CN104953232A - Antenna connection device and antenna system - Google Patents
Antenna connection device and antenna system Download PDFInfo
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- CN104953232A CN104953232A CN201510364788.9A CN201510364788A CN104953232A CN 104953232 A CN104953232 A CN 104953232A CN 201510364788 A CN201510364788 A CN 201510364788A CN 104953232 A CN104953232 A CN 104953232A
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Abstract
The invention relates to the technical field of wireless signal communication, particularly to an antenna connection device and an antenna system. The antenna connection device comprises a fixed gear and a rotating support, wherein the fixed gear is fixedly arranged on an antenna base, the rotating support is used for mounting of a signal receiving structure and rotationally mounted on the antenna base, and the rotating axis of the rotating support is coaxial with the axis of the fixed gear; a rotatable moving gear, signal triggering pieces and a shifting rod mounted on the moving gear are arranged on the rotating support, the moving gear and the fixed gear are arranged in meshed positions, the transmission ratio of the moving gear to the fixed gear is larger than 1, and the shifting rod can trigger the signal triggering pieces with rotation of the moving gear; the rotating support can rotate according to triggering signals of the signal triggering pieces. Through application of the antenna connection device and the antenna system, the structural optimization, the usage stability and the signal transmitting and receiving accuracy can be significantly improved.
Description
Technical field
The present invention relates to communicating wireless signals technical field, particularly relate to a kind of antenna connection device and antenna system.
Background technology
Along with the development of the communication technology, various communication equipment is applied with being continued to optimize, and wherein, for reception and the transmission of wireless signal, needs to use antenna.
In recent years, the requirement for the aspect such as accuracy of the structure optimization of antenna, stability in use and signal transmitting and receiving is more and more higher, therefore, improves the structure optimization of antenna, the accuracy of stability in use and signal transmitting and receiving becomes design object.
In prior art, antenna needs the equipment of aiming at the mark to form the positioning transceiving of signal, and the state of skew occurs the directional relation between antenna and target device, and the transmitting-receiving accuracy of signal will decay.And when the base of antenna rotates for some reason or offsets, keep directed for keeping antenna and target device to aim at, need to be set to the structure that can rotate between electric wire and base, under such configuration, antenna transmitting-receiving process signal by wire transmission to base, thus, comprise the parts such as base and form one group of combining structure of fixing, comprise the parts such as antenna and form one group of combining structure in relative rotation, and antenna is intended to receiving and transmitting signal process can aim at the mark equipment, and then when rotating, the wire that two ends connect with antenna and base respectively is then wound around with the rotation of antenna, and the rotation of antenna is in same direction, namely when dextrorotation or derotation are to certain angle or the number of turns, be wound around too intensive wire on the one hand the length in reserve of self to be exhausted, namely wire is all wound on the parts such as antenna, being rotated further of antenna will pull apart wire, be wound around the wire tightened on the other hand and form to each associated components such as antennas the state bundling and tie tight, and then by destroying the physical connection structure of the parts such as antenna, cause the damage of equipment.This makes antenna stability in use low.
In above prior art, the structure optimization of antenna is low, stability in use is low, and for avoiding wire to be excessively wound around and the defect that need adjust the aspects such as the accuracy of the signal transmitting and receiving that antenna rotation direction causes is low becomes those skilled in the art's technical issues that need to address.
Summary of the invention
The object of this invention is to provide a kind of antenna connection device and antenna system, will the accuracy of the structure optimization of antenna assembly, stability in use and signal transmitting and receiving be significantly improved by application of the present invention.
For solving the problems of the technologies described above, the invention provides a kind of antenna connection device, comprise fixed gear for being fixedly installed on antenna base and for installing Signal reception structure, and the swinging mounting of described antenna base can be arranged on rotationally, the pivot center of described swinging mounting and the axis coaxle of described fixed gear;
Described swinging mounting comprises moving gear, the signal trigger member that can rotate and is installed on the driving lever of described moving gear, described moving gear and described fixed gear are arranged at the position of engagement, and the gearratio of described fixed gear and described moving gear is greater than 1, rotate with described moving gear, described driving lever can trigger described signal trigger member;
Described swinging mounting can turn round according to the triggering signal of described signal trigger member.
Preferably, described fixed gear is specially the partial gear arranging the gear teeth along circumferential interval.
Preferably, described fixed gear comprises the gear teeth described in two groups to four groups, the gear teeth described in two groups to four groups along described fixed gear circumferential interval and be uniformly distributed.
Preferably, described fixed gear comprises the gear teeth described in three groups, and the gear teeth described in three groups are uniformly distributed in the border of described fixed gear each other with the angle of 120 degree.
Preferably, also comprise the Locking arc for preventing unordered rotation, described Locking arc is located at the rotation axis position of described moving gear.
Preferably, described signal trigger member be specially two travel switches, two described travel switches are equal with the distance of the pivot center of described swinging mounting respectively.
Preferably, described moving gear is specially the partial gear arranging the gear teeth along circumferential interval.
Preferably, the quantity of described moving gear is at least two, at least two described moving gears are positioned at the position of engagement successively, the gearratio of the described moving gear of each group of engagement is all greater than 1, described signal trigger member is triggered to postpone described driving lever, in at least two described moving gears, the described moving gear and the described fixed gear that are positioned at head end are arranged at the position of engagement, and described driving lever is arranged on and is positioned on the described moving gear of end.
The present invention also provides a kind of antenna system, comprise Signal reception structure and antenna base, also comprise the antenna connection device described in above-mentioned any one, described antenna connection device is installed on described antenna base, and described Signal reception structure installment is on the swinging mounting of described antenna connection device.
At one about in the execution mode of antenna connection device, antenna base is provided with fixing fixed gear, be provided with fixed gear coaxial on antenna base simultaneously, and the swinging mounting that can rotate, for the Signal reception structure installment of receiving and transmitting signal at swinging mounting, swinging mounting is also provided with signal trigger member and moving gear, wherein, moving gear arranges and is the position that fixed gear is meshed, and driving lever is provided with on moving gear, when moving gear turns to relevant position, driving lever can triggering signal trigger member, and swinging mounting can turn round according to the triggering signal of signal trigger member.The gearratio of above-mentioned fixed gear and moving gear is greater than 1, and when namely moving gear and fixed gear mediate rotation mutually, when fixed gear have rotated 1 circle relative to moving gear, moving gear does not reach 1 circle relative to the rotation of fixed gear.
Under above vibrational power flow, when Signal reception structure be receiving and transmitting signal all the time head for target equipment, when antenna base rotates for some reason, the fixed gear fixed with pedestal rotates with pedestal, and the swinging mounting that be fixed as one relative to Signal reception structure, and the moving gear that swinging mounting is installed, driving lever and signal trigger member are all rotated using the axis of fixed gear as rotation axis.Meanwhile, for the fixed gear be meshed and moving gear, owing to being exerted a force by fixed gear engagement, moving gear also rotates with the central axis of self, now, in this individual system of swinging mounting as a whole, driving lever follower gear along own axes rotation and rotate, and driving lever triggers the signal trigger member be fixed on swinging mounting when turning to certain position, thus, the signal that signal trigger member is triggered imply that swinging mounting reaches capacity around the rotation of fixed gear axis, then swinging mounting turns round according to the acquisition of triggering signal.In foregoing, Signal reception structure is generally the antenna receiving or send signal, and target device is generally satellite, and antenna base is installed on vehicle, boats and ships usually.Because the gearratio of fixed gear and moving gear is greater than 1, therefore, after swinging mounting rotates larger angle together with antenna, be namely greater than 360 degree, such as 1440 degree, shift fork just follower gear rotation and signal triggering is carried out to signal trigger member.Like this, connect the wire of antenna and antenna base when arranging sufficient length, just the time that antenna alignment satellite is longer can be guaranteed, namely antenna base rotates larger angle, when as 1440 degree, wire is while avoiding the unlimited disordered state be wound around, the opportunity of controlled reversion is extended to very large Angular range limits, turn avoid in rotation smaller angle like this, such as 360 degree, antenna just needs pivotal situation, for the revolution of antenna, certainly will cause and be in non-aligned state with satellite during turning round, and lose accurate information communication.
Therefore, the antenna assembly provided in present embodiment is secondary and add Angle ambiguity range limit by meshed gears, significantly improves the accuracy of structure optimization, stability in use and signal transmitting and receiving thus.
In a kind of execution mode of antenna system, antenna system comprises the antenna connection device proposed in Signal reception structure, antenna base and above-mentioned execution mode, antenna connection device is installed on antenna base, and Signal reception structure installment is on the swinging mounting of antenna connection device.The antenna system that present embodiment proposes can improve the accuracy of the structure optimization of antenna, stability in use and signal transmitting and receiving significantly.Concrete discussion refers to above-mentioned execution mode, repeats no more herein.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is antenna connection device structural representation provided by the invention;
Fig. 2 is the fixed gear schematic diagram of the incomplete mechanism gear mechanism with three groups of gear teeth;
In Fig. 1: fixed gear-1, swinging mounting-2, moving gear-21, driving lever-22, signal trigger member-23.
Embodiment
Core of the present invention is to provide a kind of antenna connection device and antenna system, will significantly improve the accuracy of the structure optimization of antenna assembly, stability in use and signal transmitting and receiving by application of the present invention.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is antenna connection device structural representation provided by the invention; Fig. 2 is the fixed gear schematic diagram of the incomplete mechanism gear mechanism with three groups of gear teeth.
According to figure, antenna connection device comprises fixed gear 1 for being fixedly installed on antenna base and for installing Signal reception structure, and the swinging mounting 2 of antenna base can be arranged on rotationally, the pivot center of swinging mounting 2 and the axis coaxle of fixed gear 1, swinging mounting 2 comprises the moving gear 21 that can rotate, signal trigger member 23 and the driving lever 22 be installed on moving gear 21, moving gear 21 and fixed gear 1 are arranged at the position of engagement, and fixed gear 21 is greater than 1 with the gearratio of moving gear 1, driving lever 22 follower gear 21 rotates and can triggering signal trigger member 23, swinging mounting 2 can turn round according to the triggering signal of signal trigger member 23.Under this structure, because fixed gear 21 and the gearratio of moving gear 1 are greater than 1, therefore when swinging mounting 2 rotates a circle with the axis of fixed gear 1, moving gear 21 is less than a circle around the angle of own axis, principle thus, by moving gear 21 and this pair meshed gears of fixed gear 1, after the Signal reception structure that just can realize being arranged on swinging mounting 2 is rotated and is greater than the angle of a circle, driving lever 22 just triggers signal trigger member 23, such as when gearratio is set to 4, then Signal reception structure rotates four circles with swinging mounting 2, namely 1440 degree time, driving lever 22 triggering signal trigger member 23, swinging mounting 2 drives Signal reception structure to turn round.
Signal reception structure is generally antenna, and when antenna needs to carry out communication to satelloid, antenna and satellite remain that the orientation attitude of aiming at is most important, and this state of aiming at that keeps makes communication signal clear and accurate.And when antenna base is arranged on some facility that can rotate, such as, antenna base is arranged on boats and ships, when boats and ships do not stop paying out raw turning to because of the various factors such as course, wind sheltering, particularly at certain in particular cases, boats and ships rotate multi-turn, when namely rotational angle is very large along dextrorotation or derotation around same direction, due to antenna and antenna base, need between antenna and boats and ships in other words to carry out signal data transmission by wire.Although wire can arrange longer, if and not to rotate control device, wire long so more also must occur being wound around completely and finally pull apart the situation of wire, the antenna connection device provided in the present embodiment, while making the relatively rotating and be in slave mode of antenna and antenna base, turn avoid both it and relatively rotate less angle, such as relatively rotate the situations such as 360 degree and just need slewing antenna, namely swinging mounting 2 is turned round, please note, just pivotal situation is needed to lose the attitude with satellite contraposition continually by causing antenna relatively rotating smaller angle, this will cause the accuracy of signal transmitting and receiving low.
By above discussion, this antenna connection device is by the setting of the fixed gear 1 and moving gear 21 that comprise engaging structure, the particularly gearratio vibrational power flow that is greater than 1, make antenna can rotate larger angle by relative antenna pedestal, such as 1440 degree when just make swinging mounting 21 turn round, this, while wire avoids the structural instability situation of complete unordered rotation, also extends angular limitation in relative rotation to greatest extent.Thus, antenna connection device provided by the invention considerably improves the accuracy of structure optimization, stability in use and signal transmitting and receiving.
On the basis of above-mentioned specific embodiment, in another specific embodiment, fixed gear 1 is set to the partial gear arranging the gear teeth along circumferential interval, the application of partial gear, make in swinging mounting 2 rotation process, moving gear 21 with have in the engaged transmission interval, fixed gear 1 position of the gear teeth, moving gear 21 rotates, simultaneously driving lever 22 follower gear 21 rotation and turn near signal trigger member 23; And in another interval, namely fixed gear 1 outer does not arrange the position of the gear teeth, the engaged transmission of the gear teeth is there is not between moving gear 21 and fixed gear 1, then between this rotational area, although swinging mounting 2 rotates around the axis of fixed gear 1, but driving lever 22 follower gear 21 is in relative to swinging mounting 2 state stopped operating together, and namely driving lever 22 stops turn signal trigger member 23.The setting of the fixed gear 1 of incomplete mechanism gear mechanism, make antenna and antenna base in relative rotation angular definitions scope widened further, simultaneously when fixed gear 1 entire outer diameter profile is constant, moving gear 21 without the need to increasing the gear teeth, namely without the need to increasing overall size.Which further improves structure optimization.
It is pointed out that the concept for the gearratio that it has been generally acknowledged that, have a kind of understanding mode to be the gear ratio of phase gear pair, the concept that gear ratio corresponds to gearratio can be applicable to complete gear structure.And the gear of the uncompleted structure applied is proposed in the present embodiment, to the concept of gearratio, more reasonable by judging the number of turns of mutually rotating.On this basis, when the gear of two complete gear structures is meshed, if gearratio is 4, namely when fixed gear 1 has relatively rotated 1440 degree, moving gear 21 relatively rotates 360 degree, for this example, when fixed gear 1 is set to incomplete mechanism gear mechanism, and the gear teeth are when occupying half territory, gear border, then, when fixed gear 1 relatively rotates 2880 degree, moving gear 21 now rotates 360 degree.So for above-mentioned specific embodiment, when fixed gear 1 is consistent with the profile of moving gear 21, namely during outside circle consistent size, and fixed gear 1 is set to incomplete mechanism gear mechanism, then moving gear 21 neither be consistent equal with the mutual rotational angle of fixed gear 1.In sum, the fixed gear 1 of uncompleted structure when integrated antenna jockey structure does not expand, can increase the Angular range limits that antenna rotates, therefore improves structure optimization.
Further, for the fixed gear 1 of above-mentioned uncompleted structure, it is set and comprises two groups to the four groups gear teeth, two groups to four groups gear teeth along fixed gear 1 circumferential interval and be uniformly distributed.Vibrational power flow so can improve its stability run in antenna connection device rotation process.Wherein, the most preferably structure arranges fixed gear 1 to comprise three groups of gear teeth, and three groups of gear teeth are uniformly distributed in the border of fixed gear each other with the angle of 120 degree.As shown in Figure 2, for having the fixed gear 1 of the uncompleted structure of three groups of gear teeth of 120 degree of angles each other in Fig. 2, for often organizing the gear teeth, its quantity is not limited, focus on moving gear 21 to rotate with the axis of swinging mounting 2 around fixed gear 1, during smoothing interval between two groups of gear teeth that moving gear 21 turns to fixed gear 1 in Fig. 2, due to fixed gear 1 gear teeth be not meshed with moving gear 21, then moving gear 21 does not rotate, within the scope of about 60 degree then between these two groups of gear teeth, driving lever 22 does not also rotate towards signal trigger member 23.This makes the range limit of rotational angle increase, and overall structure is without the need to arranging increase.
For the gear teeth group number of fixed gear 1 arranging incomplete mechanism gear mechanism, if set one group of gear teeth, then fixed gear relatively rotates 360 degree, just makes driving lever 22 be struck once, and if arrange and organize the gear teeth more, can be more accurate to the control of driving lever 22, such as, when fixed gear 1 having three groups of gear teeth are uniform to be arranged, driving lever 22 relatively rotates 120 degree at fixed gear and is just struck once, and when arranging four groups of gear teeth, driving lever 22 relatively rotates 90 degree at fixed gear and is struck once.Thus, the fixed gear of incomplete mechanism gear mechanism arranges several groups of gear teeth, set according to the motion requirement of driving lever 22.
Further, antenna connection device also comprises the Locking arc for preventing unordered rotation, and Locking arc is located at the rotation axis position of moving gear 21.By arranging Locking arc in rotation axis position, then moderately add the pivoting friction coefficient of moving gear 21, when moving gear 21 and the fixed gear 1 of incomplete mechanism gear mechanism are not in the state that teeth engage, Locking arc makes moving gear 21 avoid unordered rotation, which further improves operation stability.
In another specific embodiment, for signal trigger member 23, it is specifically set to two travel switches, and these two travel switches are equal with the distance of the pivot center of swinging mounting 2 respectively.So, swinging mounting 2 along dextrorotation rotate extremely extreme position time, driving lever 22 contacts with a travel switch and triggers travel switch, and when swinging mounting 2 rotates along derotation, driving lever 22 contacts with another travel switch in corresponding position and triggers.
For the setting position of two travel switches, it is centered by the rotation axis of moving gear 21, when the setting position of first travel switch and the line at moving gear 21 center are as 0 degree of position, second travel switch can be arranged on relative to any point within the scope of 360 degree of the first travel switch angle.Such as, when gearratio is 4, if when second travel switch is arranged on 90 degree of positions, driving lever 22 rotates from the first travel switch, and need fixed gear 1 to rotate 360 degree relative to moving gear 21, driving lever can be triggered to the second travel switch; And if change the setting position of the second travel switch, by its relative to the first stroke switch-linear hybrid when 180 degree of positions, then driving lever 22 is from the first travel switch transmission and when triggering the second travel switch, fixed gear 1 have rotated 720 degree relative to moving gear 21.Thus, arranged, can improve rotational angle range boundary by the physical location of two travel switches, the position setting of two travel switches is determined according to factors such as gearratios.
For signal trigger member, except the dextrorotation of corresponding swinging mounting 2 or derotation are rotated and arranged except the structure of two travel switches respectively, the switch that other can be triggered can also be set, such as, in relevant position, optoelectronic switch is set, make driving lever 22 can trigger optoelectronic switch under certain position and send signal, this equally can practical function.
In another specific embodiment, can also arrange moving gear is the partial gear arranging the gear teeth along circumferential interval.This can further expand rotational angle compass.
In another specific embodiment, the quantity that can also arrange moving gear 21 is at least two, at least two moving gears 21 are positioned at the position of engagement successively, the gearratio of the moving gear 21 of each group of engagement is all greater than 1, in at least two moving gears 21, the moving gear 21 being positioned at head end is arranged at the position of engagement with fixed gear 1, and driving lever 22 is arranged on and is positioned on the moving gear 21 of end.Compared to one group of meshed gears, many groups meshed gears can increase the slewing area boundary angle of swinging mounting 2 further, and organize in meshed gears more, for gearratio be all greater than 1 structure is set, all that gear near shift fork 22 side is slower in relative rotation, the gear of close fixed gear 1 side that it engages faster in relative rotation.
In a kind of specific embodiment of antenna system, antenna system comprises the antenna connection device proposed in Signal reception structure, antenna base and each specific embodiment above-mentioned, antenna connection device is installed on antenna base, and Signal reception structure installment is on the swinging mounting 2 of antenna connection device.The antenna system proposed in the present embodiment can improve the accuracy of the structure optimization of antenna, stability in use and signal transmitting and receiving significantly.Concrete discussion refers to each specific embodiment above-mentioned, repeats no more herein.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. an antenna connection device, it is characterized in that, comprise fixed gear (1) for being fixedly installed on antenna base and for installing Signal reception structure, and the swinging mounting (2) of described antenna base can be arranged on rotationally, the pivot center of described swinging mounting (2) and the axis coaxle of described fixed gear (1);
Described swinging mounting (2) comprises moving gear (21), the signal trigger member (23) that can rotate and is installed on the driving lever (22) of described moving gear (21), described moving gear (21) and described fixed gear (1) are arranged at the position of engagement, and described fixed gear (1) is greater than 1 with the gearratio of described moving gear (21), rotate with described moving gear (21), described driving lever (22) can trigger described signal trigger member (23);
Described swinging mounting (2) can turn round according to the triggering signal of described signal trigger member (23).
2. antenna connection device as claimed in claim 1, it is characterized in that, described fixed gear (1) is specially the partial gear arranging the gear teeth along circumferential interval.
3. antenna connection device as claimed in claim 2, it is characterized in that, described fixed gear (1) comprises the gear teeth described in two groups to four groups, the gear teeth described in two groups to four groups along described fixed gear (1) circumferential interval and be uniformly distributed.
4. antenna connection device as claimed in claim 3, it is characterized in that, described fixed gear (1) comprises the gear teeth described in three groups, and the gear teeth described in three groups are uniformly distributed in the border of described fixed gear (1) each other with the angle of 120 degree.
5. antenna connection device as claimed in claim 4, it is characterized in that, also comprise the Locking arc for preventing unordered rotation, described Locking arc is located at the rotation axis position of described moving gear (21).
6. antenna connection device as claimed in claim 5, is characterized in that, described signal trigger member (23) be specially two travel switches, two described travel switches are equal with the distance of the pivot center of described swinging mounting (2) respectively.
7. antenna connection device as claimed in claim 6, it is characterized in that, described moving gear (21) is specially the partial gear arranging the gear teeth along circumferential interval.
8. antenna connection device as claimed in claim 7, it is characterized in that, the quantity of described moving gear (21) is at least two, at least two described moving gears (21) are positioned at the position of engagement successively, the gearratio of the described moving gear (21) of each group of engagement is all greater than 1, described signal trigger member (23) is triggered to postpone described driving lever (22), in at least two described moving gears (21), the described moving gear (21) being positioned at head end is arranged at the position of engagement with described fixed gear (1), described driving lever (22) is arranged on and is positioned on the described moving gear (21) of end.
9. an antenna system, comprise Signal reception structure and antenna base, it is characterized in that, also comprise the antenna connection device as described in any one of claim 1 to 8, described antenna connection device is installed on described antenna base, and described Signal reception structure installment is on the swinging mounting (2) of described antenna connection device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510364788.9A CN104953232B (en) | 2015-06-26 | 2015-06-26 | A kind of antenna connection device and antenna system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510364788.9A CN104953232B (en) | 2015-06-26 | 2015-06-26 | A kind of antenna connection device and antenna system |
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| CN104953232A true CN104953232A (en) | 2015-09-30 |
| CN104953232B CN104953232B (en) | 2018-09-04 |
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| CN201510364788.9A Active CN104953232B (en) | 2015-06-26 | 2015-06-26 | A kind of antenna connection device and antenna system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025512A (en) * | 2016-05-26 | 2016-10-12 | 深圳市头家技术有限公司 | Shipborne satellite antenna |
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| CN104953232B (en) | 2018-09-04 |
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Address after: 315500 No.499, East Yuelin Road, Yuelin street, Fenghua District, Ningbo City, Zhejiang Province Patentee after: ZHEJIANG CHINASTAR ELECTRONIC SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 317500, No. 688, Central Avenue, new urban district, Taizhou, Zhejiang, Wenling Patentee before: ZHEJIANG CHINASTAR ELECTRONIC SCIENCE & TECHNOLOGY Co.,Ltd. |
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