Integrated bridge based on corner reflector antenna
Technical field
The utility model relates to integrated bridge, relates in particular to the integrated bridge based on corner reflector antenna that improves loss of signal.
Background technology
Bridge is a kind of application form of radio base station directional transmissions.Radio base station is made of protocol processes system, air interface and power supply usually, and air interface generally comprises parts such as signal transceiver, power amplifier, feeder line, antenna, is the structure of an electrical connection.Usually structurally, signal transceiver and power amplifier and protocol processes system are made on the same mainboard, and signaling interface is connected with antenna by feeder line.The advantage of this structure is more common, can select to insert omnidirectional antenna or directional antenna, and selects the application of the different occasions of antenna adaptation of access different gains.Shortcoming is all to be the physical connection of electric contact, and there are signal attenuation in various degree in feeder line and physics contact, and feeder line is long more, and loss is big more, thereby higher to the quality requirement of feeder line material and physics contact, makes material cost higher; Connecting feeder line in actual applications can not be long.
Directional antenna adopts the signal reflex mode, is a kind of way that reduces loss of signal, also helps signal energy is concentrated on a direction, is fit to the point-to-point and point-to-multipoint transmission of long distance.But directional antenna commonly used now comprises plate aerial and parabolic antenna, be subjected to the interference of multipath reflection effect easily, it is quite disorderly to make signal receive, influence the distance and the quality of wireless transmission, and between antenna and power amplifier, still need feeder line to be connected, still there is the signal loss problem of feeder line and physics contact.Reduce loss of signal, improving coverage is the problem that engineers and technicians usually consider.Application number is 200920127018.2 Chinese utility model patent, a kind of two-band corner reflector antenna is disclosed, this patent was integrated on the secondary metal corner reflector by the sleeve a period of time with two frequency ranges, according to the corner reflection principle, guaranteeing under the constant substantially situation of antenna performance, saved space and cost greatly, made that antenna can be simultaneously two frequency range work.But realize being connected owing to sleeve a period of time in this patent and power splitter still need feeder line, and have the physics contact of a plurality of electrical connections, and produce the decay of signal, influence the signal gain and the efficiency of transmission of whole device.
The utility model content
The purpose of this utility model is to provide the integrated bridge based on corner reflector antenna, improve the overall signal gain and the efficiency of transmission of integrated bridge, increase the signal coverage distance, provide a kind of novel high-efficiency reliable choice of equipment with point-to-multipoint transmission and client reception application for point-to-point.
The purpose of this utility model is achieved through the following technical solutions:
Integrated bridge based on corner reflector antenna includes source antenna, protocol processing unit and wiring board, and fixing also the realization in the circuit board of described active antenna and protocol processing unit electrically connects.
As further improvement, the integrated bridge of the utility model also comprises housing, and wiring board is fixedly installed in the described housing.
As further improvement, the integrated bridge of the utility model also comprises corner reflector antenna, and described corner reflector antenna comprises first reflection substrate, second reflection substrate, and described first reflection substrate and second reflection substrate are connected the dual-side of a connection piece respectively.The place, axis of described connector is provided with a guide groove, and the stiff end of housing is plugged in the described guide groove.
Preferably, described corner reflector antenna is a metal material.
As further improvement, described corner reflector antenna also comprises the first expansion wing plate and the second expansion wing plate, and the described first expansion wing plate is fixedlyed connected with first reflection substrate, and the described second expansion wing plate is fixedlyed connected with second reflection substrate.
As further improvement, the first expansion wing plate and the second expansion wing plate are equipped with a plurality of windage apertures that disappear.
As further improvement, the integrated bridge of the utility model also comprises netting twine and network connectivity interface, and described netting twine is connected with protocol processing unit by described network connectivity interface.Wherein, the network connectivity interface comprises RJ45 netting twine interface, interface connection line plate, biserial joint, cross-over connection netting twine, single-row joint, the two ends of described cross-over connection netting twine are connected with single-row joint with described biserial joint respectively, the biserial joint connects netting twine by interface connection line plate, RJ45 netting twine interface, and single-row joint is connected with protocol processing unit.
Preferably, described cross-over connection netting twine overlaps with the middle separated time of active antenna.
The utility model compared with prior art, the beneficial effect of realization is as follows:
1, greatly improved the overall signal gain and the efficiency of transmission of integrated bridge, increased the signal coverage distance, provide a kind of novel high-efficiency reliable choice of equipment with point-to-multipoint transmission and client reception application for point-to-point.
2, can change the wiring board of different systems and standard easily,, realize device upgrade easily, adapt to the needs of different application environment easily as IEEE802.11 b/g/n standard of WiFi, WAPI etc.
3, netting twine directly is connected to equipment, and the transfer of data antijamming capability is strong, and is radiationless to environment, and netting twine is laid also than being easier to.
4, equipment cost is low, and convenient engineering installation has the market competitiveness.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model based on the integrated bridge of corner reflector antenna;
Accompanying drawing 2 is the relative position schematic diagram of the utility model each several part and housing;
Accompanying drawing 3 is the general assembly schematic diagram of the utility model based on the integrated bridge of corner reflector antenna.
Embodiment
Below in conjunction with accompanying drawing concrete enforcement of the utility model is further described:
Accompanying
drawing 1 is the structural representation of the utility model based on the integrated bridge of corner reflector antenna.As shown in Figure 1, integrated bridge includes
protocol processing unit 1,
active antenna 2,
corner reflector antenna 3 and network connectivity interface 4,
protocol processing unit 1 is a wireless access dot system, is responsible for work such as procotol processing, signal transmitting and receiving and signal power amplification.
Protocol processing unit 1 is made on the same wiring board with
active antenna 2, be connected by Copper Foil cabling on the wiring board between
active antenna 2 and the
protocol processing unit 1, on the service position, with respect to
corner reflector antenna 3,
protocol processing unit 1 is in outer position, and
active antenna 2 is in inner position.
Corner reflector antenna 3 comprises
first reflection substrate 31 and
second reflection substrate 32, and described
first reflection substrate 31 and
second reflection substrate 32 are connected the dual-side of
connector 37,37 one-tenth of connectors respectively
Shape, thereby make
first reflection substrate 31 and
second reflection substrate 32 form certain included angle a, and to establish
connector 37 be S to the air line distance of
active antenna 2, principle based on corner reflector antenna, position apart from
connector 37 on
corner reflector antenna 3 symmetrical axis is the S place, places an
active antenna 2 with
connector 37 vertical direction, suitably choose angle a and, just can obtain directivity and radiation effect preferably apart from S.For 2.4GHz WiFi and the integrated bridge of WAPI, consider that based on cost performance the selection aluminium is a reflection plate material, in addition, selecting the angle a of
corner reflector antenna 3 is 105 °, the position of center line of
active antenna 2 is 54 millimeters to
connector 37 apart from S.When the wiring board of changing different systems and standard, only need to reappear and adjust angle a and apart from S, convenient and swift realization device upgrade adapts to the needs of different application environment easily.Netting twine 7 directly is connected to
protocol processing unit 1 by network connectivity interface 4, and the transfer of data antijamming capability is strong, and is radiationless to environment, and netting twine is laid also than being easier to.
Accompanying drawing 2 is the relative position schematic diagram of the utility model each several part and housing.As shown in Figure 2, active antenna 2 is made in the mainboard that constitutes main frame on the same wiring board with protocol processing unit 1, the power amplifier output of protocol processing unit 1 directly links to each other with active antenna 2, owing to do not have unnecessary physics contact and feeder line, so this link section transmission signals decay is few; Network connectivity interface 4 is netting twine interfaces of a band line stretcher, and wherein cross-line netting twine 44 directions and side signal transmission effectively have access to spider lines to protocol processing unit 1 to parallel by single-row joint 45; The signal that corner reflector antenna 3 sends to external reflectance active antenna 2, or to active antenna 2 reflections and gathering extraneous signal.Because signal is few by the suffered decay of space reflection approach, so effectiveness greatly improves.The wiring board of fixed protocol processing unit 1 and active antenna 2 and network connectivity interface 4 are connected together, add plastic casing 6 and constitute main frame, the stiff end of main frame inserts in the fixedly guide groove 36 of corner reflector antenna 3, constitutes integrated bridge equipment with corner reflector antenna 3.Position limiting structure on the wiring board guarantees that the active antenna 2 on the wiring board is in the proper signal source position, guarantees that also the direction of active antenna 2 is vertical with the direction of connector 37 after making main frame and corner reflector antenna 3 constitute one.Network connectivity interface 4 comprises RJ45 netting twine interface 41, interface connection line plate 42, biserial joint 43, cross-over connection netting twine 44, single-row joint 45, netting twine 7 is connected on the RJ45 netting twine interface 41, be connected with cross-over connection netting twine 44 by interface connection line plate 42, biserial joint 43 then, the cross-over connection netting twine 44 that connects overlaps with the middle separated time of active antenna 2, to reduce the interference to wire signal of active antenna 2 signals and reflected signal; The reference column of housing 6 cooperates the location that forms wiring board with location hole 11 on the wiring board; Host shell 6 props up confined planes 62 and puts in place, thereby define source antenna 2 residing source location when fixedly guide groove 36 inserts along the main frame of corner reflector antenna 3 symmetrical centre axles; Near the RJ45 netting twine interface 41 seal grooves 61 are used to connect the caulking gum of packing into behind the netting twine 7, are used for outdoor water-proof; Reflection board slot 63 on the housing 6 can be equipped with the little reflecting plate of source antenna when needed, with further increase antenna gain.
Accompanying drawing 3 is the general assembly schematic diagram of the utility model based on the integrated bridge of corner reflector antenna.As shown in Figure 3, corner reflector antenna 3 comprises first reflection substrate 31 and second reflection substrate 32, first reflection substrate 31 and the first expansion wing plate 33 are fixedlyed connected by screw, second reflection substrate 32 and the second expansion wing plate 34 are fixedlyed connected by screw, first reflection substrate 31 and second reflection substrate 32 are fixed-type by preceding holding screw and back fastening bolt, the position, angle that fixes back first reflection substrate 31 and second reflection substrate 32 is that the centre of connector 37 forms a square fixedly guide groove 36 toward rear side, so that pack main frame into; Fixedly connected between reflection substrate 31 and the expansion wing plate 32 by screw 34, the first expansion wing plate 33 and the second expansion wing plate 34 have been equipped with a plurality of windage apertures 35 that disappear, stressed when dissolving equipment by wind, because view relation, the windage aperture 35 that disappears on the second expansion wing plate 34 is not shown.Mounting bracket 5 is fastened on the extended end on edge, connector 37 back by screw.
For a person skilled in the art, can make other various corresponding changes and distortion, and these all changes and distortion should belong within the protection range of the utility model claim all according to technical scheme described above and design.