Summary of the invention
The primary and foremost purpose of the present invention is intended at least solve one of above-mentioned technological deficiency, it is provided that a kind of full frequency band tuned antenna.
The secondary objective of the present invention is intended at least solve one of above-mentioned technological deficiency, it is provided that a kind of intelligent watch applying described full frequency band tuned antenna.
For reaching above technical purpose, the technical solution used in the present invention is as follows:
First providing a kind of full frequency band tuned antenna, it includes the first radiant body, the second radiant body and the ground structure extended from described second radiant body;Being provided with feeding network, described first radiant body and the second radiant body near described second radiant body place and tune feeding network described in system access respectively through link, described first radiant body is connected to be grounded by short-circuit structure with ground structure.
Specifically, described first radiant body is provided with distributing point, and described distributing point tunes system with link and is connected with coaxial cable.
Further, one end of described short-circuit structure is connected to the junction of described second radiant body and ground structure.
Further, described link tuning system includes multiple series connection and resonant element in parallel.
Preferably, described link tuning system also includes multiple selection switch that described resonant element selectivity accesses this link tuning system.
Specifically, each described resonant element includes inductance that is parallel with one another or that connect and electric capacity.
Preferably, described link tuning system and feeding network are printed on circuit boards.
It is highly preferred that described second radiant body, ground structure and short-circuit structure are one-body molded.
Secondly providing a kind of intelligent watch, it includes main part and the wearing portion extended from described main part, wherein, also includes foregoing full frequency band tuned antenna.
The structure of this intelligent watch is particularly as follows: described main part includes bezel, cluster, is attached at the table ear at this bezel, cluster edge, covers on the surface of this bezel, cluster end face and cover the table cover in this bezel, cluster bottom surface;The first wearing bar and second that described wearing portion includes respectively through described table ear is connected with described bezel, cluster dresses bar;First radiant body of described full frequency band tuned antenna is arranged on described first and dresses on bar, described second radiant body is arranged on described bezel, cluster, described ground structure is arranged on described bezel, cluster and second and dresses on bar, and described feeding network and link tuning system are contained in the table intracavity limited by described bezel, cluster, surface and table cover.
Described table ear at least includes the 3rd table ear for connecting described first wearing article and the 4th table ear, is connected with insulant between described 4th table ear and described bezel, cluster, and described 3rd table ear is electrically connected with described first wearing article and bezel, cluster respectively.
Preferably, described 3rd table ear, the first wearing article and bezel, cluster are one-body molded.
Described table ear also includes the first table ear and the second table ear of dressing bar electric connection for realizing described bezel, cluster and second.
Preferably, described bezel, cluster, the second wearing bar, the first table ear and the second table ear are one-body molded.
It is highly preferred that described bezel, cluster, the first wearing article, the second wearing article, the first table ear, the second table ear and the 3rd table ear are made up of metal material respectively.
Selectively, described table cover is made up of metal material;Described bezel, cluster and table cover are one-body molded.
Preferably, described table ear is attached at the edge of the end face near described bezel, cluster.
The such scheme that the present invention proposes, the change of existing system is only small, without influence on the compatibility of system, and realize simple, efficient.
Compared with prior art, the present invention has the advantage that
(1) the full frequency band tuned antenna of the present invention, simple in construction, electric property is superior, it is adaptable to the electronic installation of multiple miniaturization, especially in intelligent watch;
(2) the full frequency band tuned antenna of the present invention, has attached link tuning system, and this link tuning system composition is simple, tuning is easily, by tuning, this antenna can realize all frequency ranges that domestic business telecommunication is used: 2/3/4G network 824 960MHz, 1710 2690MHz;GPS1575.42±1.023MHz;WIFI2412—2472MHz;
(3) the full frequency band tuned antenna of the present invention, also is able to improve the antenna performance of each demand frequency range by tuning, improves the practicality of this antenna;
(4) intelligent watch of the present invention, have employed described full frequency band tuned antenna so that this intelligent watch disclosure satisfy that call and the performance of online, available existing 2G/3G/4G 5G network even in the future;
(5) intelligent watch of the present invention, reduces the restriction manufacturing material of main part, especially for table (end) covers and manufacturing on material without restriction, it is possible to designs the full metal jacket of more fashion, meets current esthetic requirement;
(6) intelligent watch of the present invention, owing to metal material can be adopted to manufacture main part, therefore also improves the structural reliability of intelligent watch;
(7) intelligent watch of the present invention, owing to the primary structure of antenna is arranged on surface and the wearing portion of main part, enormously simplify the stacking difficulty of body portion thereof electronic component, indoor design is made to simplify, and can increasing other additional use functions, the design making intelligent watch is more flexible, more diversified.
Aspect and advantage that the present invention adds will part provide in the following description, and these will become apparent from the description below, or is recognized by the practice of the present invention.
Detailed description of the invention
Being described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish.The embodiment described below with reference to accompanying drawing is illustrative of, and is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, and singulative used herein " ", " one ", " described " and " being somebody's turn to do " may also comprise plural form.Should be further understood that, the wording " including " used in the description of the present invention refers to there is described feature, integer, step, operation, element and/or assembly, but it is not excluded that existence or adds other features one or more, integer, step, operation, element, assembly and/or their group.It should be understood that when we claim element to be " connected " or during " coupled " to another element, it can be directly connected or coupled to other elements, or can also there is intermediary element.Additionally, " connection " used herein or " coupling " can include wireless connections or wireless couple.Wording "and/or" used herein includes one or more list the whole of item or any cell being associated and combines with whole.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (include technical term and scientific terminology), have with the those of ordinary skill in art of the present invention be commonly understood by identical meaning.It should also be understood that, those terms of definition in such as general dictionary, should be understood that there is the meaning consistent with the meaning in the context of prior art, and unless by specific definitions as here, otherwise will not explain by idealization or excessively formal implication.
With reference to Fig. 1, the full frequency band tuned antenna 1 of the present invention includes first radiant body the 11, second radiant body 12, ground structure 13, link tuning system 14 and feeding network 15.
Wherein, described first radiant body 11 is respectively equipped with distributing point 111 and earth point 112, this first radiant body 11 connects to realizing feed with described feeding network 15 with coaxial cable 16 by described distributing point 111, and this first radiant body 11 is connected to be grounded with the first interface 131 of described ground structure 13 by described earth point 112.
Described second radiant body 12 is respectively equipped with distributing point 121 and earth point 122, this second radiant body 12 connects with described feeding network 15 to realizing feed by described distributing point 121, and this second radiant body 12 is connected to be grounded with the 3rd interface 133 of described ground structure by described earth point 122.
Routinely, described feeding network 15 needs to be connected to be grounded with described ground structure 132, and specifically, described feeding network 15 is connected on the second interface 132 of described ground structure 13.
Further, with reference to Fig. 2, it is also connected with described link tuning system 14 between described first radiant body 11 and feeding network 15 to realize the Performance optimization to described full frequency band tuned antenna 1, and has finally made this full frequency band tuned antenna 1 realize full frequency band communication.Described link tuning system 14 includes primary path and multiple resonant element, described resonant element includes with described primary path is connected resonant element 141a and the resonant element 141b in parallel with described primary path, resonant element 141b one end ground connection of wherein said parallel connection.Flexible combination for ease of described resonant element 141a and resonant element 141b, being easy to described resonant element 141a and resonant element 141b alternative accesses described primary path to realize meeting actual tuning demand, all or part of resonant element 141a and resonant element 141b respectively further comprises selection switch 142a and selects switch 142b.
Specifically, described selection switch 142a is in parallel with described resonant element 141a, the described switch selecting the switch preferred single-pole single-throw(SPST type of 142a.When described selection switch 142a is in open-circuit condition, the path at this selection switch 142a place is in off state, input the signal tunnel along described resonant element 141a place of described primary path, and signal adjusting because the tunning effect generation of this resonant element 141a is corresponding after this resonant element 141a, to meet communicating requirement;When selecting switch 142a to connect some described, form the straight pathway parallel with described resonant element 141a, the signal inputting described primary path will either directly through described straight pathway, described resonant element 141a does not have signal to pass through, this resonant element 141a will not work, and is equivalent to this resonant element 141a that do not connect in primary path.
Described selection switch 142b connects with described resonant element 141b, and described selection switchs the preferred SPDT switch of 142b, and this selection switchs mono-outfan of 142b and connects with described resonant element 141b, and another outfan connects with primary path.When described selection switch 142b and described resonant element 141b conducting, the signal inputting described primary path will branch to described resonant element 141b, and there is corresponding adjustment at the tunning effect that can should be this resonant element 141b after this resonant element 141b in this signal, to meet communication requirement;When selecting switch 142b to connect with primary path some described, the signal of described output primary path will not be split to described resonant element 141b, described resonant element 141b does not have signal to pass through, and this resonant element 141b will not work, and is equivalent to do not have this resonant element 141b in parallel in primary path.
Further, described resonant element includes inductance and the electric capacity of serial or parallel connection, and specifically, inductance and capacitances in series constitute series resonant circuit, inductance and Capacitance parallel connection constitute antiresonant circuit, and series resonant circuit and antiresonant circuit all can participate in link tuning as described resonant element.Selectively, described resonant element 141a can include multiple series resonant circuit and/or antiresonant circuit, described resonant element 141b can also include multiple series resonant circuit and/or antiresonant circuit, the above circuit design between each series resonant circuit or antiresonant circuit can be identical, it is also possible to different.
Thus, described link tuning system 14 1 aspect can be able to be connected on primary path and the number of described resonant element in parallel realizes tuning by pre-setting, on the other hand can also by described select switch according to reality tuning need to adjust final turn on primary path connect and the number of described resonant element and the type of parallel connection realize tuning further, the implementation of this link tuning system 14 is versatile and flexible, and those skilled in the art can carry out Reasonable adjustment according to communication requirement.
According to above-mentioned described structure, the operation principle of described full frequency band tuned antenna 1 is particularly as follows: described first radiant body 11 couples generation high-frequency resonant as main radiator with described second radiant body 12, power end is connected to described distributing point 111 by described link tuning system 14 and returns to ground structure 13 to form loop again through described earth point 112, and thus produces low-frequency resonant.The effect of high-frequency resonant produced by this full frequency band tuned antenna 1 and the effect of low-frequency resonant can be tuned system 14 by described link and be optimized adjustment.
Specifically, with reference to Fig. 3 and Fig. 4, when described full frequency band tuned antenna 1 is respectively at low frequency state and high frequency state, there is good return loss characteristic (see Fig. 3) in wider frequency range, and show that this full frequency band tuned antenna 1 has good efficiency in corresponding frequency band from experimental data checking.In the present embodiment, under low frequency state, described link tunes 0.5pF electric capacity and the 15pF electric capacity in parallel with primary path that system 14 includes connecting with primary path;Under high frequency state, this link tuning system 14 includes the 0.5pF electric capacity connected with primary path.Further, when this full frequency band tuned antenna 1 is optimized and revised to the frequency range covered corresponding to GPS and WiFi, good return loss characteristic (see Fig. 4) is also shown, it was shown that this full frequency band tuned antenna 1 can realize GPS and WiFi communication.In the present embodiment, when GPS, described link tuning system 14 includes the 1.5pF electric capacity in parallel with primary path and the 18nH inductance connected with primary path;When WiFi, described link tuning system 14 includes the 12nH inductance in parallel with primary path and the 0.5pF electric capacity connected with primary path.
Thus, this full frequency band tuned antenna 1 can meet the communications band demand of domestic 2G, 3G, i.e. 824 2170MHz, it might even be possible to meet part LTE communication frequency range, and it is also accessible to realize communication in GPS and WiFi frequency range.
Described full frequency band tuned antenna 1 is suitably applied on miniature movable type communication terminal, for optimizing the structure of this full frequency band tuned antenna 1, compared with described first radiant body 11, described second radiant body 12 and ground structure 13 distance close to each other are less, even described ground structure 13 can extend from described second radiant body 12, described link tuning system 14 and feeding network 15 are typically printed on circuit board, and are disposed adjacent to the position of described second radiant body 12.Thus, this full frequency band tuned antenna 1 organizational structure mainly include two apart from relatively large part: a part is described first radiant body 11, another part is to include described second radiant body 12, ground structure 13 and be printed with the circuit board of described link tuning system 14 and feeding network 15, described first radiant body 11 first passes through described coaxial cable 16 and is connected with described circuit board to realize feed, and this first radiant body 11 is connected to be grounded also by the junction of short-circuit structure with described second radiant body 12 and ground structure 13.
The full frequency band tuned antenna 1 of above-mentioned optimization structure is preferably adapted for and is applied on intelligent watch, and below for intelligent watch, structure and function to described full frequency band tuned antenna 1 are further described.
With reference to Fig. 5, the intelligent watch 2 of the present invention includes main part 21 and the wearing portion 22 extended from this main part 21, and each component of described full frequency band tuned antenna 1 is nested or is fused in main part 21 and the wearing portion 22 of this smart antenna 2.
Specifically, described main part 21 includes bezel, cluster 211, be attached at four table ears at this bezel, cluster 211 edge (respectively the first table ear 212a, the second table ear 212b, the 3rd table ear 212c and the four table ear 212d), cover on the surface 213 of this bezel, cluster 211 end face and cover the table cover 214 in this bezel, cluster 211 bottom surface, and described bezel, cluster 211, surface 213 and table cover 214 collectively define a table chamber (not shown).The first wearing bar 221 and second that described wearing portion 22 includes respectively through described four table ears are connected with described bezel, cluster 211 dresses bar 222, wherein, described first wearing article 221 is connected with described bezel, cluster 211 by the 3rd table ear 212c and the four table ear 212d, and described second dresses bar 222 is connected with described bezel, cluster 211 by described first table ear 212a and the second table ear 212b;One end that described first wearing bar 221 and the second wearing bar 222 are not connected with described bezel, cluster 211 carries out detachable connection each other by conventional hasp, to form the loop configuration being available for weared on wrist.
With reference to Fig. 6, first radiant body 11 of described full frequency band tuned antenna 1 is arranged on described first and dresses on bar 221, described bezel, cluster the 211, first table ear 212a, the second table ear 212b and the second are dressed bar 222 and collectively form the second radiant body 12 and the ground structure 13 of described full frequency band tuned antenna 1, and described link tuning system 14 and feeding network 15 are printed on circuit board (not shown) and above and are contained in described table intracavity.
Further, described first wearing article 221 is provided with two connection positions being connected with described bezel, cluster 211: one is connected position and is connected with described bezel, cluster 211 by described 3rd table ear 212c, and another is connected position and is connected with described bezel, cluster 211 by described 4th table ear 212d.The two ends of described 3rd table ear 212c are electrically connected with described first wearing article 221 and bezel, cluster 211 respectively, and described 4th table ear 212b realizes the electric connection of described first wearing article 221 and the described circuit board comprising link tuning system 14 and feeding network 15 by built-in described coaxial cable 16.It can thus be appreciated that, described first dresses bar 221 is equivalent to described first radiant body 11, the positions that connect that this first wearing article 221 is connected with described 4th table ear 212d are equivalent to the distributing point 111 of described first radiant body 11, and the positions that connect that this first wearing article 221 is connected with described 3rd table ear 212c are equivalent to the earth point 112 of described first radiant body 11.
Described second dress bar 222 also be provided with two with the connection position of described bezel, cluster 211: one is connected position and is electrically connected by described first table ear 212a and described bezel, cluster 211, and another is connected position and is electrically connected by described second table ear 212b and described bezel, cluster 211.
At this need it is further noted that " electric connection " mentioned above be interpreted as from physique fully in contact with, be absent from gap between two components contacted with each other.
From above structure, described first dresses bar 211 is equivalent to described first radiant body 11, described 3rd table ear 212c is equivalent to the short-circuit structure of described first radiant body 11 ground connection, described 4th table ear 212d is equivalent to the supporting construction of described coaxial cable 16, part bezel, cluster 211 between described 3rd table ear 212c and the 4th table ear 212d is equivalent to described second radiant body 12, other parts of described bezel, cluster 211 and the first table ear 212a, the second table ear 212b, and the second wearing bar 222 is collectively as described ground structure 13.Described first radiant body 11 1 aspect is connected to be supplied electric current with described feeding network 15, on the other hand with described ground structure 13 short circuit, thus achieves inverse F type antenna (IFA) structure, is advantageously implemented small size antenna.
nullConsider from the manufacture material of described intelligent watch 2,Outside being arranged on described table chamber due to described first radiant body 11,Script is carried the circuit board of radiant body without Clearance requirement,Therefore the restriction of the appearance design of this intelligent watch 2 is greatly reduced,Only require that described 4th table ear 212d adopts insulant to make,To realize the non-electric connection between the 4th table ear 212d and bezel, cluster 211,The manufacture material of the external member of this intelligent watch 2 is not strictly limited,In order to improve the electric property of this intelligent watch 2,Also for promoting its structural reliability,Also for the aesthetics and the stylishness that improve its outward appearance,Described bezel, cluster 211、Table cover 214、First table ear 212a、Second table ear 212b、3rd table ear 212c、First wearing bar 221 and the second wearing bar 222 all can be made up of metal material,And all component or partial component are one-body molded.Selectively, described 3rd table ear 212c, the first wearing article 221 and bezel, cluster 211 are one-body molded, or, described bezel, cluster the 211, first table ear 212a, the second table ear 212b and the second wearing bar 222 are one-body molded, or, described bezel, cluster 211 and table cover 214 are one-body molded.
Further, owing between described first radiant body 11 and the second radiant body 12, coupling produces high-frequency resonant, coupling amount between this first radiant body 11 and second radiant body 12 except can tuning system 14 and being adjusted by described link, the adjustment of the physical distance between this first radiant body 11 and second radiant body 12 can also realize tuning, namely the distance between bar 221 and bezel, cluster 211 is dressed by first in intelligent watch 2 described in appropriate design, or can be understood as the length of described 3rd table ear 212c and the four table ear 212d of described adjustment, the adjustment of high-frequency resonant and bandwidth can be realized.As it is shown in fig. 7, adjustable frequency range can from 1.5GHz to 2.8GHz.
With reference to Fig. 8, if this intelligent watch 2 adopts all-metal to design, the galvanic areas on its surface will be distributed centered by described 4th table ear 212d, when described table ear is attached at when the edge of described bezel, cluster 211 end face, the heavy current region of the surface current of this intelligent watch 2 is close to the end face of described bezel, cluster 211, away from the described table cover 214 with human contact, the comfort level that this intelligent watch 2 is worn can be improved on the one hand, staff is avoided to receive the impact of heavy current, staff can also be avoided on the other hand to affect the radiance of described full frequency band tuned antenna 1, reduce radiation loss.
Those skilled in the art of the present technique are appreciated that, " terminal " used herein above, " terminal unit " had both included the equipment of wireless signal receiver, it only possesses the equipment of wireless signal receiver of non-emissive ability, include again the equipment receiving and launching hardware, it has the reception that on bidirectional communication link, can perform two-way communication and the equipment launching hardware.This equipment may include that honeycomb or other communication equipments, and it has single line display or multi-line display or does not have honeycomb or other communication equipments of multi-line display;PCS (PersonalCommunicationsService, PCS Personal Communications System), its can combine voice, data process, fax and/or its communication ability;PDA (PersonalDigitalAssistant, personal digital assistant), it can include radio frequency receiver, pager, the Internet/intranet access, web browser, notepad, calendar and/or GPS (GlobalPositioningSystem, global positioning system) receptor;Conventional laptop and/or palmtop computer or other equipment, it has and/or includes the conventional laptop of radio frequency receiver and/or palmtop computer or other equipment." terminal " used herein above, " terminal unit " can be portable, can transport, be arranged in the vehicles (aviation, sea-freight and/or land), or it is suitable for and/or is configured at local runtime, and/or with distribution form, any other position operating in the earth and/or space is run." terminal " used herein above, " terminal unit " can also is that communication terminal, access terminals, music/video playback terminal, can be such as PDA, MID (MobileInternetDevice, mobile internet device) and/or there is the mobile phone of music/video playing function, it is also possible to it is the equipment such as intelligent television, Set Top Box.
The above is only the some embodiments of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.