CN211789470U - Reinforced WIFI (wireless fidelity) transceiver - Google Patents

Abstract

The utility model relates to a strenghthened type 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, high gain antenna device includes the base plate and sets up the dual polarization yagi antenna more than two on the base plate, dual polarization yagi antenna is through designing novel reflector and active oscillator, and adopt dual polarization structure, can reduce signal transmission's polarization loss, the F-B overburden can constitute the F-B resonant cavity with the plane that the first end of antenna axial rod was located, make the electromagnetic wave of antenna radiation out superpose at the resonant cavity cophase, 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

Reinforced WIFI (wireless fidelity) transceiver

Technical Field

The utility model relates to a wireless technology field especially relates to a strenghthened type 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 an enhanced WIFI transceiver device for solving the problem of low reliability of the conventional WIFI signal transmission device.

A reinforced 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 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 an F-B covering layer, 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 F-B covering layer 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 F-B covering layer 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 F-B covering layer 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 strenghthened type WIFI transceiver, double polarization yagi antenna are through designing novel reflector and active oscillator to adopt dual polarization structure, can reduce signal transmission's polarization loss, the F-B overburden can constitute the F-B resonant cavity with the plane that the first end of antenna axial pole was located, makes the electromagnetic wave of antenna radiation out superpose at the resonant cavity cophase, thereby has improved double polarization yagi antenna's radiation gain. 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 an enhanced WIFI transceiver in an 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 an enhanced WIFI transceiver in another embodiment;

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

fig. 17 is a schematic structural diagram of an enhanced 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 2, which provide a reinforced WIFI 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 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 of the enhanced WIFI transceiver to the wired local area network and from the wired local area network to the enhanced WIFI transceiver, and wireless workstations within the access point coverage area of wireless hotspot device 5 can communicate with each other through the wireless hotspot device. 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, 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, the signal after the filtering is sent to wireless hotspot device 5, make the user can realize the visit to strenghthened type 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 F-B blanket 400, dual polarized director 110, dual polarized active element 120, dual polarized reflector 130 and antenna axial rod 140. The dual-polarized director 110, the dual-polarized active vibrator 120, the dual-polarized reflector 130 and the F-B blanket 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 F-B cover layer 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 F-B cover layer 400 is perpendicular to the antenna axial rod 140.

Wherein, the F-B covering layer 400 may be a rectangular patch or a circular patch or a cross-shaped patch, and is used to form a reflection surface 1, specifically, taking the dual-polarized yagi antenna as an example, where the first end of the antenna axial rod 140 is used as a near-ground end, the second end of the antenna axial rod 140 is used as a far-ground end, at this time, the antenna floor (for example, the ground may be used as an antenna floor) is a reflection surface 2, the F-B covering layer 400 forms the reflection surface 1, an F-B resonant cavity (for example, a fabry-perot resonant cavity) is formed between the reflection surface 1 and the reflection surface 2, other components of the whole dual-polarized yagi antenna are located between the reflection surface 1 and the reflection surface 2 (for example, located in the fabry-perot resonant cavity), electromagnetic waves radiated by the antenna elements (for example, the active element 120) in the dual-polarized yagi antenna are superposed in phase in the F-, thereby improving the radiation gain of the dual-polarized yagi antenna.

It should be noted that the type of the F-B cover layer 400 is not exclusive, for example, the F-B cover layer 400 may adopt a graded dielectric constant cover layer, and the use of different dielectric constants at different positions of the cover layer can make the phase distribution curve more uniform, thereby improving the quality of the electromagnetic wave radiated by the dual-polarized yagi antenna. The F-B cover layer 400 is not only disposed, but may be fixedly disposed at the second end of the antenna axial rod 140 during shipment or installation to keep the position fixed, so that the F-B cover layer 400 and the antenna axial rod 140 are structurally integrated, thereby avoiding interference factors caused during installation and improving the working performance. The antenna can also be arranged at the second end of the antenna axial rod 140 through a connecting piece, the type of the connecting piece is not unique, the connecting piece can be a foam connecting piece or a connecting column, and the like, furthermore, the connecting piece can also be detachably fixed at the second end of the antenna axial rod 140, the F-B covering layer 400 is installed as required without being detached, the use is convenient, and when the F-B covering layer 400 is damaged and cannot be used, only the F-B covering layer 400 can be replaced, the integral replacement of the dual-polarized yagi antenna is avoided, and the maintenance cost is saved.

According to the dual-polarized yagi antenna, the F-B covering layer is arranged at the second end of the axial rod of the antenna, and the F-B covering layer and the plane where the first end of the axial rod of the antenna is located can form an F-B resonant cavity, so that electromagnetic waves radiated by the antenna are superposed in the resonant cavity in the same phase, and the radiation gain of the dual-polarized yagi antenna is improved.

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 given in subsequent fig. 7-12.

In one embodiment, referring to fig. 5, the number of F-B overlays 400 is two or more (only one F-B overlay 400 is shown in fig. 5), each F-B overlay 400 being stacked and spaced apart from dual-polarized director 110 and away from the first end of antenna axial rod 140. Taking the first end of the antenna axial rod 140 as the ground-proximal end and the second end of the antenna axial rod 140 as the ground-distal end, for example, stacking the F-B cover layers 400 at the second end of the antenna axial rod 140 may enable the electromagnetic waves radiated by the dual-polarized active oscillator 120 to be more superimposed in the same phase when the electromagnetic waves are propagated in a fabry-perot resonant cavity formed by the F-B cover layers 400 and a plane (e.g., the ground) where the first end of the antenna axial rod 140 is located, thereby further improving the radiation gain of the dual-polarized yagi antenna.

In one embodiment, as shown in FIG. 5, the F-B cover layer includes a substrate and a patch disposed on a side of the substrate proximate the second end of the antenna axial rod 140. The substrate is a carrier for carrying the patches, the position of the patches can be fixed, the normal operation of the patches is guaranteed, the patches are arranged on the substrate and form a fabry-perot resonant cavity with a plane (for example, the ground) where the first end of the antenna axial rod 140 is located, the number of the patches is not unique, generally, the larger the number of the patches is, the smaller the size of the patches is, and the patches can be specifically selected according to actual requirements. Specifically, further, in combination with the previous embodiment, when the number of the F-B cover layers 400 is two or more, the F-B cover layers 400 are stacked, the patches on the F-B cover layers 400 are respectively disposed on the side of the substrate close to the antenna axial rod 140, and the arrangement directions of the F-B cover layers 400 are the same, which is beneficial to further improving the gain.

Further, in one embodiment, the patch is a rectangular patch or a circular patch. Rectangular patches or circular patches can be regularly arranged on the substrate, so that the positions, working parameters and the like of the patches can be adjusted more conveniently, and the use convenience of the dual-polarized yagi antenna is improved.

In one embodiment, the patch is provided with a cross-shaped slot on a side close to the second end of the antenna axial rod. The cross-shaped groove plays a role in meander, equivalent inductance is increased, and resonant frequency is obviously reduced, so that the size of the F-B covering layer can be reduced on the premise of ensuring working performance, and stronger radiation generated by the cross-shaped groove is equivalent to increase larger loss resistance, thereby greatly improving bandwidth.

In one embodiment, as shown in fig. 5, the dual polarized yagi antenna further comprises a reflective plate 300, the reflective plate 300 is disposed at the first end of the antenna axial rod 140, and the dual polarized reflector 130 is disposed at the reflective 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.

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, dual-polarized director 110, dual-polarized active element 120, and dual-polarized reflector 130 are relatively independent and are sequentially disposed on an antenna axial rod (not shown), it should be noted that in the dual-polarized yagi antenna, the number of dual-polarized directors 110 may be plural, and the lengths thereof are different, the length of dual-polarized director 110 is gradually shortened from end a to end B, for example, four dual-polarized directors 110 are shown in fig. 7 and 8, and the length of dual-polarized reflector 130 is the longest, dual-polarized director 110 is slightly shorter than dual-polarized reflector 130, and the length of dual-polarized active element 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 both the first active element and the second active element of the dual-polarized active element 130, and includes:

a metal bump 201 as a feeding point, disposed on one of the functional arms 123a of the single-polarized active oscillator, for receiving feeding;

a port at one end of the coaxial line 202 is connected with the metal bump 201, and is used for transmitting current to the active oscillator to drive the antenna to work;

a support member 203, which is wrapped outside the coaxial line 202, and is used for isolating the coaxial line 202 from the external environment, and in one embodiment, the support member is made of teflon, which further plays an insulating role;

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 without the metal bump 201, so as to ground the metal shell, so that the coaxial line 202 and the metal shell 204 form a potential difference.

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 signals in the enhanced WIFI transceiver are transmitted and received through a signal transmitting channel and a signal receiving channel, respectively, 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 this. 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. 15, the enhanced 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-enhanced 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 72 is connected to the antenna switching 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 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 yagi antenna 11 also can connect different antenna switch device 2 respectively, different dual polarization yagi antenna 11 of control respectively by different antenna switch device 2 can reduce mutual interference, improve strenghthened type 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 of the present invention,referring to fig. 16, with a conventional WIFI AP (access point) (e.g., 2.4GHz), the frequency is shifted to a low frequency band (e.g., 700MHz) suitable for large-scale coverage, 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 strenghthened type WIFI transceiver, double polarization yagi antenna are through designing novel reflector and active oscillator to adopt dual polarization structure, can reduce signal transmission's polarization loss, the F-B overburden can constitute the F-B resonant cavity with the plane that the first end of antenna axial pole was located, makes the electromagnetic wave of antenna radiation out superpose at the resonant cavity cophase, thereby has improved double polarization yagi antenna's radiation gain. 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.

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 (10)

1. A reinforced 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 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 an F-B covering layer, 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 F-B covering layer 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 F-B covering layer 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 F-B covering layer 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.

2. The enhanced WIFI transceiver of claim 1, wherein dual polarized yagi antennas of different frequency bands are crosswise disposed on the substrate.

3. The enhanced WIFI transceiver of claim 1, characterized in that the number of said F-B overlays is two or more, and each of said F-B overlays is stacked and then spaced from said dual polarization director and away from said first end of said antenna axial rod.

4. The enhanced WIFI transceiver of claim 1, wherein said F-B overlay includes a substrate and a patch, said patch disposed on a side of said substrate proximate to said second end of said antenna axial rod.

5. The enhanced WIFI transceiver of claim 4, wherein the patch is a rectangular patch or a circular patch, and a cross-shaped slot is formed in one side of the patch, which is close to the second end of the antenna axial rod.

6. The enhanced WIFI transceiver of claim 1, wherein said dual polarized yagi antenna further comprises a reflector plate, said reflector plate is disposed at a first end of said antenna axial rod, and said dual polarized reflector is disposed at said reflector plate.

7. The WIFI-enhanced transceiver of claim 1, wherein said dual-polarized active element further comprises a feeding structure disposed on said first active element and a feeding structure disposed on said second active element, each of said 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 enhanced WIFI transceiver of claim 7, wherein said dual polarized yagi antenna further comprises a coaxial feed line, said coaxial feed line connecting said feed structure on said first active element and said feed structure on said second active element.

9. The WIFI-enhanced transceiver of claim 7, wherein the dual-polarized yagi antenna further comprises a balun feed, and the balun feed connects the feed structure on the first active element and the feed structure on the second active element.

10. The enhanced WIFI transceiver of claim 1, wherein the dual-polarized yagi antenna further includes a feed aggregation plate and a dielectric strip, the feed aggregation plate wraps the antenna axial rod, and the dielectric strip is disposed in the feed aggregation plate.

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