CN105322281A - Radio communication oscillator and short vehicle-mounted antenna - Google Patents
Radio communication oscillator and short vehicle-mounted antenna Download PDFInfo
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- CN105322281A CN105322281A CN201410366107.8A CN201410366107A CN105322281A CN 105322281 A CN105322281 A CN 105322281A CN 201410366107 A CN201410366107 A CN 201410366107A CN 105322281 A CN105322281 A CN 105322281A
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Abstract
The invention discloses a radio communication oscillator and a short vehicle-mounted antenna. The radio communication oscillator comprises a sleeve loading structure and a helical structure which are connected to each other. The sleeve loading structure comprises an inner sleeve, an outer sleeve, and a loading sheet, wherein one end of the inner sleeve is connected with the surface of the loading sheet, and the other end of the inner sleeve is fixed on a mounting plate; and the outer sleeve is fixed on the mounting plate and is in a common-ground state with the mounting plate; and the outer sleeve sleeves one end, far from the loading sheet, of the inner sleeve, and is not contacted with the inner sleeve. Through the above technical scheme, the radio communication oscillator is wideband due to the sleeve loading structure and the helical structure, and the broadband can cover all frequency bands needed by 4G, 3G and 2G communication. As a result, the radio communication oscillator is suitable for achieving 4G communication and is downwardly compatible with the 3G and 2G communication simultaneously.
Description
Technical field
The present invention relates to vehicle electric field, particularly, relate to a kind of radio communication oscillator and dwarf forms car antenna.
Background technology
Along with the development of auto industry and the universal of automobile, people increase day by day to car comfort, fail safe, convenience and intelligentized requirement.In order to meet the instructions for use of people to vehicle, manufacturer is provided with multiple mobile unit (such as, AM/FM broadcast receiver, GPS navigation equipment, in-car TV etc.) at vehicle interior, and arranges reception antenna at outside vehicle.
Early stage outside vehicle reception antenna has rod-type, Telescopic shaft type etc., and these antenna is easily subject to external force impact and distortion even damages, and affects again the attractive in appearance of vehicle.For this reason, in prior art, provide a kind of shark fin type antenna, attractive in appearance with the function and vehicle of taking into account antenna, and the streamline profile of shark fin type antenna is except attractive in appearance, to also reduce when vehicle travels windage to the active force of entire physical structure.
But, along with the development of mobile communication technology, the function of in-vehicle wireless communications device to car antenna is had higher requirement.Existing shark fin type antenna limits by own vol, cannot arrange the oscillator receiving multiple unlike signal (such as, gps signal, 3G signal etc.) in its limited inner space.Even if setting also can cause the reception of extreme difference, Consumer's Experience extreme difference reluctantly in order to realize receiving.
For the problems referred to above, in prior art, there is no good solution.
Summary of the invention
The object of this invention is to provide a kind of radio communication oscillator and dwarf forms car antenna, this radio communication oscillator has broadband properties, and the wireless communication signals be suitable for comprising 2G, 3G and 4G carries out transmitting/receiving; This dwarf forms car antenna can receive FM signal, satellite positioning signal and wireless network signal, and has good Signal reception effect.
To achieve these goals, the invention provides a kind of radio communication oscillator, comprise the sleeve loading structure and helical structure that are connected, wherein, described sleeve loading structure comprises: inner sleeve, outer sleeve and with slide glass, wherein, add slide surface described in one end connection of described inner sleeve, the other end of described inner sleeve is fixed on mounting base; And described outer sleeve be fixed on described mounting base and with described mounting base altogether, this outer sleeve is placed on described inner sleeve away from described one end with slide glass and does not contact with described inner sleeve.
Further, described helical structure has spire and stem; And described helical structure is connected with described sleeve loading structure by described stem.
Further, described helical structure has spire and stem; Described have peristome with on slide glass; And described stem is suitable for extending to described inner sleeve inside via described peristome.
Further, described outer sleeve is coaxial with described inner sleeve; And the length of described inner sleeve is greater than the length of described outer sleeve; And the circumferential end surfaces of described inner sleeve and the described link with slide glass has the multiple projections be uniformly distributed along the circumference; And described in have in the middle part of slide glass be suitable for described multiple projection insert multiple groove portions.
Further, with slide glass, there is multiple portion of windowing described in.
According to another aspect of the present invention, additionally provide a kind of dwarf forms car antenna, comprise: the shell matched and mounting base and the following assembly be arranged on described mounting base: satellite antenna, is configured to export the satellite-signal of reception in car mobile satellite location equipment; Radio oscillator, is configured to receive radio signals; And the above-mentioned radio communication oscillator provided of the present invention, this radio communication oscillator is configured at least one in the following wireless communication signals of wireless transmission/reception: 4G, 3G and 2G, and this radio communication oscillator is connected with Wireless Telecom Equipment in car by cable.
Further, dwarf forms car antenna also comprises: amplifier circuit module, and the radio signal be configured to described radio oscillator receives exports radio equipment in car to; And described radio oscillator is PCB antenna, this PCB antenna connects described amplifier circuit module by feeder line.
Further, described radio oscillator and described radio communication oscillator are configured to the upper space not covering described satellite antenna.
Further, this dwarf forms car antenna is suitable for being arranged on roof; The first threaded portion being adapted to pass through roof installing hole is configured with bottom wherein said mounting base; And described dwarf forms car antenna also comprises the second threaded portion detachably coordinated with described first threaded portion, the diameter of this second threaded portion is greater than described roof installing hole with from dwarf forms car antenna described in car internal fixtion.
Further, the profile of this dwarf forms car antenna is shark fins shape.
Pass through technique scheme, the radio communication oscillator provided is because having sleeve loading structure and helical structure and having broadband properties, wideband can cover 4G, 3G communicate with 2G needed for all frequency bands, therefore go for realizing 4G communication, simultaneously backward compatible 3G and 2G communication; The car antenna provided; there is FM reception, satellite fix and wireless network concatenation ability; adopt the radio communication oscillator of sleeve antenna loading structure; achieve high-gain and broadband; plurality of wireless networks standard can be applicable to; multiple antenna oscillator and receiver module are arranged in the space that shell and mounting base surround, and make each assembly in dwarf forms car antenna obtain good protection, still can ensure the normal use of antenna in the extreme circumstances.
Other features and advantages of the present invention are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Fig. 1 is the radio communication oscillator structure schematic diagram according to one embodiment of the present invention;
Fig. 2 A-Fig. 2 D is according to each part structural representation of the radio communication oscillator of embodiment of the present invention;
Fig. 3 is the signal testing figure according to radio communication oscillator provided by the invention;
Fig. 4 is the dwarf forms car antenna composition structural representation according to one embodiment of the present invention;
Fig. 5 is that dwarf forms car antenna forms structural representation according to the preferred embodiment of the present invention; And
Fig. 6 is the dwarf forms car antenna appearance schematic diagram according to embodiment of the present invention.
Description of reference numerals
1 shell 2 mounting base
3 satellite antenna 4 radio oscillators
5 amplifier circuit module 6 radio communication oscillators
61 inner sleeve 62 outer sleeves
63 with slide glass 64 helical structure
7 first threaded portion, threaded portions 8 second
9 rubber cushion 10 waterproof aprons
11 base plate fasteners.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
Fig. 1 is the radio communication oscillator structure schematic diagram according to one embodiment of the present invention.As shown in Figure 1, a kind of radio communication oscillator that embodiment of the present invention provides, the sleeve loading structure (or being called sleeve antenna) and helical structure (or being called helical antenna) 64 that are connected can be comprised, wherein, described sleeve loading structure can comprise: inner sleeve 61, outer sleeve 62 and with slide glass 63, wherein, with slide glass 63 surface described in one end connection of described inner sleeve 61, the other end of described inner sleeve 61 is fixed on mounting base (not shown in figure 1), this end can as the input/output terminal of signal to this radio communication oscillator, and Wireless Telecom Equipment can be connected from this end, and described outer sleeve 62 can be fixed on described mounting base and with mounting base altogether, this outer sleeve 62 be placed on inner sleeve 61 away from slide glass 63 one end and do not contact with inner sleeve 61.
By technique scheme, the radio communication oscillator provided has broadband properties because having sleeve loading structure and helical structure, and wherein, sleeve loading structure is applicable to 3G with 4G and communicates, and helical structure is applicable to 2G communication.By said structure, the wideband of radio communication oscillator can cover 4G, 3G communicate with 2G needed for all frequency bands, therefore go for realizing 4G communication, simultaneously backward compatible 3G and 2G communication.
Continue as shown in Figure 1, in embodiments, outer sleeve 62 can be coaxial with inner sleeve 61, forms the cylinder monopole antenna structure with axial symmetry.In a preferred embodiment, the length of inner sleeve 61 is greater than the length of outer sleeve 62, to meet electromagnetic wave propagation characteristic outside emittance from the upper end open place of outer sleeve 62.
By above-mentioned setting, the equivalent length of antenna can be increased by tube-in-tube structure, thus effectively shorten the length of radio communication oscillator, can be placed in antenna casing.And utilize with slide glass 63, improve the standing-wave ratio characteristic of antenna in working band under the prerequisite of gain can not be reduced, make it be suitable for being applied to 3G with 4G and communicate.Helical structure 64 can be suitable for the signal receiving 900MHz frequency, and radio communication oscillator can be made to have wider working band.The radio communication oscillator that embodiment of the present invention provides, by inner sleeve 61, outer sleeve 62, combination configuration with slide glass 63 and helical structure 64, achieves high-gain and broadband, can be applicable to 4G communication backward compatible 3G and GPRS simultaneously.Below will be described in detail to this.
The antenna of tube-in-tube structure utilizes antenna slenderness ratio principle, can fall low-impedance rate of change, improves the beamwidth of antenna.Specifically, according to the slenderness ratio principle of antenna, the severe degree that the input impedance of element antenna changes with electrical length depends primarily on the characteristic impedance of antenna.Characteristic impedance is larger, and input impedance is fiercer with the change of electrical length, and the impedance bandwidth of antenna is narrower; Otherwise characteristic impedance is less, the impedance bandwidth of antenna is wider.Thick oscillator has lower characteristic impedance, and asymmetric version can play the staggered tuning effect in similar circuit, thus broadening impedance bandwidth effectively.An overstriking oscillator also realizes the straightforward procedure of asymmetric feed, is outside antenna radiator, add a coaxial with it metal sleeve, namely forms sleeve antenna.Intuitively, metal sleeve is equivalent to a thick oscillator, and its special feeding classification (coaxial feeding), makes the impedance operator of the antenna of this structure be better than common element antenna significantly in addition.The relative bandwidth of general sleeve antenna at least can reach a more than octave.
In coaxial feeding mode, the inner wire of coaxial line connects the inner sleeve 61 as radiant body, and coaxial outer conductor connects outer sleeve 62, its outer wall electric current and inner wire electric current equidirectional, be also equivalent to the part constituting radiant body, and double as sleeve.The electric current of inner sleeve 61 and the wall currents of outer sleeve 62 anti-phase, serve the effect of transmission line, the outer wall electric current of outer sleeve 62 and the electric current of inner sleeve 61 equidirectional, also constitute a part for radiant body.The mechanical strength not only increasing antenna of this structure, and due to oscillator overstriking, significantly improve the impedance operator of antenna, the effective broadening working band of antenna.
And although the antenna of tube-in-tube structure has wide working band, but there will be input impedance reduction when frequency increases to a certain degree, the problem that voltage standing wave ratio increases, be difficult to meet instructions for use.Therefore, the present invention increases with slide glass 63 on the basis of tube-in-tube structure, reduces voltage standing wave ratio can improve the standing-wave ratio characteristic of antenna in working band in large frequency range under the prerequisite not reducing gain.Helical structure 64 (or being called helical antenna) can have spire (such as, spring shape) and stem in embodiments of the present invention.This helical structure 64 can be connected with sleeve loading structure by stem.Such as, electrical connection is realized by welding or clamping.In one embodiment, peristome can be had with on slide glass 63.It is inner that the stem of helical structure 64 can be suitable for extending to inner sleeve 61 via this peristome.Can by stem and described peristome and/or inner sleeve 61 inner affixed.Therefore, the radio communication oscillator provided according to embodiment of the present invention has higher mechanical strength and may be used for 4G with 3G with wider working band and communicate and compatible 2G (GSM) communication, and can obtain good signal quality.
Fig. 3 is the signal testing figure according to radio communication oscillator provided by the invention.As shown in Figure 3, can find out and utilize radio communication oscillator provided by the invention, all can obtain stable signal quality at the pole broad frequency range of 700MHz-3.7GHz.Above-mentioned frequency band covers the frequency band that communication uses from 2G to 4G completely, and therefore radio communication oscillator provided by the invention can meet the instructions for use of communication from 2G to 4G completely, and can provide good signal quality.
Be described in detail below in conjunction with the composition structure of accompanying drawing to the radio communication oscillator that embodiment of the present invention provides.
Fig. 2 A-Fig. 2 D is according to each part structural representation of the radio communication oscillator of embodiment of the present invention.Wherein, Fig. 2 A shows the structural representation with slide glass 63 of the radio communication oscillator according to embodiment of the present invention; Fig. 2 B shows the structural representation of the inner sleeve 61 of the radio communication oscillator according to embodiment of the present invention; Fig. 2 C shows the structural representation of the outer sleeve 62 of the radio communication oscillator according to embodiment of the present invention.And Fig. 2 D shows the structural representation of the helical structure 64 of the radio communication oscillator according to embodiment of the present invention.
As shown in Figure 2 A and 2 B, in embodiments, inner sleeve 61 can have with the circumferential end surfaces with the link (in Fig. 2 B inner sleeve 61 top) of slide glass 63 the multiple projections (such as, 3 projections, are circumferentially being separated by 120 ° for every two) be uniformly distributed along the circumference; And as shown in Figure 2 A, with in the middle part of slide glass 63 (such as, geometric center position) the multiple protruding multiple groove portions (groove portion is similarly 3 in the present embodiment, and adjacent two groove portions are circumferentially being separated by 120 °) inserted being suitable for inner sleeve 61 end can be had.
In one embodiment, (such as, centered by multiple groove portion symmetrical) multiple portion of windowing with slide glass 63 can have.In the execution mode shown in Fig. 2 A, show two portions of windowing, be symmetricly set on both sides, 3 groove portions.In various embodiments, the quantity in portion of windowing can be more than two, such as 4.The shape in portion of windowing in a preferred embodiment can for rectangular window.
In embodiments, can consider for being convenient to the stability after installing and installing, away from the circumferential end surfaces of described one end with slide glass 63 (in Fig. 2 B inner sleeve 61 bottom), there are the multiple projections be uniformly distributed along the circumference at inner sleeve 61, in this configuration, the position on the mounting base installing inner sleeve 61 can have the corresponding groove portion that arrange protruding with these.Outer sleeve 62 lower end ground connection as that shown in fig. 2 c, its upper end is free end.For same consideration, the circumferential end surfaces of outer sleeve 62 earth terminal can have multiple projection of being uniformly distributed along the circumference so that install and improve stability.The free end of outer sleeve can be smooth circumferential end surfaces.
It should be noted that, although shown in Fig. 2 A be rectangle with slide glass 63, the shape shown in Fig. 2 A only for purpose of explanation, does not limit the shape with slide glass, such as, also can be circular piece with slide glass.In embodiments, radio communication oscillator can be installed on mounting base.Also the predeterminated position in such as amplifier circuit module can be arranged in various embodiments, so that the assembling of integrated antenna, as long as each assembly or partly mutually noiseless in antenna.
In a preferred embodiment, the size with slide glass 63 can be 28mm × 28mm, and thickness is 0.5mm; Size with rectangular window on slide glass 63 can be 17mm × 3mm, and two rectangular windows can interval 11mm; The internal diameter of inner sleeve 61 can be Φ 4.4mm, and external diameter can be Φ 5mm, and its total length can be 14mm, and wherein upper lobes can be 1mm, and lower lobes can be 2mm, and the chord length of each projection can be 2mm; The internal diameter of outer sleeve 62 can be Φ 9.6mm, and external diameter can be Φ 10mm, and its total length can be 9mm, and its underpart projection can be 2mm, and the chord length of each projection can be 3mm.The diameter of the spire of helical structure 64 can be greater than the external diameter of outer sleeve 62, and the number of turns of its spiral can be such as 3 circles.
In embodiments, inner sleeve 61, outer sleeve 62, can be all copper with the material of slide glass 63 and helical structure 64.And can through electroplating processes with corrosion-resistant.Such as, can at plating nickel on surface, to form the coating of 5-8 μm.
Another aspect of the present invention, provides a kind of dwarf forms car antenna.Fig. 4 is the dwarf forms car antenna composition structural representation according to one embodiment of the present invention.As shown in Figure 4, a kind of dwarf forms car antenna that embodiment of the present invention provides, can comprise: the shell 1 matched and mounting base 2 and the following assembly be arranged on described mounting base 2: satellite antenna 3, is configured to export the satellite-signal of reception in car mobile satellite location equipment; Radio oscillator 4, is configured to receive radio signals; And radio communication oscillator 6, be configured at least one in the following wireless communication signals of wireless transmission/reception: 4G, 3G and 2G, this radio communication oscillator 6 has sleeve loading structure and helical structure, and can be connected with Wireless Telecom Equipment in car by cable.
Pass through technique scheme; the car antenna provided; there is FM reception, satellite fix and wireless network concatenation ability; adopt the radio communication oscillator of sleeve antenna loading structure; achieve high-gain and broadband; plurality of wireless networks standard (4G, 3G and 2G) can be applicable to; multiple antenna oscillator and receiver module are arranged in the space that shell and mounting base surround; make each assembly in dwarf forms car antenna obtain good protection, still can ensure the normal use of antenna in the extreme circumstances.
In embodiments, the bottom of described mounting base 2 can be configured to be suitable for being arranged on vehicle roof, such as, can configure the bottom shape of mounting base 2 and structure to adapt with standard antenna (such as, shark fin type antenna) mounting interface.
In embodiments, satellite antenna 3 can for being suitable for the antenna receiving GPS and/or BDS (dipper system) satellite-signal.This satellite antenna 3 can be made up of dielectric antenna and low noise amplifier (LNA).The reception to GPS/BDS signal can be completed by dielectric antenna.Mobile satellite location equipment in car is exported to after the satellite-signal that LNA can be configured to described dielectric antenna to receive amplifies.In embodiments, LNA can be made up of 2 pole amplifying circuits, can adopt following combination of devices: field effect transistor (Rui Sa) NE3509M04+ radio-frequency module (grace intelligence Pu) BGA2748 or BGA2712 and uPC2712.In another in execution mode, another kind of scheme is that LNA is made up of 3 pole amplifying circuits, such as, can adopt following combination of devices: field effect transistor NE3509M04+ triode BFG425+ triode BFG425.In various embodiments, satellite antenna 3 can be the antenna integrated amplifier of GPS/BDS, realizes the compatibility to GPS and BDS equipment, and adopts single module can make full use of the limited volumetric spaces of antenna.
In embodiments, dwarf forms car antenna according to the present invention can also comprise amplifier circuit module 5, and the radio signal be configured to described radio oscillator 4 receives exports radio equipment in car to.Radio oscillator 4 can be AM/FM pick-up dipole.Such as, radio oscillator can be PCB antenna, such as, is manufactured by metal etch.The radio signal received can be sent to amplifier circuit module 5 by feeder line (not shown) by PCB antenna, and signal can amplify and deliver to vehicle-mounted radio equipment to play by the latter.Amplifier circuit module 5 can be printed circuit board (PCB).
In embodiments, the radio communication oscillator 6 with sleeve loading structure can connect with Wireless Telecom Equipment in car (such as, 4G equipment, 3G equipment etc.).In embodiments of the present invention, the radio communication oscillator 6 provided has broadband properties, wideband can cover 4G, 3G communicate with 2G needed for all frequency bands, therefore be applicable to realize 4G communication, backward compatible 3G (such as simultaneously, WCDMA standard) communicate and 2G (such as, GSM) communication.The sleeve loading structure provided in execution mode can make radio communication oscillator 6 realize high-gain and broadband with little volume
Integrated level is high can to realize several functions (such as, GPS/BDS (dipper system) navigation, 4G/3G/GPRS communication and radio reception) according to the parts used in the dwarf forms car antenna of embodiment of the present invention, and compact.Therefore, the position between each parts can be arranged according to the flexible shapes of car antenna, arranges and only needs to consider that arranging of particular elements requires.Such as, for the setting of the antenna integrated amplifier 3 (or satellite antenna module) of GPS/BDS, require that it is horizontally disposed with, and block without metal within the scope of 5 °-10 °, top.In a preferred embodiment, can antenna integrated for GPS/BDS amplifier 3 can be installed on mounting base 2 by support (not shown), support can have the angle pre-set, to offset the level angle of roof, GPS/BDS antenna integrated amplifier 3 maintenance level after making car antenna installation.
Fig. 5 is that dwarf forms car antenna forms structural representation according to the preferred embodiment of the present invention.
In embodiments of the present invention, arrange to make full use of antenna, dwarf forms car antenna is made to possess diversified antenna function (such as, GPS navigation, in-car TV etc.) and be provided with multiple receiver module, oscillator or unit in dwarf forms car antenna.In embodiments of the present invention, in order to ensure that different antenna function modules is to the reception of respective signal, should take into full account that the shape of each antenna oscillator or area coverage are on the impact of other antenna function modules.Therefore, radio oscillator 4 and radio communication oscillator 6 can be configured to the Signal reception that its shape does not affect satellite antenna 3.In one embodiment, radio oscillator 4 and radio communication oscillator 6 can be configured to the upper space not covering described satellite antenna amplifier, such as, the upper space (such as) of radio oscillator 4 and radio communication oscillator 6 and satellite antenna 3 is without intersection.
It should be noted that, consider that the shape of dwarf forms car antenna shell can be approximated to be trapezoidal, in one preferred embodiment, its installation site on mounting base 2 can be set according to the height relationships of each parts, be not limited to the installation site shown in figure.In addition, for the ease of installing, the predeterminated position on mounting base 2 can be installed on according to each parts in dwarf forms car antenna of the present invention, and preferably can be screwed.Such as, in embodiments, radio oscillator 4 can be fixed on mounting base 2 by the base plate fastener 11 be mated, and base plate fastener 11 can as the feeder line of radio oscillator 4 to transmit radio signal.In embodiments, the wire or cable that are used for transmitting radio signal can be connected with this base plate fastener 11.
In one embodiment, dwarf forms car antenna provided by the invention can be suitable for being arranged on roof.For this reason, the first threaded portion 7 being adapted to pass through roof installing hole (not shown) can be configured with bottom mounting base 2; And the second threaded portion 8 detachably coordinated with the first threaded portion 7 can also be comprised according to the car antenna of embodiment of the present invention, the diameter of this second threaded portion 8 preferably should be greater than roof installing hole with from car antenna described in car internal fixtion.When fixing up an aerial wire, by outstanding inside vehicle roof by installing hole for the first threaded portion 7, then is matched with ledge in the car of the first threaded portion 7 in the second threaded portion 8.In embodiments, the first threaded portion 7 can be screw rod, and the second threaded portion 8 can for the combination nut that can coordinate with this screw rod.The structure of combination nut can comprise lower nuts and the top band palmula circle for being connected with roof coordinated with screw rod.Band palmula circle is connected with roof metallic plate when can work as nut.First threaded portion 7 can be hollow structure, and this hollow structure can run through the first threaded portion 7 and mounting base 2, and the wire in car antenna or cable can be introduced in car by this hollow structure.
In embodiments of the present invention, can by three cable (not shown) for transmitting the signal of signal transmitting and/or receiving element in dwarf forms car antenna.Such as, by three coaxial cables, connect each of satellite antenna 3, radio oscillator 4 and radio oscillator 6 respectively.One end that coaxial cable is penetrated in car by the first threaded portion 7 can arrange connector, so that be connected with the lead-out wire of in-vehicle device.
In a preferred embodiment, can also comprise according to the dwarf forms car antenna of embodiment of the present invention: be arranged on the rubber cushion 9 between shell 1 and roof.Rubber cushion 9 can have shock absorbing effect, protection car antenna intraware, improves car antenna useful life.In another embodiment, car antenna according to embodiment of the present invention can also comprise: be arranged on the waterproof apron 10 between mounting base 2 and roof, waterproof apron 10 is arranged on around the first threaded portion 7, namely around installing hole, thus improves water resistance.In various embodiments, the material of rubber cushion 9 and waterproof apron 10 can be rubber or silica gel.
It should be noted that, in embodiments of the present invention, the shell 1 of antenna and mounting base 2 are combined each antenna function module or assembly that (such as, by bayonet socket clamping or connected by screw) inner space formed afterwards is suitable for arranging in described dwarf forms car antenna.Such as, each antenna function module or assembly can be arranged on mounting base 2 or shell 1 by modes such as stickup, clamping, riveted joint or screw are fixing.The profile of the dwarf forms car antenna after combination can be as shown in Figure 6.
Fig. 6 is the dwarf forms car antenna appearance schematic diagram according to embodiment of the present invention.As shown in Figure 6, shark fins shape is preferably according to the car antenna profile after assembly (i.e. the profile of shell 1) of embodiment of the present invention.According to the dwarf forms car antenna of embodiment of the present invention, there is compact volume and low windage profile, be suitable for high vehicle speeds and use for a long time.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned execution mode; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each the concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible compound mode.
In addition, also can carry out combination in any between various different execution mode of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. a radio communication oscillator, is characterized in that, this radio communication oscillator comprises the sleeve loading structure and helical structure that are connected, and wherein, described sleeve loading structure comprises: inner sleeve, outer sleeve and with slide glass, wherein,
Add slide surface described in one end connection of described inner sleeve, the other end of described inner sleeve is fixed on mounting base; And
Described outer sleeve be fixed on described mounting base and with described mounting base altogether, this outer sleeve is placed on described inner sleeve away from described one end with slide glass and does not contact with described inner sleeve.
2. radio communication oscillator according to claim 1, is characterized in that, described helical structure has spire and stem; And
Described helical structure is connected with described sleeve loading structure by described stem.
3. radio communication oscillator according to claim 2, is characterized in that, described in on slide glass, there is peristome; And
It is inner that described stem is suitable for extending to described inner sleeve via described peristome.
4. the radio communication oscillator according to Claims 2 or 3, is characterized in that, described outer sleeve is coaxial with described inner sleeve; And the length of described inner sleeve is greater than the length of described outer sleeve; And
The circumferential end surfaces of described inner sleeve and the described link with slide glass has the multiple projections be uniformly distributed along the circumference; And described in have in the middle part of slide glass be suitable for described multiple projection insert multiple groove portions.
5. the radio communication oscillator according to Claims 2 or 3, is characterized in that, described in slide glass, there is multiple portion of windowing.
6. a dwarf forms car antenna, is characterized in that, comprising: the shell matched and mounting base and the following assembly be arranged on described mounting base:
Satellite antenna, is configured to export the satellite-signal of reception in car mobile satellite location equipment;
Radio oscillator, is configured to receive radio signals; And
Radio communication oscillator any one of claim 1-5 described in claim, this radio communication oscillator is configured at least one in the following wireless communication signals of wireless transmission/reception: 4G, 3G and 2G, and this radio communication oscillator is connected with Wireless Telecom Equipment in car by cable.
7. dwarf forms car antenna according to claim 6, is characterized in that, described dwarf forms car antenna also comprises: amplifier circuit module, and the radio signal be configured to described radio oscillator receives exports radio equipment in car to; And
Described radio oscillator is PCB antenna, and this PCB antenna connects described amplifier circuit module by feeder line.
8. dwarf forms car antenna according to claim 6, is characterized in that, described radio oscillator and described radio communication oscillator are configured to the upper space not covering described satellite antenna.
9. dwarf forms car antenna according to claim 6, is characterized in that, this dwarf forms car antenna is suitable for being arranged on roof; Wherein
The first threaded portion being adapted to pass through roof installing hole is configured with bottom described mounting base; And
Described dwarf forms car antenna also comprises the second threaded portion detachably coordinated with described first threaded portion, and the diameter of this second threaded portion is greater than described roof installing hole with from dwarf forms car antenna described in car internal fixtion.
10. dwarf forms car antenna according to claim 6, is characterized in that, the profile of this dwarf forms car antenna is shark fins shape.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410366107.8A CN105322281A (en) | 2014-07-29 | 2014-07-29 | Radio communication oscillator and short vehicle-mounted antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410366107.8A CN105322281A (en) | 2014-07-29 | 2014-07-29 | Radio communication oscillator and short vehicle-mounted antenna |
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| CN105322281A true CN105322281A (en) | 2016-02-10 |
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| CN103138039A (en) * | 2013-03-15 | 2013-06-05 | 苏州中兴山一电子有限公司 | Multifunctional antenna |
| CN103715494A (en) * | 2013-12-31 | 2014-04-09 | 卜放 | Vehicle mounted antenna |
| CN204118243U (en) * | 2014-07-29 | 2015-01-21 | 卜放 | Radio communication oscillator and dwarf forms car antenna |
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Effective date of registration: 20171213 Address after: 112531 1 groups of Jintun village, Jinjia Town, Changtu County, Tieling, Liaoning Province, 1, 2, 3, 4 and 5 Applicant after: Amphenol three Pu (Liaoning) Automotive Electronics Co. Address before: 110027 Shenyang economic and Technological Development Zone, Liaoning, Lin Hai Road, No. 18, No. Applicant before: Bo Fang |
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Application publication date: 20160210 |