CN211789485U

CN211789485U - High-gain WIFI signal transceiver

Info

Publication number: CN211789485U
Application number: CN202020463928.4U
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 high-gain WIFI signal transceiver. The device comprises a wireless hot spot 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 more than two dual-polarized log-periodic antennas arranged on the substrate, the dual-polarized log-periodic antennas adopt a cross-shaped structure to realize dual polarization of two single-polarized antenna units, the signal polarization loss can be reduced, and through arranging a lens on an antenna main body, the lens can compensate and correct non-uniform spherical waves of the antenna to obtain uniform spherical waves, and the phase compensation of the antenna waveforms is realized. The high-gain antenna device is designed into a three-dimensional array structure, so that the high-gain antenna device can form vertical plane wave beams, and the integral gain of the antenna is further improved. The WIFI signal is moved to a low frequency band and then is transmitted out through the high-gain antenna device, so that the coverage range of the WIFI signal can be enlarged, and the use reliability is high.

Description

High-gain WIFI signal transceiver

Technical Field

The utility model relates to a wireless technology field especially relates to a high-gain WIFI signal transceiver.

Background

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

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

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a high-gain WIFI signal transceiver for solving the problem of low reliability of the conventional WIFI signal transmission device.

A high-gain 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 wireless hotspot device is connected with the band-pass filtering device, the band-pass filtering device is connected with the frequency moving device, the frequency moving device is connected with the antenna switching device, the antenna switching device is connected with each dual-polarized log-periodic antenna, and 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 lens is arranged at the first end of the antenna main body, and the plane of the lens 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 high-gain WIFI signal transceiver, 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 that two dual polarizations of single polarization antenna element constitute, reducible signal polarization loss, make the gain of the perpendicular both directions of level of antenna all good, through set up lens in the antenna main part, make lens can compensate the correction with the inhomogeneous spherical wave of antenna, obtain even spherical wave, thereby realize the phase compensation to the antenna waveform, finally improve the whole gain of antenna, the assembly line of every antenna and the antenna element that sets up above-mentioned can all the piecemeal dismouting realize simultaneously, moreover, the steam generator is simple in structure, and the installation is convenient for make. 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, and 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, use the reliability height.

Drawings

Fig. 1 is a block diagram of a high-gain WIFI signal transceiver in an 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 high-gain WIFI signal transceiver device in another embodiment;

fig. 12 is a schematic structural diagram of a high-gain WIFI signal transceiver in an embodiment;

fig. 13 is a schematic structural diagram of a high-gain WIFI signal transceiver in another embodiment.

Detailed Description

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

In an embodiment, please refer to fig. 1 and fig. 2, which provide a high-gain WIFI signal transceiver, including 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 is connected to the band-pass filter device 4, the band-pass filter device 4 is connected to the frequency moving device 3, the frequency moving device 3 is connected to the antenna switch device 2, and the antenna switch device 2 is connected to each 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 is primarily responsible for providing access to and from a wired local area network by high-gain WIFI signal transceivers, through which wireless workstations within the coverage area of the access point of wireless hotspot device 5 may communicate with one another. 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 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 frequency moving device 3, the frequency moving device 3 can move the frequency of the signal, the low-frequency band signal is moved to a high-frequency band, the moved signal is transmitted to the band-pass filter device 4 for filtering, the filtered signal is sent to the wireless hotspot device 5, and a user can access the high-gain WIFI signal transceiver from a wired local area network through the 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, dual polarized log periodic antenna 10 includes antenna body 110, antenna element 120, first coaxial line 130, second coaxial line 140, and lens 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 lens 190 is disposed at a first end of the antenna body 110, and the plane of the lens 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, second, third and

fourth aggregation lines

111, 112, 113 and 114 are on the same plane, any one of the second ends of the first, second, third and

fourth aggregation lines

111, 112, 113 and 114 may be a first end of the antenna body 110, when the second ends of the first, second, third and

fourth aggregation lines

111, 112, 113 and 114 are not on the same plane, the highest one of the second ends of the first, second, third and

fourth aggregation lines

111, 112, 113 and 114 may be a first end of the antenna body 110, the lens 190 may be directly disposed on the first end of the antenna body 110 or disposed on the first end of the antenna body 110 through a connector, and a distance between the lens 190 and the first end of the antenna body 110 may be adjusted according to actual needs. The lens 190 may be fixed to the first end of the antenna body 110 at the time of shipment or installation, for example, so that the lens 190 and the antenna body 110 are structurally integrated, thereby avoiding interference factors caused by installation and improving the working performance.

The antenna itself radiates outward in the form of spherical waves, so its equiphase surface is a spherical surface, and for the end-fire array, its radiation most directionally will also be diffused in the form of spherical waves. By arranging the lens 190 on the antenna main body 110, the lens 190 can compensate and correct the non-uniform spherical wave of the antenna to obtain the uniform spherical wave, so that the phase compensation of the antenna waveform is realized, and the overall gain of the antenna is finally improved. It should be noted that a specific principle of improving the antenna gain is to utilize an equiphase gradient to implement phase compensation, and finally achieve the purpose of improving the antenna gain. Further, in one embodiment, lens 190 may be a dielectric material, such as a low-k organic material, including glass reinforced plastic, PTFE (polytetrafluoroethylene), and the like.

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, lens 190 is a spherical lens. The spherical lens has an arc-shaped spherical surface, and can better compensate and correct the non-uniform spherical waves of the antenna, so that the non-uniform spherical waves of the antenna are corrected into uniform spherical waves, and the gain of the antenna is improved. Further, the spherical lens includes at least one convex surface, and in this embodiment, the spherical lens includes a plane and a convex surface, and the convex surface may be disposed toward the antenna main body 110, and the plane is located at a side away from the antenna main body 110, or the plane may also be disposed toward the antenna main body 110, and the convex surface is located at a side away from the antenna main body 110, and may be specifically adjusted according to actual requirements.

In one embodiment, dual-polarized log-periodic antenna 10 further comprises a connector, through which lens 190 is fixedly disposed at a first end of antenna body 110. Specifically, the type of connecting piece is not exclusive, can be for foam connecting piece or spliced pole etc. further, lens 190 also can dismantle the first end that is fixed in antenna main part 110 through the connecting piece, and installation lens 190 need not dismantle when needing, and it is convenient to use, and when lens 190 damaged and can not be used, can only change lens 190, has avoided dual polarization log periodic antenna 10 whole to replace, 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 lens 190, the antenna body 110 and the lens 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, each collective line constituting the antenna body is shaped as a rectangular parallelepiped to facilitate 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. 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 transmission and reception of the WIFI signal in the high-gain WIFI signal transceiver are transmitted through the signal transmission channel and the signal reception channel respectively, the signal transmission channel includes the first band-pass filter 41 and the transmission channel frequency shifter 31, and the signal reception channel includes the second band-pass filter 42 and the reception 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.

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 high-gain 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 high-gain 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 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 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.

In addition, when high gain antenna device 1 is above-mentioned spatial structure, the quantity of antenna switch device 2 is not unique, because high gain antenna device 1 includes two at least dual polarization log periodic antennas 11, these dual polarization log periodic antennas 11 can all connect same antenna switch device 2, the quantity of dual polarization log periodic antennas 11 who puts into use is adjusted by same antenna switch device 2, can also effectively reduce the occupation space of device, it is swift to use, or, each dual polarization log periodic antenna 11 also can connect different antenna switch device 2 respectively, control different dual polarization log periodic antennas 11 respectively by different antenna switch device 2 and can reduce mutual interference, improve high gain WIFI signal transceiver's operating accuracy.

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, a conventional WIFI AP (Access Point) (e.g., 2.4GHz) is used to transmit (receive) a signal through the dual-polarized log-periodic antenna 11 by frequency shifting to a low frequency band (e.g., 700MHz) suitable for large-amplitude coverage. 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). A plurality of dual-polarized log periodic antennas 11 form a three-dimensional array, the overall gain of the antenna is improved through the high-gain antenna device 1, the characteristic of good transmission characteristic of low-frequency signals is utilized, the coverage effect is improved, the characteristic of high gain of the three-dimensional array antenna is utilized, the defect that the existing WIFI transmission distance is short is overcome, two advantages of dual-polarized log periodic antennas and low-frequency band transmission are integrated, and the WIFI large-amplitude coverage can be achieved.

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 high-gain WIFI signal transceiving 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 dual-polarized log-periodic antennas, and each dual-polarized log-periodic antenna is arranged on the substrate; the wireless hotspot device is connected with the band-pass filtering device, the band-pass filtering device is connected with the frequency moving device, the frequency moving device is connected with the antenna switching device, the antenna switching device is connected with each dual-polarized log-periodic antenna, and the dual-polarized log-periodic antenna comprises:

2. The high-gain WIFI signal transceiver device of claim 1, wherein dual-polarized log periodic antennas of different frequency bands are arranged in the substrate in a crossed manner.

3. The high-gain WIFI signal transceiver of claim 1, wherein said lens is a spherical lens.

4. The high-gain WIFI signal transceiver device of claim 1, wherein 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.

5. The high-gain WIFI signal transceiver of claim 1, wherein the dual-polarized log-periodic antenna further comprises more than two baluns, each balun is connected to a different one of the first, second, third and fourth lines respectively.

6. The apparatus according to claim 1, wherein each of the plurality of lines is shaped as a rectangular parallelepiped.

7. The high-gain WIFI signal transceiver of claim 1, wherein said 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 high-gain WIFI signal transceiver of claim 7, wherein the input impedance of the first antenna single-polarization structure composed of the first and third assembly lines and the first and second coaxial lines, the third coaxial line and the antenna element disposed on the first and third assembly lines and the input impedance of the second antenna single-polarization structure composed of the second and fourth assembly lines and the second and fourth coaxial lines and the antenna element disposed on the second and fourth assembly lines are all 50 ohms.

9. The high-gain WIFI signal transceiver of claim 7, wherein 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 high-gain WIFI signal transceiver of claim 1, wherein said dual-polarized log periodic antenna further comprises a reflector plate, said reflector plate is disposed at a second end of said antenna body.