Multi-channel wireless signal transceiver

Abstract

The present application relates to a multi-channel wireless signal transceiver device, including a high-gain antenna device, an antenna switch device, a signal processing device and a controller. The high-gain antenna device includes a substrate and two or more dual-polarized inverted Yagi antennas. The number of antenna switch devices and signal processing devices is the same and both are two or more. The dual-polarized inverted Yagi antenna includes an antenna axial rod, a dual-polarized reflector, a dual-polarized active vibrator and a dual-polarized director. The dual-polarized inverted Yagi antenna is used to form an antenna array, and the high-gain antenna device is designed as a three-dimensional array structure, so that the high-gain antenna device can form a vertical plane beam, and by dual-polarizing and inverting the antenna, the radiation direction of the antenna is toward the ground, so that the ground can reflect all the radiated energy back, reducing the back radiation of the antenna, thereby improving the overall gain of the antenna, and having high reliability in use.

Description

Technical Field

[0001] The present application relates to the field of wireless technology, and in particular to a multi-channel wireless signal transceiver device. Background Art

[0002] WIFI is a wireless LAN technology created based on the IEEE 802.11 standard, which improves the interoperability between wireless network products based on this standard. WIFI is a short-range wireless technology with advantages such as fast transmission speed, low transmission power and no need for wiring. It can meet the needs of personal and social informatization. In the case of weak signals, the bandwidth can be automatically adjusted to effectively ensure the stability and reliability of the network.

[0003] The coverage of WIFI signals transmitted by traditional WIFI signal transmission devices is limited. Users cannot receive WIFI signals in areas beyond the coverage of WIFI, which affects the normal use of users and has low reliability. Summary of the invention

[0004] Based on this, it is necessary to provide a multi-channel wireless signal transceiver to address the problem of low reliability of traditional WIFI signal transmission devices.

[0005] A multi-channel wireless signal transceiver device comprises a high-gain antenna device, an antenna switch device, a signal processing device and a controller, wherein the high-gain antenna device comprises a substrate and two or more dual-polarized inverted Yagi antennas, each of which is arranged on the substrate; the antenna switch devices and the signal processing devices are the same in number and are both two or more, each of which is connected to a corresponding dual-polarized inverted Yagi antenna, each of which is connected to a corresponding antenna switch device and is connected to the controller; wherein:

[0006] The dual-polarization inverted Yagi antenna comprises an antenna axial rod, a dual-polarization reflector, a dual-polarization active vibrator and a dual-polarization director;

[0007] The dual-polarization director, the dual-polarization active vibrator and the dual-polarization reflector are sequentially arranged on the antenna axial rod; and the dual-polarization director is arranged at the near-ground end of the antenna axial rod, and the dual-polarization reflector is arranged at the far-ground end of the antenna axial rod; the near-ground end of the antenna axial rod is used to be arranged toward the ground, and the far-ground end of the antenna axial rod is arranged away from the ground;

[0008] The dual-polarization director comprises a first director and a second director arranged orthogonally, the first director and the second director comprise a plurality of metal pieces arranged on the axial rod of the antenna, each of the metal pieces is perpendicular to the axial rod of the antenna, the foot of the perpendicular coincides with the midpoint of the metal piece, the length of each metal piece is shorter than the metal piece adjacent to it and close to the dual-polarization active vibrator, and when the first director and the second director are orthogonally arranged to form the dual-polarization director, every two metal pieces with the same length remain orthogonal and are in the same plane;

[0009] The dual-polarization reflector comprises a first reflector and a second reflector arranged orthogonally, the first reflector and the second reflector respectively comprise a metal piece arranged on both sides of the antenna axial rod, the metal piece of the dual-polarization reflector is perpendicular to the antenna axial rod, the foot of the perpendicular coincides with the midpoint of the metal piece, the first reflector and the first director are in the same plane, the second reflector and the second director are in the same plane, and the length of the metal piece of the dual-polarization reflector is longer than the length of any metal piece of the dual-polarization director;

[0010] The dual-polarization active vibrator includes two orthogonally arranged single-polarization active vibrators, namely a first active vibrator and a second active vibrator. The first active vibrator and the second active vibrator are respectively composed of two L-shaped metal parts symmetrically arranged on both sides of the antenna axial rod. One arm of the L-shaped metal part is a connecting arm, which is attached to the antenna axial rod, and the port of the connecting arm is connected to the dual-polarization reflector. The other arm is a functional arm, and the length of the functional arm is longer than the length of the director and shorter than the length of the reflector. At the same time, the first active vibrator and the first reflector are in the same plane, and the second active vibrator and the second reflector are in the same plane.

[0011] In one embodiment, dual-polarized inverted Yagi antennas of different frequency bands are cross-arranged on the substrate.

[0012] In one of the embodiments, the dual-polarized inverted Yagi antenna further includes a reflector, and the reflector is disposed at the near-ground end of the antenna axial rod.

[0013] In one of the embodiments, the dual-polarized inverted Yagi antenna further includes a radome, which is a cavity structure with one end open and the other end closed, and the open end is fixed to the reflector.

[0014] In one of the embodiments, the antenna axial rod is in the shape of a square rod.

[0015] In one embodiment, the dual-polarization active oscillator further includes a feeding structure arranged on the first active oscillator and a feeding structure arranged on the second active oscillator, and each of the feeding structures includes:

[0016] A metal bump, disposed on one of the functional arms, for receiving power supply;

[0017] A coaxial line, one end of which is connected to the metal bump, and is used to transmit current to the single-polarization active vibrator to drive the antenna to work;

[0018] A support member, covering the outside of the coaxial line, and used to isolate the coaxial line from the external environment;

[0019] The metal shell is arranged outside the support member, and a part of the metal shell is embedded in the functional arm where the metal protrusion is not arranged.

[0020] In one of the embodiments, the dual-polarized inverted Yagi antenna further includes a feed input component, and the feed input component is connected to a feed structure on the first active element and a feed structure on the second active element.

[0021] In one embodiment, the feed input component includes a coaxial feed line, and the coaxial feed line connects a feed structure on the first active oscillator and a feed structure on the second active oscillator.

[0022] In one of the embodiments, the feed input component includes a balun feeding device, and the balun feeding device connects a feeding structure on the first active oscillator and a feeding structure on the second active oscillator.

[0023] In one embodiment, the dual-polarized inverted Yagi antenna also includes a dielectric strip, and the antenna axial rod includes a first feed assembly plate, a second feed assembly plate, a third feed assembly plate and a fourth feed assembly plate, and the first feed assembly plate, the second feed assembly plate, the third feed assembly plate and the fourth feed assembly plate together form a cavity, and the dielectric strip is arranged in the cavity.

[0024] The multi-channel wireless signal transceiver device has a high-gain antenna device that uses a dual-polarized inverted Yagi antenna to form an antenna array. The dual-polarized inverted Yagi antenna can effectively improve the antenna gain factor by designing a new reflector and active vibrator and adopting a dual-polarized structure. At the same time, dual polarization can also reduce the polarization loss of signal transmission and accurately receive signals. The dual-polarized inverted Yagi antenna is used to form an antenna array, and the high-gain antenna device is designed as a three-dimensional array structure, so that the high-gain antenna device can form a vertical plane beam. Moreover, by dual-polarizing and inverting the antenna, the radiation direction of the antenna is toward the ground, so that the ground can reflect all the radiated energy back, reducing the back radiation of the antenna, thereby improving the overall gain of the antenna and having high reliability in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1It is a structural block diagram of a multi-channel wireless signal transceiver device in one embodiment;

[0026] Figure 2 is a structural diagram of a high-gain antenna device in one embodiment;

[0027] Figure 3 A schematic diagram of the distribution of a dual-polarized inverted Yagi antenna in one embodiment;

[0028] Figure 4 A schematic diagram of the distribution of a dual-polarized inverted Yagi antenna in another embodiment;

[0029] Figure 5 A front view of the overall structure of a dual-polarized inverted Yagi antenna in one embodiment;

[0030] Figure 6 A rear view of the overall structure of a dual-polarized inverted Yagi antenna in one embodiment;

[0031] Figure 7 Schematic diagram of the structure of a dual-polarized inverted Yagi antenna in one embodiment;

[0032] Figure 8 is a front view of a dual-polarized inverted Yagi antenna in one embodiment;

[0033] Fig. 9 is a schematic structural diagram of an active vibrator in one embodiment;

[0034] Fig.10 is a side view of a dual-polarized inverted Yagi antenna in one embodiment;

[0035] Fig.11 A schematic diagram of the structure of a feeding structure in one direction in an embodiment;

[0036] Fig.12 is a schematic structural diagram of a feeding structure in another direction in an embodiment;

[0037] Fig.13 A front view of the overall structure of a dual-polarized inverted Yagi antenna in another embodiment;

[0038] Fig.14 It is a structural block diagram of a multi-channel wireless signal transceiver device in another embodiment;

[0039] Fig.15 1 is a structural schematic diagram of a multi-channel wireless signal transceiver device in one embodiment. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0041] In one embodiment, a multi-channel wireless signal transceiver device is provided, such as Figure 1 and Figure 2 As shown, it includes a high-gain antenna device 1, an antenna switch device 2, a signal processing device 3 and a controller 4. The high-gain antenna device 1 includes a substrate 11 and two or more dual-polarized inverted Yagi antennas 12, each of which is arranged on the substrate 11; the number of antenna switch devices 2 and signal processing devices 3 is the same and both are two or more, each antenna switch device 2 is respectively connected to a corresponding dual-polarized inverted Yagi antenna 12, each signal processing device 3 is respectively connected to a corresponding antenna switch device 2, and connected to the controller 4. When receiving a WIFI signal, the high-gain antenna device 1 can sense the electromagnetic signal in the space and then send it to the antenna switch device 2, the antenna switch device 2 transmits the signal to the signal processing device 3 for processing, and the processed signal is sent to the controller 4 for demodulation to obtain the WIFI signal, thereby realizing the reception of the WIFI signal. When sending a WIFI signal, the controller 4 outputs a weak radio frequency signal with low power and sends it to the signal processing device 3 for processing, and the processed signal is then radiated into the space through the antenna switch device 2 and the high-gain antenna device 1, thereby realizing the sending of the WIFI signal. Specifically, the type of the controller 4 is not unique, and may be, for example, a CPLD (Complex Programmable Logic Device), an FPGA (Field-Programmable Gate Array), or a single-chip microcomputer. It is understood that in other embodiments, the controller 4 may also use other devices as long as those skilled in the art consider it feasible.

[0042] The signal processing device 3 is mainly used to process the signal passing through. According to different actual needs, the signal processing device 3 performs signal processing in different ways. Accordingly, the structure of the signal processing device 3 is not unique. For example, when the signal processing device 3 includes a filter, the signal can be filtered. It can be understood that in other embodiments, the signal processing device 3 can also be other structures, which are determined according to user needs and have great flexibility. The number of signal processing devices 3 is equal to the number of antenna switch devices 2, and each signal processing device 3 is connected to the corresponding antenna switch device 2. In each signal channel, one signal processing device 3 is connected to one antenna switch device 2, which can maintain the independence of signal transmission between each channel and avoid mutual interference of signals.

[0043] The antenna switch device 2 can control the on-off between the high-gain antenna device 1 and the signal processing device 3. When the wireless signal transceiver device needs to work, the antenna switch device 2 is turned on, and the high-gain antenna device 1 and the signal processing device 3 can transmit signals normally. When the antenna switch device 2 is disconnected, the wireless signal transceiver device is in a standby state. The number of antenna switch devices 2 is more than two, and each antenna switch device 2 is respectively connected to a corresponding dual-polarized inverted Yagi antenna 12. Further, the number of dual-polarized inverted Yagi antennas 12 respectively connected to each antenna switch device 2 can be completely the same, partially the same, or completely different. Each antenna switch device 2 is connected to a corresponding dual-polarized inverted Yagi antenna 12 to form a signal transceiver channel, forming a multi-input and multi-output radio frequency front-end structure. In one embodiment, the number of dual-polarized inverted Yagi antennas 12 respectively connected to each antenna switch device 2 is different from each other. For example, the number of dual-polarized inverted Yagi antennas 12 connected to each antenna switch device 2 can be successively increased, and the corresponding signal transceiver channel can be selected according to actual needs to work, thereby improving the operating convenience of the multi-channel wireless signal transceiver device.

[0044] Specifically, the dual-polarized inverted Yagi antenna 12 is vertically arranged on the substrate 11. The material of the substrate 11 is not unique, and can be a metal plate or a plastic plate. In this embodiment, the substrate 11 is a metal substrate to improve the reliability of the antenna fixation. The frequency bands of different dual-polarized inverted Yagi antennas 12 can be the same or different. In this embodiment, the dual-polarized inverted Yagi antennas 12 of different frequency bands are cross-arranged on the substrate 11. Figure 3 As shown, the dual-polarized inverted Yagi antenna 12 includes a band 1 antenna and a band 2 antenna, and the antennas of the two different frequency bands are cross-arranged. The specific structural dimensions of the dual-polarized inverted Yagi antennas 12 of different frequency bands are also different, such as Figure 4 The figure shows a high-gain array of interlaced dual-polarized inverted Yagi antennas 12 of different frequency bands. The antenna of frequency band 1 is a low-frequency antenna with a higher height, and the antenna of frequency band 2 is a high-frequency antenna with a lower height. The dual-polarized inverted Yagi antennas 12 of different frequency bands are placed crosswise, that is, the distance between the two three-dimensional antenna units is enlarged, which indirectly increases the effective aperture area and improves the antenna gain.

[0045] like Figure 5 and Figure 6As shown, the dual-polarization inverted Yagi antenna 12 includes a dual-polarization director 110, a dual-polarization active vibrator 120, a dual-polarization reflector 130 and an antenna axial rod 140. The dual-polarization director 110, the dual-polarization active vibrator 120 and the dual-polarization reflector 130 are sequentially arranged on the antenna axial rod 140; and the dual-polarization director 110 is arranged at the near-ground end of the antenna axial rod 140, and the dual-polarization reflector 130 is arranged at the far-ground end of the antenna axial rod 140; the near-ground end of the antenna axial rod 140 is used to be arranged toward the ground, and the far-ground end of the antenna axial rod 140 is arranged away from the ground. Among them, the antenna axial rod 140 is a metal support rod, which can be in the shape of a round rod, a square rod, a track, etc., and is used to carry various components of the antenna. In one embodiment, the shape of the antenna axial rod 140 is a square rod.

[0046] like Figure 7 and Figure 8 As shown, for the convenience of description, the two ends of the antenna axial rod 140 are respectively referred to as the A end and the B end, the dual-polarization director 110 and the lens 400 are arranged at the A end, and the dual-polarization reflector 130 is arranged at the B end. The number of dual-polarization directors 110 can be multiple, and the lengths are different. Specifically, the lengths of the dual-polarization directors 110 from the A end to the B end gradually become shorter, and the length of the dual-polarization reflector 130 is the longest, the dual-polarization director 110 is slightly shorter than the dual-polarization reflector 130, and the length of the dual-polarization active vibrator 120 is the shortest.

[0047] The dual-polarization director 110 includes a first director and a second director arranged orthogonally, and the first director and the second director include a plurality of metal members arranged on the antenna axial rod 140, wherein the metal member may be a metal rod or a metal strip. The metal member is perpendicular to the antenna axial rod 140, and the foot of the perpendicular coincides with the midpoint of the metal member, so that the two ends of the metal member are symmetrically arranged on the antenna axial rod 140. At the same time, the length relationship between the plurality of metal members is: the lengths of the metal members are different, and the length of each metal member is shorter than the metal member adjacent to it and close to the dual-polarization active vibrator, that is, along the direction from the B end to the A end, the length of the metal member becomes shorter in sequence; or it can also be along the direction from the B end to the A end, the metal members are divided into a plurality of groups, and the lengths of the plurality of metal members in each group are the same, but the length of each group of metal members is shorter than the length of the group of metal members adjacent to it and close to the B end. At the same time, when the first director and the second director are orthogonally combined into a dual-polarization director, the metal pieces with the same length also remain orthogonal and are in the same plane, that is, the metal pieces with the same length form a cross shape as shown in the figure and are arranged on the antenna axial rod 140.

[0048] The dual-polarization reflector 130 includes a first reflector and a second reflector arranged orthogonally. The first reflector is the same as the second reflector, and each includes a metal piece arranged on the antenna axial rod 140. The metal piece is perpendicular to the antenna axial rod 140, and the foot of the perpendicular coincides with the midpoint of the metal piece, so that the two ends of the metal piece are symmetrically arranged on the antenna axial rod 140, and the first reflector and the second reflector are in the same plane. The length of the metal piece of the dual-polarization reflector 130 is longer than the length of any metal piece of the dual-polarization director 110.

[0049] like Fig. 9 As shown, the dual-polarization active vibrator 120 includes two identical single-polarization active vibrators arranged orthogonally, namely, a first active vibrator and a second active vibrator, each of which is composed of two L-shaped metal pieces symmetrically arranged on both sides of the antenna axial rod 140, one arm of the L-shaped metal piece is a connecting arm 121, which is attached to the antenna axial rod 140, and the port 122 on the connecting arm 121 is connected to the corresponding metal piece of the dual-polarization reflector 130, that is, an L-shaped metal piece of the first active vibrator is connected to a metal piece on one side of the first reflector, and another L-shaped metal piece of the first active vibrator is connected to a metal piece on the other side of the first reflector, and the second active vibrator is also connected, which will not be repeated here. The length of the connecting arm 121 can be adjusted according to actual needs such as the wavelength of the signal received and transmitted by the antenna. The other arm of the L-shaped metal part is a functional arm 123, and the length of the functional arm 123 is longer than the length of the director and shorter than the length of the reflector; at the same time, the first active vibrator and the first reflector are in the same plane, and the second active vibrator and the second reflector are in the same plane. Specifically, the sum of the lengths of the two functional arms of the active vibrator arranged on both sides of the antenna axial rod 140 is greater than the length of any metal part of the dual-polarization director 110, and less than the length of the metal part of the dual-polarization reflector 130. The angle between the connecting arm 121 and the functional arm 123 of the L-shaped metal part can be adjusted according to the actual signal receiving and sending requirements. In one embodiment, the angle between the connecting arm 121 and the functional arm 123 of the L-shaped metal part is 90°.

[0050] See also Fig.10 The relationship between the dual-polarization director 110, the dual-polarization active vibrator 120 and the dual-polarization reflector 130 also includes: the first active vibrator, the first reflector and the first director are in the same plane, the second active vibrator, the second reflector and the second director are in the same plane, and the view of the entire antenna from end A to end B is roughly a cross shape.

[0051] In one embodiment, Figure 5 and Figure 6As shown, the dual-polarized inverted Yagi antenna 12 further includes a reflector 300, which is disposed at the near-ground end of the antenna axial rod 140. Specifically, the reflector 300 can be a metal flat plate in a rectangular, circular, regular polygonal, etc. shape, which is used to enhance reflection and improve the front-to-back ratio of the antenna.

[0052] In one embodiment, the dual-polarized inverted Yagi antenna 12 further includes an radome, which is a cavity structure with an opening at one end and a closed end at the other end, and the open end is fixed to the reflector 300. The dual-polarized inverted Yagi antenna is placed in the cavity structure of the radome to protect the antenna components and prevent the antenna from being interfered by the environment outside the radome, for example, preventing external factors from damaging the overall structure of the antenna.

[0053] See also Fig.11 and Fig.12 In one embodiment, a feeding structure 200 is disposed on each of the first active oscillator and the second active oscillator of the dual-polarization active oscillator 130. Each feeding structure 200 includes:

[0054] The metal bump 201, as a feeding point, is disposed on one of the functional arms 123a of the single-polarization active dipole for receiving feeding.

[0055] The coaxial line 202 has a port at one end connected to the metal bump 201 for transmitting current to the active vibrator to drive the antenna to work.

[0056] The support member 203 is wrapped around the coaxial line 202 to isolate the coaxial line 202 from the external environment. In one embodiment, the support member is made of polytetrafluoroethylene, which further plays an insulating role.

[0057] The metal shell 204 is disposed outside the support member 203 , and a portion of the metal shell 204 is embedded in another functional arm 123 b without the metal bump 201 , so as to ground the metal shell and form a potential difference between the coaxial line 202 and the metal shell 204 .

[0058] Furthermore, in one embodiment, the dual-polarized inverted Yagi antenna 12 further includes a feed input component, which is connected to the feed structure on the first active element and the feed structure on the second active element. The feed input component is used to input feed to the dual-polarized inverted Yagi antenna 12 so that the antenna can receive feed and work normally.

[0059] Further, in one embodiment, reference may be made to Figure 5 as well as Figure 6The feed input assembly includes a coaxial feed line 500, and the coaxial feed line 500 connects the feed structure on the first active oscillator and the feed structure on the second active oscillator. Specifically, the coaxial feed line 500 can be a 50-ohm coaxial line, and correspondingly, the input impedance of the dual-polarized inverted Yagi antenna 12 is 50 ohms. By using a coaxial feed line to provide feed to the feed structure of the antenna, an impedance transformer is not required, which saves feed costs.

[0060] In another embodiment, reference may be made to Fig.13 The feed input component includes a balun feed device 600, which connects the feed structure on the first active element and the feed structure on the second active element. The balun feed device is a balanced-unbalanced transformer, and balanced feeding of the antenna element can be achieved through the balun feed device.

[0061] In one embodiment, the dual-polarized inverted Yagi antenna 12 also includes a dielectric strip, and the antenna axial rod 140 includes a first feed assembly plate, a second feed assembly plate, a third feed assembly plate, and a fourth feed assembly plate. The first feed assembly plate, the second feed assembly plate, the third feed assembly plate, and the fourth feed assembly plate are enclosed to form a cavity, and a dielectric strip is arranged in the cavity. Further, in one embodiment, the material of the dielectric strip can be an inorganic ceramic material or an organic dielectric material, and the cross-sectional area of ​​the dielectric strip is equal to the cross-sectional area of ​​the cavity, so that the dielectric strip is conveniently fixed in the cavity and the working stability is improved. By arranging the dielectric strip in the cavity, the Hansen-Woodyard end-fire condition can be achieved to form a strong end-fire array. The dielectric constants between each layer of oscillators are different, forming a strong end-fire array, so as to achieve the purpose of improving the gain of the antenna itself.

[0062] In one embodiment, see Fig.14 The signal processing device 3 includes a first filter 31, a first amplifier 32 and a second amplifier 33. The first filter 31 is connected to the antenna switch device 2 and the first amplifier 32. The first amplifier 32 is connected to the controller 4. The controller 4 is connected to the second amplifier 33. The second amplifier 330 is connected to the antenna switch device 2. The filter can filter the signal, and the amplifier can amplify the signal. The use of the filter and the amplifier can improve the quality of the WIFI signal and the reliability of the WIFI signal transmission.

[0063] Specifically, the types of the first amplifier 32 and the second amplifier 33 are not unique. For example, in the present embodiment, the first amplifier 32 is a power amplifier, and the second amplifier 33 is a low-noise amplifier. When sending a WIFI signal, the controller 4 outputs a weak radio frequency signal with low power and sends it to the power amplifier for power amplification, so that the output signal has sufficient power to meet the demand, and the amplified signal is sent to the first filter 31 for filtering. The filtered signal is then radiated into the space through the antenna switch device 2 via the high-gain antenna device 1 to achieve the sending of the WIFI signal. When receiving a WIFI signal, the high-gain antenna device 1 can sense the electromagnetic signal in the space and then send it to the antenna switch device 2. The antenna switch device 2 transmits the signal to the low-noise amplifier for amplification. The amplified signal is sent to the controller 4 for demodulation to obtain the WIFI signal, thereby achieving the reception of the WIFI signal. It can be understood that in other embodiments, the first amplifier 32 and the second amplifier 33 can also be other types of amplifiers, as long as those skilled in the art believe that it can be achieved. In addition, the type of the first filter 31 is not unique. For example, a bandpass filter can be used. The bandpass filter can filter out cluttered signals so that useful signals in a specific frequency band can be smoothly transmitted in the channel. There are many ways to implement the bandpass filter, for example, it can be a designed dedicated bandpass filter with stable performance, or it can be a printed bandpass filter with a simple structure and low manufacturing cost. It is understood that in other embodiments, the first filter 31 can also be other types of filters as long as those skilled in the art believe that it can be implemented.

[0064] In one embodiment, see Fig.14 The signal processing device 3 further includes a second filter 34, the second filter 34 is connected to the first amplifier 32, and the controller 4 is connected to the second filter 34. The second filter 34 is arranged between the first amplifier 32 and the controller 4 to filter out the clutter contained in the signal amplified by the first amplifier 32, thereby improving the signal quality.

[0065] Specifically, the type of the second filter 34 is not unique, for example, it can be a low-pass filter, which is connected to the first amplifier 32, and can filter out high-order harmonics caused by the power amplifier, such as second harmonics, third harmonics and even higher-order harmonics, to reduce the impact of high-order harmonics on signal transmission. It can be understood that in other embodiments, the second filter 34 can also be other types of filters, as long as those skilled in the art believe that it can be implemented.

[0066] In this embodiment, taking the example that the number of dual-polarized inverted Yagi antennas 12 connected to each antenna switch device 2 increases in sequence, the number of antenna switch devices 2 is N, the first antenna switch device 2 is connected to two dual-polarized inverted Yagi antennas 12, the second antenna switch device 2 is connected to three dual-polarized inverted Yagi antennas 12, and so on, the Nth antenna switch device 2 is connected to N+1 dual-polarized inverted Yagi antennas 12. Taking the first antenna switch device 2 as an example, two dual-polarized inverted Yagi antennas 12 are connected to the antenna switch device 2, and the antenna switch device 2 is connected to the first filter 31, the first amplifier 32, the second filter 34 and the controller 4 in sequence. The antenna switch device 2 is also connected to the controller 4 through the second amplifier 33, respectively forming a signal transmission channel and a signal receiving channel. By independently configuring each antenna switch device 2 with a set of signal processing devices 3 to form multiple signal transmission channels and signal receiving channels, multi-beam configuration can be achieved, thereby expanding the application scope of multi-channel wireless signal transceiver equipment. Since the number of dual-polarized inverted Yagi antennas 12 connected to each antenna switch device 2 is different, the gain effect of each antenna switch device 2 is also different. Specifically, the more the number of dual-polarized inverted Yagi antennas 12 is, the higher the gain is. In actual use, the corresponding number of antennas can be adjusted according to the requirements of signal strength and coverage, which is conducive to the rational use of resources and improves the reliability of the multi-channel wireless signal transceiver device.

[0067] In one embodiment, the antenna switch device 2 includes a signal receiving circuit, a signal sending circuit and a switch, the switch is connected to the dual-polarized inverted Yagi antenna 12, and is connected to the second amplifier 33 through the signal receiving circuit, and is connected to the first filter 31 through the signal sending circuit. The antenna switch device 2 can switch the working state of the dual-polarized inverted Yagi antenna 12, so as to facilitate the control of the dual-polarized inverted Yagi antenna 12.

[0068] Specifically, the switching switch in the antenna switch device 2 is connected to the dual-polarized inverted Yagi antenna 12. When the switching switch is connected to the signal transmission circuit, the antenna switch device 2 controls the dual-polarized inverted Yagi antenna 12 to be in a transmitting state. When the switching switch is connected to the signal receiving circuit, the antenna switch device 2 controls the dual-polarized inverted Yagi antenna 12 to be in a receiving state. When the switching switch is in an open circuit state, the dual-polarized inverted Yagi antenna 12 does not work, and the device is in a shutdown state. The switching switch is connected to the controller 4, and the dual-polarized inverted Yagi antenna 12 is switched between the transmitting, receiving or shutdown working states according to the control signal sent by the controller 4. Alternatively, the switching switch can also be manually controlled, and the user can manually switch the dual-polarized inverted Yagi antenna 12 between the transmitting, receiving or shutdown working states according to their own needs.

[0069] In order to better understand the above embodiment, a detailed explanation is given below in conjunction with a specific embodiment. In one embodiment, see Fig.15 , It represents a dual-polarized inverted Yagi antenna 12, the antenna switch is connected to the corresponding dual-polarized inverted Yagi antenna 12, the filter is connected to the antenna switch and the power amplifier, the power amplifier is connected to the chip, the chip is connected to the low-noise amplifier, and the low-noise amplifier is connected to the antenna switch. The device uses a dual-polarized inverted Yagi antenna 12 to improve the overall gain of the antenna, and uses the high-gain characteristics of the three-dimensional antenna to solve the current problem of short WIFI transmission distance. The device can achieve large-scale coverage of WIFI signals.

[0070] In the above-mentioned multi-channel wireless signal transceiver device, the high-gain antenna device 1 adopts a dual-polarized inverted Yagi antenna 12 to form an antenna array. The dual-polarized inverted Yagi antenna 12 can effectively improve the antenna gain coefficient by designing a new reflector and an active vibrator, and adopting a dual-polarized structure. At the same time, the dual polarization can also reduce the polarization loss of signal transmission and accurately receive the signal. The dual-polarized inverted Yagi antenna 12 is used to form an antenna array, and the high-gain antenna device 1 is designed as a three-dimensional array structure, so that the high-gain antenna device 1 can form a vertical plane beam, and by dual-polarizing and inverting the antenna, the radiation direction of the antenna is toward the ground, so that the ground can reflect all the radiated energy back, reducing the back radiation of the antenna, thereby improving the overall gain of the antenna, and having high reliability in use.

[0071] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A multi-channel wireless signal transceiver device, characterized in that: The invention comprises a high-gain antenna device, an antenna switch device, a signal processing device and a controller, wherein the high-gain antenna device comprises a substrate and two or more dual-polarized inverted Yagi antennas, each of which is arranged on the substrate; the number of the antenna switch devices and the signal processing devices is the same and both are two or more, each of which is connected to a corresponding dual-polarized inverted Yagi antenna, each of which is connected to a corresponding antenna switch device and is connected to the controller; wherein: The dual-polarization inverted Yagi antenna comprises an antenna axial rod, a dual-polarization reflector, a dual-polarization active vibrator and a dual-polarization director; The dual-polarization director, the dual-polarization active vibrator and the dual-polarization reflector are sequentially arranged on the antenna axial rod; and the dual-polarization director is arranged at the near-ground end of the antenna axial rod, and the dual-polarization reflector is arranged at the far-ground end of the antenna axial rod; the near-ground end of the antenna axial rod is used to be arranged toward the ground, and the far-ground end of the antenna axial rod is arranged away from the ground; The dual-polarization director comprises a first director and a second director arranged orthogonally, the first director and the second director comprise a plurality of metal pieces arranged on the axial rod of the antenna, each of the metal pieces is perpendicular to the axial rod of the antenna, the foot of the perpendicular coincides with the midpoint of the metal piece, the length of each metal piece is shorter than the metal piece adjacent to it and close to the dual-polarization active vibrator, and when the first director and the second director are orthogonally arranged to form the dual-polarization director, every two metal pieces with the same length remain orthogonal and are in the same plane; The dual-polarization reflector comprises a first reflector and a second reflector arranged orthogonally, the first reflector and the second reflector respectively comprise a metal piece arranged on both sides of the antenna axial rod, the metal piece of the dual-polarization reflector is perpendicular to the antenna axial rod, the foot of the perpendicular coincides with the midpoint of the metal piece, the first reflector and the first director are in the same plane, the second reflector and the second director are in the same plane, and the length of the metal piece of the dual-polarization reflector is longer than the length of any metal piece of the dual-polarization director; The dual-polarization active vibrator includes two orthogonally arranged single-polarization active vibrators, namely, a first active vibrator and a second active vibrator, wherein the first active vibrator and the second active vibrator are respectively composed of two L-shaped metal pieces symmetrically arranged on both sides of the antenna axial rod, one arm of the L-shaped metal piece is a connecting arm, which is attached to the antenna axial rod, and a port of the connecting arm is connected to the dual-polarization reflector, and the other arm is a functional arm, and the length of the functional arm is longer than the length of the director and shorter than the length of the reflector; at the same time, the first active vibrator and the first reflector are in the same plane, and the second active vibrator and the second reflector are in the same plane; The dual-polarized inverted Yagi antenna also includes a dielectric strip, and the antenna axial rod includes a first feed assembly plate, a second feed assembly plate, a third feed assembly plate and a fourth feed assembly plate. The first feed assembly plate, the second feed assembly plate, the third feed assembly plate and the fourth feed assembly plate together form a cavity, and the dielectric strip is arranged in the cavity. The cross-sectional area of ​​the dielectric strip is equal to the cross-sectional area of ​​the cavity, and the material of the dielectric strip is an inorganic ceramic material, and the dielectric constant of the dielectric strip between each layer of oscillators is different.

2. The multi-channel wireless signal transceiver device according to claim 1, characterized in that: Dual-polarization inverted Yagi antennas of different frequency bands are cross-arranged on the substrate.

3. The multi-channel wireless signal transceiver device according to claim 1, characterized in that: The dual-polarized inverted Yagi antenna also includes a reflector, which is arranged at the near-ground end of the antenna axial rod.

4. The multi-channel wireless signal transceiver device according to claim 3, characterized in that: The dual-polarized inverted Yagi antenna also includes an antenna cover, which is a cavity structure with one end open and the other end closed, and the open end is fixed to the reflector.

5. The multi-channel wireless signal transceiver device according to claim 1, characterized in that: The shape of the antenna axial rod is a square rod.

6. The multi-channel wireless signal transceiver device according to claim 1, characterized in that: The dual-polarization active oscillator further includes a feeding structure arranged on the first active oscillator and a feeding structure arranged on the second active oscillator, each of the feeding structures including: A metal bump, disposed on one of the functional arms, for receiving power supply; A coaxial line, one end of which is connected to the metal bump, and is used to transmit current to the single-polarization active vibrator to drive the antenna to work; A support member, covering the outside of the coaxial line, and used to isolate the coaxial line from the external environment; The metal shell is arranged outside the support member, and a part of the metal shell is embedded in the functional arm where the metal protrusion is not arranged.

7. The multi-channel wireless signal transceiver device according to claim 6, characterized in that: The dual-polarized inverted Yagi antenna also includes a feed input component, which is connected to the feed structure on the first active element and the feed structure on the second active element.

8. The multi-channel wireless signal transceiver device according to claim 7, characterized in that: The feed input component includes a coaxial feed line, and the coaxial feed line connects a feed structure on the first active oscillator and a feed structure on the second active oscillator.

9. The multi-channel wireless signal transceiver device according to claim 7, characterized in that: The feed input component includes a balun feeding device, and the balun feeding device connects the feeding structure on the first active oscillator and the feeding structure on the second active oscillator.

10. The multi-channel wireless signal transceiver device according to claim 1, characterized in that: The substrate is a metal substrate.

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