阅读说明：本技术 一种终端设备天线装置及实现方法 (A kind of terminal device antenna assembly and implementation method ) 是由 周闯柱 王小明 翁子彬 于 2018-05-23 设计创作，主要内容包括：本发明公开了一种终端设备天线装置及实现方法,涉及天线领域,所述方法包括：在终端设备主板的金属地上划分出用于平衡金属地电流的全封闭非金属区域；在所划分的全封闭非金属区域内布置天线拓扑单元；所述天线拓扑单元在利用所述终端设备主板提供的射频信号,得到工作电流,并将所述工作电流耦合到所述金属地,利用局域谐振多阶回波差分抑制方式,实现宽带阻抗匹配。本发明实施例解决了现有技术中无法在有限尺寸下多个宽频段同时实现工作的技术问题,同时大大提高电磁兼容特性。(The invention discloses a kind of terminal device antenna assembly and implementation methods, are related to field of antenna, which comprises mark off the totally-enclosed non-metallic regions for budget metals earth-current on the ground in the metal of terminal device mainboard；Antenna topology unit is arranged in the totally-enclosed non-metallic regions divided；The antenna topology unit obtains operating current, and with being coupled to the metal by the operating current in the radiofrequency signal provided using the terminal device mainboard, using the multistage echo difference suppressor mode of local resonance, realizes wideband impedance match.The embodiment of the present invention solve in the prior art can not under finite size multiple wide-bands while the technical issues of realize work, while greatly improving electromagnetic compatibility characteristic.)

1. a kind of implementation method of terminal device antenna assembly characterized by comprising

The totally-enclosed non-metallic regions for budget metals earth-current are marked off on the ground in the metal of terminal device mainboard；

Antenna topology unit is arranged in the totally-enclosed non-metallic regions divided；

The antenna topology unit generates operating current in the radiofrequency signal provided using the terminal device mainboard, and by institute It states operating current with being coupled to the metal, using the multistage echo difference suppressor mode of local resonance, realizes wideband impedance match.

2. the method according to claim 1, wherein the terminal device mainboard has at least two layer printed circuits Layer, the metal in terminal device mainboard mark off the totally-enclosed non-metallic regions packet for budget metals earth-current on the ground It includes:

Totally-enclosed non-metallic regions are marked off on the ground in the metal of every layer printed circuit layer of the terminal device mainboard.

3. according to the method described in claim 2, it is characterized in that, described arrange in the totally-enclosed non-metallic regions divided Antenna topology unit includes:

The antenna topology unit is arranged in the totally-enclosed non-metallic regions on the metal ground of at least one layer of layer printed circuit board.

4. method according to claim 1 to 3, which is characterized in that the antenna topology unit includes: and institute State the second radiator between terminal device mainboard there are first radiator in gap, for generating the operating current, third Radiator, the 4th radiator and lamped element, the antenna topology unit are penetrated what is provided using the terminal device mainboard Frequency signal obtains operating current, and with being coupled to the metal by the operating current, utilizes the multistage echo difference of local resonance Suppressor mode realizes that wideband impedance match includes:

During the antenna topology unit is in local resonant state, by second radiator, first radiator and The equivalent network that 4th radiator is formed generates echo-signal, by the third radiator, the lamped element, the gold The equivalent network that possession and second radiator are formed generates reflection signal；

Difference counteracting processing is carried out to the echo-signal and the reflection signal, obtains differential signal, and utilize the first radiation Body absorbs the differential signal, to realize wideband impedance match.

5. according to the method described in claim 4, it is characterized by further comprising:

Between the upper arrangement of at least one of described first radiator to the 4th radiator and the terminal device mainboard There are the first metal Coupling pieces in gap, pass through the seam between the first metal Coupling piece and the terminal device mainboard Gap couples the first metal Coupling piece with the terminal device mainboard；And/or

There are gaps between the non-metallic regions arrangement for not arranging the antenna topology unit and the terminal device mainboard Second metal Coupling piece will be described by the gap between the second metal Coupling piece and the terminal device mainboard Second metal Coupling piece is coupled with the terminal device mainboard.

6. a kind of terminal device antenna assembly characterized by comprising

Metal, it is located on terminal device mainboard, there are the totally-enclosed non-metallic regions for budget metals earth-current；

Antenna topology unit is arranged in the totally-enclosed non-metallic regions, for providing using the terminal device mainboard Radiofrequency signal, generate operating current, and with being coupled to the metal by the operating current, utilize the multistage echo of local resonance Difference suppressor mode realizes wideband impedance match.

7. device according to claim 6, which is characterized in that the terminal device mainboard has at least two layer printed circuits The metal of layer, every layer printed circuit layer all has totally-enclosed non-metallic regions on the ground.

8. device according to claim 7, which is characterized in that the antenna topology unit is arranged at least one layer of printing electricity The totally-enclosed non-metallic regions on the metal ground of road floor.

9. device according to claim 6, which is characterized in that the antenna topology unit includes: and the terminal device The second radiator, third radiator, the 4th between mainboard there are first radiator in gap, for generating the operating current Radiator and lamped element, wherein during the antenna topology unit is in local resonant state, by second spoke The equivalent network that beam, first radiator and the 4th radiator are formed generates echo-signal, is radiated by the third Body, the lamped element, the metal and second radiator formed equivalent network generate reflection signal, to described time Wave signal and the reflection signal carry out difference counteracting processing, obtain differential signal, and utilize the first radiator, absorb the difference Sub-signal, to realize wideband impedance match.

10. device according to claim 9, which is characterized in that further include:

First metal Coupling piece is arranged at least one of described first to fourth radiator, with the terminal device Exist between mainboard and have the gap, for by the gap between the terminal device mainboard, realization to be set with the terminal The coupling of standby mainboard；And/or

Second metal Coupling piece is arranged in the non-metallic regions for not arranging the antenna topology unit, and sets with the terminal Exist between standby mainboard and have the gap, for realizing and the terminal by the gap between the terminal device mainboard Two secondary couplings of equipment mainboard.

Technical field

The present invention relates to field of antenna, in particular to a kind of terminal device antenna assembly and implementation method.

Background technique

Existing mobile radio terminal mostly uses greatly monopole antenna, planar inverted-F antenna (Planar Inverted-F Antenna, PIFA), the antennas of the types such as loop aerial.Frequency range of the these antenna to covering needed for meeting, physical size Can be very big, and wherein the bandwidth of single type antenna cannot reach the job requirement of mobile radio terminal communication.Currently, for The Antenna Design for covering long term evolution (Long Term Evolution, LTE) frequency range, does not require nothing more than the return loss of antenna And the antenna performances such as gain and efficiency are good, but also require the size of antenna as small as possible.According to Principle of Antenna it is found that tradition Antenna size need to reach operation wavelength half or a quarter could resonant operational, this for original volume compared with It is difficult to find suitable space for small mobile radio terminal and places these antenna, so traditional antenna form is not able to satisfy Requirement of the wireless data transmission to antenna.Therefore, how small volume mobile radio terminal guarantee antenna have miniaturization And high performance working condition is a problem to be solved.

Summary of the invention

A kind of terminal device antenna assembly provided in an embodiment of the present invention and implementation method, solving in the prior art can not be The problem of multiple wide-bands realize work simultaneously under finite size.

A kind of implementation method of the terminal device antenna assembly provided according to embodiments of the present invention, comprising:

The totally-enclosed non-metallic regions for budget metals earth-current are marked off on the ground in the metal of terminal device mainboard；

Antenna topology unit is arranged in the totally-enclosed non-metallic regions divided；

The antenna topology unit generates operating current in the radiofrequency signal provided using the terminal device mainboard, and With being coupled to the metal by the operating current, using the multistage echo difference suppressor mode of local resonance, broadband impedance is realized Matching.

Preferably, the terminal device mainboard has at least two layers of layer printed circuit board, the gold in terminal device mainboard It is marked off on possession and includes: for the totally-enclosed non-metallic regions of budget metals earth-current

Totally-enclosed non-metallic regions are marked off on the ground in the metal of every layer printed circuit layer of the terminal device mainboard.

Preferably, described to arrange that antenna topology unit includes: in the totally-enclosed non-metallic regions divided

The antenna topology unit is arranged in the totally-enclosed non-metallic regions on the metal ground of at least one layer of layer printed circuit board.

Preferably, the antenna topology unit includes: the first radiation between the terminal device mainboard there are gap Body, the second radiator for generating the operating current, third radiator, the 4th radiator and lamped element, the day Line topology unit obtains operating current in the radiofrequency signal provided using the terminal device mainboard, and by the operating current During being coupled to the metal ground, using the multistage echo difference suppressor mode of local resonance, realize that wideband impedance match includes:

During the antenna topology unit is in local resonant state, by second radiator, first radiation The equivalent network that body and the 4th radiator are formed generates echo-signal, by the third radiator, the lamped element, institute With stating metal and the equivalent network of second radiator formation generates reflection signal；

Difference counteracting processing is carried out to the echo-signal and the reflection signal, obtains differential signal, and utilize first Radiator absorbs the differential signal, to realize wideband impedance match.

Preferably, further includes:

In the upper arrangement of at least one of described first radiator to the 4th radiator and the terminal device mainboard Between there are the first metal Coupling piece in gap, pass through the institute between the first metal Coupling piece and the terminal device mainboard Gap is stated, the first metal Coupling piece is coupled with the terminal device mainboard；And/or

There is seam between the non-metallic regions arrangement for not arranging the antenna topology unit and the terminal device mainboard Second metal Coupling piece of gap will by the gap between the second metal Coupling piece and the terminal device mainboard The second metal Coupling piece is coupled with the terminal device mainboard.

A kind of terminal device antenna assembly provided according to embodiments of the present invention, comprising:

Metal, it is located on terminal device mainboard, there are the totally-enclosed non-metallic regions for budget metals earth-current；

Antenna topology unit is arranged in the totally-enclosed non-metallic regions, for utilizing the terminal device mainboard The radiofrequency signal of offer generates operating current, and with being coupled to the metal by the operating current, multistage using local resonance Echo difference suppressor mode realizes wideband impedance match.

Preferably, the terminal device mainboard has at least two layers of layer printed circuit board, the metal of every layer printed circuit layer On all have totally-enclosed non-metallic regions.

Preferably, the antenna topology unit is arranged in the totally-enclosed nonmetallic of the metal ground of at least one layer of layer printed circuit board Region.

Preferably, the antenna topology unit includes: the first radiation between the terminal device mainboard there are gap Body, the second radiator for generating the operating current, third radiator, the 4th radiator and lamped element, wherein During the antenna topology unit is in local resonant state, by second radiator, first radiator and described The equivalent network that 4th radiator is formed generates echo-signal, by the third radiator, the lamped element, the metal Reflection signal is generated with the equivalent network that second radiator is formed, it is poor to carry out to the echo-signal and the reflection signal Divide counteracting processing, obtains differential signal, and utilize the first radiator, the differential signal is absorbed, to realize broadband impedance Match.

Preferably, further includes:

First metal Coupling piece is arranged at least one of described first to fourth radiator, with the terminal Exist between equipment mainboard and have the gap, for realizing and the end by the gap between the terminal device mainboard The coupling of end equipment mainboard；And/or

Second metal Coupling piece, is arranged in the non-metallic regions for not arranging the antenna topology unit, and with the end Exist between end equipment mainboard and have the gap, for by the gap between the terminal device mainboard, realize with it is described Two secondary couplings of terminal device mainboard.

Technical solution provided in an embodiment of the present invention has the following beneficial effects:

Miniaturization terminal device antenna assembly provided in an embodiment of the present invention is to can satisfy terminal device covering LTE full range Section PCB printing miniaturization wireless terminal antenna device, be able to solve in the prior art can not under finite size multiple width The technical issues of frequency range realizes work simultaneously, while greatly improving electromagnetic compatibility characteristic.

Detailed description of the invention

Fig. 1 is the implementation method flow chart of terminal device antenna assembly provided in an embodiment of the present invention；

Fig. 2 is the attachment structure schematic diagram of wireless terminal and antenna assembly provided in an embodiment of the present invention；

Fig. 3 is the structural schematic diagram of the antenna assembly for the terminal device that embodiment of the present invention provides；

Fig. 4 is the first terminal device antenna structure view that embodiment of the present invention provides；

Fig. 5 is second of terminal device antenna structure view that embodiment of the present invention provides；

Fig. 6 is the third terminal device antenna structure view that embodiment of the present invention provides；

Fig. 7 is the equivalent circuit diagram for the terminal device that embodiment of the present invention provides；

Fig. 8 is S11 Parameter Map when being applied in wireless terminal antenna that embodiment of the present invention provides；

Fig. 9 be embodiment of the present invention provide be applied to radiation efficiency figure when in wireless terminal antenna.

Specific embodiment

Below in conjunction with attached drawing to a preferred embodiment of the present invention will be described in detail, it should be understood that described below is excellent Select embodiment only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.

Fig. 1 is the implementation method flow chart of terminal device antenna assembly provided in an embodiment of the present invention, as shown in Figure 1, step Suddenly include:

Step S101: the totally-enclosed non-gold for budget metals earth-current is marked off on the ground in the metal of terminal device mainboard Belong to region.

Step S101 includes: that the terminal device mainboard has at least two layers of layer printed circuit board, in the terminal device master The metal of every layer printed circuit layer of plate marks off totally-enclosed non-metallic regions on the ground.For example, if terminal device mainboard has There are top layer and bottom two-tier circuit layer, then marks off totally-enclosed non-metallic areas on the ground in the metal of the terminal device mainboard top layer Domain, and totally-enclosed non-metallic regions are marked off on the ground in the metal of the terminal device mainboard bottom.If terminal device mainboard Top layer and bottom between also there is internal layer (at least one layer), side also marks off totally-enclosed non-gold in every layer of metal ground of internal layer Belong to region.

Step S102: antenna topology unit is arranged in the totally-enclosed non-metallic regions divided.

Step S102 include: in the totally-enclosed non-metallic regions on the metal ground of at least one layer of layer printed circuit board arrangement described in Antenna topology unit.For example, in the totally-enclosed non-metallic regions on top-level metallic ground and/or the totally-enclosed non-gold on underlying metal ground Belong in region and/or arrange in the totally-enclosed non-metallic regions on inner layer metal ground the antenna topology unit.

The antenna topology unit include: between the terminal device mainboard there are first radiator in gap, be used for Generate the second radiator, third radiator, the 4th radiator and the lamped element of the operating current.

Step S103: the antenna topology unit generates work in the radiofrequency signal provided using the terminal device mainboard Make electric current, and with being coupled to the metal by the operating current, using the multistage echo difference suppressor mode of local resonance, realizes Wideband impedance match.

Step S103 include: during the antenna topology unit is in local resonant state, by second radiator, The equivalent network that first radiator and the 4th radiator are formed generates echo-signal, by the third radiator, institute With stating lamped element, the metal and the equivalent network of second radiator formation generates reflection signal；The echo is believed Number and the reflection signal carry out difference counteracting processing, obtain differential signal, and utilize the first radiator, absorb the difference and believe Number, to realize wideband impedance match.

The method also includes: in the upper arrangement of at least one of described first radiator to the 4th radiator and institute The first metal Coupling piece between terminal device mainboard there are gap is stated, is set by the first metal Coupling piece with the terminal The gap between standby mainboard, the first metal Coupling piece is coupled with the terminal device mainboard；And/or not Arrange that there are second metals in gap between the non-metallic regions arrangement of the antenna topology unit and the terminal device mainboard Coupling piece, by the gap between the second metal Coupling piece and the terminal device mainboard, by second metal Coupling piece is coupled with the terminal device mainboard.

The radiation areas of the terminal antenna of the embodiment of the present invention are totally-enclosed region, affected by environment small, metal earth-current Balanced balanced current is presented, radiation characteristic is good." O " Shape closed circuit ratio " C " shape loop current path ohmage is small, and small, spoke is lost It penetrates high-efficient.The anti-ESD of full-closed structure (static discharge) works well.

The radiating antenna headroom of the embodiment of the present invention is small, and headroom is about 0.05 λ, 0.025 λ (lowest operating frequency 698MHz), Far smaller than 1/4 wavelength meets LTE698-960MHz&1710-2690MHz working band.

The embodiment of the invention also provides a kind of terminal device antenna assemblies, comprising:

Metal, it is located on terminal device mainboard, there are the totally-enclosed non-metallic regions for budget metals earth-current.Institute Terminal device mainboard is stated at least two layers of layer printed circuit board, the metal of every layer printed circuit layer all has totally-enclosed non-gold on the ground Belong to region.For example, metal specifically include positioned at the terminal device mainboard top layer layer printed circuit board top-level metallic and position In the underlying metal of the terminal device mainboard base printed circuit layer, the top-level metallic and the underlying metal it is equal With totally-enclosed non-metallic regions.If the terminal device mainboard has two layers or more layer printed circuit board, i.e. top layer and bottom Between there are internal layer (its have at least one layer of layer printed circuit board), then further include to metal the interior of every layer printed circuit layer of internal layer Layer metal.

Antenna topology unit is arranged in the totally-enclosed non-metallic regions, can specifically be arranged in the top-level metallic The totally-enclosed non-metallic regions on ground and/or the totally-enclosed non-metallic regions on underlying metal ground, for utilizing the terminal The radiofrequency signal that equipment mainboard provides generates operating current, and with being coupled to the metal by the operating current, utilizes local The multistage echo difference suppressor mode of resonance realizes wideband impedance match.The antenna topology unit is arranged at least one layer of printing The totally-enclosed non-metallic regions on the metal ground of circuit layer, such as the totally-enclosed non-metallic regions on top-level metallic ground are set, or Totally-enclosed non-metallic regions and the totally-enclosed non-metallic regions on inner layer metal ground etc. on top-level metallic ground are set.Wherein, described Antenna topology unit includes: between the terminal device mainboard there are first radiator in gap, for generating the work The second radiator, third radiator, the 4th radiator and the lamped element of electric current, wherein at the antenna topology unit During local resonant state, formed by second radiator, first radiator and the 4th radiator equivalent Network generate echo-signal, by the third radiator, the lamped element, the metal and second radiator formed Equivalent network generate reflection signal, to the echo-signal and the reflection signal progress difference counteracting processing, obtain difference Signal, and the first radiator is utilized, the differential signal is absorbed, to realize wideband impedance match.

Further, further includes:

First metal Coupling piece is arranged at least one of described first to fourth radiator, with the terminal Exist between equipment mainboard and have the gap, for realizing and the end by the gap between the terminal device mainboard The coupling of end equipment mainboard；And/or

Second metal Coupling piece, is arranged in the non-metallic regions for not arranging the antenna topology unit, and with the end Exist between end equipment mainboard and have the gap, for by the gap between the terminal device mainboard, realize with it is described Two secondary couplings of terminal device mainboard.

The application of the antenna assembly of the embodiment of the present invention is set forth below, the antenna assembly of the embodiment of the present invention is answered For mainboard for terminal wireless end product.

Fig. 2 is the attachment structure schematic diagram of wireless terminal and antenna assembly provided in an embodiment of the present invention, and Fig. 3 is the present invention The structural schematic diagram of the antenna assembly for the terminal device that embodiment provides, as shown in Figures 2 and 3.

The antenna assembly of the terminal device is used for notebook, PC machine, on the wireless terminal product of the digital products such as PAD.Nothing The interface of line terminal can be USB interface, pcmcia interface (PC memory card interface), Express interface or other electronic equipments Interface.

Wireless terminal includes mainboard 12 and USB interface 3, passes through the USB interface 3 and notebook of end, PC machine etc. when use Equipment is connected.The mainboard 12 of wireless terminal product is bilayer copper clad dielectric-slab, and material is nonmetallic materials, wireless terminal product There are a piece of top layer non-metallic regions 4 and bottom non-metallic regions 5 to leave antenna topology unit 9 among mainboard.It is removed on mainboard non- The remaining region of metallic region is for metal.And the metal of wireless terminal product top layer and bottom will altogether.Antenna area Size be 11mm × 21mm × 2mm.