 to electrically connect the first antenna patch 3 with the GND antenna floor 1;
a second antenna patch 5, the second antenna patch 5 being connected to the 4G antenna body 22;
the 4G feeding point 6,4G feeding point 6 is located between the second antenna patch 5 and the GND antenna floor 1 to electrically connect the second antenna patch 5 with the GND antenna floor 1.
In the multiband antenna structure provided in the above embodiment, the first antenna patch 3 and the second antenna patch 5 can perform an optimized matching function, so that the multiband antenna structure has higher radiation efficiency, and can also be used as a bonding pad for fixing the antenna body 2.
With continued reference to fig. 1, in one embodiment, the 4G antenna body 22 includes an arc-shaped radiating branch antenna body, and the Wifi antenna body 21 includes two radiating branch antenna bodies.
The antenna structure on the market at present mostly adopts the structure of glue stick, and the antenna section of this kind of structure is too high, and the disguise is not good, is unfavorable for also integrating with other equipment. According to the multiband antenna structure provided by the embodiment, the arc-shaped radiation branch antenna main body is adopted, so that the height and the section of the multiband antenna structure are reduced on the premise of guaranteeing the radiation performance, and the concealment of the multiband antenna structure is improved. The adoption of the arc-shaped radiation branch antenna main body is also convenient for the multi-band antenna structure to be installed on various communication devices, so that the multi-band antenna structure is easier to integrate with other devices.
In one embodiment, the Wifi antenna body 21 and the 4G antenna body 22 may be formed by bending wires with diameters of 0.6mm-1.0 mm; specifically, the diameter of the wire may be 0.6mm, 0.7mm, 0.8mm, 0.9mm or 1.0mm, and the diameters of the Wifi antenna main body 21 and the 4G antenna main body 22 are not limited in the present application. In one embodiment, the Wifi antenna body 21 and the 4G antenna body 22 may also be radiation branch antenna bodies made of other materials, and the material of the Wifi antenna body 21 and the 4G antenna body 22 is not limited in the present application.
With continued reference to fig. 1, in one embodiment, the multiband antenna structure further includes a PCB 7, where the GND antenna floor 1, the first antenna patch 3, the Wifi feeding point 4, the second antenna patches 5 and the 4G feeding point 6 are all located on a surface of the PCB 7, and the Wifi antenna main bodies 21 and the 4G antenna main bodies 22 penetrate the PCB to extend to a side of the PCB 7 away from the GND antenna floor 1.
In the multiband antenna structure provided in the above embodiment, the PCB board 7 can play a supporting role on the antenna main body 2 and the GND antenna floor 1, so that the structure of the multiband antenna structure is more stable.
Specifically, in one embodiment, the PCB 7 has a through hole, and the Wifi antenna main body 21 and the 4G antenna main body 22 are connected to the GND antenna floor 1 on the bottom surface of the PCB 7 through the through hole.
In one embodiment, the thickness of the PCB 7 may be 0.8mm-1.2mm, in particular 0.8mm, 0.9mm, 1.0mm, 1.1mm or 1.2mm; in one embodiment, the material of the PCB 7 may be FR-4 (a composite material made of epoxy resin with four functions < Tera-Function > and Filler < Filler > and glass fiber), or other materials; the thickness and the material of the PCB 7 are not limited in the present application.
With continued reference to fig. 1, in one embodiment, the Wifi feeding points 4 and 4G feeding points 6 are respectively located at two opposite sides of the center of the PCB 7, and a space is provided between the Wifi feeding points 4 and 4G feeding points 6.
In the multiband antenna structure provided in the above embodiment, the Wifi feeding point 4 and the 4G feeding point 6 are respectively located at two opposite sides of the center of the PCB 7, which improves the isolation between the two antenna main bodies of the multiband antenna structure and avoids the influence of the coupling over-strong on the radiation performance.
With continued reference to fig. 1, in one embodiment, the multiband antenna structure further includes:
the insulation support foam 8 is positioned on one side of the PCB 7, provided with the GND antenna floor 1, the first antenna patch 3, the Wifi feeding point 4, the second antenna patch 5 and the 4G feeding point 6, and the GND antenna floor 1, the first antenna patch 3, the Wifi feeding point 4, the second antenna patch 5 and the 4G feeding point 6 are positioned between the insulation support foam 8 and the PCB 7;
the conductive foam 9 is inlaid in the insulating supporting foam 8 and is electrically connected with the GND antenna floor 1.
Specifically, in one embodiment, as shown in fig. 1, a portion of the conductive foam 9 in contact with the GND antenna floor electrical connection 1 is exposed outside the PCB board 7.
In the multiband antenna structure provided in the above embodiment, the insulating supporting foam 8 can play a role in supporting the antenna main body 2, and meanwhile, deformation of the conductive foam 9 caused by extrusion can be avoided, so that the working performance of the multiband antenna structure is ensured.
In one embodiment, the insulating support foam 8 may include, but is not limited to, any one of polyethylene foam, melamine resin foam, epoxy resin foam, and the like, and the type or material of the insulating support foam 8 is not limited in the present application.
In one embodiment, the conductive foam 9 may include, but is not limited to, any one of a common conductive foam, a nickel-plated copper conductive foam, a gold-plated conductive foam, a carbon-plated conductive foam, a tin-plated conductive foam, a conductive aluminum foil foam, a conductive copper foil foam, an omni-directional conductive foam, and the like, and the application is not limited to the type or material of the conductive foam 9.
Referring to fig. 2, in one embodiment, the multiband antenna structure further includes a copper stud 10, and the copper stud 10 is electrically connected to the conductive foam 9.
Most of external antenna structures on the market at present have low gain, the radiation efficiency is generally 20-30%, the communication quality can be influenced in a complex electromagnetic environment, the user experience is poor, the antenna radiation efficiency is low, the majority of energy is not radiated into space, and the power consumption of a radio frequency device is increased. In the multiband antenna structure provided in the above embodiment, the copper stud 10 is used for fixing the antenna main body 2, the GND antenna floor 1 is connected with the copper stud 10 through the conductive foam 9, so that the length of the GND antenna floor 1 is effectively prolonged, the standing wave of the low frequency band of the multiband antenna structure is optimized, the matching of the multiband antenna structure in the low frequency band is optimized, and the higher radiation efficiency of the multiband antenna structure in the low frequency band is ensured.
Referring to fig. 3, fig. 3 shows values of voltage standing wave ratios of antenna performance parameters tested by the multiband antenna structure under the vector network analyzer ZNB8, wherein, as shown in (a) of fig. 3, the voltage standing wave ratio of the full frequency band 0.6-0.96GHz/1.710-2.690GHz is basically below 3; as shown in the (b) diagram of FIG. 3, the voltage standing wave ratios of Wifi antenna frequency bands 2.4-2.5GHz are all below 2 and are all lower than the external antenna standing wave 3.0 required by industry, so that the standing wave of the low frequency band of the multiband antenna structure provided by the embodiment is optimized, and the working performance of the multiband antenna is improved.
Meanwhile, the fixing mode of the copper stud is more reliable than the fixing modes of magnetic attraction or adhesive, and the like.
Specifically, in one embodiment, a copper stud of model M12 may be used; in another embodiment, other types of copper studs such as M10 or M16 may be used, and the application is not limited to the type of copper stud.
With continued reference to fig. 2, in one embodiment, the multiband antenna structure further includes:
the shell 11, the inside of the shell 11 forms a holding cavity, and the GND antenna floor 1, the first antenna patch 3, the second antenna patch 5, the Wifi feed point 4, the 4G feed point 6, the PCB 7, the insulating supporting foam 8 and the conductive foam 9 are all positioned in the holding cavity;
a lower case cover 12 covering the accommodation chamber; the copper stud 10 penetrates the lower shell cover 12, one end of the copper stud is electrically connected with the conductive foam 9, and the other end of the copper stud extends to the outer side 12 of the lower shell cover.
Specifically, the conductive foam 9 and the insulating support foam 8 are both located between the PCB 7 and the lower casing cover 12, wherein the conductive layer of the conductive foam 9 is connected with the GND antenna floor 1 and the copper stud 10.
In one embodiment, the housing 11 may include, but is not limited to, ABS (Acrylonitrile butadiene Styrene copolymers, acrylonitrile butadiene styrene) material, and the application is not limited to the material of the housing 11. In the multiband antenna structure provided by the embodiment, the shell 11 is made of ABS material, so that the multiband antenna structure is high in strength, good in toughness and easy to machine and form, and meanwhile, the multiband antenna structure can resist high temperature, and the highest working temperature can reach the requirement of 75 ℃.
In one embodiment, the diameter of the housing 11 may be 45mm-65mm, in particular 45mm, 50mm, 55mm, 60mm or 65mm etc.; in one embodiment, the height of the housing 11 may be 45mm-55mm, specifically 45mm, 50mm, 55mm, etc., and the diameter and the height of the housing 11 are not limited in the present application. In the multiband antenna structure provided in the above embodiment, the structural dimension D (diameter) ×h (height) of the housing 11 is 50mm×48.5mm.
In one embodiment, the multiband antenna structure further comprises a waterproof ring (not shown in the figure), wherein the waterproof ring is sleeved on the periphery of the copper stud 10 and is attached to the surface of the lower shell cover 12.
In the multiband antenna structure provided in the above embodiment, the periphery of the copper stud 10 is provided with a waterproof ring, which can play a role in waterproof and corrosion prevention.
With continued reference to fig. 2, in one embodiment, the multiband antenna structure further includes:
a radio frequency connector 13;
and one end of the radio frequency cable 14 is connected with the radio frequency connector 13, and the other end of the radio frequency cable 14 passes through the copper stud 10 and is connected with the Wifi feed point 4 and the 4G feed point 6.
In one embodiment, the rf connector 13 may include, but is not limited to, an SMA connector, and the application is not limited to the type of rf connector 13; in one embodiment, the rf cable 14 may include, but is not limited to, an RG174 model rf cable, and the application is not limited to the model of the rf cable 14.
Specifically, the modulated 4G and/or Wifi signals are input to the back-end communication device, the back-end communication device is in communication connection with the radio frequency connector 13 at the tail end of the radio frequency cable 14, the signals are respectively input to the radio frequency cable 14 through the radio frequency connector 13 and are transmitted to the antenna main body 2 at the other end of the radio frequency cable 14 through the radio frequency cable 14, after passing through the antenna main body 2, guided waves in the radio frequency cable 14 are converted into electromagnetic waves to radiate into space, and a user can receive high-quality 4G and/or Wifi signals within the radiation coverage range of the antenna.
In one embodiment, the operating frequency range of the multi-band antenna structure is 600-960MHz/1710-2690MHz/2400-2500MHz, which can cover three major operator networks of domestic telecommunication, mobile and UNICOM.
Referring to tables 1 to 3, tables 1 to 3 show antenna efficiency data of the multiband antenna structure provided in one embodiment under the environment of testing the radiation efficiency and gain performance of the antenna in a special microwave darkroom, and the model of the microwave darkroom is AMS-89230.
Table 1 the multiband antenna structure of the present application gain performance data at 4G low band efficiency
Table 2 gain performance data for the multiband antenna structure of the present application at 4G low band efficiency
TABLE 3 efficiency gain performance data for the Multiband antenna structures of the present application at Wifi Low band
As can be seen from the data in tables 1 to 3, the 4G low band 600-960MHz efficiency is 27.72% -70.91%, the average efficiency is 51.6%, the gain is 0.7-3.6dBi, and the average gain is 2.0dBi; in the high frequency band 1710-2690MHz in 4G, the radiation efficiency is 36.08% -68.07%, the average efficiency is 54.96%, the gain is 1.4-5.0dBi, and the average gain is 3.18dBi. Wifi frequency band 2400-2500MHz efficiency is 55.84% -71.02%, average efficiency 63.27%, gain is 5.2-5.8dBi, and average gain is 5.62dBi. In the case of attenuation of the rf cable 14, the external antenna industry generally requires an efficiency of greater than 25% and a gain of greater than 0dBi for better performance. As can be seen from the data in tables 1 to 3, the multiband antenna structure provided in the above embodiment has higher radiation efficiency, and the performance is in a better state in industry.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "other embodiments," and the like, means 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 application. In this specification, schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (8)
1. A multi-band antenna structure comprising:
GND antenna floor;
an antenna body, the antenna body comprising: the antenna comprises a Wifi antenna body and a 4G antenna body, wherein the Wifi antenna body and the 4G antenna body are electrically connected with the GND antenna floor;
the first antenna patch is connected with the Wifi antenna main body;
a Wifi feed point located between the first antenna patch and the GND antenna floor to electrically connect the first antenna patch and the GND antenna floor;
a second antenna patch connected to the 4G antenna body;
a 4G feed point located between the second antenna patch and the GND antenna floor to electrically connect the second antenna patch and the GND antenna floor;
a PCB board;
the Wifi feeding points and the 4G feeding points are respectively positioned at two opposite sides of the center of the PCB, and a space is reserved between the Wifi feeding points and the 4G feeding points;
the insulation support foam is positioned on one side of the PCB board, provided with the GND antenna floor, the first antenna patch, the Wifi feeding point, the second antenna patch and the 4G feeding point, and the GND antenna floor, the first antenna patch, the Wifi feeding point, the second antenna patch and the 4G feeding point are positioned between the insulation support foam and the PCB board;
the conductive foam is inlaid in the insulating supporting foam and is electrically connected with the GND antenna floor;
and the copper stud is electrically connected with the conductive foam.
2. The multiband antenna structure according to claim 1, wherein the 4G antenna body includes an arc-shaped radiating stub antenna body, and the Wifi antenna body includes two radiating stub antenna bodies.
3. The multiband antenna structure according to claim 1, wherein the GND antenna floor, the first antenna patch, the Wifi feed point, the second antenna patch and the 4G feed point are all located on a surface of the PCB, and the Wifi antenna body and the 4G antenna body penetrate through the PCB to extend to a side of the PCB away from the GND antenna floor.
4. The multiband antenna structure according to claim 1, wherein the insulating support foam includes any one of polyethylene foam, melamine resin foam, and epoxy resin foam.
5. The multiband antenna structure according to claim 1, wherein the conductive foam includes any one of a normal conductive foam, a nickel-plated copper conductive foam, a gold-plated conductive foam, a carbon-plated conductive foam, a tin-plated conductive foam, a conductive aluminum foil foam, a conductive copper foil foam, and an omni-directional conductive foam.
6. The multiband antenna structure according to claim 1, wherein the multiband antenna structure further comprises:
the shell is provided with a containing cavity on the inner side, and the GND antenna floor, the first antenna patch, the second antenna patch, the Wifi feeding point, the 4G feeding point, the PCB, the insulating supporting foam and the conductive foam are all located in the containing cavity;
a lower housing cover covering the accommodating chamber; the copper stud penetrates through the lower shell cover, one end of the copper stud is electrically connected with the conductive foam, and the other end of the copper stud extends to the outer side of the lower shell cover.
7. The multiband antenna structure according to claim 6, further comprising a waterproof ring sleeved on the periphery of the copper stud and attached to the surface of the lower case cover.
8. The multiband antenna structure according to claim 6, wherein the multiband antenna structure further comprises:
a radio frequency connector;
and one end of the radio frequency cable is connected with the radio frequency connector, and the other end of the radio frequency cable passes through the copper stud and is connected with the Wifi feeding point and the 4G feeding point.
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