CN105870593A - High-isolation carrier aggregation antenna employing coupled feeding and electronic device - Google Patents

High-isolation carrier aggregation antenna employing coupled feeding and electronic device Download PDF

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Publication number
CN105870593A
CN105870593A CN201610220785.2A CN201610220785A CN105870593A CN 105870593 A CN105870593 A CN 105870593A CN 201610220785 A CN201610220785 A CN 201610220785A CN 105870593 A CN105870593 A CN 105870593A
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China
Prior art keywords
metal framework
coupling part
gap
antenna
feed
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CN201610220785.2A
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Chinese (zh)
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CN105870593B (en
Inventor
徐利军
胡沥
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Shanghai Amphenol Airwave Communication Electronics Co Ltd
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Shanghai Amphenol Airwave Communication Electronics Co Ltd
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Priority to CN201610220785.2A priority Critical patent/CN105870593B/en
Publication of CN105870593A publication Critical patent/CN105870593A/en
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Publication of CN105870593B publication Critical patent/CN105870593B/en
Expired - Fee Related legal-status Critical Current
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; 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
    • H01Q1/243Supports; 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/50Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30Arrangements for providing operation on different wavebands
    • H01Q5/307Individual or coupled radiating elements, each element being fed in an unspecified way

Abstract

The invention provides a high-isolation carrier aggregation antenna employing coupled feeding and an electronic device. A metal frame is divided to a first metal frame segment and a second metal frame segment by a first gap and a second gap which are symmetrically formed in a bottom edge, the first metal frame segment is connected with a ground plate, an antenna clearance space is arranged between the bottom edge and the ground plate, an antenna assembly comprises a first coupling part and a second coupling part, the first coupling part and the second coupling part are both arranged in the antenna clearance space and are parallel to the second metal frame segment, a third gap is formed between the first coupling part and the second coupling part, one end, near to the first gap, of the second coupling part is connected with the second metal frame segment, one end, far away from the first gap, of the first coupling part is connected with a first feed part, one end of a first ground conduction band of a ground conduction band assembly is connected with a second gap end of the second metal frame segment, the other end of the second ground conduction band is connected with the ground plate, one end of a second ground conduction band is connected with a second gap end of the first metal frame segment, the other end of the second ground conduction band is connected with the ground plate, one end of a feed conduction band is connected with the first metal frame segment, and the other end of the feed conduction band is connected with a second feed part.

Description

A kind of high-isolation carrier aggregation antenna using couple feed and electronic equipment
Technical field
The present invention relates to mobile communication antenna technical field, in particular it relates to a kind of high isolation using couple feed Degree carrier aggregation antenna and electronic equipment.
Background technology
Along with the development of mobile Internet, data traffic requirement is explosive growth, to network capacity and transfer rate Requirement more and more higher.Have at present multiple technologies and can tackle these challenges, as magnanimity MIMO, carrier aggregation and Heterogeneous network deployment etc., wherein carrier aggregation (carrier aggregation) carries by the way of spread spectrum Rising network capacity and become one of maximally efficient means of reply data service explosive growth, carrier aggregation technology is Representative art in LTE-Advanced standard is bigger by multiple LTE member carriers are aggregating formation Bandwidth, it is achieved up-downgoing peak rate, up-downgoing peripheral speed increase exponentially.Carrier aggregation is generally divided into frequency range In the polymerization of interior continuous carrier, frequency range, discontinuous carrier is polymerized and across frequency range discontinuous carrier polymerization technique.At present, Main chip for cell phone manufacturer such as high passes etc. have developed the chip supporting carrier aggregation technology, for carrier aggregation technology Mobile phone is applied and provides condition, need badly according to the parameter about chip, for across frequency range discontinuous carrier Polymerization technique exploitation respective antenna, solves to cover the problem such as band bandwidth and double-fed interport isolation.
Summary of the invention
For defect of the prior art, it is an object of the invention to provide a kind of high-isolation using couple feed and carry Ripple polymerization antenna and electronic equipment.
A kind of high-isolation carrier aggregation antenna using couple feed provided according to the present invention, including: metal frame Frame, antenna module, ground connection guide module, feed conduction band, earth plate, the first current feed department, the second current feed department;
The base symmetry of described metal framework offers the first gap and the second gap, described first gap and the second gap will Described metal framework is divided into the first metal framework section and the second metal framework section, described first metal framework section and described ground connection Plate connects, and forms antenna clearance zone between base and the described earth plate of described metal framework;
Described antenna module includes that the first coupling part and the second coupling part, described first coupling part, the second coupling part are all located at In described antenna clearance zone and parallel with described second metal framework section, described first coupling part and described second coupling part it Between be provided with the 3rd gap, described second coupling part is connected with described second metal framework section near the one end in described first gap, Described first coupling part connects described first current feed department away from the one end in described first gap;
Described ground connection guide module includes the first ground connection conduction band, the second ground connection conduction band;One end of described first ground connection conduction band is even Connecing the second gap end of the second metal framework section, the other end connects described earth plate, and one end of described second ground connection conduction band is even Connecing the second gap end of the first metal framework section, the other end connects described earth plate;
One end of described feed conduction band connects described first metal framework section, and the other end connects described second current feed department;
Described first current feed department, the first coupling part, the second coupling part, the first metal framework section, the second metal framework section, First gap, ground connection guide module form the first resonance loop,
Described second current feed department, feed conduction band, the first metal framework section, the second metal framework section, the second gap, ground connection Guide module forms the second resonance loop.
As a kind of prioritization scheme, on the length direction on the base of described metal framework section, the length of described first coupling part Degree is more than the length of the second coupling part, and described second coupling part is located at described first coupling part and described second metal framework Between Duan.
As a kind of prioritization scheme, between described second coupling part and described second metal framework section, it is provided with the 4th gap;Institute State the width width more than described 3rd gap in the 4th gap.
As a kind of prioritization scheme, the quantity of described first ground connection conduction band is more than the quantity of described second ground connection conduction band.
As a kind of prioritization scheme, described first current feed department makes the humorous of described first resonance loop in the way of couple feed The frequency band that shakes covers low frequency and the intermediate frequency of 1700MHz-2170MHz of 820MHz-960MHz;Described second current feed department with The mode of direct feed makes the resonance band of described second resonance loop cover the high frequency of 2300MHz-2700MHz.
As a kind of prioritization scheme, also include USB component, described USB component be arranged at described antenna clearance zone in and with Described earth plate connects, and the described USB component of part is positioned at described antenna module and covers model in the projection of described antenna clearance zone In enclosing.
As a kind of prioritization scheme, described first coupling part sets near described USB component away from the one end in described first gap Put.
As a kind of prioritization scheme, also include loudspeaker assembly;Described loudspeaker assembly is connected with described earth plate, and institute The part stating loudspeaker assembly is positioned on described earth plate, and another part is positioned at described antenna clearance zone.
As a kind of prioritization scheme, described feed conduction band is " L " shape metal conduction band, long end and described second current feed department phase Even, short end is connected with described first metal framework section.
As a kind of prioritization scheme, improve described first resonance loop and the second resonant ring by multipoint earthing technology Isolation between road, the isolation between described first resonance loop and the second resonance loop is more than 16.5dB.
Based on same inventive concept, present invention also offers a kind of electronic equipment, including described a kind of employing couple feed High-isolation carrier aggregation antenna.
Compared with prior art, the present invention has a following beneficial effect:
The present invention is directed to the form that metal edge frame mobile phone top frame cracks, use two-terminal feeding model, one of them port (the One current feed department) use the mode of couple feed, cover low frequency (820MHz-960MHz) and intermediate frequency (1700MHz-2170 MHz), another port (the first current feed department) uses direct feed mode, covers high frequency (2300MHz-2700MHz), Being simultaneously introduced multiple earth point, improve the isolation between the two port, in frequency band, isolation is more than 16.5dB.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, in embodiment being described below required for make Accompanying drawing be briefly described, it is therefore apparent that below describe in accompanying drawing be only some embodiments of the present invention, For those skilled in the art, on the premise of not paying creative work, it is also possible to obtain according to these accompanying drawings Obtain other accompanying drawing.In accompanying drawing:
Fig. 1 is optional a kind of high-isolation carrier aggregation antenna plane structure chart using couple feed;
Fig. 2 the first current feed department and isolation between the second current feed department;
Fig. 3 is the return loss plot of the first current feed department;
The return loss plot of Fig. 4 the second current feed department;
Fig. 5, Fig. 6 are each frequency efficiency curve diagram.
In figure, 1-the first metal framework section, 2-earth plate, 3-the first gap, 4-the second gap, 5-the second metal frame Frame section, 6-USB assembly, 7-loudspeaker assembly, 8-the first current feed department, 9-the first coupling part, 10-the second coupling part, 11- Ground connection guide module, 12-the second current feed department, 13-feeds conduction band, 14-clearance zone.
Detailed description of the invention
Below in conjunction with accompanying drawing, in the way of specific embodiment, the present invention is described in detail.Following example will assist in this The technical staff in field is further appreciated by the present invention, but limits the present invention the most in any form.It should be pointed out that, also may be used To use other embodiment, or the embodiment enumerated herein is carried out amendment structurally and functionally, without departing from The scope of the present invention and essence.
The present invention provide a kind of high-isolation carrier aggregation antenna using couple feed embodiment in, as Fig. 1, Shown in 2, including: metal framework, antenna module, ground connection guide module 11, feed conduction band 13, earth plate 2, first Current feed department the 8, second current feed department 12;
The base symmetry of described metal framework offers the first gap 3 and the second gap 4, described first gap 3 and second Described metal framework is divided into the first metal framework section 1 and the second metal framework section 5, described first metal framework by gap 4 Section 1 is connected with described earth plate 2, forms antenna clearance zone between base and the described earth plate 2 of described metal framework;
Described antenna module includes the first coupling part 9 and the second coupling part 10, described first coupling part the 9, second coupling part 10 are all located in described antenna clearance zone and parallel with described second metal framework section 5, and described first coupling part 9 is with described Being provided with the 3rd gap between second coupling part 10, described second coupling part 10 is near the one end in described first gap 3 and institute Stating the second metal framework section 5 to be connected, described first coupling part 9 connects described first away from the one end in described first gap 3 Current feed department 8;
Described ground connection guide module 11 includes the first ground connection conduction band, the second ground connection conduction band;The one of described first ground connection conduction band End connects the second gap 4 end of the second metal framework section 5, and the other end connects described earth plate 2, and described second ground connection is led One end of band connects the second gap 4 end of the first metal framework section 1, and the other end connects described earth plate 2, described feed One end of conduction band 13 connects described first metal framework section 1, and the other end connects described second current feed department 12;
Described first current feed department the 8, first coupling part the 9, second coupling part the 10, first metal framework section the 1, second metal Frame section the 5, first gap 3, ground connection guide module 11 form the first resonance loop,
Described second current feed department 12, feed conduction band the 13, first metal framework section the 1, second metal framework section 5, second are stitched Gap 4, ground connection guide module 11 form the second resonance loop.
In the present embodiment, described metal framework is rectangle, and the base plate of described metal framework is rectangular minor face.In reality During border makes, this metal framework can be the outer rim of electronic equipment (such as mobile phone).
As optional a kind of embodiment, on the length direction on the base of described metal framework section, described first coupling part The length of 9 is more than the length of the second coupling part 10, and described second coupling part 10 is located at described first coupling part 9 and institute State between the second metal framework section 5.As shown in Figure 1, 2, the first coupling part 9 and the second coupling part 10 are long bonding jumper, And first described 3rd gap formed between coupling part 9 and the second coupling part 10 in the first coupling part 9 and the second coupling On portion 10 length direction, width is constant, for equidistant gap.
As optional a kind of embodiment, between described second coupling part 10 and described second metal framework section 5, it is provided with the Four gaps;The width in described 4th gap is more than the width in described 3rd gap.Described second coupling part 10 and described the The partial width that two metal framework sections 5 are connected can be identical with the width of described second coupling part 10 points.
As optional a kind of embodiment, the quantity of described first ground connection conduction band is more than the quantity of described second ground connection conduction band. Embodiment as depicted, the first ground connection conduction band is 3, and the second ground connection conduction band is 1.In another kind of embodiment, also Can be two the first ground connection conduction bands and a second ground connection conduction band.Described first ground connection conduction band is all disposed within described second gold medal Belong to the vicinity of framework the second gap 4 end.Antenna low-and high-frequency is gone back to the path on ground and is separated by the design of multiple ground connection conduction bands, energy Enough the isolation between two feed section is effectively improved.As optional a kind of embodiment, described first current feed department 8 make in the way of couple feed described first resonance loop resonance frequency band cover 820MHz-960MHz low frequency and The intermediate frequency of 1700MHz-2170MHz;Described second current feed department 12 makes described second resonant ring in the way of direct feed The resonance band on road covers the high frequency of 2300MHz-2700MHz.
As optional a kind of embodiment, also include that USB component 6, described USB component 6 are arranged at described antenna headroom Being connected in district and with described earth plate 2, the described USB component of part 6 is positioned at described antenna module at described antenna clearance zone Projection coverage in.Described first coupling part 9 away from the one end in described first gap 3 near described USB component 6 Arrange.
As optional a kind of embodiment, also include loudspeaker assembly 7;Described loudspeaker assembly 7 and described earth plate 2 Being connected, and a part for described loudspeaker assembly 7 is positioned on described earth plate 2, another part is positioned at described antenna headroom In district.
Described feed conduction band 13 is " L " shape metal conduction band, and long end is connected with described second current feed department 12, short end and institute State the first metal framework section 1 to be connected.The long limit of " L " shape structure of described feed conduction band 13 and the end of described metal framework Limit is parallel, and described second current feed department 12 points could be arranged to and described base vertical.As it is shown in figure 1, described feed Conduction band 13 and the second current feed department 12 points are all disposed within the clearance zone near described second gap 4.
Whole metal framework is divided into the first metal framework section 1 and the second metal framework by the 3, second gap 4, the first gap Section 5 two parts, wherein the first metal framework section 1 and earth plate 2 compact siro spinning technology, be also connected with feed conduction band 13.The Two metal framework sections 5 and coupling unit 10 connect, other first metal framework section the 1, second metal framework section 5 and ground connection Clearance zone 14, clearance zone 14 is had to be placed with loudspeaker assembly 7 and USB component 6, ground connection guide module 11 between plate 2 Being made up of 4 conduction bands, wherein 3, the left side is positioned on the left of the second gap 4, and one end is connected with the second metal framework section 5, The other end is connected with earth plate 2, and the 4th conduction band is positioned on the right side of the second gap 4, one end and the first metal framework section 1 phase Even, the other end is connected with earth plate 2.Carrier aggregation antenna in the present embodiment uses double-fed model, one of them end Mouth (the first feed section) uses couple feed form, widens the bandwidth of covering, and another port (holds the second feed section) Use and directly present form.Wherein, first current feed department the 8, first coupling unit the 9, second coupling unit the 10, first metal frame Frame section the 1, second metal framework section the 5, first gap 3 and ground connection guide module 11 form the first resonance loop, by end Connect a matching network so that it is resonance frequency band covers low frequency and intermediate frequency;Second current feed department 12, feed conduction band 13, first Metal framework section the 1, second metal framework section the 5, second gap 4 and ground connection guide module 11 form the second resonance loop, By one matching network of termination, high frequency can be covered.For the isolation between two feed section, we have employed As being made up of the multipoint earthing technology of conduction band 11 multiple conduction bands, the path that low-and high-frequency is returned ground is separated, and improves them Between isolation.
As a case study on implementation of the present invention, the present invention devises the carrier aggregation antenna of dual-feed, and is surveyed Examination.Fig. 3 is the return loss of the first feed section, and with the return loss of-5dB as reference point, low frequency covers 820MHz -960MHz, intermediate frequency covers 1700MHz-2170MHz.Fig. 4 is the second feed section return loss, returning with-5dB Ripple loss is reference point, and high frequency covers 2300MHz-2900MHz.Described first is improved by multipoint earthing technology Isolation between resonance loop and the second resonance loop, between described first resonance loop and the second resonance loop Isolation is more than 16.5dB.Fig. 2 is the isolation between two feed section, and isolation is worst more than 16.5dB.Figure 5, Fig. 6 is respectively the efficiency curve of Low Medium Frequency and high frequency, and each frequency efficiency is both greater than 40%.
Based on same inventive concept, present invention also offers a kind of electronic equipment, including described a kind of employing couple feed High-isolation carrier aggregation antenna.Described electronic equipment can be mobile phone, or panel computer, or radio, or PSP Deng mobile terminal, it is also possible to be other wireless transmitting-receiving equipments such as wireless senser.
The foregoing is only presently preferred embodiments of the present invention, those skilled in the art know, in the spirit without departing from the present invention In the case of scope, these features and embodiment can be carried out various change or equivalent.It addition, at this Under bright teaching, can modify these features and embodiment to adapt to particular situation and material without taking off From the spirit and scope of the present invention.Therefore, the present invention is not limited to the particular embodiment disclosed, all Fall into the embodiment in the range of claims hereof and broadly fall into protection scope of the present invention.

Claims (11)

1. the high-isolation carrier aggregation antenna using couple feed, it is characterised in that including: metal framework, Antenna module, ground connection guide module, feed conduction band, earth plate, the first current feed department, the second current feed department;
The base symmetry of described metal framework offers the first gap and the second gap, described first gap and the second gap will Described metal framework is divided into the first metal framework section and the second metal framework section, described first metal framework section and described ground connection Plate connects, and forms antenna clearance zone between base and the described earth plate of described metal framework;
Described antenna module includes that the first coupling part and the second coupling part, described first coupling part, the second coupling part are all located at In described antenna clearance zone and parallel with described second metal framework section, described first coupling part and described second coupling part it Between be provided with the 3rd gap, described second coupling part is connected with described second metal framework section near the one end in described first gap, Described first coupling part connects described first current feed department away from the one end in described first gap;
Described ground connection guide module includes the first ground connection conduction band, the second ground connection conduction band;One end of described first ground connection conduction band is even Connecing the second gap end of the second metal framework section, the other end connects described earth plate, and one end of described second ground connection conduction band is even Connecing the second gap end of the first metal framework section, the other end connects described earth plate;
One end of described feed conduction band connects described first metal framework section, and the other end connects described second current feed department;
Described first current feed department, the first coupling part, the second coupling part, the first metal framework section, the second metal framework section, First gap, ground connection guide module form the first resonance loop,
Described second current feed department, feed conduction band, the first metal framework section, the second metal framework section, the second gap, ground connection Guide module forms the second resonance loop.
A kind of high-isolation carrier aggregation antenna using couple feed the most according to claim 1, its feature Being, on the length direction on the base of described metal framework section, the length of described first coupling part is more than the second coupling part Length, and described second coupling part is located between described first coupling part and described second metal framework section.
A kind of high-isolation carrier aggregation antenna using couple feed the most according to claim 2, its feature It is, between described second coupling part and described second metal framework section, is provided with the 4th gap;The width in described 4th gap Width more than described 3rd gap.
A kind of high-isolation carrier aggregation antenna using couple feed the most according to claim 1, its feature Being, the quantity of described first ground connection conduction band is more than the quantity of described second ground connection conduction band.
A kind of high-isolation carrier aggregation antenna using couple feed the most according to claim 1, its feature Being, described first current feed department makes the resonance frequency band of described first resonance loop cover 820 in the way of couple feed The low frequency of MHz-960MHz and the intermediate frequency of 1700MHz-2170MHz;Described second current feed department is in the way of direct feed The resonance band making described second resonance loop covers the high frequency of 2300MHz-2700MHz.
A kind of high-isolation carrier aggregation antenna using couple feed the most according to claim 1, its feature It is, also includes that USB component, described USB component are arranged in described antenna clearance zone and are connected with described earth plate, The described USB component of part is positioned at the described antenna module projection coverage at described antenna clearance zone.
A kind of high-isolation carrier aggregation antenna using couple feed the most according to claim 6, its feature Being, described first coupling part is arranged near described USB component away from the one end in described first gap.
A kind of high-isolation carrier aggregation antenna using couple feed the most according to claim 1, its feature It is, also includes loudspeaker assembly;Described loudspeaker assembly is connected with described earth plate, and the one of described loudspeaker assembly Part is positioned on described earth plate, and another part is positioned at described antenna clearance zone.
A kind of high-isolation carrier aggregation antenna using couple feed the most according to claim 1, its feature Being, described feed conduction band is " L " shape metal conduction band, and long end is connected with described second current feed department, short end and described the One metal framework section is connected.
10. according to the arbitrary described a kind of high-isolation carrier aggregation antenna using couple feed of claim 1-9, It is characterized in that, by multipoint earthing technology improve between described first resonance loop and the second resonance loop every From the isolation between degree, described first resonance loop and the second resonance loop more than 16.5dB.
11. 1 kinds of electronic equipments, it is characterised in that include that a kind of employing the as described in claim 1-9 is arbitrary couples feedback The high-isolation carrier aggregation antenna of electricity.
CN201610220785.2A 2016-04-11 2016-04-11 A kind of high-isolation carrier wave polymerization antenna and electronic equipment Expired - Fee Related CN105870593B (en)

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