CN105006628A - Sensitive and capacitive member series connection loading reconfigurable portable mobile communication device antenna - Google Patents
Sensitive and capacitive member series connection loading reconfigurable portable mobile communication device antenna Download PDFInfo
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- CN105006628A CN105006628A CN201510381065.XA CN201510381065A CN105006628A CN 105006628 A CN105006628 A CN 105006628A CN 201510381065 A CN201510381065 A CN 201510381065A CN 105006628 A CN105006628 A CN 105006628A
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Abstract
The invention relates to a sensitive and capacitive member series connection loading reconfigurable portable mobile communication device antenna. The low frequency and high frequency of the antenna can be reconfigured and debugged independently. The antenna comprises a low-frequency band antenna arm, a high-frequency band antenna arm, a low-frequency band sensitive and capacitive member series connection loading network, a high-frequency band sensitive and capacitive member series connection loading network, a low-frequency band parallel connection grounding device and a high-frequency band antenna parallel connection grounding device. The low-frequency band antenna arm and the high-frequency band antenna arm point to opposite directions. A feeding point is located between the low-frequency band antenna arm and the high-frequency band antenna arm. The low-frequency band sensitive and capacitive member series connection loading network and the high-frequency band sensitive and capacitive member series connection loading network comprise micro-electro-mechanical systems respectively. Through the antenna, a portable mobile communication device has a broadband characteristic, covers a 4G-LTE frequency range, a low-frequency band antenna resonant frequency and a high-frequency band resonant frequency are tuned independently, and the antenna can be applied in various portable mobile communication device terminals widely.
Description
Technical field
The invention belongs to portable mobile communication device antenna technical field, be specifically related to a kind of perceptual capacitive device loaded in series restructural portable mobile communication device antenna.
Background technology
Along with the development of mobile communication technology, 4G is more and more general.Bandwidth required for existing portable mobile communication equipment is also more and more wider.From low frequency 136MHz bandwidth (824MHz ~ 960MHz), the high frequency 280MHz bandwidth (1710MHz ~ 1990MHz) in 2G epoch, expand to the low frequency 261MHz bandwidth (699MHz ~ 960MHz) in 4G epoch, high frequency 980MHz bandwidth (1710MHz ~ 2690MHz).When mobile phone overall structure changes little, antenna scheme realizes, and to meet so wide bandwidth, this is the difficult point of pendulum in each large cellular telephone companies.
Summary of the invention
The object of the invention is to solve above-mentioned technical problem and a kind of perceptual capacitive device loaded in series restructural portable mobile communication device antenna is provided.
For achieving the above object, the present invention adopts following technical scheme:
A kind of perceptual capacitive device loaded in series restructural portable mobile communication device antenna, comprise its low-frequency range and high band antenna resonant frequency independent tuning, comprise low-frequency range antenna arm, high band antenna arm, low-frequency range restructural matching network, high band restructural matching network, low-frequency range are parallel to ground device, high band is parallel to ground device and printed wiring board;
Described low-frequency range antenna arm and high band antenna arm are distinguished directed in opposite directions;
One end of described low-frequency range perception capacitive device loaded in series network is connected with the antenna arm of described low-frequency range, the other end is connected with described distributing point part;
One end of described high band perception capacitive device loaded in series network is connected with the antenna arm of described high band, the other end is connected with described feed part;
Described low-frequency range is parallel to that device one end, ground is connected with the antenna arm of described low-frequency range, the other end is connected with described distributing point part;
Described high band is parallel to that device one end, ground is connected with the antenna arm of described high band, the other end is connected with described distributing point part;
One end and the described printed wiring board of the distributing point of described antenna are connected and fixed, and between described low-frequency range antenna arm and described high band antenna arm, simultaneously also between described low-frequency range perception capacitive device loaded in series network and described high band perception capacitive device loaded in series network;
Described low-frequency range perception capacitive device loaded in series network and described high band perception capacitive device loaded in series network all include MEMS (micro electro mechanical system), low insertion loss, low parasitic capacitance, the low on-resistance of described MEMS (micro electro mechanical system) restructural matching network, comprise micro-inductance and or micro-electric capacity, described micro-inductance and or micro-electric capacity there is multiple different induction value and capacitance, described micro-inductance and or micro-electric capacity between there is high-isolation.
Described low-frequency range perception capacitive device loaded in series network comprises low-frequency range inductance MEMS (micro electro mechanical system), and described high band perception capacitive device loaded in series network comprises high band inductance MEMS (micro electro mechanical system); One end of described low-frequency range inductance MEMS (micro electro mechanical system) is connected with the antenna arm of described low-frequency range, the other end is connected with described distributing point part; One end of described high band inductance MEMS (micro electro mechanical system) is connected with the antenna arm of described high band, the other end is connected with described distributing point part.
Described low-frequency range perception capacitive device loaded in series network comprises low-frequency range electric capacity MEMS (micro electro mechanical system), and described high band perception capacitive device loaded in series network comprises high band electric capacity MEMS (micro electro mechanical system); One end of described low-frequency range electric capacity MEMS (micro electro mechanical system) is connected with the antenna arm of described low-frequency range, the other end is connected with described distributing point part; One end of described high band electric capacity MEMS (micro electro mechanical system) is connected with the antenna arm of described high band, the other end is connected with described distributing point part.
Described low-frequency range is parallel to ground device, high band and is parallel to ground device and comprises that low-frequency range is parallel to ground inductance, high band is parallel to ground inductance respectively.
The antenna arm of described low-frequency range and the antenna arm of high band adopt metalwork to be formed.
The antenna arm of described low-frequency range forms the metal end of antenna together with the antenna arm of high band.
Described printed wiring board is connected with the metal shell of portable mobile apparatus.
The specification of described printed wiring board is 135mm × 80mm.
The present invention's perception capacitive device loaded in series restructural portable mobile communication device antenna, successfully solve 4G-LTE(Long Term Evolution, Long Term Evolution) the broadband requirement of frequency range, low-frequency range and high band antenna resonant frequency independent tuning, can be widely used in various portable mobile communication device end.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment of the present invention;
Fig. 2 is the circuit catenation principle figure of the first embodiment of the present invention;
Fig. 3 is second embodiment of the present invention Facad structure schematic diagram;
Fig. 4 is second embodiment of the present invention structure schematic diagram;
Fig. 5 is second embodiment of the present invention side structure schematic diagram;
Fig. 6 be inventive antenna with the bandwidth expansion of original antenna compare schematic diagram;
Fig. 7 is the change schematic diagram that the present invention adjusts low frequency and high frequency reconstruct matching network Time Bandwidth and inductance value;
Fig. 8 is third embodiment of the present invention Facad structure schematic diagram;
Fig. 9 is third embodiment of the present invention structure schematic diagram;
Figure 10 is third embodiment of the present invention side structure schematic diagram;
In figure: the antenna arm of 1-low-frequency range, the antenna arm of 2-high band, 3-low-frequency range perception capacitive device loaded in series network, 4-high band perception capacitive device loaded in series network, 5-printed wiring board, 6-distributing point, 7-low-frequency range is parallel to ground device, 8-high band is parallel to ground device, 9-low-frequency range inductance MEMS (micro electro mechanical system), 10-high band inductance MEMS (micro electro mechanical system), 11-low-frequency range are parallel to ground inductance, 12-high band is parallel to ground inductance; 13-low-frequency range electric capacity MEMS (micro electro mechanical system), 14, high band electric capacity MEMS (micro electro mechanical system).
Embodiment
Below, in conjunction with example, substantive distinguishing features of the present invention and advantage are further described, but the present invention is not limited to listed embodiment.
Embodiment one
Refer to Fig. 1 ~ 2, a kind of perceptual capacitive device loaded in series restructural portable mobile communication device antenna, comprises the antenna arm 1 of low-frequency range, the antenna arm 2 of high band, low-frequency range perception capacitive device loaded in series network 3, high band perception capacitive device loaded in series network 4, printed wiring board 5, distributing point 6, low-frequency range is parallel to ground device 7, high band is parallel to ground device 8; The antenna arm 1 of the low-frequency range that metalwork is made and the antenna arm 2 of high band form the metal end of antenna, and printed wiring board 5 and portable mobile apparatus metal shell are integrally connected.The metal end that wherein antenna arm 1 of low-frequency range and the antenna arm 2 of high band form can select the complete metal such as copper, aluminium part to be formed.
See Fig. 2, low-frequency range perception capacitive device loaded in series network 3 one end is connected with the antenna arm 1 of low-frequency range, and the other end is connected with distributing point 6 part; High band perception capacitive device loaded in series network 4 one end is connected with the antenna arm 2 of high band, the other end is connected with distributing point 6 part, and described low-frequency range is parallel to that device 7 one end, ground is connected with the antenna arm 1 of described low-frequency range, the other end is connected with described distributing point 6 part; Described high band is parallel to that device 8 one end, ground is connected with the antenna arm 2 of described high band, the other end is connected with described distributing point 6 part; Distributing point 6 between low-frequency range antenna arm and high band antenna arm, simultaneously also between low-frequency range perception capacitive device loaded in series network and high band perception capacitive device loaded in series network.
Distributing point 6 one end of antenna is fixed on one end of portable terminal printed wiring board pcb board.
The area of portable terminal printed wiring board pcb board can be 135mm × 80mm.
Wherein, low-frequency range perception capacitive device loaded in series network and high band perception capacitive device loaded in series network, all comprise the MEMS (micro electro mechanical system) (MEMS of various inductance value and capacitance, Micro-Electro-Mechanical System), to ensure high-isolation between each small inductance electric capacity, the low insertion loss of reconfigurable network, low parasitic capacitance, low on-resistance.
Embodiment two
See Fig. 3 ~ 5, this antenna includes complete metal end, the low-frequency range inductance MEMS (micro electro mechanical system) (MEMS of the antenna arm 1 of the low-frequency range that metalwork makes and antenna arm 2 composition of high band, Micro-Electro-Mechanical System) 9, high band inductance MEMS (micro electro mechanical system) (MEMS, Micro-Electro-Mechanical System) 10, printed wiring board 5, distributing point 6, low-frequency range be parallel to ground inductance 11, high band is parallel to ground inductance 12.
Wherein, the metal end that the antenna arm 1 of low-frequency range and the antenna arm 2 of high band form can select the complete metal such as copper, aluminium part to be formed.
Low-frequency range inductance MEMS (micro electro mechanical system) (MEMS, Micro-Electro-Mechanical System) 9 by the MEMS (micro electro mechanical system) (MEMS of inductive (0.2nH ~ 15nH), Micro-Electro-Mechanical System) composition, one end is connected with the antenna arm 1 of low-frequency range, and the other end is connected with distributing point 6 part.
High band inductance MEMS (micro electro mechanical system) (MEMS, Micro-Electro-Mechanical System) 8 by the MEMS (micro electro mechanical system) (MEMS of inductive (0.2nH ~ 10nH), Micro-Electro-Mechanical System) composition, one end is connected with the antenna arm 2 of high band, and the other end is connected with distributing point 6 part.
Wherein, described low-frequency range is parallel to that inductance 11 one end, ground is connected with the antenna arm 1 of described low-frequency range, the other end is connected with described distributing point 6 part; Described high band is parallel to that inductance 12 one end, ground is connected with the antenna arm 2 of described high band, the other end is connected with described distributing point 6 part.
Distributing point 6 between the antenna arm 1 and the antenna arm 2 of high band of low-frequency range, simultaneously also between low-frequency range perception capacitive device loaded in series network and high band perception capacitive device loaded in series network.
Distributing point 6 one end of antenna is fixed on portable terminal printed wiring board 5(PCB plate) one end.
The area of portable terminal printed wiring board pcb board can be 135mm × 80mm.
Antenna described in embodiment two is tested, experimental result shows, adopt perceptual capacitive device loaded in series restructural portable mobile communication device antenna, under same surface structure size and same Anneta module size condition, compare with the original antenna under same Anneta module size condition with same surface structure size, can be easy to allow low-frequency range bandwidth sum high band bandwidth expansion 50%, and the space further expanding bandwidth is very large, successfully meet the requirement of wideband antenna, shown in Figure 6, top laterally value represents frequency change, left side longitudinally value represents return loss (Return Loss).
Antenna described in embodiment two is tested, experimental result shows, adopt perceptual capacitive device loaded in series restructural portable mobile communication device antenna, low-frequency range antenna arm and high band antenna arm are distinguished directed in opposite directions, distributing point is between low-frequency range antenna arm and high band antenna arm, and low frequency and high frequency performance independently reconstruct debugging.During adjustment low-frequency range perception capacitive device series network, change inductance value, from 0.2nH to 20nH, the relative bandwidth change of low-frequency range is 4.1 times of the relative bandwidth change of high band; During adjustment high band perception capacitive device series network, change inductance value, from 0.2nH to 10nH, the relative bandwidth change of high band is 6.1 times of the relative bandwidth change of low-frequency range.Between low frequency high frequency can independent debug performance very good, in Fig. 7, low frequency refers to when low frequency inductive capacitive device series network inductance changes, the bandwidth change of low frequency frequency range, high frequency _ follow-up refers to when low frequency inductive capacitive device series network inductance changes, the bandwidth change of high-frequency band, high frequency refers to when the series network inductance change of high frequency perception capacitive device, the bandwidth change of high-frequency band, low frequency _ follow-up refers to when the series network inductance change of high frequency perception capacitive device, the bandwidth change of low frequency frequency range.Shown in Figure 7, below lateral coordinates represents that perceptual capacitive device series network inductance value changes, and along slope coordinate represents that bandwidth changes.
Embodiment three
See Fig. 8 ~ 10, this antenna includes complete metal end, the low-frequency range electric capacity MEMS (micro electro mechanical system) (MEMS of the antenna arm 1 of the low-frequency range that metalwork makes and antenna arm 2 composition of high band, Micro-Electro-Mechanical System) 13, high band electric capacity MEMS (micro electro mechanical system) (MEMS, Micro-Electro-Mechanical System) 14, printed wiring board 5, distributing point 6, low-frequency range be parallel to ground inductance 11, high band is parallel to ground inductance 12.
Wherein, the metal end that the antenna arm 1 of low-frequency range and the antenna arm 2 of high band form can select the complete metal such as copper, aluminium part to be formed.
Low-frequency range electric capacity MEMS (micro electro mechanical system) (MEMS, Micro-Electro-Mechanical System) 13 by capacitive MEMS (micro electro mechanical system) (MEMS, Micro-Electro-Mechanical System) composition, one end is connected with the antenna arm 1 of low-frequency range, and the other end is connected with distributing point 6 part.
High band electric capacity MEMS (micro electro mechanical system) (MEMS, Micro-Electro-Mechanical System) 14 by capacitive MEMS (micro electro mechanical system) (MEMS, Micro-Electro-Mechanical System) composition, one end is connected with the antenna arm 2 of high band, and the other end is connected with distributing point 6 part.
Wherein, described low-frequency range is parallel to that inductance 11 one end, ground is connected with the antenna arm 1 of described low-frequency range, the other end is connected with described distributing point 6 part; Described high band is parallel to that inductance 12 one end, ground is connected with the antenna arm 2 of described high band, the other end is connected with described distributing point 6 part.
Distributing point 6 between the antenna arm 1 and the antenna arm 2 of high band of low-frequency range, simultaneously also between low-frequency range perception capacitive device loaded in series network and high band perception capacitive device loaded in series network.
Distributing point 6 one end of antenna is fixed on portable terminal printed wiring board 5(PCB plate) one end.
The area of portable terminal printed wiring board pcb board can be 135mm × 80mm.
The present invention's perception capacitive device loaded in series restructural portable mobile communication device antenna, successfully solve 4G-LTE(Long Term Evolution, Long Term Evolution) the broadband requirement of frequency range, low-frequency range and high band antenna resonant frequency independent tuning, can be widely used in various portable mobile communication device end.
The above is only the preferred embodiment 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 make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. perceptual capacitive device loaded in series restructural portable mobile communication device antenna, it is characterized in that, its low-frequency range and high band antenna resonant frequency independent tuning, comprise low-frequency range antenna arm, high band antenna arm, low-frequency range perception capacitive device loaded in series network, high band perception capacitive device loaded in series network, low-frequency range be parallel to ground device, high band is parallel to ground device and printed wiring board;
Described low-frequency range antenna arm and high band antenna arm are distinguished directed in opposite directions;
Described low-frequency range perception capacitive device loaded in series network is as a part for low-frequency range antenna, and one end is connected with the antenna arm of described low-frequency range, the other end is connected with distributing point part;
Described high band perception capacitive device loaded in series network is as a part for low-frequency range antenna, and one end is connected with the antenna arm of described high band, the other end is connected with distributing point part;
Described low-frequency range is parallel to that device one end, ground is connected with the antenna arm of described low-frequency range, the other end is connected with described distributing point part;
Described high band is parallel to that device one end, ground is connected with the antenna arm of described high band, the other end is connected with described distributing point part;
One end and the described printed wiring board of the distributing point of described antenna are connected and fixed, and between described low-frequency range antenna arm and described high band antenna arm, simultaneously also between described low-frequency range perception capacitive device loaded in series network and described high band perception capacitive device loaded in series network;
Described low-frequency range perception capacitive device loaded in series network and described high band perception capacitive device loaded in series network all include MEMS (micro electro mechanical system), low insertion loss, low parasitic capacitance, the low on-resistance of described MEMS (micro electro mechanical system) restructural matching network, comprise micro-inductance and or micro-electric capacity, described micro-inductance and or micro-electric capacity there is multiple different induction value and capacitance, described micro-inductance and or micro-electric capacity between there is high-isolation.
2. perceptual capacitive device loaded in series restructural portable mobile communication device antenna according to claim 1, it is characterized in that, described low-frequency range perception capacitive device loaded in series network comprises low-frequency range inductance MEMS (micro electro mechanical system), and described high band perception capacitive device loaded in series network comprises high band inductance MEMS (micro electro mechanical system); One end of described low-frequency range inductance MEMS (micro electro mechanical system) is connected with the antenna arm of described low-frequency range, the other end is connected with described distributing point part; One end of described high band inductance MEMS (micro electro mechanical system) is connected with the antenna arm of described high band, the other end is connected with described distributing point part.
3. perceptual capacitive device loaded in series restructural portable mobile communication device antenna according to claim 1, it is characterized in that, described low-frequency range perception capacitive device loaded in series network comprises low-frequency range electric capacity MEMS (micro electro mechanical system), and described high band perception capacitive device loaded in series network comprises high band electric capacity MEMS (micro electro mechanical system); One end of described low-frequency range electric capacity MEMS (micro electro mechanical system) is connected with the antenna arm of described low-frequency range, the other end is connected with described distributing point part; One end of described high band electric capacity MEMS (micro electro mechanical system) is connected with the antenna arm of described high band, the other end is connected with described distributing point part.
4. perceptual capacitive device loaded in series restructural portable mobile communication device antenna according to any one of claim 1 ~ 3, it is characterized in that, described low-frequency range is parallel to ground device, high band and is parallel to ground device and comprises that low-frequency range is parallel to ground inductance, high band is parallel to ground inductance respectively.
5. perceptual capacitive device loaded in series restructural portable mobile communication device antenna according to claim 4, is characterized in that, the antenna arm of described low-frequency range and the antenna arm of high band adopt metalwork to be formed.
6. perceptual capacitive device loaded in series restructural portable mobile communication device antenna according to claim 5, it is characterized in that, the antenna arm of described low-frequency range forms the metal end of antenna together with the antenna arm of high band.
7. perceptual capacitive device loaded in series restructural portable mobile communication device antenna according to claim 1 or 6, it is characterized in that, described printed wiring board is connected with the metal shell of portable mobile apparatus.
8. restructural portable mobile communication device antenna according to any one of claim 1 ~ 3, is characterized in that, the specification of described printed wiring board is 135mm × 80mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017107451A1 (en) * | 2015-12-22 | 2017-06-29 | 乐视控股（北京）有限公司 | Tunable antenna and mobile terminal |
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| CN103367891A (en) * | 2013-05-10 | 2013-10-23 | 上海安费诺永亿通讯电子有限公司 | Reconfigurable low-SAR (specific absorption rate) value wireless terminal antenna and wireless terminal thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013770A (en) * | 2006-11-06 | 2007-08-08 | 王岩 | Portable terminal module antenna |
| CN101719584A (en) * | 2009-12-24 | 2010-06-02 | 深圳华为通信技术有限公司 | Reconfigurable mobile phone built-in antenna and implementation method thereof |
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