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 enhanced dual-polarization log-periodic antennas. The enhanced dual-polarization log-periodic antenna includes an antenna body, an antenna vibrator, a first coaxial line, a second coaxial line and an F-B covering layer. The enhanced dual-polarization log-periodic antenna realizes the dual-polarization structure of two single-polarization antenna units by adopting a cross-cross structure, which can reduce signal polarization loss and make the antenna gain excellent in both horizontal and vertical directions. By arranging an F-B covering layer at the first end of the antenna body, the F-B covering layer can form an F-B resonant cavity with the plane where the second end of the antenna body is located. The electromagnetic waves radiated by the antenna body are superimposed in phase in the resonant cavity, thereby improving the radiation gain of the enhanced dual-polarization log-periodic 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, comprising: 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 enhanced dual-polarization log-periodic 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 enhanced dual-polarization log-periodic antenna, each of which is connected to a corresponding antenna switch device and connected to the controller; wherein: the enhanced dual-polarization log-periodic antenna comprises:

[0006] The antenna body comprises four identical set lines arranged in sequence around a spatial axis, namely, a first set line, a second set line, a third set line, and a fourth set line. The first set line is arranged opposite to the third set line, and the second set line is arranged opposite to the fourth set line. The line between the midpoint of the first set line and the midpoint of the third set line is perpendicular to the line between the midpoint of the second set line and the midpoint of the fourth set line, and the foot is perpendicular to the spatial axis. The first set line, the second set line, the third set line, and the fourth set line all include a first end and a second end. A plurality of antenna elements are arranged on the first set line. The antenna elements are alternately arranged at equal intervals on both sides of the first set line relative to the spatial axis in a direction from the first end to the second end of the first set line, and the closer the antenna element is to the second end of the first set line, the shorter the length is. All antenna elements on the first set line are parallel to each other and are in the same plane. A plurality of antenna elements are also arranged on the second set line, the third set line, and the fourth set line, respectively, in the same manner as that of the antenna element of the first set line.

[0007] An FB covering layer, wherein the FB covering layer is arranged at the first end of the antenna body, and a plane where the FB covering layer is located is perpendicular to the spatial axis;

[0008] The first coaxial line and the second coaxial line are respectively arranged on the first collective line and the second collective line, and include a coaxially arranged inner conductor, an insulating medium layer, and an outer conductor layer, wherein the insulating medium layer is arranged between the inner conductor and the outer conductor layer, and the outer conductor layers of the first coaxial line and the second coaxial line are respectively attached to the side of the first collective line and the second collective line away from the spatial axis;

[0009] The second ends of the first and second collective wires are further provided with a first through hole and a second through hole, respectively. The shapes and sizes of the first and second through holes are respectively adapted to the first coaxial line and the second coaxial line. The output ends of the first and second coaxial lines are respectively connected to the first and second through holes, and the inner conductors of the first and second coaxial lines pass through the first and second through holes, respectively, and are connected to the third and fourth collective wires.

[0010] In one embodiment, enhanced dual-polarization log-periodic antennas of different frequency bands are cross-arranged on the substrate.

[0011] In one embodiment, the number of the FB covering layers is more than two, and each of the FB covering layers is stacked and arranged at the first end of the antenna body.

[0012] In one of the embodiments, the FB covering layer includes a base plate and a patch, and the patch is arranged on a side of the base plate close to the antenna body.

[0013] In one embodiment, the patch is a rectangular patch or a circular patch.

[0014] In one embodiment, the enhanced dual-polarization log-periodic antenna further includes a dielectric strip, and the dielectric strip is disposed in a region surrounded by the first set of lines, the second set of lines, the third set of lines, and the fourth set of lines.

[0015] In one embodiment, the enhanced dual-polarization log-periodic antenna further includes more than two balanced-unbalanced transformers, each of which is respectively connected to a different set of lines among the first set of lines, the second set of lines, the third set of lines, and the fourth set of lines.

[0016] In one embodiment, the enhanced dual-polarized log-periodic antenna further includes:

[0017] A third coaxial line, disposed on the third set line, and symmetrical with the first coaxial line about the space axis;

[0018] A fourth coaxial line, disposed on the fourth set line, and symmetrical with the second coaxial line about the space axis;

[0019] The input impedance of the first antenna single-polarization structure composed of the first set of lines, the third set of lines, and the first coaxial line, the third coaxial line, and the antenna element arranged on the first set of lines and the third set of lines, and the input impedance of the second antenna single-polarization structure composed of the second set of lines, the fourth set of lines, and the second coaxial line, the fourth coaxial line, and the antenna element arranged on the second set of lines and the fourth set of lines are both 50 ohms, and the wires of the first coaxial line, the second coaxial line, the third coaxial line, and the fourth coaxial line are 50 ohm coaxial lines.

[0020] In one embodiment, the opening height of the first through hole is higher than the opening height of the second through hole.

[0021] In one of the embodiments, the enhanced dual-polarization log-periodic antenna further includes a reflector, and the reflector is disposed at the second end of the antenna body.

[0022] The above-mentioned multi-channel wireless signal transceiver device, the high-gain antenna device adopts an enhanced dual-polarization log-periodic antenna to form an antenna array. The enhanced dual-polarization log-periodic antenna adopts a cross-cross structure to achieve a dual-polarization structure of two single-polarization antenna units, which can reduce signal polarization loss and make the antenna gain excellent in both horizontal and vertical directions. By arranging a FB covering layer at the first end of the antenna body, the FB covering layer can form an FB resonant cavity with the plane where the second end of the antenna body is located, and the electromagnetic waves radiated by the antenna body are superimposed in phase in the resonant cavity, thereby improving the radiation gain of the enhanced dual-polarization log-periodic antenna, and then improving the overall gain of the antenna, and having high reliability in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural block diagram of a multi-channel wireless signal transceiver device in one embodiment;

[0024] Figure 2 is a structural diagram of a high-gain antenna device in one embodiment;

[0025] Figure 3 A schematic diagram of the distribution of an enhanced dual-polarization log-periodic antenna in an embodiment;

[0026] Figure 4 A schematic diagram of the distribution of an enhanced dual-polarization log-periodic antenna in another embodiment;

[0027] Figure 5 A schematic diagram of the structure of an enhanced dual-polarized log-periodic antenna in an embodiment;

[0028] Figure 6 It is a partial schematic diagram of a coaxial cable structure in one embodiment;

[0029] Figure 7 A cross-sectional view of a local direction of an enhanced dual-polarization log-periodic antenna in an embodiment;

[0030] Figure 8 A top view of an enhanced dual-polarization log-periodic antenna in an embodiment;

[0031] Fig. 9 A schematic diagram of the single-polarization structure of an antenna in an embodiment;

[0032] Fig.10 It is a schematic diagram of the structure of an enhanced dual-polarization log-periodic antenna in another embodiment;

[0033] Fig.11 It is a structural block diagram of a multi-channel wireless signal transceiver device in another embodiment;

[0034] Fig.12 1 is a structural schematic diagram of a multi-channel wireless signal transceiver device in one embodiment. DETAILED DESCRIPTION

[0035] 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.

[0036] 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 enhanced dual-polarization logarithmic periodic 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 the corresponding enhanced dual-polarization logarithmic periodic antenna 12, each signal processing device 3 is respectively connected to the 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.

[0037] 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.

[0038] 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 enhanced dual-polarization log-periodic antenna 12. Further, the number of enhanced dual-polarization log-periodic 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 the corresponding enhanced dual-polarization log-periodic antenna 12 to form a signal transceiver channel, forming a multi-input and multi-output RF front-end structure. In one embodiment, the numbers of enhanced dual-polarized log-periodic antennas 12 connected to each antenna switch device 2 are different from each other. For example, the numbers of enhanced dual-polarized log-periodic antennas 12 connected to each antenna switch device 2 can be increased sequentially, and the corresponding signal transceiver channel can be selected according to actual needs, thereby improving the operating convenience of the multi-channel wireless signal transceiver equipment.

[0039] Specifically, the enhanced dual-polarized log-periodic 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 antenna fixing. The frequency bands of different enhanced dual-polarized log-periodic antennas 12 can be the same or different. In this embodiment, the enhanced dual-polarized log-periodic antennas 12 of different frequency bands are cross-arranged on the substrate 11. Figure 3 As shown, the enhanced dual-polarized logarithmic periodic 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 enhanced dual-polarized logarithmic periodic antenna 12 of different frequency bands are also different, such as Figure 4The diagram shows a high-gain interlaced array of enhanced dual-polarized log-periodic antennas 12 of different frequency bands. Band 1 antenna is a low-frequency antenna with a higher height, and band 2 antenna is a high-frequency antenna with a lower height. The enhanced dual-polarized log-periodic antennas 12 of different frequency bands are placed crosswise, which increases the distance between the two three-dimensional antenna units, indirectly increases the effective aperture area, and improves the antenna gain.

[0040] like Figure 5 As shown, the enhanced dual-polarization log-periodic antenna 12 includes an antenna body 110 , an antenna element 120 , a first coaxial line 130 , a second coaxial line and a FB covering layer 190 .

[0041] The antenna body 110 includes four identical collective lines, namely, the first collective line 111, the second collective line 112, the third collective line 113, and the fourth collective line 114. The four collective lines are arranged in sequence around a spatial axis, wherein the first collective line 111 is arranged opposite to the third collective line 113, and the second collective line 112 is arranged opposite to the fourth collective line 114. At the same time, the line connecting the midpoint of the first collective line 111 and the midpoint of the third collective line 113 is perpendicular to the line connecting the midpoint of the second collective line 112 and the midpoint of the fourth collective line 114, and the foot is perpendicular to the spatial axis, that is, the four collective lines are not uneven, but are arranged to keep the length aligned, so that the antenna can keep the structure relatively symmetrical and stable as much as possible.

[0042] A plurality of antenna elements 120 are respectively arranged on the first collection line 111, the second collection line 112, the third collection line 113, and the fourth collection line 114. The antenna element 120 can be a metal strip or a metal rod, as well as metal parts of other shapes. For the convenience of description, the two ends of each collection line may be referred to as the top and the bottom, respectively. The plurality of antenna elements 120 on any collection line are alternately arranged at equal intervals in sequence from the bottom to the top of the collection line on both sides of the collection line relative to the spatial axis, that is, they are alternately arranged at equal intervals from the bottom to the top, one left and one right, and the closer to the top, the shorter the antenna element. At the same time, the plurality of antenna elements 120 on the same collection line are parallel to each other and are in the same plane.

[0043] The first coaxial line 130 and the second coaxial line 140 are respectively disposed on the first set of lines 111 and the second set of lines 112. Figure 6 As shown, the first coaxial line 130 and the second coaxial line 140 both include a coaxially arranged inner conductor 131, an insulating medium layer 132 and an outer conductor layer 133, and the insulating medium layer 132 is arranged between the inner conductor 131 and the outer conductor layer 133 to ensure that they do not contact each other. When arranged, the outer conductor layers 133 of the first coaxial line 130 and the second coaxial line 140 are respectively attached to the outer sides of the first collective line 111 and the second collective line 112 away from the spatial axis to generate a potential difference.

[0044] See also Figure 7 The tops of the first collective line 111 and the second collective line 112 are respectively provided with a first through hole 150 and a second through hole 160. The shapes and sizes of the first through hole 150 and the second through hole 160 can be adapted to the first coaxial line 130 and the second coaxial line 140, and can also be larger or smaller than the cross-section of the coaxial line. The coaxial line arranged on the collective line can connect the output end to the through hole on the collective line where it is located. Furthermore, the inner conductor of the collective line connected to the through hole can continue to extend and pass through the through hole to be connected to the collective line opposite to the collective line where the coaxial line is located, so as to form a feeding structure. For example, the output end of the second coaxial line 140 arranged on the second collective line 112 is connected to the second through hole 160, and at the same time, the inner conductor of the output end of the second coaxial line 140 further extends through the second through hole 160 to be connected to the fourth coaxial line 114. The arrangement of the first collective line 111 and the first coaxial line 130 is the same, which will not be repeated here.

[0045] The FB cover layer 190 is disposed at the first end of the antenna body 110, and the plane where the FB cover layer 190 is located is perpendicular to the spatial axis. Specifically, the first end of the antenna body 110 is an end close to the second ends of the first set of lines 111, the second set of lines 112, the third set of lines 113 and the fourth set of lines 114. When the second ends of the first set of wires 111, the second set of wires 112, the third set of wires 113 and the fourth set of wires 114 are on the same plane, any one of the second ends of the first set of wires 111, the second set of wires 112, the third set of wires 113 and the fourth set of wires 114 can be used as the first end of the antenna body 110. When the second ends of the first set of wires 111, the second set of wires 112, the third set of wires 113 and the fourth set of wires 114 are not on the same plane, the highest end among the second ends of the first set of wires 111, the second set of wires 112, the third set of wires 113 and the fourth set of wires 114 can be used as the first end of the antenna body 110. The FB covering layer 190 can be directly set on the first end of the antenna body 110, and can also be set on the first end of the antenna body 110 through a connecting member. The distance between the FB covering layer 190 and the first end of the antenna body 110 can be adjusted according to actual needs.

[0046] There is not only one way to set the FB covering layer 190. For example, it can be fixedly set on the first end of the antenna body 110 at the factory or during installation to keep the position fixed, so that the FB covering layer 190 and the antenna body 110 are structurally integrated to improve the working performance. It can also be detachably fixed to the first end of the antenna body 110. The FB covering layer 190 can be installed when needed without being removed, which is convenient to use. When the FB covering layer 190 is damaged and cannot be used, only the FB covering layer 190 can be replaced, avoiding the overall replacement of the new dual-polarization log-periodic antenna and saving maintenance costs.

[0047] The FB covering layer 190 is parallel to the plane where the second end of the antenna body 110 is located. Taking the antenna body 110 being set on the ground as an example, the FB covering layer 190 is the reflection surface 1, and the antenna floor is the reflection surface 2. The two planes constitute the FB resonant cavity (Fabry-Perot resonant cavity). The antenna body 110 is in the resonant cavity, and the electromagnetic waves radiated by the antenna vibrator 120 in the antenna body 110 are superimposed in phase in the resonant cavity, thereby improving the radiation gain of the enhanced dual-polarization logarithmic periodic antenna. The type of FB covering layer 190 is not unique. For example, the FB covering layer 190 can adopt a gradient dielectric constant covering layer. Using different dielectric constants at different positions of the covering layer can make the phase distribution curve more uniform and improve the quality of the electromagnetic waves radiated by the enhanced dual-polarization logarithmic periodic antenna. The size of the FB covering layer 190 is also not unique. In this embodiment, the thickness of the FB covering layer 190 matches one-fourth of the wavelength of the electromagnetic wave radiated by the antenna vibrator when propagating in the medium of the FB covering layer 190, and the effect of improving the gain is good. It can be understood that in other embodiments, the specific size of the FB covering layer 190 can be adjusted according to actual needs.

[0048] In one embodiment, the number of FB covering layers 190 is more than two, and each FB covering layer 190 is stacked and arranged at the first end of the antenna body 110. Taking the first end of the antenna body 110 as the top of the antenna body 110, the second end of the antenna body 110 as the bottom of the antenna body 110, and the bottom of the antenna body 110 as the near-ground end as an example, stacking multiple FB covering layers 190 on the top of the antenna body 110 can make the number of electromagnetic waves radiated by the antenna element 120 more when propagating in the cavity formed by the plane where the multiple FB covering layers 190 and the second end of the antenna body 110 are located, thereby further improving the radiation gain of the enhanced dual-polarization log-periodic antenna.

[0049] In one embodiment, the FB cover layer 190 includes a bottom plate and a patch, and the patch is arranged on a side of the bottom plate close to the antenna body 110. The bottom plate is a carrier for the patch, which can fix the position of the patch and ensure the normal operation of the patch. The patch is arranged on the bottom plate and forms a resonant cavity with the plane where the second end of the antenna body 110 is located. The number of patches is not unique. Generally speaking, the more the number of patches, the smaller the size of the patch. The specific selection can be based on actual needs.

[0050] In one embodiment, the patch is a rectangular patch or a circular patch. The rectangular patch or the circular patch can be regularly arranged on the bottom plate, and the position and working parameters of the patch can be adjusted more conveniently, thereby improving the convenience of use of the enhanced dual-polarization log-periodic antenna.

[0051] In one embodiment, a cross-shaped slot is provided on one side of the patch close to the antenna body. The cross-shaped slot acts as a meander, which increases the equivalent inductance and significantly reduces the resonant frequency, thereby reducing the size of the FB cover layer 190 while ensuring the working performance. The stronger radiation generated by the cross-shaped slot is equivalent to increasing the loss resistance, thereby greatly improving the bandwidth.

[0052] In one embodiment, the enhanced dual-polarized log-periodic antenna 12 further includes a dielectric strip, which is arranged in the area formed by the first set of lines, the second set of lines, the third set of lines and the fourth set of lines. The size of the dielectric strip is not unique. In this embodiment, the cross-sectional area of ​​the dielectric strip is equal to the cross-sectional area of ​​the area formed by the first set of lines 111, the second set of lines 112, the third set of lines 113 and the fourth set of lines 114, so that the dielectric strip is fixed well and the working stability is improved. The length of the dielectric strip can be equal to the distance between the antenna vibrators 120 at both ends of the same set of lines. Under the premise of ensuring the working effect, it will not cause waste of materials. The enhanced dual-polarized log-periodic antenna 12 uses a quasi-periodic model, the vibrators are not crossed, the array elements are each pair of vibrators, the four pairs of vibrators are dual-polarized, and the length of each layer of vibrators is different, so as to achieve a wider bandwidth and different array element spacing. The Hansen-Woodyard end-fire condition is achieved by adding a dielectric strip in the middle of the feed assembly plate. The dielectric constants of the dielectric strips between each layer of vibrators are different, forming a strong end-fire array, so as to achieve the purpose of improving the gain of the antenna itself.

[0053] In one embodiment, the shape of each set of wires constituting the antenna body is a rectangular parallelepiped to facilitate the installation of components such as the antenna vibrator and the coaxial line.

[0054] In one embodiment, Figure 1 and Figure 8As shown, the enhanced dual-polarized log-periodic antenna 12 also includes a third coaxial line 170 and a fourth coaxial line 180, which are respectively arranged on the third set line 113 and the fourth set line 114, and the third coaxial line 170 is symmetrical with the first coaxial line 130 about the aforementioned spatial axis, and the fourth coaxial line 180 is symmetrical with the second coaxial line 140 about the aforementioned spatial axis. In one embodiment, the third coaxial line 170 can also be equal in length to the first coaxial line 130, and the fourth coaxial line 180 can be equal in length to the second coaxial line 140. In another embodiment, the third coaxial line 170 is the same as the first coaxial line 130, and the fourth coaxial line 180 is the same as the second coaxial line 140. By providing a coaxial line symmetrical to the first coaxial line 130 and the second coaxial line 140, the structural symmetry of the enhanced dual-polarized log-periodic antenna 12 can be ensured, thereby ensuring the symmetry of the antenna radiation characteristics and improving the antenna performance.

[0055] In one embodiment, Fig. 9 As shown, the input impedance of the first antenna monopolarization structure composed of the first set line 111, the third set line 113, the first coaxial line 130, the third coaxial line 170, and the antenna vibrator arranged on the first set line 111 and the third set line 113 is 50 ohms. In addition, the input impedance of the second antenna monopolarization structure composed of the second set line 112, the fourth set line 114, the second coaxial line 140, the fourth coaxial line 180, and the antenna vibrator arranged on the second set line 112 and the fourth set line 114 is also 50 ohms. The enhanced dual-polarization log-periodic antenna 12 does not require an impedance transformer and can be directly fed by a 50-ohm coaxial line, which is convenient, stable, and has strong adaptability. Coaxial feeding is used for top feeding, and the coaxial feeding is closely connected to the set line. At the same time, coaxial feeding can also be performed at the bottom of the set line. Furthermore, in one embodiment, the first coaxial line 130 , the second coaxial line 140 , the third coaxial line 170 , and the fourth coaxial line 180 are all 50-ohm coaxial lines.

[0056] In one embodiment, the first through hole 150 is opened closer to the top than the second through hole 160 so that the inner conductors of the first coaxial line 130 and the second coaxial line 140 do not overlap when connected to the third and fourth collective lines 113 and 114 respectively, thereby avoiding interference.

[0057] In one embodiment, see Fig.10, the enhanced dual-polarized log-periodic antenna 12 also includes more than two balanced-unbalanced transformers 210, and each balanced-unbalanced transformer 210 is respectively connected to a different set of lines in the first set line 111, the second set line 112, the third set line 113 and the fourth set line 114. Specifically, in this embodiment, taking the enhanced dual-polarized log-periodic antenna 12 including the first balanced-unbalanced transformer and the second balanced-unbalanced transformer as an example, the port of the first balanced-unbalanced transformer is connected to the first set line 111, and the port of the second balanced-unbalanced transformer is connected to the second set line 112. Further, the port of the balanced-unbalanced transformer connected to the set line can be further extended to be connected to the set line opposite to the connected set line to form a feeding structure. The connection relationship between other balanced-unbalanced transformers and set lines can be deduced in turn, and will not be repeated here. The use of more than two balanced-unbalanced transformers to form a feeding structure can achieve balanced feeding of the antenna vibrator and improve the working performance of the enhanced dual-polarized log-periodic antenna 12.

[0058] In one embodiment, see Fig.10 The enhanced dual-polarized log-periodic antenna 12 may further include a reflector 220 disposed at the second end of the antenna body. Specifically, the second end of the antenna body may be the near-ground end of the antenna body, i.e., the bottom end. By providing the reflector 220, the antenna backward beam may be converged and reflected through the reflector 220, thereby effectively improving the front-to-back ratio of the antenna, and also having a certain effect on improving the antenna gain and directivity, thereby improving the antenna performance.

[0059] In one embodiment, see Fig.11 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.

[0060] 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.

[0061] In one embodiment, see Fig.11 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.

[0062] 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.

[0063] In this embodiment, taking the example that the number of enhanced dual-polarization log-periodic 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 enhanced dual-polarization log-periodic antennas 12, the second antenna switch device 2 is connected to three enhanced dual-polarization log-periodic antennas 12, and so on, the Nth antenna switch device 2 is connected to N+1 enhanced dual-polarization log-periodic antennas 12. Taking the first antenna switch device 2 as an example, two enhanced dual-polarization log-periodic antennas 12 are connected to the antenna switch device 2, and the antenna switch device 2 is sequentially connected to the first filter 31, the first amplifier 32, the second filter 34 and the controller 4, and 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 enhanced dual-polarized log-periodic 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 enhanced dual-polarized log-periodic 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 multi-channel wireless signal transceiver equipment.

[0064] In one embodiment, the antenna switch device 2 includes a signal receiving circuit, a signal sending circuit and a switching switch, the switching switch is connected to the enhanced dual-polarized log-periodic 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 enhanced dual-polarized log-periodic antenna 12, so as to facilitate the control of the enhanced dual-polarized log-periodic antenna 12.

[0065] Specifically, the switching switch in the antenna switch device 2 is connected to the enhanced dual-polarization log-periodic antenna 12. When the switching switch is connected to the signal transmission circuit, the antenna switch device 2 controls the enhanced dual-polarization log-periodic 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 enhanced dual-polarization log-periodic antenna 12 to be in a receiving state. When the switching switch is in an open circuit state, the enhanced dual-polarization log-periodic antenna 12 does not work, and the device is in a shutdown state. The switching switch is connected to the controller 4, and the enhanced dual-polarization log-periodic 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 enhanced dual-polarization log-periodic antenna 12 between the transmitting, receiving or shutdown working states according to their own needs.

[0066] 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.12 , It represents an enhanced dual-polarization log-periodic antenna 12, the antenna switch is connected to the corresponding enhanced dual-polarization log-periodic 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 an enhanced dual-polarization log-periodic 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.

[0067] The multi-channel wireless signal transceiver device, the high-gain antenna device 1 uses an enhanced dual-polarization logarithmic periodic antenna 12 to form an antenna array. The enhanced dual-polarization logarithmic periodic antenna 12 uses a cross-cross structure to realize the dual-polarization structure of two single-polarization antenna units, which can reduce signal polarization loss and make the antenna gain excellent in both horizontal and vertical directions. By setting an FB covering layer 190 at the first end of the antenna body, the FB covering layer 190 can form an FB resonant cavity with the plane where the second end of the antenna body is located. The electromagnetic waves radiated by the antenna body are superimposed in phase in the resonant cavity, thereby improving the radiation gain of the enhanced dual-polarization logarithmic periodic antenna 12, and then improving the overall gain of the antenna, and the reliability of use is high. At the same time, the collective line of each antenna and the antenna elements arranged thereon can be disassembled and assembled in blocks, with a simple structure and easy to manufacture and install.

[0068] 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.

[0069] 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: include: 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 enhanced dual-polarization log-periodic 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 enhanced dual-polarization log-periodic antenna, each of which is connected to a corresponding antenna switch device and connected to the controller; wherein: the enhanced dual-polarization log-periodic antenna comprises: The antenna body comprises four identical set lines arranged in sequence around a spatial axis, namely, a first set line, a second set line, a third set line, and a fourth set line. The first set line is arranged opposite to the third set line, and the second set line is arranged opposite to the fourth set line. The line between the midpoint of the first set line and the midpoint of the third set line is perpendicular to the line between the midpoint of the second set line and the midpoint of the fourth set line, and the foot is perpendicular to the spatial axis. The first set line, the second set line, the third set line, and the fourth set line all include a first end and a second end. A plurality of antenna elements are arranged on the first set line. The antenna elements are alternately arranged at equal intervals on both sides of the first set line relative to the spatial axis in a direction from the first end to the second end of the first set line, and the closer the antenna element is to the second end of the first set line, the shorter the length is. All antenna elements on the first set line are parallel to each other and are in the same plane. A plurality of antenna elements are also arranged on the second set line, the third set line, and the fourth set line, respectively, in the same manner as that of the antenna element of the first set line. An FB covering layer, wherein the FB covering layer is arranged at the first end of the antenna body, the plane where the FB covering layer is located is perpendicular to the spatial axis, and the FB covering layer is parallel to the plane where the second end of the antenna body is located, and is used to form an FB resonant cavity; the FB covering layer is a gradient dielectric constant covering layer; The first coaxial line and the second coaxial line are respectively arranged on the first collective line and the second collective line, and include a coaxially arranged inner conductor, an insulating medium layer, and an outer conductor layer, wherein the insulating medium layer is arranged between the inner conductor and the outer conductor layer, and the outer conductor layers of the first coaxial line and the second coaxial line are respectively attached to the side of the first collective line and the second collective line away from the spatial axis; The second ends of the first and second collective wires are further provided with a first through hole and a second through hole, respectively. The shapes and sizes of the first and second through holes are respectively adapted to the first and second coaxial wires. The output ends of the first and second coaxial wires are respectively connected to the first and second through holes. The inner conductors of the first and second coaxial wires respectively pass through the first and second through holes and are connected to the third and fourth collective wires. The enhanced dual-polarized log-periodic antenna also includes a dielectric strip, which is arranged in an area formed by the first set of lines, the second set of lines, the third set of lines and the fourth set of lines; the cross-sectional area of ​​the dielectric strip is equal to the cross-sectional area of ​​the area formed by the first set of lines, the second set of lines, the third set of lines and the fourth set of lines, the length of the dielectric strip is equal to the distance between the antenna elements at both ends arranged on the same set of lines, and the dielectric constant of the dielectric strip between each layer of elements is different.

2. The multi-channel wireless signal transceiver device according to claim 1, characterized in that: The enhanced dual-polarization log-periodic 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 number of the FB covering layers is more than two, and each of the FB covering layers is stacked and arranged at the first end of the antenna body.

4. The multi-channel wireless signal transceiver device according to claim 1, characterized in that: The FB covering layer includes a base plate and a patch, and the patch is arranged on a side of the base plate close to the antenna body.

5. The multi-channel wireless signal transceiver device according to claim 4, characterized in that: The patch is a rectangular patch or a circular patch.

6. The multi-channel wireless signal transceiver device according to claim 1, characterized in that: The enhanced dual-polarization log-periodic antenna further includes more than two balanced-unbalanced transformers, each of which is respectively connected to a different set of lines among the first set of lines, the second set of lines, the third set of lines, and the fourth set of lines.

7. The multi-channel wireless signal transceiver device according to claim 1, characterized in that: The enhanced dual-polarized log-periodic antenna also includes: A third coaxial line, disposed on the third set line, and symmetrical with the first coaxial line about the space axis; A fourth coaxial line, disposed on the fourth set line, and symmetrical with the second coaxial line about the space axis; The input impedance of the first antenna single-polarization structure composed of the first set of lines, the third set of lines, the first coaxial line, the third coaxial line and the antenna elements arranged on the first set of lines and the third set of lines, and the input impedance of the second antenna single-polarization structure composed of the second set of lines, the fourth set of lines, the second coaxial line, the fourth coaxial line and the antenna elements arranged on the second set of lines and the fourth set of lines are both 50 ohms, and the wires of the first coaxial line, the second coaxial line, the third coaxial line and the fourth coaxial line are 50 ohm coaxial lines.

8. The multi-channel wireless signal transceiver device according to claim 1, characterized in that: The opening height of the first through hole is higher than the opening height of the second through hole.

9. The multi-channel wireless signal transceiver device according to claim 1, characterized in that: The enhanced dual-polarization log-periodic antenna further includes a reflector, which is disposed at the second end of the antenna body.

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