CN211789486U

CN211789486U - Novel WIFI signal send-receiver device of multichannel

Info

Publication number: CN211789486U
Application number: CN202020463946.2U
Authority: CN
Inventors: 张少林; 崔立成
Original assignee: Shenzhen Wave Technology Co Ltd
Current assignee: Shenzhen Wave Technology Co Ltd
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2020-10-27
Anticipated expiration: 2030-04-02

Abstract

The utility model relates to a novel WIFI signal send-receiver device of multichannel. The device comprises a high-gain antenna device, and more than two equal wireless hot spot devices, band-pass filtering devices, frequency moving devices and antenna switch devices which are connected in sequence, wherein the high-gain antenna device comprises a substrate and more than two dual-polarized log-periodic antennas arranged on the substrate, the dual-polarized log-periodic antennas adopt a cross structure to realize the dual polarization of two single-polarized antenna units, can reduce the signal polarization loss, the antenna element can induce the same-phase current on the reflecting disc, the gain is improved, the high-gain antenna device is designed into a three-dimensional array structure, a vertical plane wave beam can be formed, thereby improving the integral gain of the antenna, moving the WIFI signal to a low frequency band and then transmitting the WIFI signal out, increasing the coverage area of the WIFI signal, and the novel WIFI signal transceiver of multichannel contains the signal transmission channel of many input multi output, uses the reliability high.

Description

Novel WIFI signal send-receiver device of multichannel

Technical Field

The utility model relates to a wireless technology field especially relates to a novel WIFI signal send-receiver device of multichannel.

Background

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

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

SUMMERY OF THE UTILITY MODEL

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

A novel multi-channel WIFI signal transceiving device comprises a wireless hotspot device, a band-pass filtering device, a frequency moving device, an antenna switch device and a high-gain antenna device, wherein the high-gain antenna device comprises a substrate and two or more dual-polarized log-periodic antennas, and each dual-polarized log-periodic antenna is arranged on the substrate; the number of the wireless hotspot devices, the number of the band-pass filtering devices, the number of the frequency moving devices and the number of the antenna switching devices are the same and are two or more, each band-pass filtering device is respectively connected with the corresponding wireless hotspot device and the corresponding frequency moving device, and each antenna switching device is respectively connected with the corresponding frequency moving device and the corresponding dual-polarized log-periodic antenna; the dual-polarized log-periodic antenna comprises:

an antenna main body including four identical aggregation lines, namely a first aggregation line, a second aggregation line, a third aggregation line and a fourth aggregation line, sequentially arranged around a spatial axis, wherein the first aggregation line is arranged opposite to the third aggregation line, the second aggregation line is arranged opposite to the fourth aggregation line, a connection line between a midpoint of the first aggregation line and a midpoint of the third aggregation line is perpendicular to a connection line between a midpoint of the second aggregation line and a midpoint of the fourth aggregation line, a foot is perpendicular to the spatial axis, and the first aggregation line, the second aggregation line, the third aggregation line and the fourth aggregation line each include a first end and a second end; the antenna elements are alternately arranged on two sides of the first aggregation line relative to the space axis direction at equal intervals in sequence from the first end to the second end of the first aggregation line, and the shorter the length of the antenna element close to the second end of the first aggregation line, the antenna elements on the first aggregation line are parallel to each other and are positioned on the same plane; a plurality of antenna oscillators are also arranged on the second aggregation line, the third aggregation line and the fourth aggregation line respectively, and the arrangement mode of the antenna oscillators is the same as that of the antenna oscillators of the first aggregation line;

the reflecting disc is arranged at the first end of the antenna main body, and the plane of the reflecting disc is perpendicular to the space axis;

the first coaxial line and the second coaxial line are respectively arranged on the first aggregation line and the second aggregation line and comprise an inner conductor, an insulating medium layer and an outer conductor layer which are coaxially arranged, the insulating medium layer is arranged between the inner conductor and the outer conductor layer, and the outer conductor layer of the first coaxial line and the second coaxial line are respectively attached to one sides, far away from the space axis, of the first aggregation line and the second aggregation line;

the first set line with the second end of second set line still is provided with first through-hole and second through-hole respectively, the shape and the size of first through-hole and second through-hole respectively with first coaxial line and second coaxial line suit, the output of first coaxial line and second coaxial line is connected to respectively first through-hole and second through-hole, just the inner conductor of first coaxial line and second coaxial line passes respectively first through-hole with the second through-hole is connected to the third set line with the fourth set line.

Above-mentioned novel WIFI signal send-receiver device of multichannel, high gain antenna device adopts dual polarization log periodic antenna to constitute the antenna array, dual polarization log periodic antenna adopts the cross structure to realize the dual polarization constitution of two single polarization antenna unit, reducible signal polarization loss, the gain of the perpendicular both sides of level that makes the antenna is all good, the antenna element can respond to the same phase current on the reflecting disc, improve the gain, the assembly line of every antenna and the antenna element that sets up above that all can the piecemeal dismouting realize simultaneously, moreover, the steam generator is simple in structure, and the manufacturing and installation are convenient for. The dual-polarized log periodic antenna is adopted to form an antenna array, and the high-gain antenna device is designed into a three-dimensional array structure, so that the high-gain antenna device can form vertical plane beams, and the integral gain of the antenna is improved. In addition, because the low-frequency band signal wavelength is longer, the penetrating power is stronger, move the WIFI signal to the high-gain antenna device after the low-frequency band and launch again and can increase the coverage of WIFI signal, and do not receive the separation of barriers such as building or trees, more be adapted to bad weather. Each antenna switch device is connected corresponding dual polarization log periodic antenna respectively, and each frequency is moved the device and is connected corresponding band-pass filter device respectively, and each band-pass filter device connects corresponding wireless hotspot device respectively, can form, improves the novel WIFI signal transceiver's of multichannel reliability in utilization.

Drawings

Fig. 1 is a block diagram of a structure of a novel multi-channel WIFI signal transceiver in one embodiment;

FIG. 2 is a block diagram of a high gain antenna assembly in one embodiment;

FIG. 3 is a schematic diagram of the distribution of dual-polarized log-periodic antennas in one embodiment;

FIG. 4 is a schematic diagram of the distribution of dual-polarized log-periodic antennas in another embodiment;

FIG. 5 is a schematic diagram of an embodiment of a dual-polarized log-periodic antenna;

FIG. 6 is a partial schematic view of a coaxial wire structure in one embodiment;

FIG. 7 is a cross-sectional view of a portion of a dual polarized log periodic antenna in one embodiment;

FIG. 8 is a top view of a dual polarized log periodic antenna in one embodiment;

FIG. 9 is a schematic diagram of an antenna monopole structure according to an embodiment;

FIG. 10 is a schematic diagram of a dual-polarized log-periodic antenna according to another embodiment;

fig. 11 is a block diagram of a novel multi-channel WIFI signal transceiver device in another embodiment;

fig. 12 is a schematic structural diagram of the novel multi-channel WIFI signal transceiver in an embodiment;

fig. 13 is a schematic structural diagram of a novel multi-channel WIFI signal transceiver device in another embodiment.

Detailed Description

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

In an embodiment, please refer to fig. 1 and 2, a multichannel novel WIFI signal transceiver is provided, which includes a wireless hotspot device 5, a band-pass filter device 4, a frequency moving device 3, an antenna switch device 2 and a high-gain antenna device 1, where the high-gain antenna device 1 includes a substrate 10 and two or more dual-polarized log-periodic antennas 11, each dual-polarized log-periodic antenna 11 is disposed on the substrate 10, the wireless hotspot device 5, the band-pass filter device 4, the frequency moving device 3 and the antenna switch device 2 are the same in number and are two or more, each band-pass filter device 4 is connected to the corresponding wireless hotspot device 5 and the frequency moving device 3, and each antenna switch device 2 is connected to the corresponding frequency moving device 3 and the dual-polarized log-periodic antenna 11. The wireless hotspot device 5 is used for generating WIFI signals, the generated WIFI signals are filtered by the band-pass filter device 4 and then sent to the frequency moving device 3, the frequency moving device 3 can move the frequency of the signals, the high-frequency band signals are moved to the low-frequency band, and the moved signals are transmitted out through the antenna switch device 2 and the high-gain antenna device 1. Because the low-frequency band signal wavelength is longer, and the penetrating power is stronger, move the WIFI signal to the low-frequency band after the rethread high gain antenna device 1 launches out and can increase the coverage of WIFI signal, and do not receive the separation of barriers such as building or trees, more be adapted to bad weather, use the reliability height.

Specifically, wireless hotspot device 5 mainly provides access to the wired local area network by the multichannel novel WIFI signal transceiver and the multichannel novel WIFI signal transceiver from the wired local area network, and wireless workstations within the access point coverage area of wireless hotspot device 5 can communicate with each other through the wireless workstations. When a WIFI signal is transmitted, the wireless hotspot device 5 is connected to a network for processing and then is transmitted to the band-pass filter device 4 in the form of the WIFI signal, the band-pass filter device 4 filters and then transmits the signal to the frequency moving device 3, the frequency moving device 3 can realize the frequency moving of the signal, the signal in a high frequency band is moved to a low frequency band, and the moved signal is transmitted through the antenna switch device 2 and the high-gain antenna device 1. When receiving the WIFI signal, high gain antenna device 1 can sense the electromagnetic signal in the space and then send to antenna switch device 2, antenna switch device 2 moves device 3 with signal transmission to frequency, the frequency that device 3 can realize the signal is moved to the frequency, move the low frequency band signal to the high frequency channel, the signal after moving is retransmitted to band-pass filter 4 and is carried out filtering treatment, signal transmission after the filtering is to wireless hotspot device 5, make the user can realize the visit to the novel WIFI signal transceiver of multichannel from wired LAN through wireless hotspot device 5.

The band-pass filter 4 is mainly used to filter the signals flowing through, allowing the signals in a specific frequency band to pass through while shielding the signals in other frequency bands. According to the difference of actual demand, can adopt the bandpass filter 4 of different structures to the signal of the frequency channel that remains and filter is also different, thereby application scope is wider.

The frequency shifting device 3 uses analog mixer technology to shift the high-frequency band signal to the low-frequency band or shift the low-frequency band signal to the high-frequency band, the structure of the frequency shifting device 3 is not unique, for example, an analog multiplier frequency converter or a crystal triode mixer can be used, it can be understood that the frequency shifting device 3 can also use other structures, as long as those skilled in the art can realize it. The antenna switching device 2 can control the on-off of signals between the dual-polarized log periodic antenna 11 and the frequency moving device 3, when the dual-polarized log periodic antenna 11 is needed to work, the antenna switching device 2 is switched on, signals can be normally transmitted between the dual-polarized log periodic antenna 11 and the frequency moving device 3, and when the antenna switching device 2 is switched off, the dual-polarized log periodic antenna 11 is in a standby state. The dual-polarized log periodic antenna 11 is a carrier for receiving and sending signals, the dual-polarized log periodic antenna 11 can sense electromagnetic signals in the space and can also transmit the signals, the WIFI signals can be received and sent, and the use is convenient.

The high-gain antenna device 1 includes a substrate 10 and two or more dual-polarized log periodic antennas 11, and each dual-polarized log periodic antenna 11 is disposed on the substrate 10. The material of the substrate 10 is not exclusive, and may be a metal plate, a plastic plate, or the like, and in the present embodiment, the substrate 10 is a metal substrate, which improves the antenna fixing reliability. The frequency bands of different dual-polarized log periodic antennas 10 may be the same or different. In this embodiment, the dual-polarized log periodic antennas 10 of different frequency bands are arranged in a crossed manner on the substrate 10. As shown in fig. 3, the dual-polarized log periodic antenna 10 includes a frequency band 1 antenna and a frequency band 2 antenna, and the two antennas in different frequency bands are arranged in a crossed manner. The specific structural dimensions of the dual-polarized log periodic antennas 10 of different frequency bands are different, as shown in fig. 4, a cross-type high-gain array mode diagram is shown among the dual-polarized log periodic antennas 10 of different frequency bands, the antenna of frequency band 1 is a low-frequency antenna and has a high height, and the antenna of frequency band 2 is a high-frequency antenna and has a low height. The dual-polarized log-periodic antennas with different frequency bands are placed in a crossed mode, namely, the distance between two dual-polarized log-periodic antenna units is enlarged, the effective aperture area is indirectly increased, and the antenna gain is improved.

As shown in fig. 5, the dual polarized log periodic antenna 10 includes an antenna body 110, an antenna element 120, a first coaxial line 130, a second coaxial line 140, and a reflective disk 190. The antenna main body 110 includes four identical aggregation lines, which are a first aggregation line 111, a second aggregation line 112, a third aggregation line 113, and a fourth aggregation line 114, respectively, and the four aggregation lines are sequentially disposed around a spatial axis, wherein the first aggregation line 111 is disposed opposite to the third aggregation line 113, and the second aggregation line 112 is also disposed opposite to the fourth aggregation line 114. Meanwhile, a connecting line between the middle point of the first aggregation line 111 and the middle point of the third aggregation line 113 is perpendicular to a connecting line between the middle point of the second aggregation line 112 and the middle point of the fourth aggregation line 114, and the connecting lines are hung on the spatial axis, namely the four aggregation lines are not staggered, but are arranged in a length alignment manner, so that the antenna keeps relatively symmetrical and stable structure as much as possible.

First set line 111, second set line 112, third set line 113, it is provided with a plurality of antenna element 120 respectively to divide equally on the fourth set line 114, antenna element 120 can be metal strip or metal bar, and the metalwork of other shapes, for convenient the description, do not call the both ends of each set line top and bottom respectively, a plurality of antenna element 120 on arbitrary set line all is from this set line bottom to the both sides of top equidistant ground setting in proper order for the space axis in the set line in proper order of direction on top, a left side right side is in turn along the equidistant ground setting in the direction from bottom to top promptly, and the antenna element that is close to the top is shorter more, a plurality of antenna element 120 on the same set line is parallel to each other and is in the coplanar simultaneously.

The reflective disk 190 is disposed at a first end of the antenna body 110, and the plane of the reflective disk 190 is perpendicular to the spatial axis. Specifically, the first end of the antenna body 110 is an end near the second ends of the first, second, third and

fourth aggregation lines

111, 112, 113 and 114. When the second ends of the first aggregation line 111, the second aggregation line 112, the third aggregation line 113 and the fourth aggregation line 114 are on the same plane, any one of the second ends of the first aggregation line 111, the second aggregation line 112, the third aggregation line 113 and the fourth aggregation line 114 may be a first end of the antenna body 110, when the second ends of the first aggregation line 111, the second aggregation line 112, the third aggregation line 113 and the fourth aggregation line 114 are not on the same plane, the highest end of the second ends of the first aggregation line 111, the second aggregation line 112, the third aggregation line 113, and the fourth aggregation line 114 may be used as the first end of the antenna main body 110, the reflective disc 190 may be directly disposed on the first end of the antenna main body 110, or may be disposed on the first end of the antenna main body 110 through a connector, and a distance between the reflective disc 190 and the first end of the antenna main body 110 may be adjusted according to actual requirements.

The setting mode of the reflective disc 190 is not unique, for example, the first end of the reflective disc 190 and the antenna main body 110 can be fixedly set when leaving the factory or being installed, so that the reflective disc 190 and the antenna main body 110 are structurally integrated, interference factors caused by installation can be avoided, the working performance is improved, the first end of the antenna main body 110 can be also set through a connecting piece, the type of the connecting piece is not unique, the connecting piece can be a foam connecting piece or a connecting column and the like, further, the reflective disc 190 can also be detachably fixed at the first end of the antenna main body 110 through the connecting piece, the reflective disc 190 is installed when needed, the reflective disc 190 does not need to be detached, the use is convenient, when the reflective disc 190 is damaged and cannot be used, only the reflective disc 190 can be replaced, the integral replacement of. The reflective disc 190 can be regarded as a parasitic antenna element, the antenna element 120 can induce the same phase current on the reflective disc, and the reflective disc 190 and the antenna element 120 are in the same direction, so that the gain of the novel dual-polarized log periodic antenna can be improved.

The first coaxial line 130 and the second coaxial line 140 are respectively disposed on the first collective line 111 and the second collective line 112, as shown in fig. 6, each of the first coaxial line 130 and the second coaxial line 140 includes an inner conductor 131, an insulating dielectric layer 132, and an outer conductor layer 133, which are coaxially disposed, and the insulating dielectric layer 132 is disposed between the inner conductor 131 and the outer conductor layer 133 to ensure that they do not contact each other. When the coaxial cable is 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, far away from the space axis, of the first aggregation line 111 and the second aggregation line 112 so as to generate a potential difference.

Referring to fig. 7, the top ends of the first aggregation line 111 and the second aggregation line 112 are respectively provided with a first through hole 150 and a second through hole 160, the first through hole 150 and the second through hole 160 may have shapes and sizes corresponding to the first coaxial line 130 and the second coaxial line 140, and may also be larger or smaller than the cross section of the coaxial line, the coaxial line disposed on the aggregation line may connect the output end to the through hole on the aggregation line where the coaxial line is located, and further, the inner conductor of the aggregation line connected to the through hole may further extend continuously and is connected to the aggregation line opposite to the aggregation line where the coaxial line is located through the through hole to form a feeding structure. For example, the output end of the second coaxial line 140 disposed on the second aggregation line 112 is connected to the second via 160, while the inner conductor of the output end of the second coaxial line 140 further extends through the second via 160 to be connected to the fourth coaxial line 114, and the arrangement of the first aggregation line 111 and the first coaxial line 130 is also the same, which is not described herein.

In one embodiment, the reflective plate 190 is a circular disk, the radius of the reflective plate 190 does not exceed the length of the largest antenna element in each antenna element 120, and the distance between the reflective plate 190 and the first end of the antenna body 110 matches with a quarter of the wavelength of the antenna element, in which case the gain of the novel dual-polarized log-periodic antenna is high. The shape, size and distance between the reflector 190 and the antenna body 110 are not exclusive, in this embodiment, the reflector is a circular disk, the antenna elements can induce stable in-phase current on the circular disk, the radius of the reflector 190 does not exceed the length of the largest antenna element in each antenna element 120, specifically, the radius of the reflector 190 may be between 0.5 and 1 times the largest size of the antenna, and the circular disk is located near a quarter wavelength of the antenna. Taking the simulation result of the novel dual-polarized log periodic antenna working at the frequency band of 1.7-1.9 Ghz as an example, the radius of the disc is set to be about 27.8mm, the height from the top of the antenna is 40mm, and the highest high gain of 11.4dB is finally realized.

In one embodiment, the dual-polarized log-periodic antenna 10 further comprises a connector, and the reflective plate 190 is fixedly disposed at the first end of the antenna body 110 through the connector. Specifically, the type of connecting piece is not exclusive, can be for foam connecting piece or spliced pole etc. further, the reflecting dish 190 also can be dismantled through the connecting piece and be fixed in the first end of antenna main part 110, installation reflecting dish 190 when needing, need not dismantle, and it is convenient to use, and when reflecting dish 190 damaged and can not use, can only change reflecting dish 190, has avoided dual polarization log-periodic antenna 10 whole replacement, has practiced thrift cost of maintenance.

In one embodiment, the dual-polarized log-periodic antenna 10 further includes a dielectric strip disposed in an area surrounded by the first set line 111, the second set line 112, the third set line 113 and the fourth set line 114. 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 aggregation line 111, the second aggregation line 112, the third aggregation line 113 and the fourth aggregation line 114, so that the dielectric strip is fixed, the working stability is improved, the length of the dielectric strip can be equal to the distance between the antenna oscillators 120 arranged at two ends of the same aggregation line, and the material waste can not be caused on the premise of ensuring the working effect. The dual-polarization log periodic antenna 10 utilizes a quasi-period aligning model, the oscillators are not crossed, the array elements are each pair of oscillators, the four pairs of oscillators are dual-polarized, the length of each layer of oscillators is different, therefore, a wider bandwidth is realized, and the intervals of the array elements are different. The Hansen-Wood's terminal emitting condition is realized by adding the dielectric strips in the middle of the feed collection plate, dielectric strip dielectric constants of all layers of oscillators are different, and a strong terminal emitting array is formed, so that the purpose of improving the gain of the antenna is realized.

In one embodiment, referring to fig. 10, the dual-polarized log-periodic antenna 10 further includes more than two baluns 101, and each balun 101 is connected to a different one of the first aggregation line 111, the second aggregation line 112, the third aggregation line 113 and the fourth aggregation line 114. Although fig. 10 does not show a specific connection manner between the antenna body 110 and the reflection plate 190, the antenna body 110 and the reflection plate 190 may be actually connected by a connection member. Specifically, in the present embodiment, taking the dual-polarized log-periodic antenna 10 as an example that includes the first balun and the second balun, the port of the first balun is connected to the first aggregation line 111, and the port of the second balun is connected to the second aggregation line 112, and further, the port of the balun connected to the aggregation line may further continue to extend to be connected to the aggregation line opposite to the connected aggregation line, so as to constitute the feeding structure. The connection relationship between the other baluns and the assembly line can be analogized, and the description is omitted here. The feed structure formed by more than two baluns can realize the balanced feed of the antenna oscillator and improve the working performance of the dual-polarized log periodic antenna 10.

In one embodiment, the shape of each aggregate line constituting the antenna body 110 is a rectangular parallelepiped to facilitate the mounting of components such as an antenna element, a coaxial line, and the like.

As shown in fig. 5 and 8, in one embodiment, the dual-polarized log-periodic antenna 10 further includes a third coaxial line 170 and a fourth coaxial line 180 respectively disposed on the third collective line 113 and the fourth collective line 114, and the third coaxial line 170 is symmetrical to the first coaxial line 130 about the aforementioned spatial axis, and the fourth coaxial line 180 and the second coaxial line 140 are symmetrical about the aforementioned spatial axis. In one embodiment, the third coaxial line 170 may also be equal in length to the first coaxial line 130, and the fourth coaxial line 180 may be equal in length to the second coaxial line 140. In another embodiment, the third coaxial line 170 is identical to the first coaxial line 130 and the fourth coaxial line 180 is identical to the second coaxial line 140. By providing the coaxial lines symmetrical to the first coaxial line 130 and the second coaxial line 140, the structural symmetry of the dual-polarized log periodic antenna 10 can be ensured, so that the symmetry of the radiation characteristics of the antenna is ensured, and the performance of the antenna is improved.

As shown in fig. 9, in one embodiment, the input impedance of the first and

third aggregation lines

111 and 113 and the first antenna single-polarization structure formed by the first and third

coaxial lines

130 and 170 and the antenna element disposed on the first and

third aggregation lines

111 and 113 is 50 ohms. The input impedance of the second antenna single-polarization structure composed of the second collective line 112 and the fourth collective line 114, and the second coaxial line 140, the fourth coaxial line 180, and the antenna element provided on the second collective line 112 and the fourth collective line 114 is also 50 ohms. The dual-polarized log periodic antenna 10 does not need an impedance transformer, can directly adopt a 50-ohm coaxial line for feeding, and is convenient and stable and strong in adaptability. The top feed adopts coaxial feed which is connected with the integrated line in a clinging manner. Meanwhile, the bottom of the integrated wire can be used for coaxial feeding. Further, in one embodiment, the wires of 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.

In one embodiment, the first through hole 150 is opened closer to the top end than the second through hole 160, so that the inner conductors of the first coaxial line 130 and the second coaxial line 140 are not overlapped when being connected to the third aggregation line 113 and the fourth aggregation line 114, respectively, to avoid interference.

In one embodiment, referring to fig. 10, the high-gain antenna device may further include a reflection plate 102 disposed at the second end of the antenna body 110. Specifically, the second end of the antenna body 110 may be a ground-proximal end, i.e., a bottom end, of the antenna body 110. By arranging the reflecting plate 102, backward beams of the antenna can be converged and reflected out through the reflecting plate 102, so that the front-to-back ratio of the antenna is effectively improved, certain effects on improving the gain and the directionality of the antenna are achieved, and the performance of the antenna is improved.

In an embodiment, referring to fig. 11, the band-pass filter 4 includes a first band-pass filter 41 and a second band-pass filter 42, the frequency shifter 3 includes a transmitting channel frequency shifter 31 and a receiving channel frequency shifter 32, the first band-pass filter 41 is connected to the wireless hot spot device 5, the transmitting channel frequency shifter 31 is connected to the first band-pass filter 41, the antenna switch device 2 is connected to the transmitting channel frequency shifter 31, the second band-pass filter 42 is connected to the wireless hot spot device 5, the receiving channel frequency shifter 32 is connected to the second band-pass filter 42, and the antenna switch device 2 is connected to the receiving channel frequency shifter 32.

Specifically, the WIFI signals in the multichannel novel WIFI signal transceiver are transmitted and received through the signal transmitting channel and the signal receiving channel, respectively, the signal transmitting channel includes the first band pass filter 41 and the transmitting channel frequency shifter 31, and the signal receiving channel includes the second band pass filter 42 and the receiving channel frequency shifter 32. When transmitting a signal, the wireless hotspot device 5 generates a WIFI signal, the frequency of the generated signal is generally high, only a signal of a specific frequency band is reserved after a high-frequency signal is transmitted to the first band-pass filter 41, and then the signal is transmitted to the first frequency shifter, the signal of the specific frequency band is shifted to a low frequency band by the first frequency shifter and then is transmitted to the antenna switch device 2, the high-gain antenna device 1 receives the signal transmitted by the antenna switch device 2 and then radiates to the space, and the transmission of the WIFI signal is completed. Since the signal transmitted by the high-gain antenna device 1 is a low-frequency band signal, the penetration capability is strong, and the signal coverage is large. When receiving signals, the high-gain antenna device 1 receives electromagnetic signals of a space and sends the electromagnetic signals to the second band-pass filter 42 through the antenna switch device 2, the second band-pass filter 42 filters out clutter in the signals and then sends the clutter to the wireless hotspot device 5, and the wireless hotspot device 5 processes the signals and then receives the WIFI signals.

In this embodiment, taking the example that the number of the dual-polarized log-periodic antennas 11 connected to each antenna switch device 2 is sequentially increased, the number of the antenna switch devices 2 is N, the first antenna switch device 2 is connected to two dual-polarized log-periodic antennas 11, the second antenna switch device 2 is connected to three dual-polarized log-periodic antennas 11, and so on, and the nth antenna switch device 2 is connected to N +1 dual-polarized log-periodic antennas 11. Taking the first antenna switch device 2 as an example, the two dual-polarized log-periodic antennas 11 are connected to the antenna switch device 2, the antenna switch device 2 is sequentially connected to the transmitting channel frequency shifter 31, the first band-pass filter 41 and the wireless hot spot device 5, and the antenna switch device 2 is further sequentially connected to the receiving channel frequency shifter 32, the second band-pass filter 42 and the wireless hot spot device 5 to form a signal transmitting channel and a signal receiving channel, respectively. Through all configuring a set of frequency with every antenna switch device 2 and moving device 3 and band-pass filter 4 independently, form multichannel signal transmission passageway and signal reception passageway, can realize the multi-beam configuration, and then can expand the novel WIFI signal transceiver's of multichannel range of application. Because the number of dual-polarized log periodic antennas 11 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 log periodic antennas 11 is, the higher the gain is. During the in-service use, can put into use according to requirements such as signal strength and coverage adjustment dual polarization log periodic antenna 11 that correspond quantity, be favorable to the rational utilization resource, improve the novel WIFI signal transceiver's of multichannel reliability in utilization.

The types of the first band pass filter 41, the second band pass filter 42, the transmission channel frequency shifter 31, and the reception channel frequency shifter 32 are not exclusive, and in this embodiment, taking the high-band signal frequency as 2.4GHz and the low-band signal frequency as 700MHz as an example, both the first band pass filter 41 and the second band pass filter 42 are 2.4GHz band pass filters, which only allow signals with a frequency of 2.4GHz to pass through, and filter signals with other frequencies, thereby improving the quality of transmission signals. The transmission channel frequency shifter 31 is a 2.4GHz to 700MHz frequency shifter, converts a high-frequency signal with a frequency of 2.4GHz into a low-frequency signal with a frequency of 700MHz, and then transmits the low-frequency signal through the antenna switch device 2 by the high-gain antenna device 1, which is beneficial to improving the coverage of the signal. The receiving channel frequency shifter 32 is a 700MHz to 2.4GHz frequency shifter, converts a low-frequency signal with a frequency of 700MHz into a high-frequency signal with a frequency of 2.4GHz, and then sends the high-frequency signal to the second band-pass filter 42, the second band-pass filter 42 filters out signals with other frequencies and only retains signals with a frequency of 2.4GHz, and then sends the signals to the wireless hotspot device 5 for network conversion and sharing, which is beneficial to improving the working performance of WIFI signals. It is understood that the frequency of the high band signal is not limited to 2.4GHz, but may also be 3.5GHz, 5.8GHz or other frequencies, and the frequency of the low band signal is not limited to 700MHz, but may also be 400MHz, 800MHz, 900MHz, 1800MHz, 1900MHz, 2100MHz, 3300MHz or other frequencies, as long as one skilled in the art can realize the purpose. The transmission and the reception of signals are realized by different lines, so that the mutual interference between a transmitting channel and a receiving channel can be reduced, and the performance of signal transmission is improved.

The working state switching of the receiving or transmitting of the WIFI signal can also be realized by the antenna switch device 2, the antenna switch device 2 includes a signal receiving circuit, a signal transmitting circuit and a switch, the switch is connected to the high gain antenna device 1, and is connected to the receiving channel frequency shifter 32 through the signal receiving circuit, and is connected to the transmitting channel frequency shifter 31 through the signal transmitting circuit. When the changeover switch is turned on with the signal transmission circuit, the antenna switching device 2 controls the high-gain antenna device 1 to be in a transmission state, when the changeover switch is turned on with the signal reception circuit, the antenna switching device 2 controls the high-gain antenna device 1 to be in a reception state, and when the changeover switch is in an open state, the high-gain antenna device 1 does not work and the device is in a shutdown state. The switch may be connected to the controller, and the transmission, reception, or shutdown operation of the high-gain antenna apparatus 1 may be switched according to a control signal sent by the controller, or the switch may be manually controlled, and the user manually switches the operation according to his or her own needs.

In an embodiment, referring to fig. 11, the multichannel novel WIFI signal transceiver further includes a third band-pass filter 61, one end of the third band-pass filter 61 is connected to the transmission channel frequency shifter 31, and the other end is connected to the antenna switching device 2. The type of the third band-pass filter 61 is not unique, and for example, the high-band signal frequency is 2.4GHz, and the low-band signal frequency is 700MHz, the transmission channel frequency shifter 31 is a 2.4GHz to 700MHz frequency shifter, and can convert the high-frequency signal with the frequency of 2.4GHz into a low-frequency signal with the frequency of 700MHz and send the low-frequency signal to the third band-pass filter 61, and the third band-pass filter 61 is a 700MHz band-pass filter, so that it can be ensured that the signal sent to the antenna switching device 2 only includes the low-frequency signal with the frequency of 700MHz, and the purity of the signal is improved. It is understood that in other embodiments, the third band pass filter 61 may also be a band pass filter of other frequencies, and is determined by the frequency of the signal converted by the transmission channel frequency shifter 31 connected to the band pass filter, so as to ensure the frequency requirement of the signal.

In an embodiment, referring to fig. 11, the multichannel WIFI signal transceiver further includes a transmitting channel amplifier 71 and a receiving channel amplifier 72, wherein one end of the transmitting channel amplifier 71 is connected to the transmitting channel frequency shifter 31, the other end of the transmitting channel amplifier 71 is connected to the third band-pass filter 61, one end of the receiving channel amplifier 72 is connected to the receiving channel frequency shifter 32, and the other end of the receiving channel amplifier 72 is connected to the antenna switch device 2. The transmission channel amplifier 71 and the reception channel amplifier 72 may amplify signals to improve reliability of signal transmission.

Specifically, the types of the transmission channel amplifier 71 and the reception channel amplifier 72 are not unique, for example, in this embodiment, the transmission channel amplifier 71 is a power amplifier, the reception channel amplifier 72 is a low noise amplifier, when sending a WIFI signal, the wireless hotspot device 5 sends the signal to the power amplifier for power amplification, so that the output signal has a sufficiently large power to meet the requirement, and the amplified signal is radiated into the space by the high-gain antenna device 1 through the antenna switch device 2, thereby realizing sending of the WIFI signal. When receiving a WIFI signal, the high-gain antenna device 1 can sense an electromagnetic signal in a space and then send the electromagnetic signal 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 wireless hotspot device 5 through the band-pass filter device 4 to be demodulated to obtain the WIFI signal, and the WIFI signal is received. It is understood that in other embodiments, the transmit channel amplifier 71 and the receive channel amplifier 72 may be other types of amplifiers, as deemed practicable by those skilled in the art.

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

representing a dual polarized log periodic antenna 11. In one embodiment, referring to fig. 12, the signal passes through the dual-band by using a conventional WIFI AP (Access Point) (e.g., 2.4GHz) and frequency shifting to a lower frequency band (e.g., 700MHz) more suitable for large coverageThe polarized log periodic antenna 11 transmits (receives back). In one embodiment, referring to fig. 13, the signal is amplified and then transmitted (received back) through dual-polarized log-periodic antenna 11 by frequency shifting to a lower frequency band (e.g., 700MHz) that is preferably covered by a large amplitude using a conventional WIFI AP (e.g., 2.4 GHz). The dual-polarized log-periodic antenna 11 is adopted to improve the overall gain of the antenna, the characteristic of good transmission characteristic of low-frequency signals is utilized to improve the coverage effect, the characteristic of high gain of the dual-polarized log-periodic antenna is utilized to solve the defect that the transmission distance of the existing WIFI is short, two advantages of the dual-polarized log-periodic antenna and low-frequency band transmission are integrated, and the wide coverage of the WIFI can be realized.

Above-mentioned novel WIFI signal send-receiver device of multichannel, high gain antenna device adopts dual polarization log periodic antenna to constitute the antenna array, dual polarization log periodic antenna adopts the cross structure to realize the dual polarization constitution of two single polarization antenna unit, reducible signal polarization loss, the gain of the perpendicular both sides of level that makes the antenna is all good, the antenna element can respond to the same phase current on the reflecting disc, improve the gain, the assembly line of every antenna and the antenna element that sets up above that all can the piecemeal dismouting realize simultaneously, moreover, the steam generator is simple in structure, and the manufacturing and installation are convenient for. The dual-polarized log periodic antenna is adopted to form an antenna array, and the high-gain antenna device is designed into a three-dimensional array structure, so that the high-gain antenna device can form vertical plane beams, and the integral gain of the antenna is improved. In addition, because the low-frequency band signal wavelength is longer, the penetrating power is stronger, move the WIFI signal to the high-gain antenna device after the low-frequency band and launch again and can increase the coverage of WIFI signal, and do not receive the separation of barriers such as building or trees, more be adapted to bad weather. Each antenna switch device is connected corresponding dual polarization log periodic antenna respectively, and each frequency is moved the device and is connected corresponding band-pass filter device respectively, and each band-pass filter device connects corresponding wireless hotspot device respectively, can form the signal transmission passageway of multiple input multiple output, improves the novel WIFI signal transceiver's of multichannel reliability of use.

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

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

Claims

1. A novel multi-channel WIFI signal receiving and transmitting device is characterized by comprising a wireless hotspot device, a band-pass filtering device, a frequency moving device, an antenna switch device and a high-gain antenna device, wherein the high-gain antenna device comprises a substrate and two or more than two dual-polarized log-periodic antennas, and each dual-polarized log-periodic antenna is arranged on the substrate; the number of the wireless hotspot devices, the number of the band-pass filtering devices, the number of the frequency moving devices and the number of the antenna switching devices are the same and are two or more, each band-pass filtering device is respectively connected with the corresponding wireless hotspot device and the corresponding frequency moving device, and each antenna switching device is respectively connected with the corresponding frequency moving device and the corresponding dual-polarized log-periodic antenna; the dual-polarized log-periodic antenna comprises:

2. The novel WIFI signal transceiver of multichannel of claim 1, wherein dual-polarized log periodic antennas of different frequency bands are arranged crosswise on the substrate.

3. The novel WIFI signal transceiver of multichannel of claim 1, wherein the reflector plate is a circular disc, and the radius of the reflector plate does not exceed the length of the largest antenna element in each antenna element.

4. The novel WIFI signal of multichannel of claim 1, wherein the distance between the reflective plate and the first end of the antenna body is matched to one quarter of the wavelength of the antenna element.

5. The novel WIFI signal transceiver of multichannel of claim 1, characterized in that, the dual-polarized log periodic antenna further includes a dielectric strip, and the dielectric strip is disposed in an area surrounded by the first set of lines, the second set of lines, the third set of lines and the fourth set of lines.

6. The novel WIFI signal transceiver of multichannel of claim 1, characterized in that, said dual-polarized log periodic antenna further comprises more than two baluns, each said balun connects to different ones of said first, second, third and fourth set of lines, respectively.

7. The novel WIFI signal transceiver of multichannel of claim 1, characterized in that, the dual polarized log periodic antenna further comprises:

a third coaxial line disposed on the third collective line, symmetrical to the first coaxial line with respect to the spatial axis;

and the fourth coaxial line is arranged on the fourth collecting line and is symmetrical to the second coaxial line about the space axis.

8. The novel multichannel WIFI signal transceiver device of claim 7, characterized in that, the first set line, the third set line and the input impedance of the first antenna single polarization structure formed by the first coaxial line, the third coaxial line and the antenna element on the first set line and the third set line and the input impedance of the second antenna single polarization structure formed by the second coaxial line, the fourth coaxial line and the antenna element on the second set line and the fourth set line are both 50 ohms.

9. The novel WIFI signal transceiver of multichannel of claim 7, characterized in that 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.

10. The novel WIFI signal of multichannel of claim 1, wherein the dual-polarized log periodic antenna further comprises a reflector plate disposed at the second end of the antenna body.