CN105826661B - A kind of mobile terminal antenna and mobile terminal - Google Patents
A kind of mobile terminal antenna and mobile terminal Download PDFInfo
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- CN105826661B CN105826661B CN201510736826.9A CN201510736826A CN105826661B CN 105826661 B CN105826661 B CN 105826661B CN 201510736826 A CN201510736826 A CN 201510736826A CN 105826661 B CN105826661 B CN 105826661B
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Abstract
An embodiment of the present invention provides a kind of mobile terminal antenna and mobile terminals, wherein the mobile terminal antenna includes：Grounding parts, antenna feed, antenna-matching circuit, feeder equipment, antenna radiator；First connecting pin of antenna feed is connected with grounding parts, and at tie point by grounded part at the first grounding parts and the second grounding parts, second connection end is connected with the first connecting pin of antenna-matching circuit；The second connection end of antenna-matching circuit is connected with the first connecting pin of feeder equipment；The second connection end of feeder equipment is connected with antenna radiator, and antenna radiator is divided into first antenna radiator and the second antenna radiator at tie point.When the embodiment of the present invention can be avoided human hand or the number of people near or adjacent to antenna, the problem of antenna is to the receptivity reduction of signal or aerial signal fast-fading can be caused.
Description
Technical field
The present invention relates to technical field of mobile terminals, more particularly to a kind of mobile terminal antenna and a kind of mobile terminal.
Background technology
Currently, there is most of mobile terminals radio communication function, these mobile terminals usually to be realized by antenna wireless
The reception of electric signal.
On mobile terminals, antenna can be divided into external antenna and built-in aerial, built-in aerial relative to external antenna and
Speech, has many advantages, such as to be less likely to be damaged and beauty, becomes the mainstream of current mobile terminal antenna.
In traditional design, usually the feed point of built-in aerial or end are arranged in certain side of Mobile terminal main board.
This antenna design, the electric field on antenna will focus on certain side of mainboard.When human hand or the number of people it is close or
It when being close to antenna, is easy to cause antenna resonant frequency and deviates significantly, reduce antenna to the receptivity of signal, even result in antenna
Signal fast-fading so that mobile terminal can not normal use radio communication function.
Especially in all-metal appearance mobile terminal, antenna usually requires the metal parts using all-metal appearance, due to
Electric field strength of the all-metal appearance usually with the fracture gap that either strip is open at the gap that fracture or strip are open
It is very big, when human hand or the number of people are close or when being close to antenna, it is susceptible to aerial signal fast-fading, antenna can not normally receive
The problem of signal.
Invention content
The embodiment of the present invention proposes a kind of mobile terminal antenna and a kind of corresponding mobile terminal, mobile to solve tradition
Terminal antenna can cause antenna to the receptivity reduction of signal or aerial signal when human hand or the number of people are near or adjacent to antenna
Fast-fading problem.
To solve the above-mentioned problems, the embodiment of the invention discloses a kind of mobile terminal antennas, including：
Grounding parts, antenna feed, antenna-matching circuit, feeder equipment, antenna radiator；
First connecting pin of the antenna feed is connected with the grounding parts, and at tie point by the grounded part at
First grounding parts and the second grounding parts, second connection end are connected with the first connecting pin of the antenna-matching circuit；The antenna
The second connection end of match circuit is connected with the first connecting pin of the feeder equipment；The second connection end of the feeder equipment with
The antenna radiator is connected, and the antenna radiator is divided into first antenna radiator and the second antenna spoke at tie point
Beam；
Wherein, the length h of the length g of first grounding parts and second grounding parts meets condition 0.5g ＜ h ＜
2g；The first antenna radiator and second antenna radiator are distributed in the antenna feed and the grounding parts respectively
The left and right sides of tie point；The length m of the length n of the first antenna radiator and second antenna radiator meets item
Part 0.5m ＜ n ＜ 2m；The resonant frequency p of the first antenna radiator and the resonant frequency q of second antenna radiator are full
Sufficient condition 0.5q ＜ p ＜ 2q.
The embodiment of the invention also discloses a kind of mobile terminal, the mobile terminal includes mobile terminal antenna, the shifting
Dynamic terminal antenna includes：
Grounding parts, antenna feed, antenna-matching circuit, feeder equipment, antenna radiator；
First connecting pin of the antenna feed is connected with the grounding parts, and at tie point by the grounded part at
First grounding parts and the second grounding parts, second connection end are connected with the first connecting pin of the antenna-matching circuit；The antenna
The second connection end of match circuit is connected with the first connecting pin of the feeder equipment；The second connection end of the feeder equipment with
The antenna radiator is connected, and the antenna radiator is divided into first antenna radiator and the second antenna spoke at tie point
Beam；
Wherein, the length h of the length g of first grounding parts and second grounding parts meets condition 0.5g ＜ h ＜
2g；The first antenna radiator and second antenna radiator are distributed in the antenna feed and the grounding parts respectively
The left and right sides of tie point；The length m of the length n of the first antenna radiator and second antenna radiator meets item
Part 0.5m ＜ n ＜ 2m；The resonant frequency p of the first antenna radiator and the resonant frequency q of second antenna radiator are full
Sufficient condition 0.5q ＜ p ＜ 2q.
The embodiment of the present invention includes following advantages：
In embodiments of the present invention, since the length h of the length g of the first grounding parts 1011 and the second grounding parts 1012 is full
Sufficient condition 0.5g ＜ h ＜ 2g, first antenna radiator 1051 and the second antenna radiator 1052 are distributed in antenna feed 102 respectively
With the left and right sides of the tie point of grounding parts 101, and the length n of first antenna radiator 1051 and second antenna radiator
1052 length m meets condition 0.5m ＜ n ＜ 2m, the resonant frequency p and the second antenna radiator of first antenna radiator 1051
1052 resonant frequency q meets condition 0.5q ＜ p ＜ 2q, thus, the electric field on the mobile terminal antenna of the embodiment of the present invention will
Toward the left and right sides dispersion of grounding parts 101, the electric field for overcoming traditional antenna the defects of excessively collects, so avoid human hand or
When the number of people is near or adjacent to antenna, the problem of antenna is to the receptivity reduction of signal or aerial signal fast-fading can be caused.
Description of the drawings
Fig. 1 is a kind of structure diagram of mobile terminal antenna embodiment 1 of the present invention；
Fig. 2 is first antenna radiator and the mobile terminal antenna that the second antenna radiator is PIFA types or IFA types
Structure diagram；
Fig. 3 is that first antenna radiator is PIFA types or IFA types, and the second antenna radiator is Monopole types
Mobile terminal antenna structure diagram；
Fig. 4 is the structural frames for the mobile terminal antenna that first antenna radiator and the second antenna radiator are LOOP types
Figure；
Fig. 5 is that first antenna radiator is Monopole types, and the second antenna radiator is the mobile terminal of LOOP types
The structure diagram of antenna；
Fig. 6 is first antenna radiator and the second antenna radiator is LOOP types, and the connection type of feeder equipment is seam
The structure diagram for the mobile terminal antenna that gap is of coupled connections；
Fig. 7 is the structure diagram for the mobile terminal antenna that first antenna radiator and the second antenna radiator are G types；
Fig. 8 is first antenna radiator and the second antenna radiator is Monopole types, the connection type of feeder equipment
For the structure diagram of the mobile terminal antenna of slot-coupled connection；
Fig. 9 is first antenna radiator and the second antenna radiator is Monopole types, and with the shifting of coupling branch
The structure diagram of dynamic terminal antenna；
Figure 10 is first antenna radiator shown in Fig. 9 and the second antenna radiator is Monopole types, and with coupling
Standing-wave ratio schematic diagram of the mobile terminal antenna of branch under free space；
The structure diagram for the mobile terminal antenna that Figure 11 is mobile terminal when including metal center；
Figure 12 is mobile terminal when including metal back cover, and first antenna radiator and the second antenna radiator are IFA types
Mobile terminal antenna structure diagram；
Figure 13 is the efficiency comparative's figure of traditional antenna and double IFA antennas of the invention at low frequency；
Figure 14 is mobile terminal when including metal back cover, and first antenna radiator and the second antenna radiator are LOOP types
Mobile terminal antenna structure diagram；
Figure 15 is the efficiency comparative's figure of traditional antenna and double LOOP antennas of the invention at low frequency；
Figure 16 is mobile terminal when including metal back cover, and first antenna radiator and the second antenna radiator are LOOP classes
Type, the connection type of feeder equipment are the structure diagram of the mobile terminal antenna of slot-coupled connection；
Figure 17 is the efficiency comparative's figure of traditional antenna and double LOOP slot-coupled antennas of the invention in high frequency.
Specific implementation mode
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
First embodiment：
Referring to Fig.1, a kind of structure diagram of mobile terminal antenna embodiment 1 of the present invention is shown, including：Grounding parts
101, antenna feed 102, antenna-matching circuit 103, feeder equipment 104 and antenna radiator 105.
Antenna feed 102 is the signal source of antenna, can generate or receive radiofrequency signal.
Antenna-matching circuit 103 is usually impedance matching, to realize load impedance and source impedance conjugate impedance match, to obtain
Obtain maximum power transmission.
Feeder equipment 104 will be in aerial signal feed antenna radiator 105 commonly used in realizing.
In embodiments of the present invention, antenna feed 102, antenna-matching circuit 103 and feeder equipment 104 include first
Connecting pin and second connection end, grounding parts 101, antenna feed 102, antenna-matching circuit 103, feeder equipment 104 and antenna spoke
The connection relation of beam 105 is as follows：
First connecting pin of antenna feed 102 is connected with grounding parts 101, and at tie point by the grounded part at
One grounding parts 1011 and the second grounding parts 1012, second connection end are connected with the first connecting pin of antenna-matching circuit 103；Antenna
The second connection end of match circuit 103 is connected with the first connecting pin of feeder equipment 104；The second connection end of feeder equipment 104
It is connected with antenna radiator 105, and antenna radiator 105 is divided into first antenna radiator 1051 and second day at tie point
Beta radiation body 1052.
Wherein, the length h of the length g of the first grounding parts 1011 and the second grounding parts 1012 meets condition 0.5g ＜ h ＜
2g is less than second also that is, the length value of the first grounding parts 1011 should be more than the half of the length value of the second grounding parts 1012
2 times of the length value of grounding parts 1012, for example, it is assumed that the length of the second grounding parts 1012 is 20mm, then the first grounding parts 1011
Length value should be between 10mm~40mm.
In most highly preferred embodiment of the invention, the length h of the length g of the first grounding parts 1011 and the second grounding parts 1012
Meet condition g=h.
First antenna radiator 1051 and the second antenna radiator 1052 are distributed in antenna feed 102 and grounding parts respectively
The left and right sides of 101 tie point, as shown in Figure 1, first antenna radiator 1051 and the second antenna radiator 1052 relative to
The tie point of antenna feed 102 and grounding parts 101 is in left-right layout.
The length m of the length n of first antenna radiator 1051 and the second antenna radiator 1052 meets condition 0.5m ＜ n ＜
2m is small also that is, the length value of first antenna radiator 1051 should be more than the half of the length value of the second antenna radiator 1052
In 2 times of the length value of the second antenna radiator 1052, for example, it is assumed that the length of the second antenna radiator 1052 is 20mm, then
The length value of first antenna radiator 1051 should be between 10mm~40mm.
In most highly preferred embodiment of the invention, the length n of first antenna radiator 1051 and the second antenna radiator 1052
Length m meet condition m=n.
The resonant frequency p of first antenna radiator 1051 and the resonant frequency q of second antenna radiator 1052 meet
Condition 0.5q ＜ p ＜ 2q, also that is, the resonant frequency of first antenna radiator 1051 should be more than the second antenna radiator 1052
The half of resonant frequency is less than 2 times of the resonant frequency of the second antenna radiator 1052, for example, it is assumed that the second antenna radiator
1052 resonant frequency be 900MHz, then the resonant frequency of first antenna radiator 1051 should 450MHz~1800MHz it
Between.
In embodiments of the present invention, since the length h of the length g of the first grounding parts 1011 and the second grounding parts 1012 is full
Sufficient condition 0.5g ＜ h ＜ 2g, first antenna radiator 1051 and the second antenna radiator 1052 are distributed in antenna feed respectively
102 with the left and right sides of the tie points of grounding parts 101, and the length n of first antenna radiator 1051 and the second antenna spoke
The length m of beam 1052 meets condition 0.5m ＜ n ＜ 2m, the resonant frequency p of first antenna radiator 1051 and the second antenna spoke
The resonant frequency q of beam 1052 meets condition 0.5q ＜ p ＜ 2q, thus, the electricity on the mobile terminal antenna of the embodiment of the present invention
The electric field that toward the left and right sides dispersion of grounding parts 101, will overcome traditional antenna the defects of excessively collects, and then avoids people
When hand or the number of people are near or adjacent to antenna, antenna can be caused to the receptivity reduction of signal or asking for aerial signal fast-fading
Topic.
Second embodiment：
In a kind of embodiment 2 of mobile terminal antenna of the present invention, the connection type of feeder equipment and antenna radiator can
Think direct-connected connection or slot-coupled connection, when for direct-connected connection, is effectively equivalent to a conducting wire.
The mobile terminal antenna of the embodiment of the present invention can be operated in different network formats, such as GSM network (Global
System for Mobile Communications, global system for mobile communications), TD-SCDMA network (Time
Division-Synchronous Code Division Multiple Access, TD SDMA), WCDMA nets
Network (Wideband Code Division Multiple Access, wideband code division multiple access), LTE network
(LongTermEvolution, long term evolution) etc., can also be operated in different antenna bands, as GSM850MHz~
The high bands such as the low-frequency ranges such as GSM900MHz or GSM1800MHz~GSM1900MHz.
In embodiments of the present invention, first antenna radiator and the second antenna radiator can be the antenna spokes of same type
Beam, which can also be different types of antenna radiator, i.e. first antenna radiator and the second antenna radiator, to be
Monopole (monopole) type, PIFA (Planar Inverted F-shaped Antenna, plane inverse F type) type,
It is any one in IFA (Inverted F-shaped Antenna, reversed F-typed) type, LOOP (ring-type) type, G types, F types
The combination of kind or two types antenna radiator.
Hereinafter, being Monopole types, PIFA types, IFA classes for first antenna radiator, the second antenna radiator
Type, LOOP types or G type antenna radiators illustrate the mobile terminal antenna in the embodiment of the present invention in conjunction with diagram,
Not exhaustive place in explanation can refer to the explanation in first embodiment to mobile terminal antenna：
In the mobile terminal antenna of the embodiment of the present invention shown in Fig. 1, first antenna radiator 1051 and the second aerial radiation
Body 1052 is Monopole type antenna radiators.
The mobile terminal antenna of the embodiment of the present invention shown in Fig. 2 includes：Grounding parts 201, antenna feed 202, antenna match
Circuit 203, feeder equipment (not shown) and antenna radiator 204, antenna radiator 204 is in feeder equipment and aerial radiation
It is divided into first antenna radiator 2041 and the second antenna radiator 2042 at the tie point of body 204.
Wherein, first antenna radiator 2041 and the second antenna radiator 2042 are PIFA types or IFA type antenna spokes
The connection type of beam, feeder equipment and antenna radiator 204 is direct-connected connection.
The mobile terminal antenna of the embodiment of the present invention shown in Fig. 3 includes：Grounding parts 301, antenna feed 302, antenna match
Circuit 303, feeder equipment (not shown) and antenna radiator 304, antenna radiator 304 is in feeder equipment and aerial radiation
It is divided into first antenna radiator 3041 and the second antenna radiator 3042 at the tie point of body 304.
Wherein, first antenna radiator 3041 is PIFA types or IFA type antenna radiators, the second antenna radiator
3042 be Monopole type antenna radiators, and the connection type of feeder equipment and antenna radiator 304 is direct-connected connection.
The mobile terminal antenna of the embodiment of the present invention shown in Fig. 4 includes：Grounding parts 401, antenna feed 402, antenna match
Circuit 403, feeder equipment (not shown) and antenna radiator 404, antenna radiator 404 is in feeder equipment and aerial radiation
It is divided into first antenna radiator 4041 and the second antenna radiator 4042 at the tie point of body 404.
Wherein, first antenna radiator 4041 and the second antenna radiator 4042 are LOOP type antenna radiators, feedback
The connection type of electric installation and antenna radiator 404 is direct-connected connection.
LOOP type antennas radiator can also generate at least one humorous in addition to generating resonance in low-frequency range in high band
It shakes, when first antenna radiator 4041 and the second antenna radiator 4042 are cyclic annular LOOP type antennas radiators, Ke Yituo
Open up the bandwidth of the mobile terminal antenna.
The mobile terminal antenna of the embodiment of the present invention shown in Fig. 5 includes：Grounding parts 501, antenna feed 502, antenna match
Circuit 503, feeder equipment (not shown) and antenna radiator 504, antenna radiator 504 is in feeder equipment and aerial radiation
It is divided into first antenna radiator 5041 and the second antenna radiator 5042 at the tie point of body 504.
Wherein, first antenna radiator 5041 is Monopole type antenna radiators, and the second antenna radiator 5042 is
The connection type of LOOP type antenna radiators, feeder equipment and antenna radiator 504 is direct-connected connection.
The mobile terminal antenna of the embodiment of the present invention shown in Fig. 6 includes：Grounding parts 601, antenna feed 602, antenna match
Circuit 603, feeder equipment 604, antenna radiator 605, company of the antenna radiator 605 in feeder equipment and antenna radiator 605
Junction is divided into first antenna radiator 6051 and the second antenna radiator 6052.
Wherein, first antenna radiator 6051 and the second antenna radiator 6052 are LOOP type antenna radiators, feedback
Electric installation is that slot-coupled is connect with the connection type of antenna radiator 605.
The mobile terminal antenna of the embodiment of the present invention shown in Fig. 7 includes：Grounding parts 701, antenna feed 702, antenna match
Circuit 703, feeder equipment (not shown) and antenna radiator 704, antenna radiator 704 is in feeder equipment and aerial radiation
It is divided into first antenna radiator 7041 and the second antenna radiator 7042 at the tie point of body 704.
Wherein, first antenna radiator 7041 and the second antenna radiator 7042 are G type antenna radiators, feed dress
It is direct-connected connection to set with the connection type of antenna radiator 704.
The mobile terminal antenna of the embodiment of the present invention shown in Fig. 8 includes：Grounding parts 801, antenna feed 802, antenna match
Circuit 803, feeder equipment 804 and antenna radiator 805, antenna radiator 805 is in feeder equipment 804 and antenna radiator 805
Tie point at be divided into first antenna radiator 8051 and the second antenna radiator 8052, the both ends of conducting wire 806 respectively with connect
Ground portion 801 is connected with antenna radiator 805.
Wherein, first antenna radiator 8051 and the second antenna radiator 8052 are the radiation of Monopole type antennas
Body, feeder equipment 804 are that slot-coupled is connect with the connection type of antenna radiator 805.
In embodiments of the present invention, coupling point can be increased separately on first antenna radiator and the second antenna radiator
Branch, thus, mobile terminal antenna in the embodiment of the present invention can also include third antenna radiator and the 4th antenna radiator,
Third antenna radiator is connected with grounding parts respectively with the 4th antenna radiator, and respectively with first antenna radiator and second day
Beta radiation body forms coupled antenna radiator, and frequency can be expanded by coupling branch's third antenna radiator and the 4th antenna radiator
Band, third antenna radiator and the 4th antenna radiator can be tuned in low frequency or high frequency.
In most highly preferred embodiment of the invention, third antenna radiator and the 4th antenna radiator are relative to grounding parts and day
The tie point of line feed is symmetrical.
Fig. 9 show the mobile terminal antenna for increasing coupling branch, which includes：Grounding parts 901, antenna
Feed 902, antenna-matching circuit 903, antenna radiator 904, third antenna radiator 905, feeder equipment (not shown)
With the 4th antenna radiator 906.
Wherein, first antenna radiator 8051 and the second antenna radiator 8052 are the radiation of Monopole type antennas
Body, third antenna radiator 905 and the 4th antenna radiator 906 are connected with grounding parts 901 respectively, and respectively with first antenna
Radiator 9041 and the second antenna radiator 9042 form coupled antenna radiator, feeder equipment and antenna radiator shown in the figure
904 connection type is direct-connected connection.
Figure 10 shows that the first antenna radiator and the second antenna radiator as shown in Figure 9 of the embodiment of the present invention are
Monopole type antenna radiators, and standing-wave ratio signal of the mobile terminal antenna with coupling branch under free space
Scheme (design sketch), by can be seen that in figure, there are two resonant frequencies for mobile terminal antenna tool, wherein f1 indicates first antenna spoke
The resonant frequency of beam and the second antenna radiator, f2 indicate the resonance frequency of third antenna radiator and the 4th antenna radiator
Rate.
The mobile terminal antenna of the embodiment of the present invention can be arranged in the terminal, when mobile terminal includes in a metal
Frame, also, the metal center includes a short side, when which is equipped with breakpoint at the both ends of the short side, then in the metal
Short side in frame is antenna radiator, and the rest part that short side is removed in the metal center is connected with grounding parts；When mobile terminal packet
A metal back cover is included, also, the metal back cover is divided into two blocks of metal derbies up and down, there is insulation seam between upper and lower two blocks of metal derbies
Gap (Insulating gap can be with insulating materials such as filled plastics), then in two blocks of metal derbies up and down of the metal back cover, area is larger
Metal derby be grounding parts, the smaller metal derby of area be antenna radiator.
Figure 11 is mobile terminal antenna schematic diagram when mobile terminal includes a metal center in the embodiment of the present invention, should
Mobile terminal antenna includes：Grounding parts, antenna feed 1102, antenna-matching circuit 1103, feeder equipment (not shown) and
Antenna radiator,.
The metal center of the mobile terminal is made of a short side 1104 and the rest part 1101 in addition to short side 1104,
In, it is provided with breakpoint at the both ends of short side 1104 so that there is Insulating gap between 1101 and short side 1104, in this case,
Antenna radiator of the short side 1104 as the mobile terminal antenna, the rest part 1101 in addition to short side 1104 and the mobile terminal
The grounding parts of antenna are connected, and the connection type of feeder equipment and antenna radiator 1104 is direct-connected connection.
Figure 12 is mobile terminal antenna schematic diagram when mobile terminal includes a metal back cover in the embodiment of the present invention, should
Mobile terminal antenna includes：Grounding parts, antenna feed 1202, antenna-matching circuit 1203, feeder equipment (not shown), day
Beta radiation body, the first ground connection branch 1205 and second are grounded branch 1206, and antenna radiator is fed device and antenna radiator
Tie point at be divided into first antenna radiator 12041 and the second antenna radiator 12042, wherein first ground connection branch
1205 both ends are connected with grounding parts and first antenna radiator 12041 respectively, second ground connection branch 1206 both ends respectively with
Grounding parts and the second antenna radiator 12042 are connected, and first antenna radiator 12041 is collectively formed with the first ground connection branch 1205
IFA type antenna radiators, the second antenna radiator 12042 and second ground connection branch 1206 collectively form IFA type antenna spokes
Beam, the feeder equipment of the mobile terminal antenna and the connection type of antenna radiator are direct-connected connection.
The metal back cover of the mobile terminal is made of upper metal derby 1201 and lower metal derby 1204, wherein upper metal derby
1201 area is bigger than the area of lower metal derby 1204, has Insulating gap between upper metal derby 1201 and lower metal derby 1204
(insulating materials such as plastics can be inserted in Insulating gap), in this case, larger 1201 conduct of upper metal derby of area
The grounding parts of the mobile terminal antenna, antenna radiator of the smaller lower metal derby 1204 of area as the mobile terminal antenna.
Figure 13 is that (first antenna radiator and the second antenna radiator are IFA types to mobile terminal antenna shown in Figure 12
Antenna radiator, i.e., double IFA antennas) design sketch under low frequency (824MHz~960MHz), show that expression is IFA days double in figure
The curve 1301 of the relationship of antenna efficiency and working frequency range of the line under free space (free space) indicates that traditional antenna exists
The curve 1302 of the relationship of antenna efficiency and working frequency range under free space (free space) indicates traditional antenna in BHHR
Under antenna efficiency and working frequency range relationship curve 1303, indicate double antenna efficiencies and work of the IFA antennas at BHHR
The curve 1304 of the relationship of frequency range indicates pair curve of the relationship of antenna efficiencies and working frequency range of the IFA antennas at BHHL
1305 and indicate antenna efficiency and working frequency range of the traditional antenna at BHHL relationship curve 1306, wherein BHHR and
BHHL indicates test mode and mobile terminal antenna of the mobile terminal antenna under right head hand model under left head hand model respectively
Test mode
It can be seen that by the curve 1301-1306 in figure：Antenna efficiency difference of the traditional antenna at BHHR and BHHL exists
Reach maximum value when 960MHz, be 9db, antenna efficiency difference of double IFA antennas at BHHR and BHHL in 960MHz most
Greatly, it is less than 1db, also, the efficiency average value of double IFA antennas BHHR and BHHL increase 1.1db than traditional antenna；As it can be seen that this
Double IFA antennas of inventive embodiments have higher antenna efficiency, when can avoid human hand or the number of people near or adjacent to antenna,
It can lead to the problem of antenna is to the receptivity reduction of signal or aerial signal fast-fading.
Figure 14 is mobile terminal antenna schematic diagram when mobile terminal includes a metal back cover in the embodiment of the present invention, should
Mobile terminal antenna includes：Grounding parts, antenna feed 1402, antenna-matching circuit 1403, feeder equipment (not shown), day
Beta radiation body, the first ground connection branch 1405 and second are grounded branch 1406, wherein antenna radiator is fed device and antenna spoke
It is divided into first antenna radiator 14041 and the second antenna radiator 14042, the first ground connection branch 1405 at the tie point of beam
Both ends be connected respectively with grounding parts and first antenna radiator 14041, second ground connection branch 1406 both ends respectively with ground connection
Portion is connected with the second antenna radiator 14042, and first antenna radiator 14041 and first is grounded branch 1405 and collectively forms LOOP
Type antenna radiator, the second antenna radiator 14042 and second ground connection branch 1406 collectively form the radiation of LOOP type antennas
Body, the feeder equipment of the mobile terminal antenna and the connection type of antenna radiator are direct-connected connection.
The metal back cover of the mobile terminal is made of upper metal derby 1401 and lower metal derby 1404, wherein upper metal derby
1401 area is bigger than the area of lower metal derby 1404, has Insulating gap between upper metal derby 1401 and lower metal derby 1404
(insulating materials such as plastics can be inserted in Insulating gap), in this case, larger 1401 conduct of upper metal derby of area
The grounding parts of the mobile terminal antenna, antenna radiator of the smaller lower metal derby 1404 of area as the mobile terminal antenna.
Figure 15 is that (first antenna radiator and the second antenna radiator are LOOP types to mobile terminal antenna shown in Figure 14
Antenna radiator, i.e., double LOOP antennas) design sketch under low frequency (824MHz~960MHz), show that expression is double in figure
The curve 1501 of the relationship of antenna efficiency and working frequency range of the LOOP antennas under free space (free space) indicates tradition
The curve 1502 of the relationship of antenna efficiency and working frequency range of the antenna under free space (free space) indicates traditional day
The curve 1503 of the relationship of antenna efficiency and working frequency range of the line at BHHR indicates antenna effect of double LOOP antennas at BHHR
The curve 1504 of rate and the relationship of working frequency range, the relationship for indicating double antenna efficiencies and working frequency range of the LOOP antennas at BHHL
Curve 1505 and indicate antenna efficiency and working frequency range of the traditional antenna at BHHL relationship curve 1506.
It can be seen that by the curve 1501-1506 in figure, antenna efficiency difference of the traditional antenna at BHHR and BHHL exists
Reach maximum value when 960MHz, be 9db, antenna efficiency difference of double LOOP antennas at BHHR and BHHL in 960MHz most
Greatly, it is 2db, it is seen then that for traditional antenna, the antenna of double LOOP antennas of the embodiment of the present invention at BHHR and BHHL
Efficiency variance smaller, thus, double LOOP antennas of the embodiment of the present invention have higher antenna efficiency, can avoid human hand or
When the number of people is near or adjacent to antenna, the problem of antenna is to the receptivity reduction of signal or aerial signal fast-fading can be caused.
Figure 16 is in the embodiment of the present invention, and mobile terminal antenna schematic diagram when mobile terminal includes a metal back cover connects
Ground portion, antenna feed 1602, antenna-matching circuit 1603, feeder equipment 1604, antenna radiator, the first ground connection 1606 and of branch
Second ground connection branch 1607, wherein the connection that antenna radiator is fed device and antenna radiator is pointed out and is divided into first day
Beta radiation body 16051 and the second antenna radiator 16052, first ground connection branch 1606 both ends respectively with grounding parts and first day
Beta radiation body 16051 be connected, second ground connection branch 1607 both ends respectively with 16052 phase of grounding parts and the second antenna radiator
Even, first antenna radiator 16051 and first is grounded branch 1606 and collectively forms LOOP type antenna radiators, the second antenna
Radiator 16052 and second is grounded branch 1607 and collectively forms LOOP type antenna radiators, the feed of the mobile terminal antenna
Device 1604 is that slot-coupled is connect with the connection type of antenna radiator.
The metal back cover of the mobile terminal is made of upper metal derby 1601 and lower metal derby 1605, wherein upper metal derby
1601 area is bigger than the area of lower metal derby 1605, has Insulating gap between upper metal derby 1601 and lower metal derby 1605
(insulating materials such as plastics can be inserted in Insulating gap), in this case, larger 1601 conduct of upper metal derby of area
The grounding parts of the mobile terminal antenna, antenna radiator of the smaller lower metal derby 1605 of area as the mobile terminal antenna.
Figure 17 is that (first antenna radiator and the second antenna radiator are LOOP types to mobile terminal antenna shown in Figure 16
The connection type of antenna radiator, feeder equipment is slot-coupled connection type, i.e., double LOOP slot-coupled antennas) in low frequency
Design sketch under (824MHz~960MHz) shows in figure the double LOOP slot-coupled antennas of expression in free space (free
Space the curve 1703 of the relationship of antenna efficiency and working frequency range under) indicates traditional antenna in free space (free
Space the curve 1701 of the relationship of antenna efficiency and working frequency range under), indicate antenna efficiency of the traditional antenna at BHHR with
The curve 1706 of the relationship of working frequency range indicates double antenna efficiencies and working frequency range of the LOOP slot-coupled antennas at BHHR
The curve 1705 of relationship indicates pair song of the relationship of antenna efficiencies and working frequency range of the LOOP slot-coupled antennas at BHHL
The curve 1702 of the relationship of the antenna efficiency and working frequency range of line 1704 and expression traditional antenna at BHHL.
It can be seen that by the curve 1701-1706 in figure, antenna efficiency difference of the traditional antenna at BHHR and BHHL is maximum
Value is 12db, and antenna efficiency difference maximum value of double LOOP slot-coupled antennas at BHHR and BHHL is 1db, it is seen then that opposite
For traditional antenna, the antenna efficiency difference of double LOOP slot-coupled antennas of the embodiment of the present invention at BHHR and BHHL is more
It is small, also, antenna efficiency average value of double LOOP slot-coupled antennas in BHHR and BHHL increases 2db than traditional antenna, because
And double LOOP slot-coupled antennas of the embodiment of the present invention have higher antenna efficiency, can avoid human hand or the number of people leans on
When closely or close to antenna, the problem of antenna is to the receptivity reduction of signal or aerial signal fast-fading can be caused.
The embodiment 2 and embodiment 1 of mobile terminal antenna of the present invention have similarity, in embodiment 2 it is not exhaustive it
Place is with reference to the associated description in embodiment 1.
3rd embodiment：
In a kind of mobile terminal embodiment 1 of the present invention, mobile terminal includes mobile terminal antenna, mobile terminal antenna
May include：
Grounding parts, antenna feed, antenna-matching circuit, feeder equipment, antenna radiator.
Grounding parts, antenna feed, antenna-matching circuit, the connection relation of feeder equipment and antenna radiator are as follows：
First connecting pin of antenna feed is connected with grounding parts, and at tie point by grounded part at the first grounding parts and
Second grounding parts, second connection end are connected with the first connecting pin of antenna-matching circuit；The second connection end of antenna-matching circuit
It is connected with the first connecting pin of feeder equipment；The second connection end of feeder equipment is connected with the antenna radiator, and is connecting
Antenna radiator is divided into first antenna radiator and the second antenna radiator at point.
Wherein, the length g of the first grounding parts and length h of the second grounding parts meets condition 0.5g ＜ h ＜ 2g, first day
Beta radiation body and the second antenna radiator are distributed in the left and right sides of the tie point of antenna feed and grounding parts respectively, in the present invention
Optimum embodiment in, the length h of the length g of the first grounding parts 1011 and the second grounding parts 1012 meets condition g=h.
The length n of the first antenna radiator and length m of the second antenna radiator meets condition 0.5m ＜ n ＜ 2m, at this
In the optimum embodiment of invention, the length m of the length n of first antenna radiator 1051 and the second antenna radiator 1052 meets
Condition m=n, the resonant frequency p of first antenna radiator and the resonant frequency q of the second antenna radiator meet condition 0.5q ＜ p
＜ 2q.
Fourth embodiment：
In a kind of mobile terminal embodiment 2 of the present invention, the connection type of feeder equipment and antenna radiator is direct-connected
Connection or slot-coupled connection.
Wherein, mobile terminal antenna can be operated in different systems, such as GSM, TD, WCDMA, LTE, can also work
In different antenna bands, such as GSM850MHz~GSM900MHz low-frequency ranges or GSM1800MHz~GSM1900MHz it is contour
Frequency range.
In embodiments of the present invention, first antenna radiator and the second antenna radiator can be the antenna spokes of same type
It can be monopole that beam, which can also be different types of antenna radiator, i.e. first antenna radiator and the second antenna radiator,
Any one in Monopole types, PIFA types, IFA types, ring-type LOOP types, G types, F types or two types day
The combination of beta radiation body.
In embodiments of the present invention, coupling point can be increased separately on first antenna radiator and the second antenna radiator
Branch, thus, mobile terminal antenna in the embodiment of the present invention can also include third antenna radiator and the 4th antenna radiator,
Third antenna radiator is connected with grounding parts respectively with the 4th antenna radiator, and respectively with first antenna radiator and second day
Beta radiation body forms coupled antenna radiator, and frequency can be expanded by coupling branch's third antenna radiator and the 4th antenna radiator
Band, third antenna radiator and the 4th antenna radiator can be tuned in low frequency or high frequency.
In most highly preferred embodiment of the invention, third antenna radiator and the 4th antenna radiator are relative to grounding parts and day
The tie point of line feed is symmetrical.
In embodiments of the present invention, when mobile terminal include a metal center, also, the metal center include a short side,
When the metal center is equipped with breakpoint at the both ends of the short side, then the short side in the metal center is antenna radiator, the metal
Rest part in center except short side is connected with grounding parts；When mobile terminal includes a metal back cover, also, the metal back cover point
For upper and lower two blocks of metal derbies, having Insulating gap between upper and lower two blocks of metal derbies, (Insulating gap can be with insulation such as filled plastics
Material), then in two blocks of metal derbies up and down of the metal back cover, the larger metal derby of area is grounding parts, the smaller gold of area
Category block is antenna radiator.
The mobile terminal embodiment of the present invention and the embodiment of mobile terminal antenna have similarity, to mobile terminal reality
The not exhaustive place in example is applied, with reference to the associated description of mobile terminal antenna embodiment.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities
In any this actual relationship.Moreover, the terms "include", "comprise" or its any other variant are intended to nonexcludability
Include but also include not having so that article or terminal device including a series of elements include not only those elements
There is the other element being expressly recited, or further includes for this article or the intrinsic element of terminal device.Do not having more
In the case of more limitations, the element that is limited by sentence "including a ...", it is not excluded that including the element article or
There is also other identical elements in person's terminal device.
Above to a kind of mobile terminal antenna provided by the present invention and a kind of mobile terminal, it is described in detail, this
Specific case is applied in text, and principle and implementation of the present invention are described, the explanation of above example is only intended to
It facilitates the understanding of the method and its core concept of the invention；Meanwhile for those of ordinary skill in the art, think of according to the present invention
Think, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as pair
The limitation of the present invention.
Claims (8)
1. a kind of mobile terminal antenna, which is characterized in that including：
Grounding parts, antenna feed, antenna-matching circuit, feeder equipment, antenna radiator；
First connecting pin of the antenna feed is connected with the grounding parts, and at tie point by the grounded part at first
Grounding parts and the second grounding parts, second connection end are connected with the first connecting pin of the antenna-matching circuit；The antenna match
The second connection end of circuit is connected with the first connecting pin of the feeder equipment；The second connection end of the feeder equipment with it is described
Antenna radiator is connected, and the antenna radiator is divided into first antenna radiator and the second aerial radiation at tie point
Body；
The connection type of the feeder equipment and the antenna radiator is that direct-connected connection or slot-coupled connect；
Wherein, the length h of the length g of first grounding parts and second grounding parts meets condition 0.5g ＜ h ＜ 2g；It is described
First antenna radiator and second antenna radiator are distributed in the tie point of the antenna feed and the grounding parts respectively
The left and right sides；The length m of the length n of the first antenna radiator and second antenna radiator meets condition 0.5m ＜
N ＜ 2m；The resonant frequency p of the first antenna radiator and the resonant frequency q of second antenna radiator meet condition
0.5q ＜ p ＜ 2q；So that the electric field on the mobile terminal antenna disperses toward the left and right sides of the grounding parts.
2. mobile terminal antenna according to claim 1, which is characterized in that the length g of first grounding parts and described
The length h of second grounding parts meets condition g=h.
3. mobile terminal antenna according to claim 1, which is characterized in that the length n of the first antenna radiator and
The length m of second antenna radiator meets condition m=n.
4. mobile terminal antenna according to claim 1, which is characterized in that further include third antenna radiator and the 4th day
Beta radiation body, the third antenna radiator are connected with the grounding parts respectively with the 4th antenna radiator, and respectively with
The first antenna radiator and second antenna radiator form coupled antenna radiator.
5. mobile terminal antenna according to claim 1, which is characterized in that the mobile terminal antenna setting is mobile whole
In end, the mobile terminal includes a metal center, and the metal center includes a short side, and the metal center is described short
Breakpoint is equipped at the both ends on side, then the short side is the antenna radiator, remaining of the metal center in addition to the short side
Part is connected with the grounding parts.
6. mobile terminal antenna according to claim 1, which is characterized in that the mobile terminal antenna setting is mobile whole
In end, the mobile terminal includes a metal back cover, and the metal back cover is divided into two blocks of metal derbies up and down, at described two pieces up and down
There is Insulating gap between metal derby, then in two blocks of metal derbies up and down, the larger metal derby of area is the grounding parts,
The smaller metal derby of area is the antenna radiator.
7. mobile terminal antenna according to claim 4, which is characterized in that the third antenna radiator and the described 4th
Antenna radiator is symmetrical relative to the tie point of the grounding parts and the antenna feed.
8. a kind of mobile terminal, which is characterized in that the mobile terminal includes as the movement of claim 1-7 any one of them is whole
Hold antenna.
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| CN201510736826.9A CN105826661B (en) | 2015-10-30 | 2015-10-30 | A kind of mobile terminal antenna and mobile terminal |
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| CN201510736826.9A CN105826661B (en) | 2015-10-30 | 2015-10-30 | A kind of mobile terminal antenna and mobile terminal |
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| CN105826661A CN105826661A (en) | 2016-08-03 |
| CN105826661B true CN105826661B (en) | 2018-10-19 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107799909B (en) * | 2016-09-01 | 2021-02-05 | 深圳富泰宏精密工业有限公司 | Antenna structure and wireless communication device with same |
| CN106953158B (en) * | 2017-01-19 | 2020-08-21 | 瑞声科技(新加坡)有限公司 | Antenna and mobile terminal |
| US11069955B2 (en) | 2017-03-20 | 2021-07-20 | Huawei Technologies Co., Ltd. | Antenna of mobile terminal and mobile terminal |
| CN107483694B (en) * | 2017-07-31 | 2021-05-28 | 维沃移动通信有限公司 | Antenna control method and mobile terminal |
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| CN105826661A (en) | 2016-08-03 |
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