CN210120549U

CN210120549U - Three-dimensional structure multichannel WIFI signal transceiver

Info

Publication number: CN210120549U
Application number: CN201921641553.XU
Authority: CN
Inventors: 张少林; 崔立成; 赵立斌
Original assignee: Shenzhen City Weifu Communication Technology Co Ltd
Current assignee: Shenzhen City Weifu Communication Technology Co Ltd; Shenzhen Wave Technology Co Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-02-28
Anticipated expiration: 2029-09-29

Abstract

The utility model relates to a spatial structure multichannel WIFI signal transceiver. The device includes the wireless hot spot device that quantity equals and connect gradually, band-pass filter, device and antenna switching device are moved to frequency, form the signal transmission passageway of many input-output, improve data transmission efficiency, antenna device includes two at least antenna element, antenna element includes the more than two-layer base plate of range upon range of setting and sets up in the antenna array of base plate, antenna array comprises the antenna element that the array set up, the antenna element division that per two are more than obtains interconnect's group battle array, through connecting wire interconnect between the group battle array, each antenna switching device connects the connecting wire of the antenna element who corresponds respectively. The frequency moving device moves the signal to a low frequency band and then transmits the signal through the antenna device, the coverage range of the WIFI signal is enlarged, the WIFI signal is suitable for severe weather, the antenna device is of a three-dimensional structure, the gain of the wave beam on the vertical surface of the antenna unit is high, and the use reliability is high.

Description

Three-dimensional structure multichannel WIFI signal transceiver

Technical Field

The utility model relates to a wireless technology field especially relates to a spatial structure multichannel WIFI signal transceiver.

Background

WIFI is a wireless local area network technology established in the IEEE 802.11 standard, and improves the interoperability between wireless network products based on the standard. WIFI belongs to a short-distance wireless technology, has the advantages of high transmission speed, low transmitting power, no need of wiring and the like, can meet personal and social informatization requirements, can automatically adjust bandwidth under the condition of weak signals, and effectively ensures the stability and reliability of a network.

The coverage range of the WIFI signal transmitted by the traditional WIFI signal transmission device is limited, a user cannot receive the WIFI signal in an area beyond the coverage range of the WIFI, normal use of the user is affected, and reliability is low.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a stereo-structure multi-channel WIFI signal transceiver device for solving the problem of low reliability of the conventional WIFI signal transmission device.

A multi-channel WIFI signal receiving and transmitting device with a three-dimensional structure is characterized by comprising a wireless hotspot device, a band-pass filtering device, a frequency moving device, an antenna switching device and an antenna device, wherein the wireless hotspot device is connected with the band-pass filtering device, the band-pass filtering device is connected with the frequency moving device, and the frequency moving device is connected with the antenna switching device;

the antenna device comprises at least two antenna units, each antenna unit comprises two or more layers of substrates and antenna arrays arranged on the substrates, each layer of substrates are mutually stacked, the antenna arrays of each layer of substrates are composed of antenna oscillators arranged in an array, every two or more antenna oscillators in each layer of substrates are divided into groups, the groups in each layer of substrates are mutually connected, the groups of the substrates in each layer are mutually connected through connecting wires, the number of the antenna switch devices is more than two, each antenna switch device is respectively connected with the connecting wires of the corresponding antenna units, the number of the frequency shifting devices, the number of the band-pass filter devices and the number of the wireless hot spot devices are equal to the number of the antenna switch devices, and each frequency shifting device is respectively connected with the corresponding band-pass filter devices, and each band-pass filtering device is respectively connected with the corresponding wireless hotspot device.

Above-mentioned spatial structure multichannel WIFI signal transceiver, wireless hotspot device are used for producing the WIFI signal, and the WIFI signal that produces sends to the frequency after band-pass filter device filters and removes the device, and the frequency that the device can realize the signal is removed to the frequency, removes the high band signal to the low frequency channel, and the signal after removing is through antenna switching device and antenna device transmission again. Because the low-frequency band signal wavelength is longer, and the penetrating power is stronger, move the WIFI signal to the low-frequency band after the rethread antenna device launches can increase the coverage of WIFI signal, and do not receive the separation of barriers such as building or trees, more be adapted to bad weather. The antenna device comprises at least two antenna units, the antenna units are divided by antenna oscillators on each layer of substrate to obtain a group array, after the group array is divided, the group array of each layer of substrate is connected with each other through a connecting wire to form an antenna array of a three-dimensional space structure, the antenna units are matched with each other to work, the gain of the antenna units to beams on a vertical plane is increased, and the communication performance of the antenna device is improved. The number of the antenna switching devices is more than two, each antenna switching device is respectively connected with the connecting line of the corresponding antenna unit, the number of the frequency moving devices, the number of the band-pass filtering devices and the number of the wireless hotspot devices are equal to the number of the antenna switching devices, each frequency moving device is respectively connected with the corresponding band-pass filtering device, each band-pass filtering device is respectively connected with the corresponding wireless hotspot device, a multi-input multi-output signal transmission channel can be formed, the data transmission efficiency is improved, and the use reliability is improved.

Drawings

Fig. 1 is a structural diagram of a multi-channel WIFI signal transceiver with a stereo structure in one embodiment;

fig. 2 is a structural diagram of a multi-channel WIFI signal transceiver with a stereo structure in another embodiment;

FIG. 3 is a block diagram of an antenna assembly in one embodiment;

FIG. 4 is a block diagram of a substrate in an antenna unit and an antenna element on the substrate in one embodiment;

fig. 5 is a structural diagram of a multi-channel WIFI signal transceiver with a stereo structure in yet another embodiment;

fig. 6 is a block diagram of a stereo-structure multi-channel WIFI signal transceiver in yet another embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is described more fully below by way of examples in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In an embodiment, please refer to fig. 1, which provides a multi-channel WIFI signal transceiver with a three-dimensional structure, including a wireless hotspot device 100, a band-pass filter device 200, a frequency shifting device 300, an antenna switch device 400 and an antenna device 500, wherein the wireless hotspot device 100 is connected to the band-pass filter device 200, the band-pass filter device 200 is connected to the frequency shifting device 300, and the frequency shifting device 300 is connected to the antenna switch device 400. The antenna device 500 includes at least two antenna units, each of which includes two or more layers of substrates 512 and an antenna array disposed on each of the layers of substrates, the layers of substrates are stacked on top of each other, the antenna array of each layer of substrate is composed of antenna elements 514 arranged in an array, every two or more antenna elements in each layer of substrate are divided into groups, the groups in each layer of substrate are connected with each other, the groups of each layer of substrate are connected with each other through connecting wires, the number of the antenna switch devices 400 is more than two, and each antenna switch device 400 is connected to the corresponding connection line of the antenna unit, the number of the frequency moving device 300, the band-pass filter device 200 and the wireless hot spot device 100 is equal to the number of the antenna switch devices 400, each frequency moving device 300 is connected to a corresponding band-pass filter device 200, and each band-pass filter device 200 is connected to a corresponding wireless hotspot device 100.

The wireless hotspot device 100 is configured to generate a WIFI signal, the generated WIFI signal is filtered by the band-pass filter device 200 and then sent to the frequency moving device 300, the frequency moving device 300 can move the frequency of the signal, the high-frequency band signal is moved to the low-frequency band, and the moved signal is transmitted through the antenna switch device 400 and the antenna device 500. Because the low-frequency band signal wavelength is longer, and the penetrating power is stronger, move the WIFI signal to the low-frequency band after the rethread antenna device 500 launches can increase the coverage of WIFI signal, and do not receive the separation of barriers such as building or trees, more be adapted to bad weather.

The antenna device 500 comprises at least two antenna units, the antenna units are divided into the array groups by the antenna oscillators 514 on each layer of substrate, after the array groups are divided, the array groups of each layer of substrate 512 are connected with each other through connecting lines to form an antenna array with a three-dimensional space structure, the antenna units are matched with each other to work, the gain of the antenna units on beams on the vertical plane is increased, and the communication performance of the antenna device 500 is improved. The number of the antenna switch devices 400 is more than two, each antenna switch device 400 is connected with the corresponding connecting line of the antenna unit, each frequency moving device 300 is connected with the corresponding band-pass filter device 200, each band-pass filter device 200 is connected with the corresponding wireless hotspot device 100, a multi-input multi-output signal transmission channel can be formed, and the data transmission efficiency and the use reliability are improved.

Specifically, the wireless hotspot device 100 mainly provides access of the stereo-structure multichannel WIFI signal transceiver to the wired local area network and from the wired local area network to the stereo-structure multichannel WIFI signal transceiver, and wireless workstations within the access point coverage area of the wireless hotspot device 100 can communicate with each other through the wireless hotspot device. When the WIFI signal is transmitted, the wireless hotspot device 100 is connected to the network to process and then transmits the processed signal to the band-pass filter device 200 in the form of the WIFI signal, the band-pass filter device 200 transmits the filtered signal to the frequency moving device 300, the frequency moving device 300 can move the frequency of the signal, the signal in the high frequency band is moved to the low frequency band, and the moved signal is transmitted through the antenna switch device 400 and the antenna device 500. When receiving a WIFI signal, the antenna device 500 may sense an electromagnetic signal in a space and then transmit the electromagnetic signal to the antenna switch device 400, the antenna switch device 400 transmits the signal to the frequency moving device 300, the frequency moving device 300 may move the frequency of the signal, a low-frequency band signal is moved to a high-frequency band, the moved signal is transmitted to the band-pass filter device 200 for filtering, the filtered signal is transmitted to the wireless hotspot device 100, and a user may access the multi-channel WIFI signal transceiver of the three-dimensional structure from the wired lan through the wireless hotspot device 100.

The band-pass filter 200 is mainly used to filter the signals flowing through, allowing the signals in a specific frequency band to pass through while shielding the signals in other frequency bands. According to different actual requirements, the bandpass filtering device 200 with different structures can be adopted, so that the signals of the reserved and filtered frequency bands are different, and the application range is wider.

The frequency shifting device 300 uses analog mixer technology to shift the high-band signal to the low-band signal or shift the low-band signal to the high-band signal, the structure of the frequency shifting device 300 is not unique, for example, an analog multiplier frequency converter or a crystal triode mixer may be used, and it can be understood that the frequency shifting device 300 may also use other structures as long as those skilled in the art can realize the frequency shifting device.

The number of the frequency moving devices, the number of the band-pass filtering devices and the number of the wireless hotspot devices are equal to the number of the antenna switching devices, each frequency moving device is respectively connected with the corresponding band-pass filtering device, each band-pass filtering device is respectively connected with the corresponding wireless hotspot device, in each signal channel, one antenna switching device is correspondingly connected with one frequency moving device, one band-pass filtering device is correspondingly connected with one frequency moving device, one wireless hotspot device is correspondingly connected with one band-pass filtering device, the independence of signal transmission among the channels can be kept, the mutual interference of signals is avoided, the three-dimensional structure multi-channel WIFI signal transceiving device comprises a plurality of signal channels, and the application range is large.

The antenna switching device 400 can control the on-off of signals between the antenna device 500 and the frequency moving device 300, when the three-dimensional structure multi-channel WIFI signal receiving and transmitting device is required to work, the antenna switching device 400 is switched on, signals can be normally transmitted between the antenna device 500 and the frequency moving device 300, and when the antenna switching device 400 is switched off, the three-dimensional structure multi-channel WIFI signal receiving and transmitting device is in a standby state. Antenna device 500 is the carrier of receiving and sending signal, and antenna device 500 can sense the electromagnetic signal in the space, also can go out signal propagation, realizes the receiving and dispatching of WIFI signal, and it is convenient to use. The number of the antenna switch devices 400 is two or more, and each antenna switch device 400 is connected to a corresponding antenna unit, further, the number of the antenna units connected to each antenna switch device 400 may be completely the same, partially the same, or completely different, and each antenna switch device 400 is connected to a corresponding antenna unit to form a signal transceiving channel, thereby forming a multi-input multi-output structure. In an embodiment, the number of the antenna units respectively connected to each antenna switch device 400 is different from each other, for example, the number of the antenna units connected to each antenna switch device 400 may be sequentially increased, and the corresponding signal transceiving channels may be selected to operate according to actual requirements, so that the operation convenience of the multi-channel WIFI signal transceiving device with a three-dimensional structure is improved.

The number of the substrates 512 in the antenna unit is not limited, and the antenna unit may be configured by two layers of the substrates 512, or may be configured by three or more layers of the substrates 512. Referring to fig. 3, each of the substrates 512 has an antenna array, where the antenna array includes a plurality of antenna elements 514, the number of the antenna elements 514 may be two or more, for example, 8 × 8 antenna elements 514 are arranged in a rectangle to form 8 rows and 8 columns, thereby forming an antenna array. The antenna elements 514 in the antenna array may be divided into two groups as shown in fig. 3, or may be divided into three groups, or may be correspondingly divided into three or more groups, where a group is that two or more antenna elements 514 are connected to form a group. The antenna elements 514 of the antenna array may be divided into a plurality of groups.

Further, a spatial rectangular coordinate system may be established, each layer of substrate 512 is regarded as a plane, each layer of substrate 512 is parallel to an XOY plane in the spatial rectangular coordinate system, the antenna elements 514 on each layer of substrate 512 are laid along the X-axis and Y-axis directions, respectively, and then each layer of substrate 512 is arranged in a vertical layout along the Z-axis direction, so that the antenna unit is formed into a three-dimensional spatial structure. It should be noted that, after two or more antenna elements 514 on each layer of substrate in the antenna unit are divided to obtain the group arrays, each group array may have a corresponding lead led out from the substrate, so that a plurality of leads are led out from each layer of substrate, then the substrate is connected with the plurality of leads led out from the substrate correspondingly, and finally, the group arrays are collected through corresponding connectors or joints, and connected with the antenna switch device 200 at the rear end, and the received signals are processed through the antenna switch device 200 at the rear end. Further, in other embodiments, after two or more antenna elements 514 on each layer of substrate 512 are divided to obtain a group array, the group arrays on the substrate are connected to each other first, and then are led out from the substrate through a bus, that is, only one bus is led out from each layer of substrate, then the buses between the substrates are connected to each other, and finally are collected through corresponding connectors or joints, and connected to the antenna switch device 200 at the rear end, and the received signals are processed through the antenna switch device 200 at the rear end.

In one embodiment, referring to fig. 2, the band-pass filtering device 200 includes a first band-pass filter 210 and a second band-pass filter 220, the frequency shifting device 300 includes a transmitting channel frequency shifter 310 and a receiving channel frequency shifter 320, the first band-pass filter 210 is connected to the wireless hot spot device 100, the transmitting channel frequency shifter 310 is connected to the first band-pass filter 210, the antenna switch device 400 is connected to the transmitting channel frequency shifter 310, the second band-pass filter 220 is connected to the wireless hot spot device 100, the receiving channel frequency shifter 320 is connected to the second band-pass filter 220, and the antenna switch device 400 is connected to the receiving channel frequency shifter 320.

Specifically, in the multi-channel WIFI signal transceiver with a three-dimensional structure, transmission and reception of WIFI signals are transmitted through a signal transmitting channel and a signal receiving channel respectively, the signal transmitting channel includes a first band-pass filter 210 and a transmitting channel frequency shifter 310, and the signal receiving channel includes a second band-pass filter 220 and a receiving channel frequency shifter 320. When transmitting a signal, the wireless hotspot device 100 generates a WIFI signal, the frequency of the generated signal is generally high, only a signal of a specific frequency band is reserved after the high-frequency signal is transmitted to the first band-pass filter 210, and then the signal is transmitted to the first frequency shifter, the signal of the specific frequency band is shifted to a low frequency band by the first frequency shifter and then is transmitted to the antenna switch device 400, the antenna device 500 receives the signal transmitted by the antenna switch device 400 and then radiates to the space, and the transmission of the WIFI signal is completed. Since the signal transmitted by the antenna device 500 is a low-frequency band signal, the penetration capability is strong, and the signal coverage is large. When receiving a signal, the antenna device 500 receives an electromagnetic signal of a space and sends the electromagnetic signal to the second band-pass filter 220 via the antenna switch device 400, the second band-pass filter 220 filters out clutter in the signal and then sends the clutter to the wireless hotspot device 100, and the wireless hotspot device 100 processes the signal and then receives a WIFI signal.

In this embodiment, taking the example that the number of the antenna elements connected to each antenna switch device 400 is sequentially increased, the number of the antenna switch devices 400 is N, the first antenna switch device 400 is connected to two antenna elements, the second antenna switch device 400 is connected to three antenna elements, and so on, the nth antenna switch device 400 is connected to N +1 antenna elements. Taking the first antenna switch device 400 as an example, two antenna units are connected to the antenna switch device 400, the antenna switch device 400 is sequentially connected to the transmitting channel frequency shifter 310, the first band pass filter 210 and the wireless hot spot device 100, and the antenna switch device 400 is further sequentially connected to the receiving channel frequency shifter 320, the second band pass filter 220 and the wireless hot spot device 100 to form a signal transmitting channel and a signal receiving channel, respectively. Each antenna switch device 400 is independently provided with one frequency moving device 300 and one band-pass filter device 200 to form a plurality of signal transmitting channels and signal receiving channels, so that multi-beam configuration can be realized, and the application range of the multi-channel WIFI signal transceiver with the three-dimensional structure can be expanded. Since the number of antenna elements connected to each antenna switch device 400 is different, the gain effect of each antenna switch device 400 is also different, specifically, the larger the number of antenna elements is, the higher the gain is. During the in-service use, can put into use according to needs such as signal strength and coverage adjustment corresponding quantity's antenna element, be favorable to the rational utilization resource, improve spatial structure multichannel WIFI signal transceiver's use reliability.

The types of the first band pass filter 210, the second band pass filter 220, the transmission channel frequency shifter 310, and the reception channel frequency shifter 320 are not unique, in this embodiment, taking the high-band signal frequency as 2.4GHz and the low-band signal frequency as 700MHz as an example, both the first band pass filter 210 and the second band pass filter 220 are 2.4GHz band pass filters, which only allow signals with a frequency of 2.4GHz to pass through, and filter signals with other frequencies, thereby improving the quality of transmission signals. The transmission channel frequency shifter 310 is a 2.4GHz to 700MHz frequency shifter, converts a high-frequency signal with a frequency of 2.4GHz into a low-frequency signal with a frequency of 700MHz, and then transmits the low-frequency signal through the antenna switch device 400 by the antenna device 500, which is beneficial to improving the coverage of the signal. The receiving channel frequency shifter 320 is a 700MHz to 2.4GHz frequency shifter, converts a low-frequency signal with a frequency of 700MHz into a high-frequency signal with a frequency of 2.4GHz, and sends the high-frequency signal to the second band-pass filter 220, and the second band-pass filter 220 filters out signals with other frequencies and only keeps signals with a frequency of 2.4GHz and sends the signals to the wireless hotspot device 100 for network conversion and sharing, which is beneficial to improving the working performance of WIFI signals. It is understood that the frequency of the high band signal is not limited to 2.4GHz, but may also be 3.5GHz, 5.8GHz or other frequencies, and the frequency of the low band signal is not limited to 700MHz, but may also be 400MHz, 800MHz, 900MHz, 1800MHz, 1900MHz, 2100MHz, 3300MHz or other frequencies, as long as one skilled in the art can realize the purpose. The transmission and the reception of signals are realized by different lines, so that the mutual interference between a transmitting channel and a receiving channel can be reduced, and the performance of signal transmission is improved.

The switching of the working state of receiving or transmitting the WIFI signal may also be implemented by the antenna switching device 400, and the antenna switching device 400 includes a signal receiving circuit, a signal transmitting circuit and a switch, and the switch is connected to the antenna device 500, connected to the receiving channel frequency shifter 320 through the signal receiving circuit, and connected to the transmitting channel frequency shifter 310 through the signal transmitting circuit. When the switch is turned on, the antenna switching device 400 controls the antenna device 500 to be in a transmitting state, when the switch is turned on, the antenna switching device 400 controls the antenna device 500 to be in a receiving state, and when the switch is turned on, the antenna device 500 does not operate and the device is in a shutdown state. The switch may be connected to the controller, and the transmission, reception, or shutdown operation state of the antenna apparatus 500 may be switched according to a control signal sent by the controller, or the switch may be manually controlled, and the user manually switches the operation state according to his own requirement.

In an embodiment, referring to fig. 2, the three-dimensional multi-channel WIFI signal transceiver further includes a third band-pass filter 610, wherein one end of the third band-pass filter 610 is connected to the transmission channel frequency shifter 310, and the other end is connected to the antenna switch device 400.

The type of the third band pass filter 610 is not unique, and for example, the high-band signal frequency is 2.4GHz, and the low-band signal frequency is 700MHz, the transmission channel frequency shifter 310 is a 2.4GHz to 700MHz frequency shifter, and can convert the high-frequency signal with the frequency of 2.4GHz into a low-frequency signal with the frequency of 700MHz and send the low-frequency signal to the third band pass filter 610, and the third band pass filter 610 is a 700MHz band pass filter, so that it can be ensured that the signal sent to the antenna switching device 400 only includes the low-frequency signal with the frequency of 700MHz, and the purity of the signal is improved. It is understood that in other embodiments, the third band pass filter 610 may also be a band pass filter of other frequencies, and is determined by the frequency of the signal converted by the transmission channel frequency shifter 310 connected to the band pass filter, so as to ensure the frequency requirement of the signal.

In an embodiment, referring to fig. 2, the stereo-structure multi-channel WIFI signal transceiver further includes a transmitting channel amplifier 710 and a receiving channel amplifier 720, wherein one end of the transmitting channel amplifier 710 is connected to the transmitting channel frequency shifter 310, the other end of the transmitting channel amplifier 710 is connected to the third band-pass filter 610, one end of the receiving channel amplifier 720 is connected to the receiving channel frequency shifter 320, and the other end of the receiving channel amplifier 720 is connected to the antenna switch apparatus 400. The transmit channel amplifier 710 and the receive channel amplifier 720 may amplify signals to improve reliability of signal transmission.

Specifically, the types of the transmission channel amplifier 710 and the reception channel amplifier 720 are not unique, for example, in this embodiment, the transmission channel amplifier 710 is a power amplifier, the reception channel amplifier 720 is a low noise amplifier, when sending a WIFI signal, the wireless hotspot device 100 sends the signal to the power amplifier for power amplification, so that the output signal has a sufficiently large power to meet the requirement, and the amplified signal is radiated into the space by the antenna device 500 through the antenna switch device 400, thereby realizing sending of the WIFI signal. When receiving a WIFI signal, the antenna device 500 may sense an electromagnetic signal in the space and then send the electromagnetic signal to the antenna switching device 400, the antenna switching device 400 transmits the signal to the low noise amplifier for amplification, and the amplified signal is sent to the wireless hotspot device 100 via the band-pass filter device 200 to be demodulated to obtain the WIFI signal, so that the WIFI signal is received. It is understood that in other embodiments, the transmit path amplifier 710 and the receive path amplifier 720 may be other types of amplifiers, as deemed practicable by those skilled in the art.

In one embodiment, referring to fig. 3, the antenna elements 514 are dual-polarized elements, and each two or more dual-polarized elements in each layer of the substrate 512 are divided to obtain an array. The dual-polarized oscillator comprises two antennas with positive 45-degree polarization directions and negative 45-degree polarization directions orthogonal to each other, namely the antenna with the 12-point clock direction as a reference and with the 45-degree clockwise rotation position as the positive 45-degree, and the antenna with the 45-degree counterclockwise rotation position as the negative 45-degree. Each layer of the substrate 512 may be formed by connecting and dividing two dual-polarized oscillators as shown in fig. 4 to obtain a group array, or by connecting and dividing more than two dual-polarized oscillators to obtain a group array, and accordingly, the antenna array of each layer of the substrate 512 may be divided to obtain a plurality of group arrays, and the plurality of group arrays are connected to each other to form an antenna array, thereby improving the gain of the whole stereo antenna apparatus 100.

In one embodiment, referring to fig. 4, the dual-polarized oscillators on the substrate 512 include positive 45-degree oscillators and negative 45-degree oscillators, the positive 45-degree oscillators and the negative 45-degree oscillators are orthogonally arranged, the positive 45-degree oscillators of the dual-polarized oscillators of each array in the substrate 512 are connected to each other, and the negative 45-degree oscillators of the dual-polarized oscillators are connected to each other.

Each array of the antenna array comprises at least two positive 45-degree oscillators and two negative 45-degree oscillators, and in each array, the positive 45-degree oscillators are connected with the positive 45-degree oscillators, and the negative 45-degree oscillators are connected with the negative 45-degree oscillators (for example, in fig. 4, the two positive 45-degree oscillators are connected with the positive 45-degree oscillators, and the two negative 45-degree oscillators are connected with the negative 45-degree oscillators), so that the antenna device can obtain gains in two working modes of receiving electromagnetic wave signals and transmitting electromagnetic wave signals, and the communication performance of the whole antenna device is improved.

In one embodiment, referring to fig. 3, the positive 45-degree oscillators in the array of each layer of the substrate 512 are connected with each other and then connected through a positive connection line; negative 45-degree vibrators in the array of each layer of substrate 512 are connected with each other and then connected through a negative connecting wire.

The positive connecting line and the negative connecting line can be the same type of connecting line, and the difference between the positive connecting line and the negative connecting line is that the positive 45-degree oscillator in the array is connected to the positive connecting line, and the negative 45-degree oscillator in the array is connected to the negative connecting line. In each layer of the substrate 512, positive 45-degree oscillators in different arrays are connected with each other, and negative 45-degree oscillators are connected with each other. It can be understood that the positive 45-degree oscillators of different arrays in the same substrate 512 can be connected through a common line, and the negative 45-degree oscillators of different arrays can also be connected through a common line. After the oscillators between different arrays in each substrate 512 are connected, the positive 45-degree oscillators in the arrays of each substrate 512 are connected through the positive connecting lines, and the negative 45-degree oscillators in the arrays of each substrate 512 are connected through the negative connecting lines, so that the transceiving gain of the three-dimensional antenna device 100 is improved. It will be appreciated that the positive and negative connection lines may equally well be a single common line.

In one embodiment, referring to fig. 4, each row of antenna elements 514 in the antenna array of each layer of substrate 512 is divided into groups. Specifically, the antenna array includes a plurality of rows and a plurality of columns of elements, and when the array is divided, the array is obtained by dividing the elements of each row, for example, when the antenna array has 8 rows of elements, and each row is composed of 8 dual-polarized elements, one row may be divided into 4 arrays according to two dual-polarized elements as a group, and correspondingly, in other embodiments, 8 dual-polarized elements of the same row may also be directly divided into one array.

In one embodiment, the antenna elements are spaced apart by a distance that is half the wavelength of the antenna center frequency. Through setting up corresponding spacing distance between the antenna element, can avoid each antenna element to produce the interference each other in the course of the work, guarantee that antenna device can normally work.

In one embodiment, a certain distance is preset between the substrates of each layer, so that signals between adjacent substrates are ensured not to affect each other, and the communication performance of the antenna device can be improved when the antenna device is configured.

In one embodiment, the substrate 512 is a metal substrate 512. The metal substrate 512 has high mechanical strength, the metal substrate 512 is used as a carrier of the antenna array, the antenna array can be protected, and the metal substrate has the advantages of corrosion resistance, good heat dissipation, good processing performance and the like, is low in processing difficulty and low in manufacturing cost, and can effectively prolong the service life of the antenna device 500. It is understood that in other embodiments, the substrate 512 may be made of other materials as long as the implementation is considered by those skilled in the art.

In one embodiment, the substrates 512 are the same size. The difficulty in installation can be reduced by adopting the substrates 512 with the same size, and further, the number of the antenna arrays arranged on each substrate 512 can be equal, so that the workload of WIFI signal receiving and transmitting is basically balanced on each antenna layer, and the complexity of signal processing can be reduced. It is understood that, in other embodiments, the size of each substrate 512 or the number of antenna arrays disposed on each substrate 512 may also be different, and may be adjusted according to actual requirements. Further, the shape of the substrate 512 is not unique, for example, the substrate 512 may be rectangular, which is convenient for the antenna array to be arranged in different arrangement modes, and is also convenient for the substrate 512 to be split or recombined during early installation or post-processing, so as to meet different requirements of different occasions, and the antenna is convenient and fast to use and has high reliability.

In one embodiment, the substrates 512 are connected by connectors. The base plate 512 is connected through the connecting piece and can play good fixed action to each base plate 512, and in addition, when being swing joint's relation between connecting piece and the base plate 512, each base plate 512 passes through the connecting piece and connects the installation and the split that can be convenient for base plate 512, and it is convenient to use. Specifically, the position of the connecting member on the substrate 512 is not unique, and for example, the connecting member may be disposed at the center of the substrate 512 to perform a good fixing function, or may be disposed at other positions of the substrate 512, which may be specifically adjusted according to actual requirements. It is understood that in other embodiments, the substrates 512 can be connected in other manners, such as adhesion, which is simple and low-cost.

In one embodiment, the number of connectors is more than two. The number of the connecting members is not unique, for example, when the number of the connecting members is two, two connecting members can be respectively disposed at both ends of a diagonal line of the substrate 512, which is beneficial to the stability of the substrate 512, when the number of the connecting members is three, the three connecting members can be disposed according to the triangular shape layout, so that the substrates 512 can be better fixed, and when the number of the connecting members is four, the four connecting members can be respectively disposed at four corners of the substrate 512, thereby ensuring the firmness of connection between the substrates 512. It is understood that in other embodiments, the number of the connecting members may be 1, as long as the purpose of connecting the substrates 512 can be achieved by those skilled in the art. The material of connecting piece is also not exclusive, for example can adopt the resin connecting piece, and the resin can melt after being heated, the type of being convenient for, and its cost is lower, adopts the resin connecting piece can reduce the use cost of the WIFI signal transceiver of three-dimensional overall arrangement.

For a better understanding of the above-described embodiments, reference will now be made in detail to two specific embodiments,

representing one antenna element. In one embodiment, referring to fig. 5, a conventional WIFI AP (Access Point) (e.g., 2.4GHz) is used to transmit (receive) a signal through a stereo antenna by frequency shifting to a low frequency band (e.g., 700MHz) suitable for large-scale coverage. In one embodiment, referring to fig. 6, the signal is amplified and then transmitted (received back) through a stereo antenna by frequency shifting to a lower frequency band (e.g., 700MHz) that is preferably covered by a large range using a conventional WIFI AP (e.g., 2.4 GHz). Through the three-dimensional group array that a plurality of antenna element are constituteed, improve the whole gain of antenna, utilize the good characteristics of low frequency signal transmission characteristic, improve the coverage effect, utilize the characteristics of three-dimensional array antenna high gain, solve the shortcoming that present WIFI transmission distance is close, synthesize two advantages of three-dimensional antenna and low frequency band transmission, can realize that WIFI covers by a wide margin.

Taking the antenna unit comprising N layers of substrates as an example, the antenna array on each layer of substrate is provided with Y rows, each row is provided with Y dual-polarized antenna elements, X dual-polarized antenna elements in each row are divided into a group array, positive 45-degree elements in the X dual-polarized antenna elements in each group array are connected with each other, positive 45-degree elements of adjacent group arrays are connected through a common line, and then a positive connecting line is led out. Negative 45-degree oscillators in X dual-polarized antenna oscillators in each array are connected with each other, negative 45-degree oscillators in adjacent arrays are connected through a common line, and then a negative connecting line is led out to form a 1-to-X mode. Finally, the positive connecting lines led out from each layer of the substrate are connected with each other, the negative connecting lines led out from each layer of the substrate are connected with each other, and finally, a 1-to-X-N array form is formed, so that the antenna unit with the three-dimensional layout is obtained. When two dual-polarized antenna elements in each column of the antenna array are divided into one array, the antenna gain is doubled by constructing an N-layer three-dimensional antenna array, so that the antenna array originally composed of 2 antenna elements is increased to an array composed of 2 × N antenna elements, theoretically, if N is 2, X is 2 (i.e., 1 drags 2 × 2), the antenna gain can be increased by 3dB, if N is 2, X is 3 (i.e., 1 drags 3 × 2), the antenna gain can be increased by 5dB, if N is 2, X is 5 (i.e., 1 drags 5 × 2), the antenna gain can be increased by 7dB, and if N is 2, X is 10 (i.e., 1 drags 10 × 2), the antenna gain can be increased by 10 dB.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A multi-channel WIFI signal receiving and transmitting device with a three-dimensional structure is characterized by comprising a wireless hotspot device, a band-pass filtering device, a frequency moving device, an antenna switching device and an antenna device, wherein the wireless hotspot device is connected with the band-pass filtering device, the band-pass filtering device is connected with the frequency moving device, and the frequency moving device is connected with the antenna switching device;

2. The apparatus according to claim 1, wherein the band-pass filter device comprises a first band-pass filter and a second band-pass filter, the frequency shifter device comprises a transmitting channel frequency shifter and a receiving channel frequency shifter, the first band-pass filter is connected to the wireless hot spot device, the transmitting channel frequency shifter is connected to the first band-pass filter, the antenna switch device is connected to the transmitting channel frequency shifter, the second band-pass filter is connected to the wireless hot spot device, the receiving channel frequency shifter is connected to the second band-pass filter, and the antenna switch device is connected to the receiving channel frequency shifter.

3. The apparatus of claim 2, further comprising a third band-pass filter, wherein one end of the third band-pass filter is connected to the transmission channel frequency shifter, and the other end of the third band-pass filter is connected to the antenna switching device.

4. The apparatus according to claim 3, further comprising a transmission channel amplifier and a reception channel amplifier, wherein one end of the transmission channel amplifier is connected to the transmission channel frequency shifter, the other end of the transmission channel amplifier is connected to the third band pass filter, one end of the reception channel amplifier is connected to the reception channel frequency shifter, and the other end of the reception channel amplifier is connected to the antenna switching device.

5. The device of claim 1, wherein the antenna elements are dual-polarized elements, and each two or more dual-polarized elements in each layer of the substrate are divided to obtain a group array.

6. The device of claim 5, wherein the dual-polarized vibrator comprises a positive 45-degree vibrator and a negative 45-degree vibrator, and the positive 45-degree vibrator is arranged orthogonally to the negative 45-degree vibrator; the positive 45-degree oscillators of the dual-polarized oscillators of each array in the substrate are connected with each other, and the negative 45-degree oscillators of the dual-polarized oscillators are connected with each other.

7. The device of claim 6, wherein positive 45-degree oscillators in the array of each layer of the substrate are connected with each other and then connected through a positive connecting line; negative 45-degree vibrators in the array of each layer of the substrate are connected with each other and then connected through a negative connecting wire.

8. The device of claim 5, wherein each column of antenna elements in the antenna array of each layer of the substrate is divided into a group array.

9. The apparatus of claim 5, wherein the antenna elements are spaced apart by a distance of one-half a wavelength of a center frequency of the antenna.

10. The device of claim 9, wherein the substrates of each layer are spaced apart by a distance of one-half a wavelength of a center frequency of the antenna.