CN109301503B - Small integrated antenna - Google Patents

Small integrated antenna Download PDF

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Publication number
CN109301503B
CN109301503B CN201811340412.4A CN201811340412A CN109301503B CN 109301503 B CN109301503 B CN 109301503B CN 201811340412 A CN201811340412 A CN 201811340412A CN 109301503 B CN109301503 B CN 109301503B
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oscillator
oscillators
directional
substrate
uhf
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CN201811340412.4A
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CN109301503A (en
Inventor
杨瑞典
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Shenzhen Antop Technology Ltd
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Shenzhen Antop Technology Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/42Housings not intimately mechanically associated with radiating elements, e.g. radome
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/52Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/28Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements
    • H01Q19/30Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements the primary active element being centre-fed and substantially straight, e.g. Yagi antenna
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/29Combinations of different interacting antenna units for giving a desired directional characteristic
    • H01Q21/293Combinations of different interacting antenna units for giving a desired directional characteristic one unit or more being an array of identical aerial elements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/30Combinations of separate antenna units operating in different wavebands and connected to a common feeder system

Abstract

The patent discloses a small-size integrated antenna, including two sets of UHF oscillators and a set of VHF oscillators, the UHF oscillator includes a set of qxcomm technology oscillator and a set of directional oscillator, qxcomm technology oscillator, directional oscillator, VHF oscillator set up and the interval distributes along vertical axis direction order, the reflection or the receipt direction of qxcomm technology oscillator and directional oscillator are perpendicular to vertical axis direction. The small integrated antenna comprises a group of VHF oscillators and two groups of UHF oscillators, wherein one group of UHF oscillators adopts an omnidirectional oscillator, and the other group of UHF oscillators adopts a directional oscillator, and the UHF oscillators are arranged in the middle layer, so that stable reception of vehicles and ships during movement is ensured, and the receiving effect of weak television signals is also ensured; a PCB circuit board and a power supply circuit can be shared in one shell, so that the cost is effectively saved; the VHF oscillators are arranged at the lowest layer, the three receiving oscillators respectively guide signals to the PCB, and a high-quality filter circuit is designed on one PCB, so that the VHF and UHF receiving signals are ensured not to influence each other, and the receiving effect of the user requirement is achieved.

Description

Small integrated antenna
Technical Field
The patent relates to the field of antenna technology, and more particularly, to a small integrated antenna.
Background
An omni-directional antenna, i.e. one which exhibits a uniform radiation of 360 ° in the horizontal pattern, i.e. so-called non-directivity, exhibits a beam of a certain width in the vertical pattern, in general the smaller the lobe width the larger the gain. An omni-directional antenna is generally applied to a station system of suburban county and regional system in a mobile communication system, and has a large coverage area.
A directional antenna is an antenna that emits and receives electromagnetic waves particularly strongly in one or a few specific directions, while emitting and receiving electromagnetic waves in other directions is zero or very small, and exhibits radiation in a certain angular range on a horizontal pattern, which is commonly known as directivity. As with omni-directional antennas, the smaller the lobe width, the greater the gain. The directional antenna is generally applied to the environment with long communication distance, small coverage, large target density and high frequency utilization rate in a communication system. The purpose of adopting the directional transmitting antenna is to increase the effective utilization rate of the radiation power and the confidentiality; the main purpose of using directional receiving antennas is to increase the signal strength and increase the interference immunity.
The Ultra High Frequency (UHF) refers to radio waves with a wavelength range of 1 to 1dm and a frequency of 300 to 3000MHz, and is commonly used in the fields of mobile communication and broadcast television. The Very High Frequency (VHF) is a radio wave with a frequency band of 30Mhz to 300 MHz. In the prior art, an antenna product only has one group of UHF oscillators, a user needs to purchase two antenna products when want to use two groups of UHF oscillators to transmit or receive signals, and each antenna product needs to use a shell, one group of power supply circuit, one amplifying circuit, one mounting bracket and the like, so that the cost is high and the occupied space is large. The two groups of UHF vibrators share one shell, one group of power supply circuit, one amplifying circuit, one mounting bracket and the like, so that the contradiction between miniaturization of the antenna after combined mounting and mutual interference prevention of the vibrators is difficult to solve.
Disclosure of Invention
In view of the above, the present patent provides a small integrated antenna with stable reception and significantly improved weak signal receiving effect to overcome at least one of the above-mentioned drawbacks of the prior art.
In order to solve the technical problems, the patent adopts the following technical scheme:
the UHF oscillators comprise a group of omnidirectional oscillators and a group of directional oscillators, the omnidirectional oscillators, the directional oscillators and the VHF oscillators are sequentially arranged along the vertical axis direction and distributed at intervals, and the reflection or receiving directions of the omnidirectional oscillators and the directional oscillators are perpendicular to the vertical axis direction.
In the patent, the small integrated antenna comprises a group of VHF oscillators and two groups of UHF oscillators, wherein one group of UHF oscillators adopts an omnidirectional oscillator, and is arranged at the uppermost layer, so that television signals from all directions can be received, and stable reception of vehicles and ships during movement is ensured; the other group of UHF oscillators adopts a directional oscillator, and the directional oscillator is arranged in the middle layer, so that the gain of the directional oscillator is higher, the function of the directional oscillator is to make up the defect of weak signal receiving capacity of an omnidirectional antenna, and the weak television signal receiving is obviously improved; the two installation positions are reasonably arranged to avoid mutual interference, and the two installation positions are respectively received and amplified and then mixed together, so that the effects of getting the best and the best together can be achieved; meanwhile, the design can share one PCB circuit board and one power supply circuit in one shell, so that the cost is effectively saved; the VHF oscillators are arranged at the lowest layer, the arrangement mode of the arrangement around the UHF oscillators is presented in the plane of the transverse axis and the longitudinal axis, the length of the oscillators can be ensured to receive VHF frequency band signals as much as possible, the receiving of other antenna oscillators is not influenced, and the three layers of antenna oscillators are staggered and do not interfere with each other. The three receiving oscillators respectively guide signals to the PCB, and a high-quality filter circuit is designed on one PCB, so that VHF and UHF receiving signals are ensured not to influence each other, and the receiving effect of user requirements is achieved.
Preferably, the distance between the omnidirectional oscillator and the directional oscillator in the vertical axis direction is larger than 5mm. When the interval between two UHF oscillators is greater than 5mm, can effectively prevent both mutual interference, especially can prevent to the maximum extent that both mutual interference when the interval between two is greater than or equal to 10mm, simultaneously can also improve mixed effect to the maximum extent.
The omnidirectional oscillator comprises a substrate, a wiring port and a plurality of oscillator units, wherein the substrate is perpendicular to the vertical axis, the wiring port is arranged at the center of the substrate and is connected to a signal processor through a coaxial cable, the oscillator units are distributed on the substrate around the circumferential array of the center of the substrate, each oscillator unit comprises a radiating part and a conducting part, each radiating part comprises a first radiating sheet and a second radiating sheet, the first radiating sheet is arranged on the substrate in parallel, the second radiating sheet is arranged on the edge of the substrate in perpendicular, the outer side edge of the first radiating sheet is connected with the inner side face of the second radiating sheet, the conducting part is arranged on the substrate in parallel, one end of each conducting part is connected with one end of the first radiating sheet, and the other end of each conducting part is connected with the wiring port.
In the patent, vibrator units are distributed on a substrate around a substrate center circumferential array, and a conducting part of each vibrator unit is connected to a wiring port and is uniformly connected to a signal processor through a coaxial cable by the wiring port. The first radiation piece and the second radiation piece are of thin-plate structures, the substrate is also of thin-plate structures, the first radiation piece is arranged on the substrate in parallel, the first radiation piece is attached to the substrate, and the horizontal plane of the first radiation piece is parallel to the horizontal plane of the substrate; the second radiation piece is vertically arranged at the edge of the substrate, namely, the second radiation piece tightly winds the periphery of the substrate to form a curved surface or a plane which is matched with the shape of the edge of the substrate, and the horizontal plane where the second radiation piece is positioned or the tangent plane of any point on the second radiation piece is mutually perpendicular to the horizontal plane where the substrate is positioned. The oscillator dish that car as a house antenna adopted this patent even in the use car as a house is through the road that the road surface is rugged, the receiving effect also receives not influenced. In addition, because the second radiation piece that is connected perpendicularly with first radiation piece sets up next base plate edge for the firm stability of structure of oscillator unit, thereby guarantee signal reception, reflection, the stability of transmission, guarantee signal's receipt effect.
The radiation part also comprises a third radiation piece which is parallel to the substrate and is arranged at a distance from the substrate, and the outer side edge of the third radiation piece is connected with the inner side face of the second radiation piece. Similarly, the third radiating piece is also of a thin-sheet structure, the radiating part comprises a first radiating piece and a third radiating piece which are parallel to each other and a second radiating piece which connects the first radiating piece and the third radiating piece together, the first radiating piece is connected with the conducting part, and signals received by the three radiating pieces are finally transmitted to the signal processor through the conducting part and a coaxial cable connected with the conducting part. The third radiation sheet parallel to the first radiation sheet is added, the reflection index of the antenna element is better, and due to the change of the structure, the matching performance of the antenna is improved, the reflection of signals is reduced, and the receiving efficiency is improved. The improvement of the vibrator structure enlarges the size of the vibrator, widens the receiving frequency band of the antenna, and improves the gain of 470-520MHz frequency joint, thereby enhancing the receiving effect. Under the condition of not increasing the diameter of the product, the receiving area of the vibrator is enlarged, and the gain flatness in the UHF frequency band is improved.
The directional oscillator adopts a yagi antenna oscillator and comprises reflectors, main oscillators and directors which are sequentially arranged in the direction perpendicular to the vertical axis and distributed at intervals. The method has good directivity and higher gain, better overcomes the defect of weak signal receiving capability of the omnidirectional vibrators, and more obviously improves the reception of weak television signals. The director is slightly shorter than one half wavelength, the main oscillator is equal to one half wavelength, the reflector is slightly longer than one half wavelength, and the distance is one quarter wavelength.
The directional oscillator also adopts a thin-sheet structural design, so that miniaturization of the integrated antenna is promoted, matching of the integrated antenna and the omnidirectional oscillator is improved, mutual interference between the directional oscillator and the omnidirectional oscillator can be further prevented, and signal mixing effect can be improved. The reflector, the main vibrator and the director are all of a thin sheet structure, the reflector is composed of a plurality of reflection vibrator sheets connected end to end, an obtuse angle, a right angle or an acute angle is formed between every two adjacent reflection vibrator sheets, the main vibrator is a folded vibrator and is composed of main vibrator sheets with T-shaped hollowed-out parts, and the director is composed of guide vibrator sheets.
The VHF oscillator is a dipole oscillator and is composed of bent strip oscillator sheets which are symmetrically arranged. The projection of the strip-shaped oscillator piece on the plane where the transverse axis and the longitudinal axis are located is in a symmetrical arc shape with opposite arc centers, the circumferential dimension of the integrated antenna is reduced on the premise of guaranteeing the oscillator length and the input impedance, and the miniaturization of the integrated antenna is better achieved. The arrangement mode of the UHF oscillator is shown in the plane of the transverse axis and the longitudinal axis, a certain distance is kept between the UHF oscillator and the UHF oscillator in the vertical axis direction, and a certain distance is also kept between the UHF oscillator and the UHF oscillator in the transverse axis and the longitudinal axis direction, so that the oscillator length is ensured to receive VHF frequency band signals as much as possible, and the receiving effect of other antenna oscillators is avoided.
In addition, in order to protect the elements and to ensure the relative positioning and fixing of the three sets of elements, the small integrated antenna generally further comprises an antenna housing having a housing cavity inside, said antenna housing comprising an upper casing and a lower casing which are mutually fastened to form said housing cavity. The three groups of vibrators are installed and fixed in the accommodating cavity formed between the upper shell and the lower shell, so that the pollution of rainwater, fog and dust to the vibrators can be effectively prevented, and the influence on the signal receiving and reflecting is avoided.
The omnidirectional oscillator is characterized in that a plurality of connecting columns are arranged at the top of the upper shell, a plurality of connecting holes matched with the connecting columns are formed in the substrate, and the omnidirectional oscillator is fixedly arranged at the top of the upper shell through the matching connection of the connecting columns and the connecting holes. The connecting column comprises a fixing column with an internal threaded hole and a positioning column higher than the fixing column, the fixing column and the positioning column are connected together through a reinforcing rib, the connecting hole is formed by a group of fixing holes and positioning holes which are matched with the fixing column and the positioning column respectively, when the omnidirectional oscillator is installed, the omnidirectional oscillator is accurately positioned through the matching of the positioning column and the positioning holes, and then the omnidirectional oscillator is fixed through the internal threaded hole on the fixing column after penetrating through the fixing hole through a screw or a bolt.
The lower shell is connected with three brackets which are arranged in a line and are arranged at intervals, and the intervals among the brackets are the actual required intervals among three component units of the directional array, so that the relative positions among the reflective oscillator piece, the main oscillator piece and the guiding oscillator piece are ensured.
The support is provided with hooks, hanging holes matched with the hooks are formed in the reflecting oscillator piece, the main oscillator piece and the guiding oscillator piece, and the reflecting oscillator piece, the main oscillator piece and the guiding oscillator piece are respectively supported and fixed on the 3 supports through the cooperation of the hooks and the hanging holes. The height of the bracket and the position of the hook are determined by the relative position requirements of the three groups of vibrators, and the relative positions of the three groups of vibrators are guaranteed in turn, so that the stability of signal receiving is guaranteed, and the automatic production of the integrated antenna is facilitated.
Or the support, the reflection oscillator piece, the main oscillator piece and the guide oscillator piece are all provided with through holes, and the reflection oscillator piece, the main oscillator piece and the guide oscillator piece are all connected and fixed with the corresponding support through the through holes by means of connecting pieces such as screws or bolts.
The reflector oscillator piece, the main oscillator piece and the guide oscillator piece are respectively supported and positioned on the corresponding support through the cooperation of the hook and the hanging hole, and then are fixed through the cooperation of the through holes and connecting pieces such as screws or bolts.
The lower shell is provided with a plurality of positioning protrusions which are arranged at intervals from the inner wall, and the strip-shaped vibrator sheet is clamped between the positioning protrusions and the inner wall of the lower shell. The strip-shaped oscillator piece is fixed through the matching action of the inner wall of the lower shell and the positioning protrusions, so that the strip-shaped oscillator piece does not occupy the inner space of the shell, and can not interfere other two groups of oscillators, and the miniaturization design of the integrated antenna is ensured.
Compared with the prior art, the patent has the following beneficial effects: the small integrated antenna comprises a group of VHF oscillators and two groups of UHF oscillators, wherein one group of UHF oscillators adopts an omnidirectional oscillator, and the other group of UHF oscillators adopts a directional oscillator, and the UHF oscillators are arranged in the middle layer, so that stable reception of vehicles and ships during movement is ensured, and the receiving effect of weak television signals is also ensured; meanwhile, the design can share one PCB circuit board and one power supply circuit in one shell, so that the cost is effectively saved; the VHF oscillators are arranged at the lowest layer, the arrangement mode of the arrangement around the UHF oscillators is presented in the plane of the transverse axis and the longitudinal axis, the length of the oscillators can be ensured to receive VHF frequency band signals as much as possible, the receiving of other antenna oscillators is not influenced, and the three layers of antenna oscillators are staggered and do not interfere with each other. The three receiving oscillators respectively guide signals to the PCB, and a high-quality filter circuit is designed on one PCB, so that VHF and UHF receiving signals are ensured not to influence each other, and the receiving effect of user requirements is achieved.
Drawings
Fig. 1 is a schematic diagram of the internal structure of a compact integrated antenna.
Fig. 2 is a schematic structural diagram of an omni-directional vibrator.
Fig. 3 is a schematic structural view of the vibrator unit.
Fig. 4 is a schematic structural diagram of a directional array.
Fig. 5 is an exploded schematic view of a compact integrated antenna.
Fig. 6 is a cross-sectional view of a compact integrated antenna.
Fig. 7 is a schematic view of the mounting structure of the lower housing and the bracket.
Fig. 8 is a schematic diagram of a mounting structure of the directional vibrator and the bracket.
Fig. 9 is a schematic view of the junction between the VHF resonator and the lower case.
Reference numerals illustrate: the omnidirectional resonator 100, the substrate 110, the connection hole 111, the fixing hole 1111, the positioning hole 1112, the connection port 120, the resonator unit 130, the radiating part 131, the first radiating piece 1311, the second radiating piece 1312, the third radiating piece 3, the conducting part 132, the directional resonator 200, the reflector 210, the main resonator 220, the director 230, the hanging hole 204, the vhf resonator 300, the upper case 410, the connection post 411, the fixing post 4111, the positioning post 4112, the lower case 420, the bracket 421, the hook 4211, and the positioning boss 422.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the positional relationship described in the drawings is for illustrative purposes only and is not to be construed as limiting the present patent. This patent is described in further detail below in connection with specific examples.
As shown in fig. 1, a small integrated antenna comprises two sets of UHF oscillators and a set of VHF oscillators 300, wherein the UHF oscillators comprise a set of omni-directional oscillators 100 and a set of directional oscillators 200, the omni-directional oscillators 100, the directional oscillators 200 and the VHF oscillators 300 are sequentially arranged along the vertical axis direction and are distributed at intervals, and the reflection or receiving directions of the omni-directional oscillators and the directional oscillators 200 are perpendicular to the vertical axis direction.
In the patent, the small integrated antenna comprises a group of VHF oscillators 300 and two groups of UHF oscillators, wherein one group of UHF oscillators adopts an omnidirectional oscillator 100, and is arranged at the uppermost layer, so that television signals from all directions can be received, and stable reception of vehicles and ships during movement is ensured; the other group of UHF oscillators adopts the directional oscillator 200, and the directional oscillator 200 is arranged in the middle layer, so that the gain of the directional oscillator 200 is higher, the effect of the directional oscillator is to make up the defect of weak signal receiving capacity of the omnidirectional antenna, and the weak television signal receiving is obviously improved; the two installation positions are reasonably arranged to avoid mutual interference, and the two installation positions are respectively received and amplified and then mixed together to achieve the effects of supplementing the advantages and the disadvantages; meanwhile, the design can share one PCB circuit board and one power supply circuit in one shell, so that the cost is effectively saved; the VHF element 300 is arranged at the lowest layer, and is arranged around the UHF element in the plane of the horizontal axis and the vertical axis, so that the length of the element can be ensured to receive VHF frequency band signals as much as possible, and the receiving effect of other antenna elements is not affected, and the three layers of antenna elements are staggered and do not interfere with each other. The three receiving oscillators respectively guide signals to the PCB, and a high-quality filter circuit is designed on one PCB, so that VHF and UHF receiving signals are ensured not to influence each other, and the receiving effect of user requirements is achieved.
Preferably, the distance between the omnidirectional oscillator 100 and the directional oscillator 200 in the vertical axis direction is larger than 5mm. When the interval between two UHF oscillators is greater than 5mm, can effectively prevent both mutual interference, especially can prevent to the maximum extent that both mutual interference when the interval between two is greater than or equal to 10mm, simultaneously can also improve mixed effect to the maximum extent.
As shown in fig. 2-3, the omni-directional vibrator 100 includes a substrate 110 disposed on a vertical axis, a connection port 120 and a plurality of vibrator units 130, the connection port 120 is disposed at the center of the substrate 110 and connected to a signal processor through a coaxial cable, the plurality of vibrator units 130 are circumferentially distributed on the substrate 110 around the center of the substrate 110, each vibrator unit 130 includes a radiation portion 131 and a conductive portion 132, the radiation portion 131 includes a first radiation sheet 1311 disposed on the substrate 110 in parallel and a second radiation sheet 1312 disposed on an edge of the substrate 110 in perpendicular, an outer edge of the first radiation sheet 1311 is connected to an inner side surface of the second radiation sheet 1312, the conductive portion 132 is disposed on the substrate 110 in parallel, one end of the conductive portion 132 is connected to one end of the first radiation sheet 1311, and the other end is connected to the connection port 120.
In this patent, the vibrator units 130 are distributed on the substrate 110 around the central circumferential array of the substrate 110, and the conductive portion 132 of each vibrator unit 130 is connected to the wiring port 120 and is uniformly connected to the signal processor through the coaxial cable by the wiring port 120. The first radiation piece 1311 and the second radiation piece 1312 are both in a thin plate structure, the substrate 110 is also in a thin plate structure, and the first radiation piece 1311 is arranged on the substrate 110 in parallel, which is equivalent to that the first radiation piece 1311 is attached to the substrate 110, and the horizontal plane of the first radiation piece 1311 is parallel to the horizontal plane of the substrate 110; the second radiation piece 1312 is vertically disposed at the edge of the substrate 110, that is, the second radiation piece 1312 tightly surrounds the periphery of the substrate 110 to form a curved surface or a plane corresponding to the shape of the edge of the substrate 110, and the horizontal plane of the second radiation piece 1312 or the tangential plane of any point on the second radiation piece 1312 is mutually perpendicular to the horizontal plane of the substrate 110, so that each vibrator unit 130 includes a first radiation piece 1311 and a second radiation piece 1312 which are mutually vertically connected, and the first radiation piece 1311 is connected to the middle position of the inner side surface of the second radiation piece 1312 in the direction perpendicular to the substrate 110, so that the bandwidth is wider, the gain is higher, the signal receiving effect is greatly improved, not only the horizontally polarized wave signal can be received, but also a certain receiving effect is achieved on the vertically polarized wave signal. The oscillator dish that car as a house antenna adopted this patent even in the use car as a house is through the road that the road surface is rugged, the receiving effect also receives not influenced. In addition, since the second radiation piece 1312, which is vertically connected with the first radiation piece 1311, is disposed next to the edge of the substrate 110, the structure of the vibrator unit 130 is firm and stable, thereby ensuring the stability of signal reception, reflection, and transmission, and ensuring the signal reception effect.
The radiating part 131 further includes a third radiating fin 1313 disposed parallel to the substrate 110 and spaced apart from the substrate 110, and an outer edge of the third radiating fin 1313 is connected to an inner side of the second radiating fin 1312. Similarly, the third radiation piece 1313 is also a thin-sheet structure, the radiation part 131 includes a first radiation piece 1311 and a third radiation piece 1313 parallel to each other and a second radiation piece 1312 connecting the first radiation piece 1311 and the third radiation piece with each other, and the first radiation piece 1311 is connected to the conductive part 132, and the signals received by the three pieces are finally transmitted to the signal processor through the conductive part 132 and the coaxial cable connected to the conductive part 132. The third radiation sheet 1313 parallel to the first radiation sheet 1311 is added, the reflection index of the antenna element is better, and due to the change of the structure, the matching performance of the antenna is improved, the reflection of signals is reduced, and the receiving efficiency is improved. The improvement of the vibrator structure enlarges the size of the vibrator, widens the receiving frequency band of the antenna, and improves the gain of 470-520MHz frequency joint, thereby enhancing the receiving effect. Under the condition of not increasing the diameter of the product, the receiving area of the vibrator is enlarged, and the gain flatness in the UHF frequency band is improved.
The directional antenna can adopt yagi antenna element or dipole or log periodic antenna element and other types of elements. As shown in fig. 4, the directional element 200 in this embodiment adopts a yagi antenna element, and includes a reflector 210, a main element 220, and a director 230, which are sequentially arranged and spaced apart from each other in a direction perpendicular to a vertical axis. The omni-directional vibrator 100 has good directivity and higher gain, better overcomes the defect of weak signal receiving capability of the omni-directional vibrator 100, and more obviously improves the reception of weak television signals. Director 230 is slightly shorter than one-half wavelength, primary 220 is equal to one-half wavelength, reflector 210 is slightly longer than one-half wavelength, and the spacing is one-quarter wavelength.
The directional oscillator 200 also adopts a thin-sheet structural design, so that miniaturization of an integrated antenna is promoted, matching of the integrated antenna with the omnidirectional oscillator 100 is improved, mutual interference between the directional oscillator 200 and the omnidirectional oscillator 100 can be further prevented, and signal mixing effect can be improved. The reflector 210, the main vibrator 220 and the director 230 are all in a thin sheet structure, the reflector 210 is formed by a plurality of reflector vibrator sheets connected end to end, the adjacent reflector vibrator sheets are arranged at an obtuse angle or a right angle or an acute angle, the main vibrator 220 is a folded vibrator and is formed by a main vibrator 220 sheet with a T-shaped hollow, and the director 230 is formed by a director vibrator sheet.
As shown in fig. 1, the VHF element 300 is a dipole element and is formed of a pair of symmetrically arranged bent strip-shaped element pieces. The projection of the strip-shaped oscillator piece on the plane where the transverse axis and the longitudinal axis are located is in a symmetrical arc shape with opposite arc centers, the circumferential dimension of the integrated antenna is reduced on the premise of guaranteeing the oscillator length and the input impedance, and the miniaturization of the integrated antenna is better achieved. The arrangement mode of the UHF oscillator is shown in the plane of the transverse axis and the longitudinal axis, a certain distance is kept between the UHF oscillator and the UHF oscillator in the vertical axis direction, and a certain distance is also kept between the UHF oscillator and the UHF oscillator in the transverse axis and the longitudinal axis direction, so that the oscillator length is ensured to receive VHF frequency band signals as much as possible, and the receiving effect of other antenna oscillators is avoided.
As shown in fig. 5, in order to protect the vibrators and to ensure the relative positioning and fixing of the three sets of vibrators, the small integrated antenna generally further includes an antenna housing having a receiving cavity therein, and the antenna housing includes an upper case 410 and a lower case 420 that are fastened to each other to form the receiving cavity. The three groups of vibrators are installed and fixed in the accommodating cavity formed between the upper shell 410 and the lower shell 420, so that pollution of rainwater, fog and dust to the vibrators can be effectively prevented, and the influence on signal receiving and reflection is avoided.
As shown in fig. 6, a plurality of connection posts 411 are disposed at the top of the upper case 410, a plurality of connection holes 111 matching with the connection posts 411 are disposed on the substrate 110, and the omni-directional vibrator 100 is fixed at the top of the upper case 410 through the matching connection between the connection posts 411 and the connection holes 111. The connecting column 411 includes a fixing column 4111 with an internal threaded hole and a positioning column 4112 higher than the fixing column 4111, the fixing column 4111 and the positioning column 4112 are connected together by a reinforcing rib, the connecting hole 111 is formed by a set of fixing holes 1111 and positioning holes 1112 respectively matched with the fixing column 4111 and the positioning column 4112, when the omni-directional vibrator 100 is installed, firstly, the positioning column 4112 and the positioning holes 1112 are accurately positioned by matching, and then screws or bolts penetrate through the fixing holes 1111 and then are screwed to the internal threaded holes on the fixing column 4111, so that the omni-directional vibrator 100 is fixed.
As shown in fig. 7, the lower housing 420 is connected with three brackets 421 arranged in a line and spaced apart, and the spacing between the brackets 421 is the actual required spacing between the three constituent units of the directional element, so as to ensure the relative positions among the reflective oscillator piece, the main oscillator 220 piece and the guiding oscillator piece.
As shown in fig. 8, the bracket 421 is provided with a hook 4211, the reflection oscillator piece, the main oscillator 220 piece and the guiding oscillator piece are respectively provided with a hanging hole 204 matched with the hook 4211, and the reflection oscillator piece, the main oscillator 220 piece and the guiding oscillator piece are respectively supported and fixed on the 3 brackets 421 through the cooperation of the hook 4211 and the hanging hole 204. The height of the bracket 421 and the position of the hook 4211 are determined by the relative position requirements of the three groups of vibrators, which in turn ensures the relative positions of the three groups of vibrators, thereby ensuring the stability of signal reception and being beneficial to the automatic production of the integrated antenna.
Or the bracket 421 and the reflection oscillator piece, the main oscillator 220 piece and the guiding oscillator piece are respectively provided with a through hole, and the reflection oscillator piece, the main oscillator 220 piece and the guiding oscillator piece are respectively connected and fixed with the corresponding bracket 421 through the through holes by means of connecting pieces such as screws or bolts.
The support 421 is provided with a hook 4211, the reflective vibrator piece, the main vibrator 220 piece and the guiding vibrator piece are provided with hanging holes 204 matched with the hook 4211, the support 421 and the reflective vibrator piece, the main vibrator 220 piece and the guiding vibrator piece are provided with through holes, the reflective vibrator piece, the main vibrator 220 piece and the guiding vibrator piece are respectively supported and positioned on the corresponding support 421 through the cooperation of the hook 4211 and the hanging holes 204, and then are fixed through the cooperation of the through holes and connecting pieces such as screws or bolts.
As shown in fig. 9, the lower case 420 is provided with a plurality of positioning protrusions 422 spaced from the inner wall, and the strip-shaped vibrator sheet is sandwiched between the positioning protrusions 422 and the inner wall of the lower case 420. The strip-shaped oscillator piece is fixed through the matching action of the inner wall of the lower shell 420 and the positioning protrusions 422, so that the strip-shaped oscillator piece does not occupy the inner space of the shell, and does not interfere other two groups of oscillators, and the miniaturization design of the integrated antenna is ensured.
It is to be understood that the above examples of this patent are presented for purposes of illustration only and are not intended to limit the scope of the embodiments of this patent. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. that comes within the spirit and principles of the present patent should be included in the protection scope of the present patent claims.

Claims (8)

1. The miniature integrated antenna is characterized by comprising two groups of UHF oscillators and a group of VHF oscillators, wherein the UHF oscillators comprise a group of omnidirectional oscillators and a group of directional oscillators, the omnidirectional oscillators, the directional oscillators and the VHF oscillators are sequentially arranged along the vertical axis direction and distributed at intervals, and the reflection or receiving directions of the omnidirectional oscillators and the directional oscillators are perpendicular to the vertical axis direction;
the distance between the omnidirectional oscillator and the directional oscillator in the vertical axis direction is larger than 5mm;
the omnidirectional oscillator comprises a substrate, a wiring port and a plurality of oscillator units, wherein the substrate is perpendicular to the vertical axis, the wiring port is arranged at the center of the substrate and is connected to a signal processor through a coaxial cable, the oscillator units are distributed on the substrate around the circumferential array of the center of the substrate, each oscillator unit comprises a radiating part and a conducting part, each radiating part comprises a first radiating sheet and a second radiating sheet, the first radiating sheet is arranged on the substrate in parallel, the second radiating sheet is arranged on the edge of the substrate in perpendicular, the outer side edge of the first radiating sheet is connected with the inner side face of the second radiating sheet, the conducting part is arranged on the substrate in parallel, one end of each conducting part is connected with one end of the first radiating sheet, and the other end of each conducting part is connected with the wiring port.
2. The miniaturized integrated antenna of claim 1, wherein the radiating portion further comprises a third radiating patch disposed parallel to and spaced apart from the substrate, an outer edge of the third radiating patch being connected to an inner side of the second radiating patch.
3. The small integrated antenna according to claim 1 or 2, further comprising an antenna housing having a receiving cavity therein, wherein the antenna housing includes an upper housing and a lower housing that are fastened to each other to form the receiving cavity, a plurality of connection posts are disposed on a top of the upper housing, a plurality of connection holes matched with the connection posts are disposed on the substrate, and the omni-directional vibrator is fixed on the top of the upper housing through the cooperative connection of the connection posts and the connection holes.
4. The miniature integrated antenna of claim 1, wherein said directional element is a yagi antenna element comprising a reflector, a main element and a director disposed in a sequential order perpendicular to the vertical axis.
5. The small integrated antenna according to claim 4, wherein the reflector, the main oscillator and the director are all of a thin sheet structure, the reflector is composed of a plurality of reflection oscillator pieces connected end to end, the adjacent reflection oscillator pieces are arranged at an obtuse angle or a right angle or an acute angle, the main oscillator is a folded oscillator and is composed of main oscillator pieces with T-shaped hollowed-out parts, and the director is composed of guide oscillator pieces.
6. The small integrated antenna according to claim 5, further comprising an antenna housing having a receiving cavity therein, wherein the antenna housing comprises an upper housing and a lower housing which are fastened to each other to form the receiving cavity, three supports arranged in a row and spaced apart from each other are connected to the lower housing, hooks are arranged on the supports, hanging holes matched with the hooks are formed in the reflecting oscillator piece, the main oscillator piece and the guiding oscillator piece, and the reflecting oscillator piece, the main oscillator piece and the guiding oscillator piece are respectively supported and fixed on the 3 supports through the cooperation of the hooks and the hanging holes.
7. A compact integrated antenna as recited in claim 1, characterised in that said VHF element is a dipole element formed by a pair of symmetrically arranged bent strip-shaped element pieces.
8. The small integrated antenna as claimed in claim 7, further comprising an antenna housing having a receiving cavity therein, wherein the antenna housing includes an upper housing and a lower housing that are fastened to each other to form the receiving cavity, a plurality of positioning protrusions are disposed on the lower housing and spaced apart from the inner wall, and the strip-shaped dipole sheet is sandwiched between the positioning protrusions and the inner wall of the lower housing.
CN201811340412.4A 2018-11-12 2018-11-12 Small integrated antenna Active CN109301503B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5534880A (en) * 1993-03-18 1996-07-09 Gabriel Electronics Incorporated Stacked biconical omnidirectional antenna
WO2011107597A1 (en) * 2010-03-04 2011-09-09 Tdf Antenna structure having dipoles
CN103346392A (en) * 2013-06-08 2013-10-09 哈尔滨工程大学 Mobile phone antenna with reconfigurable directional diagram
WO2014012311A1 (en) * 2012-07-20 2014-01-23 深圳市龙侨华实业有限公司 Omnidirectional television receiver antenna and modular television antenna employing the antenna
CN208955200U (en) * 2018-11-12 2019-06-07 深圳市安拓浦科技有限公司 It is a kind of small-sized antenna integrated

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5534880A (en) * 1993-03-18 1996-07-09 Gabriel Electronics Incorporated Stacked biconical omnidirectional antenna
WO2011107597A1 (en) * 2010-03-04 2011-09-09 Tdf Antenna structure having dipoles
WO2014012311A1 (en) * 2012-07-20 2014-01-23 深圳市龙侨华实业有限公司 Omnidirectional television receiver antenna and modular television antenna employing the antenna
CN103346392A (en) * 2013-06-08 2013-10-09 哈尔滨工程大学 Mobile phone antenna with reconfigurable directional diagram
CN208955200U (en) * 2018-11-12 2019-06-07 深圳市安拓浦科技有限公司 It is a kind of small-sized antenna integrated

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