Source: https://patents.google.com/patent/CN104319478B/en
Timestamp: 2019-11-23 03:36:46
Document Index: 52172547

Matched Legal Cases: ['Application No. 201210110600', 'art 16', 'art 16', 'art 16', 'art 16', 'art 16']

CN104319478B - Antenna equipment for portable terminal and the portable terminal with antenna equipment - Google Patents
Antenna equipment for portable terminal and the portable terminal with antenna equipment Download PDF
CN104319478B
CN104319478B CN201410584683.XA CN201410584683A CN104319478B CN 104319478 B CN104319478 B CN 104319478B CN 201410584683 A CN201410584683 A CN 201410584683A CN 104319478 B CN104319478 B CN 104319478B
CN201410584683.XA
CN104319478A (en
金宰熙
边俊豪
朴世铉
金锡虎
2011-04-14 Priority to KR10-2011-0034548 priority
2012-04-16 Application filed by 三星电子株式会社 filed Critical 三星电子株式会社
2012-04-16 Priority to CN 201210110600 priority patent/CN102738556B/en
2015-01-28 Publication of CN104319478A publication Critical patent/CN104319478A/en
2017-06-06 Publication of CN104319478B publication Critical patent/CN104319478B/en
The present invention provides a kind of antenna equipment for portable terminal and the portable terminal with the antenna equipment, and the portable terminal has mainboard.The antenna equipment includes：Primary antenna, is electrically connected to the feeder line of mainboard.Metal framework is configured to define a part for the case frame of the outside of portable terminal, and metal framework is divided into the Part I and Part II for separating.The Part I is electrically connected to the feeder line of primary antenna or mainboard and is designed to be radiated, and the Part II is electrically connected to the earthed surface of mainboard.The metal framework strengthens whole antenna performance, rather than causes antenna performance to weaken by interference.
Antenna equipment for portable terminal and the portable terminal with antenna equipment
The application is the applying date on April 16th, 2012, Application No. 201210110600.4, entitled " is used for The divisional application of the application for a patent for invention of the antenna equipment of portable terminal and the portable terminal with antenna equipment ".
This disclosure relates to the antenna equipment in a kind of portable terminal.
At present, the rapid advances in field of telecommunications are attributed to, portable terminal is (for example, mobile phone, smart mobile phone, PDA, flat Plate computer, kneetop computer etc.) just becoming the necessity of modern society.
In recent years since, the function of conventional portable terminal has been expanded, while size and weight have been remained to most It is small.Slim, the generally rectangular device without prominent antenna has been popularized.In these devices, it is configured with for language The built-in aerial of sound communication, internet access etc..However, the function of extension needs more electronic devices so that inner space It is restricted.Therefore, for these devices, design challenges are：Suitable space is found to encapsulate including built-in aerial Additional component, while keep described device it is slim, lightweight and small.
When antenna, antenna must be enough to realize that desired performance refers to relative to the arrangement and design of miscellaneous part Mark.In general, design challenges are：The antenna of sufficient length is encapsulated in current small device to meet requirement.Additionally, near Metal master to be set for aesthetic feeling has been configured to be formed a part for the case frame of the outward appearance of portable terminal.Should Metal master causes the reflection of RF power, so as to cause the performance degradation of antenna.
It is an aspect of the invention at least substantially solve the above problems and/or shortcoming, and it is to provide at down The advantage in face.Therefore, it is an aspect of the invention to provide a kind of antenna equipment for portable terminal, the antenna equipment is used Antenna performance is deteriorated in the metal master for the part for preventing that case frame is set and be configured to for aesthetic feeling.
It is another aspect of the invention to provide a kind of antenna equipment for portable terminal, the antenna assembly passes through will The metal master of case frame strengthens antenna performance as antenna radiator.
According to an aspect of the present invention, there is provided a kind of antenna equipment for the portable terminal with mainboard.The antenna Equipment includes：Primary antenna, is electrically connected to the feeder line of mainboard.Metal framework is configured to define the housing of the outside of portable terminal A part for framework.Metal framework is divided into the Part I and Part II for separating.The Part I is electrically connected to master The feeder line of antenna or mainboard simultaneously is designed to be radiated.The Part II is electrically connected with the earthed surface of mainboard.
In various embodiments of the present invention, metal framework by as spurious radiation element, improve built-in aerial With, radiate and/or reduce noise in additional frequency bands and strengthen antenna performance, rather than make the performance degradation of built-in aerial.
By the detailed description for carrying out below in conjunction with the accompanying drawings, features described above of the invention and advantage will become more clear Chu, in the accompanying drawings：
Fig. 1 is the stereogram of the portable terminal for showing exemplary embodiment of the invention；
Fig. 2A is the structure for being assemblied in the antenna equipment in portable terminal for showing exemplary embodiment of the invention The top view made；
Fig. 2 B show the illustrative metal framework of portable terminal；
Fig. 3 is to show not include as the traditional antenna equipment of the metal framework of antenna with of the invention including conduct The curve map of the comparing of the antenna performance between the antenna equipment of the metal framework of antenna；
Fig. 4 is the housing frame including the metal framework as antenna element for showing exemplary embodiment of the invention The view of the construction of frame.
Hereinafter, exemplary embodiment of the invention is described below with reference to accompanying drawings.For clear and brief mesh , known function or construction are not described in detail, because the known function or construction can make the present invention unnecessary Details on fog.The term described below being limited in view of the function in the present invention can be according to user and operator Intention or implementation and it is different.Therefore, it should the term is limited on the basis of disclosed in entire disclosure.
In brief, the present invention relates to a kind of antenna equipment for portable terminal, wherein, it is configured to case frame The metal framework of a part be implemented as strengthening antenna performance rather than making the antenna element of built-in aerial performance degradation.Should Metal framework can have the additional purpose of the aesthetic feeling of enhancing portable terminal.
Additionally, the present invention relates to a kind of electronic installation including antenna equipment, wherein, it is configured to one of case frame The metal framework for dividing is implemented as strengthening antenna performance rather than making the antenna element of built-in aerial performance degradation.The electronics is filled Putting can be mobile terminals or portable terminal.
Fig. 1 is the stereogram for showing the portable terminal 10 according to exemplary embodiment.Portable terminal can be electronics One example of device.Additionally, portable terminal can be mobile terminals.Portable terminal 10 includes limiting outer surface Case frame 11, be provided with following element in the case frame 11：Display 12, for display image and video； Loudspeaker 13, for exporting sound；Microphone 14, for input audio signal；Button 15 or touch key-press, for user Input.Display 12 can be liquid crystal display (LCD), plasma display (PDP) etc., in addition, display 12 can be should With the touch-screen of touch sensor.Touch-screen shows the data received by antenna.The electronic device related to aforementioned components with And other treatment electronic device, control electronic device and RF communication electronics can be installed in the portable terminals that will be described On main printed circuit board.
Case frame 11 includes metal framework 16, and metal framework 16 can be arranged to strengthen the aesthetic feeling of portable terminal 10 And/or rigidity.Metal framework 16 is around main printed circuit board (motherboard).In conventional portable terminal, such metal Framework causes its electromagnetic interaction with mainboard and built-in aerial.As a result, in traditional metal frame is weakened due to interference Put the performance of antenna.Described in detail as follows, the structure proposed by the present invention for solving this problem has been provided below Make.Metal framework 16 is separated at least two parts.The Part I of metal framework 16 is sub-antenna, and by Part I The radiation and improvement of itself match to aid in the radiation of primary antenna with primary antenna.The Part II of metal framework 16 can be Except the ground connection main body of noise.
Fig. 2A is the example of the antenna equipment 110 in portable terminal 10 of exemplary embodiment of the invention Property construction top view.Antenna equipment 110 is in operational frequency bands or wave band from the sending signal of portable terminal 10/receive up to portable The signal of formula terminal 10.Portable terminal 10 includes main printed circuit board 100 (for example, motherboard of portable terminal 10), main print Printed circuit board 100 includes RF communication unit (not shown), and RF communication units have the transceiver coordinated with antenna equipment 110.It is main Plate 100 includes the feeder line 112 for electrically connecting RF communication units and antenna equipment 110, and mainboard 100 also includes earthed surface 101, day Line equipment 110 is grounded to earthed surface 101.
Antenna equipment 110 includes the sub-antenna of primary antenna 111 and at least one, and at least one sub-antenna can aid in master The radiation of antenna 111 and/or the signal of transmission/reception frequency band different from the frequency band of primary antenna 111.Primary antenna 111 can be The type for being attached to the carrier for being arranged in portable terminal 10 and being fixed on mainboard 100 is, the class for being attached directly to mainboard 100 Type etc..In alternate embodiments, primary antenna 111 can be the external type of the outside for being projected into portable terminal 10.Main day Line 111 can be projected into the outside of portable terminal 10.
Specifically, sub-antenna can be the metal framework 16 of case frame, and metal framework 16 is also set to enhancing just Take the aesthetic feeling of formula terminal 10.As described previously, metal framework 16 is separated at least two parts.The first of metal framework 16 Part 16-1 is sub-antenna, and the sub-antenna can be electrically connected and together with primary antenna 111 by attachment means 19 with primary antenna 111 Radiation.That is, Part I 16-1 is from the receiving surface electric current of primary antenna 111 and radiates.Attachment means 19 can be any suitable Device, for example, the electric connector such as mechanical pressure type electric connector, spring-loaded electric connector, welded electric connector.It is (same The connector of sample is applied below to the attachment means 18 and 20 for discussing.)
The Part I 16-1 of metal framework 16 advantageously strengthens day by being used as spurious radiation element in operational frequency bands Linear energy, so as to increase overall effective antenna size.This can be without any exceptional space of increase in portable terminal 10 Valuably realize.
Here, it is noted that in optional design, Part I 16-1 may be coupled directly to feeder line 112 and still to The mode of prestige is radiated, rather than is directly electrically connected to primary antenna 111 as described.
The Part II 16-2 with Part I 16-1 separate in metal framework 16 leads in one or more precalculated positions Cross such as attachment means 181At least one attachment means be electrically connected to mainboard 100 earthed surface 101 (be used as ground connection lead Body).That is, Part II 16-2 is used as the additional ground main body of the antenna equipment of exemplary embodiment of the invention.As schemed What 2B was described, Part II 16-2 can extend into a U-shaped part around the whole main body of portable terminal 10.That is, second Point 16-2 is configurable to U-shaped, is continuously extended with the periphery along portable terminal 10, so as to along generally it is rectangular just The whole and at least one cross side for taking two longitudinal direction sides of formula terminal 10 extend.In this example, four attachment means 181、 182、183With 184In each attachment means be used for Part II 16-2 is grounded to connecing for mainboard 100 at each predetermined point Ground surface.
The Part II 16-2 of metal framework 16 can prevent Part II 16-2 mutual with electromagnetism between mainboard 100 in itself Noise caused by effect.When the metal framework in conventional portable terminal be not configured to ground connection main body when, can due to it is portable The electromagnetic interaction of the primary antenna or mainboard of formula terminal and deteriorate antenna performance.By contrast, embodiments of the invention lead to Is crossed and metal framework is divided into two parts of separation and makes Part II 16-2 be grounded to mitigate this problem.
Although Part II 16-2 is electrically connected at one or more points with the earthed surface 101 of mainboard 100, second Part 16-2 is designed to cause the operational frequency bands internal resonance in portable terminal 10 due to earth current etc..Part II 16-2 is also designed to not resonate.Additionally, Part II 16-2 can be by Part II 16-2 and primary antenna 111 or the first Arrange suitable magnetic material at strategic locations between the 16-1 of part and with primary antenna 111 and Part I 16-1 magnetic couplings Close.
For making a kind of do not resonate modes of (therefore, non-radiating) of Part II 16-2 be：Part II 16-2 has The length smaller than 1/4 wavelength in primary antenna 111 or the resonant frequency of Part I 16-1.According to the operation of portable terminal 10 Frequency band, the whole U-shaped length of Part II 16-2 can be more long than 1/4 wavelength in band of operation, therefore, Part II 16-2 can It is designed to discontinuous at the one or more points along periphery so that each subdivision of Part II 16-2 will be less than 1/ 4 wavelength.
Even if having than 1/4 wavelength in primary antenna 111 or the resonant frequency of Part I 16-1 in Part II 16-2 In the case of big length, the another way for preventing Part II 16-2 from radiating is：Set with than in resonant frequency The small spaced apart multiple attachment means 18i of 1/4 wavelength.Therefore, in the example of Fig. 2 B, it is assumed that whole U-shaped length surpasses 1/4 wavelength is crossed, however, the use of along the distance between adjacent attachment means in periphery being four attachment means 18 of d131、182、 183With 184.Using be set to be less than 1/4 wavelength apart from d13, it is therefore prevented that Part II 16-2 radiate.
Referring still to Fig. 2A, in order to be used for radio communication, mainboard 100 may include such as radio frequency (RF) connector 102, ground connection The element of surface 101, chip, circuit pattern etc..Mainboard 100 includes the feeder line 112 electrically connected with RF connectors 102 and ground connection The earth point 113 of the electrical connection of surface 101.In fig. 2, earthed surface 101 is illustrated with section view, to show the He of RF connectors 102 The representative configuration of feeder line 112.Feeder line 112 can be (for example) conductive strips that micro-strip sends line, and earthed surface 101 is used as micro- The earthed surface of band.In the exemplary embodiment, primary antenna 111 is electrically connected with feeder line 112 and earth point 113.That is, predetermined length Stub extend from primary antenna 111 in precalculated position, to be connected to earth point 113.However, in other embodiments, can Remove the connection of primary antenna 111 to earth point 113.
Primary antenna 111 may include to correspond respectively to the feed pin and grounding pin of feeder line 112 and earth point 113, to set up conjunction Suitable electrical connection.Primary antenna 111 receives feed current by feeder line 112.Additionally, primary antenna 111 is by earth point 113 and ground connection Surface 101 electrically connects.
In addition, antenna equipment may also include the second sub-antenna 114, the second sub-antenna 114 is electrically connected by preset device 20 To the Part I 16-1 of metal framework 16.Second sub-antenna 114 can aid in the radiation of primary antenna 111, or transmittable/reception The signal of the frequency band different from the frequency band of primary antenna 111.As shown, the second sub-antenna 114 can be built into portable In terminal 10.
In the case where Part I 16-1 is not electrically connected to, primary antenna 111 may be in the operation of portable terminal 10 Expectation resonant frequency in wave band is mismatched.By being connected to Part I 16-1 as the first sub-antenna and by first Sub-antenna 16-1 is connected to the second sub-antenna 114 of suitable design, can compensate for this mismatch, to reduce or effectively eliminate this Plant and mismatch.Additionally, sub-antenna 16-1 and 114 can be sent in the frequency band different from the frequency band of primary antenna 111/receive signal.Make It is an example, primary antenna 111 can send/receive signal in calling wave band, and sub-antenna 16-1 and 114 can be in bluetooth (Bluetooth), Wireless Fidelity (WiFi), DMB (DMB), global positioning system (GPS) etc. frequency band send/ Receive signal.(this aspect of antenna equipment 110 can be similar to the characteristic of log-periodic antenna, and the different piece quilt of antenna It is designed to carry out radiating/receiving in different frequencies.)
Fig. 3 is to show not include also including making with of the invention as the traditional antenna equipment of the metal framework of antenna For the curve map that the antenna performance between the antenna equipment of the metal framework of exemplary antenna compares.
As shown in figure 3, compared with conventional art, exemplary antenna equipment of the invention has been improved in corresponding frequency band The antenna performance of (for example, CDMA (CDMA), personal communication service (PCS)).In other words, because primary antenna and metal frame Frame is disturbed, it is believed that traditional antenna equipment will not work well.It is of the invention as seen in Performance comparision curve Exemplary antenna shows efficiency higher in two operational frequency bands of portable terminal.
Here, it is noted that the antenna equipment of exemplary embodiment of the invention can enter one by mainboard 100 Step include antenna matching unit or match circuit correct antenna 111,16-1 and/or 114 resonant frequency mismatch.
A kind of method for ensureing the performance of primary antenna is removal metal framework, but as described above, it will be recognized that To, when at case frame construct metal framework to be formed in an aesthetically pleasing appearance when, it is of the invention The construction of the antenna equipment of exemplary embodiment is effective in terms of antenna performance is improved.Additionally, except metal framework 16 it Outward, present invention can apply to the equivalent of metal framework 16, i.e. constructed at case frame in the case where aesthetic feeling is not considered And make the metal master of the performance degradation of primary antenna 111.However, present invention acknowledges that：The metal framework of one can lead to because of its form Cross and easily disturbed with primary antenna 111 with the electromagnetic interaction of mainboard 100.Therefore, as described previously, according to this hair The metal framework 16 of bright exemplary embodiment is separated at least two parts, and separate part is implemented as sub- day respectively Line and ground connection main body.In alternate embodiments, only having a part in the part for separate can connect (for example, only part 16-1 or part 16-2 are designed to be connected respectively to primary antenna 111 and earthed surface 101, and other parts " are not connected to (floating)”)。
In general, primary antenna 111 is located at the top or bottom of portable terminal 10.Its reason is, when user will be portable When formula terminal is held in his/her hand, the both sides of portable terminal generally contact with the hand of user.Therefore, by by primary antenna 111 tops or bottom for being arranged in portable terminal so that caused by the both sides of the hand contact portable terminal of user Interference is smaller.In view of this, it may be desirable to, sub-antenna is located at the top or bottom of portable terminal, and this embodiment is in figure Shown in 2A and Fig. 2 B.
Additionally, if be held in conventional portable terminal in his/her hand by user, metal framework generally with the hand of user Contact.This causes antenna performance further to weaken.Even if in the antenna equipment of exemplary embodiment of the invention, if Hand touches the metal framework 16 of conduction electric current, then same it cannot be guaranteed that improved antenna performance.Specifically, if hand touches gold Belong to the Part I 16-1 of framework 16, then can not can guarantee that improved antenna performance.Described for solving this below in reference to Fig. 4 The construction of individual problem.
Fig. 4 is the view of the case frame for being configured with metal framework for showing exemplary embodiment of the invention.Such as As showing, metal framework 16 is recessed from case frame 11, and Part I 16-1 is contacted with the hand for preventing user.Metal framework 16 have at least two cut-away portions 17 (also figure 2 illustrates), and metal framework 16 is separated at least two part 16-1 With 16-2 or some.Additionally, metal framework 16 is exposed to outside, and it is configured to recessed from the outer surface of case frame 11 Enter.Therefore, when be held in for terminal in his/her hand by user, hand will not touch metal framework 16, so improved day can be ensured Linear energy.Specifically, as described previously, the Part I 16-1 of metal framework 16 will not be contacted with the hand of user, therefore, It is capable of achieving improved antenna performance.
As described above, antenna equipment of the invention can make metal framework be embodied as that antenna performance can be strengthened Element, the metal framework is configured to provide a part for the aesthetically case frame of the outward appearance of pleasant.
Although the present invention, the technology of this area has shown and described with reference to particularly advantageous embodiment of the invention Personnel will be appreciated that in the case where the spirit and scope of the present invention being defined by the claims are not departed from, can carry out herein Various changes in form and in details.
1. a kind of portable terminal, including：
First antenna, is electrically connected to the feeder line of mainboard；
Metal framework, is configured to define a part for the case frame of the outside of portable terminal, and be divided at least one Part I and at least one Part II, at least one Part I are electrically connected to first antenna, described at least one Part II is separated with least one Part I.
2. portable terminal according to claim 1, wherein, first antenna includes being electrically connected to ground the cutting back on surface Line.
3. portable terminal according to claim 1, the portable terminal also includes at least one second antennas, described At least one second antennas are arranged in case frame, are electrically connected at least one Part I.
4. portable terminal according to claim 3, wherein, described at least one second antennas be connected to first antenna or At least one Part I of metal framework, to compensate at least one Part I of first antenna or metal framework In the mismatch of the resonant frequency of portable terminal.
5. portable terminal according to claim 1, wherein, metal framework is exposed to outside, and from case frame Outer surface is recessed.
6. portable terminal according to claim 1, wherein, at least one Part I of metal framework is constructed Into the mismatch of resonant frequency of the compensation first antenna in the band of operation of portable terminal.
7. portable terminal according to claim 1, wherein, described at least one first of first antenna and metal framework Part is configured to be sent and received signal in different frequency bands respectively.
8. portable terminal according to claim 7, wherein, at least one Part I of metal framework is constructed Letter is sent and received into the frequency band at least one of bluetooth, Wireless Fidelity, DMB, global positioning system Number.
9. portable terminal according to claim 1, wherein, at least one Part II and mainboard of metal framework Earthed surface by the multiple connections spaced apart by a predetermined distance of the length of at least one Part II along metal framework Device and electrically connect.
10. portable terminal according to claim 9, wherein, the preset distance is less than in first antenna or metal frame 1/4 wavelength of the resonant frequency of at least one Part I of frame.
11. portable terminals according to claim 1, wherein, at least one Part II has than at first day The small length of 1/4 wavelength of the resonant frequency of at least one Part I of line or metal framework.
12. portable terminals according to claim 1, wherein, first antenna is configured to logical in CDMA and individual The frequency band of one in telecommunications services sends and receives signal.
13. portable terminals according to claim 1, wherein, first antenna is arranged on the top or bottom of mainboard.
14. portable terminals according to claim 1, wherein, first antenna is attached to be fixed to the carrier of mainboard Type and any one type being arranged in the type on mainboard.
15. portable terminals according to claim 1, wherein, at least one Part II is electrically connected to mainboard Earthed surface.
16. portable terminals according to claim 1, wherein, first antenna is disposed proximate to the described of metal framework At least one Part I.
17. portable terminals according to claim 1, wherein, at least one Part I be individually substantially Linear section, with opposed end, and separates in each end of the opposed end with least one Part II Certain space.
18. portable terminals according to claim 17, the portable terminal also includes being arranged in case frame At least one second antennas, wherein,
An end substantially in the opposed end of linear section is electrically connected to first antenna by attachment means,
Another end substantially in the opposed end of linear section by another attachment means be electrically connected to it is described at least One the second antenna.
A kind of 19. portable terminals, including：
Metal framework, is configured to define a part for the case frame of the outside of portable terminal, and be divided at least one Part I and at least one Part II, at least one Part I are electrically connected to first antenna, described at least one Part II is separated with least one Part I,
Metal framework essentially around portable terminal whole periphery,
At least one Part I includes the section with left part and right part, the left part and described at least one the The first end of two parts separates the first space, and it is empty that the right part separates second with the second end of at least one Part II Between, at least one Part I receiving surface electric current is radiated with together with first antenna,
At least one Part II is in the earthed surface that mainboard is electrically connected to a little less place along the periphery.
20. portable terminals according to claim 19, wherein, each in the first space and second space is to cut empty Between, due to along being electrically connected to ground surface to a little less place described in the periphery, and prevent described at least one second Partial radiation.
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