CN105870597A - Dual-antenna scheme sharing metal back cover - Google Patents
Dual-antenna scheme sharing metal back cover Download PDFInfo
- Publication number
- CN105870597A CN105870597A CN201610253186.0A CN201610253186A CN105870597A CN 105870597 A CN105870597 A CN 105870597A CN 201610253186 A CN201610253186 A CN 201610253186A CN 105870597 A CN105870597 A CN 105870597A
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- China
- Prior art keywords
- antenna
- back cover
- metal back
- segment
- radio
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
- H01Q1/244—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas extendable from a housing along a given path
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention provides a dual-antenna scheme sharing a metal back cover. The dual-antenna scheme comprises a first segment and a second segment, wherein the top of the metal back cover is taken as the first segment of a radiation region, the middle of the second segment is grounded, a gap is formed between the first segment and the second segment, the first segment and the second segment are arranged in parallel, the dual-antenna scheme also comprises a near-field antenna and a radio-frequency antenna, the near-field antenna and the radio-frequency antenna are in feeding connection with the first segment, and the first segment is further connected with the second segment to be grounded through a conductor. In the dual-antenna scheme, a part of the shared metal back cover is taken as the near-field antenna and the radio-frequency antenna of the radiation region, a traditional mode of a power supply coil and a ferromagnet is abandoned, and the cost is saved; moreover, no extra slotting design is needed in the appearance of a terminal, so that the product is more attractive; and meanwhile, the dual-antenna scheme is directly connected to the radiation region of the metal back cover, and the coupling loss and the like brought by coupling feeding is prevented.
Description
Technical field
The present invention relates to field of wireless communication, more particularly, to the two-antenna scheme of shared metal back cover.
Background technology
Universal along with metal back cover communicating terminal in recent years, the solution that conventional NFC antenna is attached at plastic handset bonnet the most gradually becomes no longer to be suitable for, but all-metal back-cover design commonly used in high-end handheld terminal, be there is bigger suppression in tradition NFC performance, even arrive completely losing of NFC function.Taking this, realizing NFC function in metal back cover mode becomes the important problem that industry needs to solve.At present, major part solution is to use terminal rear portion shooting head bore to crack the mode processed, or mode of cracking between rear portion camera and fingerprint identification hole, the power coil of near field antenna is placed around rear portion camera or fingerprint identification hole.Another part is the near field antenna function realizing metal back cover by the way of coupling feed point.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of two-antenna scheme applied and share metal back cover in the near field antenna of different communication fields and far field radio-frequency antenna.
For solving above-mentioned technical problem, present invention provide the technical scheme that the two-antenna scheme of a kind of shared metal back cover, including the top of metal back cover as the first paragraph of radiation area and the second segment of middle part ground connection, it is provided with gap between described first paragraph and second segment and be arranged in parallel, also include near field antenna and radio-frequency antenna, described near field antenna and radio-frequency antenna feed simultaneously and are connected to first paragraph, and described first paragraph is connected to second segment ground connection also by conductor.
The present invention shares a part of near field antenna as radiation areas of metal back cover and radio-frequency antenna function, abandon power coil and add ferritic traditional approach, price more saves, and terminal contour is without design of additionally cracking, make product the most attractive in appearance, it is directly connected to metal back cover radiation areas, it is to avoid the coupling loss etc. that couple feed brings simultaneously.
Described near field antenna includes RFID module, and described RFID module accesses the first distributing point in first paragraph by the first reactance component, and resistance high frequency leads to low frequency, effectively achieves anti-jamming effectiveness；Described radio-frequency antenna includes radio-frequency module, and described radio-frequency module accesses the second distributing point in first paragraph by the second reactance component, it is achieved different radiation areas, two ends, distributing point left and right reach the effect of different frequency range electric field radiation.
Described first distributing point and the second distributing point overlap, another prioritization scheme as the application, without additionally adding coil and ferrite, without realizing near-field communication in the case of additionally arranging gap in metal back cover and radio-frequency communication does not interfere with each other and meets the effect of emission requirements.
Described first reactance component is high Q value inductance, and the second reactance component is electric capacity.
Described near field antenna includes NFC communication antenna.
Described radio-frequency antenna includes main antenna, diversity antenna and GPS, WIFI common antenna.
The present invention has abandoned the implementation of traditional power coil, and without doing design of specifically cracking in metal back cover.Near field antenna is connected to one section of metal back cover radiation areas by high Q value inductance, then is connected to ground by earth conductor, forms ring radiation region, and these radiation areas are mainly magnetic field radiation effect.Radio-frequency antenna is connected to metal back cover radiation areas by reactance component (electric capacity), it is connected to ground again by earth conductor, the metal back cover radiation areas of antenna feed two ends different length achieve the frequency range that radio-frequency antenna is different, and electromagnetic field radiation effect is played in metal back cover radiation areas.Generally near field antenna frequency range is lower than radio-frequency communication field.Additionally the present invention uses direct feed form, it is to avoid because ensure that the low interference of direct feed while the loss that brings of couple feed.
Compared with prior art, present invention have the advantage that
1. the present invention is without using power coil to add ferritic traditional approach, has more preferable cost advantage and space advantage.
Radio-frequency antenna the most of the present invention and near field antenna share metal back cover, it is achieved that the miniaturization of antenna
3. the present invention is without using cracking of metal back cover, and the free degree of configuration design is higher, and more attractive.
4. the present invention is without using couple feed, is lost relatively small.
Accompanying drawing explanation
Fig. 1 is the structural representation that the embodiment of the present invention 1 shares the two-antenna scheme of metal back cover.
Fig. 2 is the equivalent circuit diagram of the embodiment of the present invention 1 distributing point near field antenna altogether.
Fig. 3 is the equivalent circuit diagram of the embodiment of the present invention 1 distributing point radio-frequency antenna altogether.
Fig. 4 is the current distributing figure of the embodiment of the present invention 1 distributing point near field antenna altogether.
Fig. 5 is the structural representation that the embodiment of the present invention 2 shares the two-antenna scheme of metal back cover.
Fig. 6 is the current distributing figure of the embodiment of the present invention 2 distributing point near field antenna altogether.
Wherein, 1 is first paragraph, and 2 is second segment, and 3 is the 3rd section, and 4 is conductor, and 5 is radio-frequency module, and 6 is RFID module.
Detailed description of the invention
The present invention is explained in further detail below in conjunction with accompanying drawing and embodiment for the ease of it will be appreciated by those skilled in the art that.
Embodiment
1
As Figure 1-4, a kind of two-antenna scheme of shared metal back cover, in the communication apparatus with syllogic metal back cover, realize near-field communication and far field radio-frequency communication in the case of not increasing other devices such as coil and the most additionally cracking simultaneously, and minimally controls signal disturbing, this metal back cover includes first paragraph 1, second segment 2 and the 3rd section 3, and the present embodiment two-antenna scheme is arranged on first paragraph 1 and second segment 2.
nullAs shown in Figure 1，This two-antenna scheme includes the first paragraph 1 as main radiation areas and the second segment 2 of ground connection，Also include near field antenna and radio-frequency antenna，Wherein near field antenna includes NFC antenna，Near field antenna part includes RFID module 6，RFID module 6 connects the distributing point R on first paragraph by high Q value inductance L1，Radio-frequency antenna includes main antenna，Diversity antenna，And GPS、WIFI common antenna etc.，Radio-frequency antenna part includes radio-frequency module 5，Radio-frequency module 5 is connected to distributing point R by electric capacity C1，Near field antenna and radio-frequency antenna in the present embodiment share same distributing point，I.e. the first distributing point and the second distributing point described in claims are all distributing point R，Near field antenna and radio-frequency antenna are all connected to metal back cover second segment 2 by connection conductor 4 and are thus connected to ground simultaneously.
Wherein metal back cover first paragraph is divided into 1a part, 1e part and 1b part by conductor 4 and distributing point R, part between conductor 4 and distributing point R is 1a part, conductor 4 is 1e part to the part at first paragraph edge, and the part of distributing point R to first paragraph edge is 1b part.
Two kinds of different antennas of this two-antenna scheme are respectively adopted disparate modules and feed, from the distributing point R feed-in of first paragraph 1.Radio-frequency antenna is fed by the IC in radio-frequency module, and near field antenna is fed by the IC in RFID module, and two groups of module front ends load different reactance components respectively.
RFID module is connected to metal back cover first paragraph by the first reactance component, i.e. high Q value inductance L1.Radio-frequency module is connected to metal back cover first paragraph by the second reactance component, i.e. electric capacity C1.Metal back cover first paragraph is all connected to metal back cover 2 sections by connection conductor 4, is thus connected to ground.
Being illustrated in figure 2 the near field antenna equivalent circuit diagram of the present embodiment, wherein the first reactance component high Q value inductance L1 is conducting state under RFID frequency band, shows as inductance characteristic, and for being usually high impedance under radio frequency band and then being equivalent to open-circuit condition.Being illustrated in figure 3 radio-frequency antenna equivalent circuit, the second reactance component electric capacity C1 is equivalent to short-circuit condition for Low ESR under radio frequency band, and is high impedance for RFID, is equivalent to open-circuit condition.
Electric capacity C1 is high impedance under RFID state, is equivalent to open circuit, and then under RFID duty, RFID communication will not be impacted by radio-frequency module.Inductance L1 shows as high impedance under radio frequency state, is open circuit, and during radio-frequency module work, radio-frequency module will not be impacted by RFID module.Therefore, the first reactance component L1 and the second reactance component C1 can reduce influencing each other between radio-frequency module and RFID module.
As shown in Figure 1, 2, due to the second reactance component electric capacity C1 under RFID duty for open circuit.RFID antenna is fed by RFID module, by the first reactance component high Q value inductance L1, is connected to metal back cover first paragraph, by radiation areas 1a part, connection conductor 4 is connected to the second segment of metal back cover, is thus connected to ground.As shown in Figure 4, the 1a of metal back cover first paragraph is partly and metal back cover second segment edge is i.e. parallel to the 1a part formation loop configuration of metal back cover first paragraph.Electric current, along metal back cover first paragraph 1a part, is parallel to the marginal portion of the 1a of first paragraph from conductor 4 to metal back cover second segment earth conductor, forms ring current distribution, it is achieved the loop aerial of magnetic field radiation.This loop configuration realizes near-field communication function by magnetic field radiation.Under normal circumstances, the near field communication module working frequency range in RFID module is lower than radio-frequency module working frequency range, can reach good anti-jamming effectiveness.
As shown in Figure 1,3, the first reactance component high Q value inductance L1 is open circuit under radio frequency operation state.Radio-frequency module is to radio-frequency antenna feeds, by electric capacity C1, it is connected to metal back cover first paragraph, distributing point R left-hand component 1a is connected to metal back cover second segment with being connected to through connecting conductor 4, distributing point R right-hand component 1b is to the edge of metal back cover first paragraph, forming open-circuit condition, whole antenna forms inverse-F antenna form, and the cascade unit that distributing point R two ends 1a part is different with 1b part can realize the frequency range function that radio-frequency antenna is different.Merely just using inverse-F antenna as an example, same the method is also practically applicable to other antenna, such as Loop antenna etc..
Embodiment
2
As it is shown in figure 5, as another embodiment of the application, difference from Example 1 is, the distributing point of near field antenna and radio-frequency antenna is misaligned, and RFID module is fed by the first distributing point R2, and radio-frequency module is fed by the second distributing point R1.The front end of two modules all by different reactance components to metal back cover first paragraph.Radio-frequency module front end uses the second reactance component electric capacity C1 to be connected to the second distributing point R1, and the second reactance component electric capacity C1 is high impedance for RFID module, is open-circuit condition, and during radio-frequency module work, RFID module will not produce impact to it.And RFID module front end uses and is connected to the first distributing point R2 by the first reactance component high Q value inductance L1, first reactance component high Q value inductance L1 is high impedance to radio-frequency module, being open-circuit condition, when RFID module works, radio-frequency module will not produce impact to RFID antenna.
Wherein metal back cover first paragraph is divided into 1a part, 1e part, 1c part and 1d part by conductor the 4, first distributing point R2 and the second distributing point R1, wherein the part between conductor 4 and the second distributing point R1 is 1a part, conductor 4 is 1e part to the part at first paragraph edge, being 1c part between first distributing point R2 and the second distributing point R1, the part of the first distributing point R2 to first paragraph edge is 1d part.
During radio-frequency module work, main radiation areas remain the 1a part on metal back cover first paragraph and 1c part adds 1d part, the radiation areas adding 1d different length partly with 1c part by 1a part produce different frequency ranges, and then realize corresponding radio-frequency communication function.Near field antenna feeds from the first distributing point R2, and on first paragraph, 1c part and 1a partial radiation region, through connecting conductor 4, be connected to the second segment of metal back cover and then be connected to ground.
It is illustrated in figure 6 a point distributing point RFID ring current distribution map, RFID antenna is fed by RFID module, by inductance L1 to first distributing point R2, by 1c part and the 1a part of metal back cover first paragraph, it is connected to ground through conductor 4 to metal back cover second segment, metal back cover second segment marginal portion and the 1a part and the 1c part that are parallel to metal back cover first paragraph, form current loop, thus realize toroidal magnetic field radiation function.
Being more than the wherein specific implementation of the present invention, it describes more concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these obvious alternative forms belong to protection scope of the present invention.
Claims (6)
1. the two-antenna scheme of a shared metal back cover, including the top of metal back cover as the first paragraph of radiation area and the second segment of middle part ground connection, it is provided with gap between described first paragraph and second segment and be arranged in parallel, it is characterized in that: also include near field antenna and radio-frequency antenna, described near field antenna and radio-frequency antenna feed simultaneously and are connected to first paragraph, and described first paragraph is connected to second segment ground connection also by conductor.
The two-antenna scheme of shared metal back cover the most according to claim 1, it is characterized in that: described near field antenna includes RFID module, described RFID module accesses the first distributing point in first paragraph by the first reactance component, described radio-frequency antenna includes radio-frequency module, and described radio-frequency module accesses the second distributing point in first paragraph by the second reactance component.
The two-antenna scheme of shared metal back cover the most according to claim 2, it is characterised in that: described first distributing point and the second distributing point overlap.
The two-antenna scheme of shared metal back cover the most according to claim 2, it is characterised in that: described first reactance component is high Q value inductance, and the second reactance component is electric capacity.
The two-antenna scheme of shared metal back cover the most according to claim 1, it is characterised in that: described near field antenna includes NFC communication antenna.
The two-antenna scheme of shared metal back cover the most according to claim 1, it is characterised in that: described radio-frequency antenna includes main antenna, diversity antenna and GPS, WIFI common antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610253186.0A CN105870597A (en) | 2016-04-22 | 2016-04-22 | Dual-antenna scheme sharing metal back cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610253186.0A CN105870597A (en) | 2016-04-22 | 2016-04-22 | Dual-antenna scheme sharing metal back cover |
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| Publication Number | Publication Date |
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| CN105870597A true CN105870597A (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610253186.0A Pending CN105870597A (en) | 2016-04-22 | 2016-04-22 | Dual-antenna scheme sharing metal back cover |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107240768A (en) * | 2017-04-27 | 2017-10-10 | 广东小天才科技有限公司 | Antenna assembly and mobile terminal |
| CN108288754A (en) * | 2017-10-27 | 2018-07-17 | 珠海市魅族科技有限公司 | Antenna module and terminal device |
| CN108288753A (en) * | 2017-10-27 | 2018-07-17 | 珠海市魅族科技有限公司 | Antenna module and terminal device |
| CN112073561A (en) * | 2020-09-08 | 2020-12-11 | 珠海格力电器股份有限公司 | Antenna system of mobile terminal and mobile terminal |
| CN112928462A (en) * | 2021-01-28 | 2021-06-08 | 维沃移动通信有限公司 | Electronic device |
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| US20130050045A1 (en) * | 2011-08-22 | 2013-02-28 | Marek Chacinski | Multiple-turn loop antenna arrangement and a portable radio communication device comprising such an arrangement |
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| CN105428808A (en) * | 2015-12-09 | 2016-03-23 | 广东欧珀移动通信有限公司 | Antenna and terminal for transmitting and/or receiving multi-frequency-range wireless signals |
| CN105514624A (en) * | 2015-12-23 | 2016-04-20 | 广东欧珀移动通信有限公司 | Mobile terminal antenna system and mobile terminal |
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2016
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20130050045A1 (en) * | 2011-08-22 | 2013-02-28 | Marek Chacinski | Multiple-turn loop antenna arrangement and a portable radio communication device comprising such an arrangement |
| CN105261834A (en) * | 2015-09-16 | 2016-01-20 | 惠州硕贝德无线科技股份有限公司 | Near-field communication antenna assembly and mobile equipment |
| CN105390804A (en) * | 2015-12-09 | 2016-03-09 | 广东欧珀移动通信有限公司 | Multi-mode slot antenna and mobile terminal |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107240768A (en) * | 2017-04-27 | 2017-10-10 | 广东小天才科技有限公司 | Antenna assembly and mobile terminal |
| CN108288754A (en) * | 2017-10-27 | 2018-07-17 | 珠海市魅族科技有限公司 | Antenna module and terminal device |
| CN108288753A (en) * | 2017-10-27 | 2018-07-17 | 珠海市魅族科技有限公司 | Antenna module and terminal device |
| CN112073561A (en) * | 2020-09-08 | 2020-12-11 | 珠海格力电器股份有限公司 | Antenna system of mobile terminal and mobile terminal |
| CN112928462A (en) * | 2021-01-28 | 2021-06-08 | 维沃移动通信有限公司 | Electronic device |
| CN112928462B (en) * | 2021-01-28 | 2023-08-22 | 维沃移动通信有限公司 | Electronic equipment |
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Application publication date: 20160817 |