CN211789472U

CN211789472U - Novel WIFI receiving and dispatching device

Info

Publication number: CN211789472U
Application number: CN202020498721.0U
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: 2020-04-08
Filing date: 2020-04-08
Publication date: 2020-10-27
Anticipated expiration: 2030-04-08

Abstract

The utility model relates to a novel WIFI transceiver. The device includes wireless hot spot device, band-pass filter, the frequency moves the device, antenna switch device and high gain antenna device, and high gain antenna device includes the base plate and sets up the dual polarization yagi antenna more than two on the base plate, and dual polarization yagi antenna is through designing novel reflector and active oscillator to adopt the dual polarization structure, can reduce signal transmission's polarization loss, through setting up the reflecting disc, make the dual polarization active oscillator can respond to the cophase current on the reflecting disc, improve the whole gain of antenna. 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

Novel WIFI receiving and dispatching device

Technical Field

The utility model relates to a wireless technology field especially relates to a novel WIFI 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 novel WIFI transceiver device to solve the problem of low reliability of the conventional WIFI signal transmission device.

A novel WIFI transceiver comprises a wireless hotspot device, a band-pass filter 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 yagi antennas, and each dual-polarized yagi 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 yagi antenna, and the dual-polarized yagi antenna comprises a reflecting disc, an antenna axial rod, a dual-polarized reflector, a dual-polarized active oscillator and a dual-polarized director;

the dual-polarized reflector, the dual-polarized active oscillator, the dual-polarized director and the reflecting disc are sequentially arranged on the antenna axial rod; the dual-polarized reflector is arranged at the first end of the antenna axial rod, the dual-polarized director is arranged at the second end of the antenna axial rod, the reflecting disc and the dual-polarized director are arranged at intervals and are far away from the first end of the antenna axial rod, and the plane where the reflecting disc is located is perpendicular to the antenna axial rod;

the dual-polarized director comprises a first director and a second director which are orthogonally arranged, the first director and the second director comprise a plurality of metal pieces arranged on the axial rod of the antenna, each metal piece is perpendicular to the axial rod of the antenna, a vertical foot is superposed with the midpoint of each metal piece, the length of each metal piece is shorter than that of the adjacent metal piece close to the dual-polarized active oscillator, and when the first director and the second director orthogonally form the dual-polarized director, every two metal pieces with the same length are kept orthogonal and are positioned in the same plane;

the dual-polarized reflector comprises a first reflector and a second reflector which are orthogonally arranged, the first reflector and the second reflector respectively comprise a metal piece arranged on two sides of the axial rod of the antenna, the metal piece of the dual-polarized reflector is perpendicular to the axial rod of the antenna, a foot is coincided with the midpoint of the metal piece, the first reflector and the first director are positioned in the same plane, the second reflector and the second director are positioned in the same plane, and the length of the metal piece of the dual-polarized reflector is longer than that of any metal piece of the dual-polarized director;

the dual-polarized active oscillator comprises two single-polarized active oscillators, namely a first active oscillator and a second active oscillator, which are orthogonally arranged, wherein the first active oscillator and the second active oscillator are respectively composed of two L-shaped metal pieces symmetrically arranged on two sides of an antenna axial rod, one arm of each L-shaped metal piece is a connecting arm and is attached to the antenna axial rod, a port of each connecting arm is connected with the dual-polarized reflector, the other arm of each L-shaped metal piece is a functional arm, and the length of each functional arm is longer than that of the director and shorter than that of the reflector; meanwhile, the first active oscillator and the first reflector are in the same plane, and the second active oscillator and the second reflector are in the same plane.

Above-mentioned novel WIFI transceiver, dual polarization yagi antenna are through designing novel reflector and active oscillator to adopt dual polarization structure, can reduce signal transmission's polarization loss, through setting up the reflecting disc, make dual polarization active oscillator can respond to the cophase current on the reflecting disc, improve the whole gain of antenna. The high-gain antenna device adopts dual-polarized yagi antennas to form an antenna array to form a three-dimensional array structure, so that the high-gain antenna device can form vertical plane beams and can improve gain. 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 novel WIFI transceiver in one embodiment;

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

fig. 3 is a schematic distribution diagram of a dual-polarized yagi antenna in one embodiment;

fig. 4 is a schematic distribution diagram of a dual-polarized yagi antenna in another embodiment;

fig. 5 is a front view of the overall structure of a dual polarized yagi antenna in an embodiment;

fig. 6 is a rear view of the overall structure of the dual polarized yagi antenna of an embodiment;

FIG. 7 is an exploded view of a dual polarized yagi antenna according to one embodiment;

fig. 8 is an elevation view of an embodiment of a dual polarized yagi antenna after detonation;

FIG. 9 is a diagram illustrating an embodiment of an active oscillator structure;

fig. 10 is a side view of a dual polarized yagi antenna in an embodiment;

FIG. 11 is a schematic diagram of one direction of a feeding structure in one embodiment;

FIG. 12 is a schematic diagram of another direction of the feeding structure in one embodiment;

fig. 13 is a front view of the overall structure of a dual polarized yagi antenna of another embodiment;

fig. 14 is a rear view of the overall structure of a dual polarized yagi antenna of another embodiment;

fig. 15 is a block diagram of a novel WIFI transceiver in another embodiment;

fig. 16 is a schematic structural diagram of a novel WIFI transceiver in an embodiment;

fig. 17 is a schematic structural diagram of a novel WIFI 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, a novel WIFI 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 yagi antennas 11, each dual-polarized yagi 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 yagi 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 a wired local area network by the novel WIFI transceiver and to the novel WIFI transceiver from the wired local area network, through which wireless workstations within the coverage of the access point of wireless hotspot device 5 can communicate with each other. 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 novel WIFI transceiver 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 yagi antenna 11 and the frequency moving device 3, when the dual-polarized yagi antenna 11 is needed to work, the antenna switching device 2 is switched on, the dual-polarized yagi antenna 11 and the frequency moving device 3 can normally transmit signals, and when the antenna switching device 2 is switched off, the dual-polarized yagi antenna 11 is in a standby state. The dual-polarized yagi antenna 11 is a carrier for receiving and sending signals, the dual-polarized yagi antenna 11 can sense electromagnetic signals in a space and can also transmit the signals, the WIFI signals are received and sent, and the use is convenient and fast.

The high-gain antenna device 1 includes a substrate 10 and two or more dual-polarized yagi antennas 11, and each dual-polarized yagi 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 the different dual polarized yagi antennas 10 may be the same or different. In this embodiment, the dual-polarized yagi antennas 10 of different frequency bands are arranged in a crossed manner on the substrate 10. As shown in fig. 3, the dual-polarized yagi 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 yagi antennas 10 of different frequency bands are different, and as shown in fig. 4, a cross-type high-gain array mode diagram between the dual-polarized yagi antennas 10 of different frequency bands is shown, where the frequency band 1 antenna is a low-frequency antenna and has a high height, and the frequency band 2 antenna is a high-frequency antenna and has a low height. The dual-polarized yagi antennas with different frequency bands are placed in a crossed mode, namely, the space between two dual-polarized yagi antenna units is enlarged, the effective caliber area is indirectly increased, and the antenna gain is improved.

As shown in fig. 5 and 6, dual polarized yagi antenna 10 comprises a reflective disc 400, a dual polarized director 110, a dual polarized active element 120, a dual polarized reflector 130 and an antenna axial rod 140. The dual-polarized director 110, the dual-polarized active oscillator 120, the dual-polarized reflector 130 and the reflecting disc 400 are sequentially arranged on the antenna axial rod 140; the dual-polarized reflector 130 is disposed at a first end of the antenna axial rod 140, the dual-polarized director 110 is disposed at a second end of the antenna axial rod 140, the reflective disc 400 is disposed at an interval from the dual-polarized director 110 and away from the first end of the antenna axial rod 140, and a plane of the reflective disc 400 is perpendicular to the antenna axial rod 140.

Wherein, the setting mode of reflecting disc 400 is not exclusive, for example can be when leaving the factory or installing the fixed first end that sets up at antenna axis pole 140, with the holding position fixed, make reflecting disc 400 and antenna axis pole 140 structural integration, improve working property, also can dismantle the first end that is fixed in antenna axis pole 140, install reflecting disc 400 when needing, need not dismantle, it is convenient to use, and when reflecting disc 400 damaged out of service, can only change reflecting disc 400, the whole replacement of dual polarization yagi antenna has been avoided, and maintenance cost is saved. The reflective disc 400 can be regarded as a parasitic antenna element, the dual-polarized active element 120 can induce the same phase current on the reflective disc 400, and the reflective disc 400 and the dual-polarized active element 120 are in the same direction, so that the gain of the dual-polarized yagi antenna can be improved.

Further, in one embodiment, the reflective plate 400 is a circular disk, and the radius of the reflective plate 400 does not exceed the length of the dual-polarized reflector 130. The distance between the reflective disc 400 and the second end of the axial rod 140 of the antenna matches one quarter of the wavelength of the dual polarized active element 120, in which case the gain of the dual polarized yagi antenna is high. The shape, size and distance of the reflective disk 400 from the second end of the axial rod 140 of the antenna is not exclusive, in this embodiment the reflective disk is a circular disk on which the dual-polarized active elements 120 can induce stable in-phase currents, the radius of the reflective disk 400 does not exceed the length of the dual-polarized reflector 130, and in particular, in other embodiments the radius of the reflective disk 400 can be between 0.5 and 1 times the length of the dual-polarized reflector, and the circular disk is located about a quarter wavelength from the dual-polarized director. Taking the simulation result of the dual-polarized yagi antenna working in the frequency band of 1.7-1.9 Ghz as an example, the radius of the reflecting disc 400 is set to be about 27.8mm and is 40mm away from the dual-polarized director, and finally, the high gain of 11.4dB at most is realized.

It should be noted that fig. 5 only shows the overall structure of the dual-polarized yagi antenna, and the detailed descriptions of the specific structures of the dual-polarized director 110, the dual-polarized active element 120 and the dual-polarized reflector 130 will be provided in the following fig. 3-8.

In one embodiment, as shown in fig. 5, the dual-polarized yagi antenna further includes a reflection plate 300, and the reflection plate 300 is disposed on a side of the dual-polarized reflector 130 away from the second end. Further, in one embodiment, the dual-polarized reflector 130 is disposed on the reflection plate 300. The reflective plate 300 is a metal plate having a rectangular shape, a circular shape, a regular polygon shape, or the like, and is used to enhance reflection and improve the front-to-back ratio of the antenna.

Further, in an embodiment, although not shown, the dual-polarized yagi antenna further includes a radome, where one end of the radome is open, and the other end of the radome is closed, and the open end of the radome is fixed on the reflector 300. The dual-polarized yagi antenna can be arranged in the antenna housing cavity structure to protect each component of the antenna. Further, in other embodiments, the antenna housing may have an opening at one end, the other end is a spherical lens structure, and the opening end is fixed on the reflection plate 300, and the other end of the antenna housing is made into the spherical lens structure, so that the waveform radiated by the antenna can be corrected and compensated, the non-uniform spherical wave is corrected into the uniform spherical wave, the effect of correcting and compensating the waveform of the antenna is achieved, and the gain of the antenna is improved.

Further, in one embodiment, the surface of the radome is coated with a left-handed material, wherein the radome surface refers to the inner surface of the radome, and the left-handed material is a material with an artificial periodic structure having both negative dielectric constant and magnetic permeability, wherein the electric field component, the magnetic field component and the wave vector of the propagating electromagnetic wave satisfy the left-handed rule, the phase velocity and the group velocity are opposite, and a plurality of peculiar physical optical phenomena which do not exist in nature can be presented, and the peculiar physical optical phenomena mainly have negative refraction characteristics.

It should be noted that fig. 5 also shows a coaxial feed line 500, and the coaxial feed line 500 will be explained in detail later herein, and fig. 6 is a rear view corresponding to fig. 5, and the dual-polarized yagi antenna in fig. 6 has the same overall structure as the dual-polarized yagi antenna provided in fig. 5, so that detailed description of fig. 6 is omitted here.

For convenience of description, the two ends (i.e., the first end and the second end) of the axial rod of the antenna are not referred to as an a end and a B end, respectively, where the a end represents the second end, the B end represents the first end, the dual-polarized director 110 is disposed at the a end, and the dual-polarized reflector 130 is disposed at the B end. In one embodiment, as shown in fig. 7 and 8, the dual-polarized directors 110, the dual-polarized active elements 120 and the dual-polarized reflectors 130 are independent and are sequentially arranged on an antenna axial rod (not shown), it should be noted that in the dual-polarized yagi antenna, the number of the dual-polarized directors 110 may be plural and the lengths thereof are different, the lengths of different dual-polarized directors 110 are gradually shortened from the end a to the end B, for example, four dual-polarized directors 110 are shown in fig. 7 and 8, and the length of the dual-polarized reflector 130 is the longest, the dual-polarized directors 110 are slightly shorter than the dual-polarized reflector 130, and the length of the dual-polarized active elements 120 is the shortest.

As shown in fig. 7 and 8, the dual-polarized director 110 includes a first director and a second director which are orthogonally arranged, the first director and the second director are the same, and are composed of a plurality of metal pieces arranged on an antenna axial rod (not shown), where the metal pieces may be metal rods or metal strips, the metal pieces are perpendicular to the antenna axial rod, and the vertical feet coincide with the middle point of the metal pieces, so that the two ends of the metal pieces are symmetrically arranged on the antenna axial rod. Meanwhile, the length relationship among the metal pieces is as follows: the lengths of the metal parts are different, and the length of each metal part is shorter than that of the adjacent metal part close to the dual-polarized active oscillator, namely the lengths of the metal parts are sequentially shortened along the direction from the end B to the end A; or the metal pieces can be divided into a plurality of groups along the direction from the end B to the end A, the length of the plurality of metal pieces in each group is the same, but the length of each group of metal pieces is shorter than that of the adjacent group of metal pieces close to the end B. Meanwhile, when the first director and the second director are orthogonally combined into the dual-polarized director, the metal pieces with the same length are also kept orthogonal and in the same plane, namely the metal pieces with the same length form a cross shape as shown in the figure and are arranged on the axial rod of the antenna.

The dual-polarized reflector 130 includes a first reflector and a second reflector which are orthogonally arranged, the first reflector and the second reflector are the same and respectively composed of a metal piece arranged on the antenna axial rod, the metal piece is perpendicular to the antenna axial rod, and the vertical foot coincides with the midpoint of the metal piece, so that two ends of the metal piece are symmetrically arranged on the antenna axial rod, and the first reflector and the second reflector are in the same plane. The length of the piece of metal of dual-polarized reflector 130 is longer than the length of any piece of metal of dual-polarized director 110.

As shown in fig. 9, the dual-polarized active element 120 includes two identical single-polarized active elements that are orthogonally disposed, that is, a first active element and a second active element, and each of the two same single-polarized active elements is composed of two L-shaped metal elements that are symmetrically disposed on two sides of an antenna axial rod, one arm of each L-shaped metal element is a connecting arm 121 attached to the antenna axial rod, and a port 122 on the connecting arm 121 is connected to a corresponding metal element of the dual-polarized reflector 130, that is, one L-shaped metal element of the first active element is connected to a metal element on one side of the first reflector, the other L-shaped metal element of the first active element is connected to a metal element on the other side of the first reflector, and the second active element is also referred to as a second active element. The other arm of the L-shaped metal piece is a functional arm 123, and the sum of the lengths of the two functional arms of the active element, which are arranged on the two sides of the antenna axial rod, is greater than the length of any metal piece of the dual-polarization director 101 and less than the length of the metal piece of the dual-polarization reflector 130. The angle between the connecting arm 121 and the functional arm 123 of the L-shaped metal member can be adjusted according to the actual signal transceiving requirement, and in one embodiment, the angle between the connecting arm 121 and the functional arm 123 of the L-shaped metal member is 90 °.

Referring to fig. 10, the relationship between dual-polarized director 110, dual-polarized active element 120 and dual-polarized reflector 130 further comprises: the first active oscillator, the first reflector and the first director are positioned in the same plane, the second active oscillator, the second reflector and the second director are positioned in the same plane, and the view of the whole antenna from the A end to the B end is approximately in a cross shape.

Referring to fig. 11 and 12, in one embodiment, a feeding structure 200 is disposed on each of the first and second active elements of the dual-polarized active element 130, and includes a metal bump 201, a coaxial line 202, a supporting member 203 and a metal shell 204, the metal bump 201 is used as a feeding point, and is disposed on one of the functional arms 123a of the single-polarized active element for receiving feeding, a port at one end of the coaxial line 202 is connected to the metal bump 201 for transmitting current to the active element to drive the antenna to operate, the supporting member 203 is wrapped around the coaxial line 202 for isolating the coaxial line 202 from the external environment, and in one embodiment, the supporting member is made of teflon and further serves as an insulation, the metal shell 204 is disposed outside the supporting member 203, and a portion of the metal shell 204 is embedded in the other functional arm 123b where the metal bump 201 is not disposed, for grounding the metal housing so that the coaxial line 202 forms a potential difference with the metal housing 204.

In one embodiment, the dual polarized yagi antenna further comprises a feed input assembly connected to the feed structure on the first active element and to the feed structure on the second active element. The feed input assembly is used for inputting feed to a dual-polarized reflector, a dual-polarized active oscillator and a dual-polarized director in the dual-polarized yagi antenna, so that the dual-polarized yagi antenna can receive the feed to normally work.

Further, in one embodiment, the feed input assembly is disposed at the first end of the axial rod of the antenna. It will be appreciated that in other embodiments the feed input assembly may also be provided at the second end of the axial rod of the antenna.

Further, in an embodiment, referring to fig. 5 and 6, the feeding input assembly includes a coaxial feeding line 500, the coaxial feeding line 500 connects the feeding structure on the first active element and the feeding structure on the second active element, wherein the dual-polarized active element 120 includes the first active element and the second active element. The coaxial feed line 500 may be a 50 ohm coaxial line, corresponding to a dual polarized yagi antenna with an input impedance of 50 ohms. By adopting the coaxial feed line 500 to provide a feed structure for feeding the first active oscillator and the second active oscillator, an impedance converter is not needed, and the feed cost is saved.

In another embodiment, reference may be made to fig. 13 and 14, where fig. 13 differs from fig. 5 in the structure of the feed input assembly, and in fig. 13, the feed input assembly includes a balun feed 600, and the balun feed 600 connects the feed structure on the first active element and the feed structure on the second active element. The dual-polarized active oscillator 120 includes a first active oscillator and a second active oscillator. The balun feed device 600 is a balun, and balanced feeding of the antenna element can be realized by the balun feed device 600.

In one embodiment, the antenna axial rod is a square rod, and the antenna axial rod is a metal support rod, and may be a round rod, a square rod, a rail, or the like, for carrying the antenna components.

Further, in an embodiment, the antenna axial rod includes a first feed aggregation plate, a second feed aggregation plate, a third feed aggregation plate, and a fourth feed aggregation plate, the first feed aggregation plate, the second feed aggregation plate, the third feed aggregation plate, and the fourth feed aggregation plate surround to form a cavity, and a dielectric strip is disposed in the cavity. The dielectric strip can be made of inorganic ceramic materials or organic dielectric materials, and the cross sectional area of the dielectric strip is equal to that of the cavity, so that the dielectric strip can be conveniently fixed in the cavity, and the working stability is improved. By arranging the dielectric strips in the cavity, the Hansen-Wood's end fire condition can be realized, a strong end fire array is formed, the dielectric constants of all layers of oscillators are different, and the strong end fire array is formed, so that the purpose of improving the gain of the antenna is realized. It is understood that the above dual-polarized reflector, dual-polarized active element and dual-polarized director are connected to the above feeding assembly board and thus fixed to the axial rod of the antenna, for example, the dual-polarized reflector may be connected to four assembly boards, i.e. a first feeding assembly board, a second feeding assembly board, a third feeding assembly board and a fourth feeding assembly board, simultaneously, or only to the first feeding assembly board and the third feeding assembly board, so as to be fixed to the axial rod of the antenna.

In an embodiment, referring to fig. 15, 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 signal is transmitted and received through a signal transmitting channel and a signal receiving channel respectively in the novel WIFI transceiver, the signal transmitting channel includes a first band pass filter 41 and a transmitting channel frequency shifter 31, and the signal receiving channel includes a second band pass filter 42 and a 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.

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, please refer to fig. 15, the novel WIFI 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. 15, the WIFI 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 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 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 exclusive, because high gain antenna device 1 includes two at least dual polarization yagi antenna 11, these dual polarization yagi antenna 11 can all connect same antenna switch device 2, the quantity of dual polarization yagi antenna 11 who comes 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 yagi antenna 11 also can connect different antenna switch device 2 respectively, control different dual polarization yagi antenna 11 respectively by different antenna switch device 2 and can reduce mutual interference, improve novel WIFI 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 yagi antenna 11. In one embodiment, please refer to FIG. 16, utilizing conventional techniquesThe WIFI AP (access point) (for example, 2.4GHz) is moved to a low frequency band (for example, 700MHz) suitable for large coverage by frequency, and the signal is transmitted (received back) through the dual-polarized yagi antenna 11. In one embodiment, referring to fig. 17, the signals are amplified and then transmitted (received back) through the dual polarized yagi antenna 11 by frequency shifting to a lower frequency band (e.g., 700MHz) that is preferably covered by a large margin using a conventional WIFI AP (e.g., 2.4 GHz). A plurality of dual-polarized yagi 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 yagi antennas and low-frequency band transmission are integrated, and the WIFI large-amplitude coverage can be achieved.

Above-mentioned novel WIFI transceiver, double polarization yagi antenna is through designing novel reflector and active oscillator to adopt dual polarization structure, can reduce signal transmission's polarization loss, through setting up the reflecting disc, make the double polarization active oscillator can respond to the cophase current on the reflecting disc, improve the whole gain of antenna, high gain antenna device adopts and adopts double polarization yagi antenna to constitute the antenna array, forms three-dimensional group array structure, makes high gain antenna device can form the perpendicular wave beam, can improve the gain. 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.

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 WIFI transceiver is characterized by comprising a wireless hotspot device, a band-pass filter 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 yagi antennas, and each dual-polarized yagi 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 yagi antenna, and the dual-polarized yagi antenna comprises a reflecting disc, an antenna axial rod, a dual-polarized reflector, a dual-polarized active oscillator and a dual-polarized director;

2. The novel WIFI transceiver of claim 1, wherein dual-polarized yagi antennas of different frequency bands are arranged in the substrate in a crossed manner.

3. The WIFI transceiver of claim 1, wherein the reflector is a circular disk, the radius of the reflector is not more than the length of the dual-polarized reflector, and the distance between the reflector and the dual-polarized director is a quarter wavelength of the dual-polarized active oscillator.

4. The WIFI transceiver of claim 1, wherein the dual polarized yagi antenna further comprises a reflective plate, the reflective plate is disposed on a side of the dual polarized reflector away from the second end.

5. The novel WIFI transceiver of claim 4, wherein the dual-polarized yagi antenna further comprises a radome, the radome is a cavity structure with one open end and the other closed end, and the open end is fixed on the reflector plate.

6. The novel WIFI transceiver of claim 5, wherein the radome surface is coated with left handed material.

7. The WIFI transceiver of claim 1, wherein the dual-polarized active element further comprises a feeding structure disposed on the first active element and a feeding structure disposed on the second active element, each of the feeding structures comprising:

the metal bump is arranged on one functional arm and used for receiving feed;

a coaxial line, one end port of which is connected with the metal bump and is used for transmitting current to the single-polarization active oscillator to drive the antenna to work;

the supporting piece is coated outside the coaxial line and used for isolating the coaxial line from the external environment;

and the metal shell is arranged outside the supporting piece, and meanwhile, one part of the metal shell is embedded into the functional arm without the metal lug.

8. The novel WIFI transceiver of claim 7, characterized by that, the dual polarized yagi antenna further comprises a coaxial feed line, the coaxial feed line connects the feed structure on the first active element and the feed structure on the second active element.

9. The WIFI transceiver of claim 7, characterized in that the dual polarized yagi antenna further comprises a balun feed device, and the balun feed device connects the feed structure on the first active element and the feed structure on the second active element.

10. The novel WIFI transceiver of claim 1, wherein the antenna axial rod comprises a first feed assembly plate, a second feed assembly plate, a third feed assembly plate and a fourth feed assembly plate, the first feed assembly plate, the second feed assembly plate, the third feed assembly plate and the fourth feed assembly plate surround to form a cavity, and a dielectric strip is disposed in the cavity.