CN104183926B - A kind of slot antenna and intelligent terminal - Google Patents
A kind of slot antenna and intelligent terminal Download PDFInfo
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- CN104183926B CN104183926B CN201310189994.1A CN201310189994A CN104183926B CN 104183926 B CN104183926 B CN 104183926B CN 201310189994 A CN201310189994 A CN 201310189994A CN 104183926 B CN104183926 B CN 104183926B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
- H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/378—Combination of fed elements with parasitic elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
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- Electromagnetism (AREA)
- Waveguide Aerials (AREA)
- Details Of Aerials (AREA)
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Abstract
The invention discloses a kind of slot antenna, the slot antenna includes the low-frequency antenna and high frequency antenna being independently arranged, and the low-frequency antenna and the high frequency antenna are respectively provided with feed line, impedance matching network and feeding point；The feed line of the low-frequency antenna is electrically connected with the impedance matching network of the low-frequency antenna and feeding point；The feed line of the high frequency antenna is electrically connected with the impedance matching network of the high frequency antenna and feeding point；The low-and high-frequency antenna can be respectively arranged at surface layer and/or the bottom of printed circuit board (PCB).The present invention further simultaneously discloses a kind of intelligent terminal.Using technical solution of the present invention, the low-and high-frequency radiance of antenna can be improved, while meeting the job requirement of carrier aggregation technology and the volume requirement of intelligent terminal.
Description
Technical field
The present invention relates to antenna technology more particularly to a kind of slot antennas and intelligent terminal.
Background technique
With the rapid development of mechanics of communication, multi-mode coexisting is the inexorable trend of intelligent terminal development.In order to be mentioned to user
For more good broadband data service, the antenna of intelligent terminal needs work in broader frequency range.Prior art standard
In, the frequency range of various standards is different, such as: the frequency range of LTE low-frequency range is 698MHz to 787MHz, LTE high band
Frequency range is 2500MHz to 2690MHz, and the frequency range of GSM/UMTS850 is 824MHz to 894MHz, GSM900/
The frequency range of UMTS900 is 880MHz to 960MHz, and the frequency range of DCS1800 is 1710MHz to 1880MHz, PCS/
The frequency range of UMTS1900 is 1850MHz to 1990MHz, and the frequency range of UMTS2100 is 1920MHz to 2170MHz etc..
In addition, causing the antenna area useful space to get over due to the functional diversification of intelligent terminal, miniaturization, lightening development trend
Next smaller, the radiation efficiency and bandwidth of antenna are directly decided by the physical size and size of antenna, therefore multimode intelligent terminal is small
Type and broadband requirement bring stern challenge to Antenna Design.
In addition, being directed to growing mobile broadband service, existing long term evolution (LTE, Long Term Evolution)
The ability of single carrier is gradually unable to meet demand, and the frequency spectrum resource that operator is possessed is more dispersed, in order to effectively sharp
With frequency spectrum resource, 3GPP normal structure has also been proposed carrier wave polymerization (CA, Carrier Aggregation) technology.Carrier wave polymerization
It can be divided into and polymerize three kinds of polymerization methods, carrier wave polymerization with the polymerization of band continuous carrier, with the polymerization of band discontinuous carrier and different band carrier wave
Basic thought be base station while distributing to the multiple operational frequency bandwidths of terminal to guarantee higher data capability.In different band carrier wave
In polymerization, multiple operational frequency bandwidths can be located in different frequency bands, such as frequency range (824MHz-894MHz) and frequency range
The carrier wave of (1920MHz-2170MHz) polymerize, this also require antenna can work at the same time in high band (HB, High Band) and
In the frequency band of low-frequency range (LB, Low Band), more stringent requirements are proposed for performance and design to antenna.
Currently, in order to obtain broader bandwidth, intelligent terminal antenna generallys use monopole and couples the day of parasitic element
Line form, but such antenna is still difficult to cover full range bandwidth above-mentioned.Other broadband technologys, such as microstrip slot antenna, non-
Frequency becomes broad-band antenna etc., is often merely able to meet the requirement of high band, but be difficult to obtain good low frequency characteristic simultaneously.
Summary of the invention
In view of this, antenna can be improved the main purpose of the present invention is to provide a kind of slot antenna and intelligent terminal
Low-and high-frequency radiance, while being able to satisfy the job requirement of carrier aggregation technology and the volume requirement of intelligent terminal.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of slot antenna, the slot antenna includes the low-frequency antenna and high frequency antenna being independently arranged, described low
Frequency antenna and the high frequency antenna are respectively provided with feed line, impedance matching network and feeding point；The feed line of the low-frequency antenna
It is electrically connected with the impedance matching network of the low-frequency antenna and feeding point；The feed line of the high frequency antenna and the high frequency antenna
Impedance matching network and feeding point electrical connection.
Preferably, the low-frequency antenna and the high frequency antenna are set to printed circuit board (PCB, Printed Circuit
Board surface layer and/or bottom).
Preferably, the low-frequency antenna is set to the surface layer of the PCB, and the high frequency antenna is set to the bottom of the PCB
Layer；
Alternatively, the low-frequency antenna is set to the bottom of the PCB, the high frequency antenna is set to the surface layer of the PCB；
Alternatively, the low-frequency antenna and the high frequency antenna are all set in the surface layer of the PCB；
Alternatively, the low-frequency antenna and the high frequency antenna are all set in the bottom of the PCB.
Preferably, the low-frequency antenna is set to the surface layer of the PCB, and the high frequency antenna is set to the bottom of the PCB
When layer or the low-frequency antenna is set to the bottom of the PCB, described when the high frequency antenna is set to the surface layer of the PCB
Dielectric wall is additionally provided between the surface layer and bottom of PCB.
Preferably, the low-frequency antenna and the high frequency antenna be all set in the PCB surface layer or the low-frequency antenna
When being all set in the bottom of the PCB with the high frequency antenna, between the low-frequency antenna and the feed line of the high frequency antenna
Pass through the metal ground interval of the PCB.
Preferably, the low-frequency antenna is set to the surface layer of the PCB, and the high frequency antenna is set to the bottom of the PCB
When layer or the low-frequency antenna is set to the bottom of the PCB, described when the high frequency antenna is set to the surface layer of the PCB
Metal ground layer is additionally provided between the surface layer and bottom of PCB.
Preferably, the metal ground layer being arranged between the surface layer and bottom of the PCB passes through at least one via hole and institute
State the metal ground electrical connection of the metal ground on the surface layer of PCB and the bottom of the PCB.
Preferably, the slot antenna further includes filter network, and the filter network is set to the feedback of the low-frequency antenna
Between electric wire and the feed line of the high frequency antenna.
Preferably, the filter network is set to the impedance matching network and spoke of the low-frequency antenna and the high frequency antenna
On feed line between beam.
Preferably, the radiator of the low-frequency antenna and the high frequency antenna and the surface layer of the PCB and/or the gold of bottom
It is formed and is had the gap between the plane of possession.
Preferably, the slot antenna further includes the shared radio frequency being arranged for the low-frequency antenna and the high frequency antenna
Duplexer, the radio frequency duplexer switch the impedance with the low-frequency antenna and the high frequency antenna respectively by RF bidirectional
Distribution network connection；
The low-frequency antenna or the high frequency antenna are gated by controlling the RF bidirectional switch.
Preferably, the slot antenna further includes for the low-frequency antenna and the high frequency antenna respectively arranged radio frequency pair
The radio frequency duplexer of work device, the low-frequency antenna and the high frequency antenna respectively with the low-frequency antenna and the high frequency antenna
Impedance matching network connection.
A kind of intelligent terminal, the intelligent terminal include slot antenna described above.
Slot antenna and intelligent terminal provided by the present invention, the slot antenna include the low frequency day being independently arranged
Line and high frequency antenna, the low-frequency antenna and the high frequency antenna are respectively provided with feed line, impedance matching network and feeding point；Institute
The feed line for stating low-frequency antenna is electrically connected with the impedance matching network of the low-frequency antenna and feeding point；The feedback of the high frequency antenna
Electric wire is electrically connected with the impedance matching network of the high frequency antenna and feeding point；The low-and high-frequency antenna can be respectively arranged at printing
The surface layer of circuit board PCB and/or bottom.In this way, the present invention improves the low-and high-frequency radiance of slot antenna, meet simultaneously
The job requirement of carrier aggregation technology and the volume requirement of intelligent terminal.The present invention walks the high frequency cabling and low frequency of slot antenna
Line is arranged apart, and by independent feed line, impedance matching network and feeding point timesharing or works at the same time；The high frequency
Cabling and low frequency cabling can be by design debugging efforts in more preferably state.With traditional single feed point planar slot antenna phase
Than in the case where not increasing antenna area, improving the low-and high-frequency radiance of slot antenna, while meeting carrier wave polymerization skill
The job requirement of art.In addition, eliminating the expense of antenna holder and die sinking due to directly processing on PCB, reducing costs.
Also, the slot antenna have low section characteristic, slot antenna height it is low, can meet well end product broadband,
The design requirement of miniaturization.In addition, slot antenna of the present invention may be directly applied on the intelligent terminal with carrier wave aggregation features.
Detailed description of the invention
Fig. 1 is the two-dimensional structure schematic diagram of slot antenna of the present invention；
Fig. 2 is the operation schematic diagram of slot antenna low-and high-frequency cabling of the present invention；
Fig. 3 is the specific schematic diagram of slot antenna of several high and low frequency cablings of the embodiment of the present invention；
Fig. 4 is the schematic diagram that slot antenna of embodiment of the present invention high and low frequency cabling is located on the same floor；
Fig. 5 is the schematic diagram of low-and high-frequency cabling of the embodiment of the present invention with filter network；
Fig. 6 is the schematic diagram of low-and high-frequency cabling of the embodiment of the present invention with metal ground layer structure；
Fig. 7 is the system schematic that slot antenna of the present invention polymerize operating mode in multimode switching working mode and carrier wave.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention is further described in more detail.
The present invention provides a kind of slot antenna, the slot antenna includes the low-frequency antenna and high frequency being independently arranged
Antenna, the low-frequency antenna and the high frequency antenna are respectively provided with feed line, impedance matching network and feeding point；The low frequency day
The feed line of line is electrically connected with the impedance matching network of the low-frequency antenna and feeding point；The feed line of the high frequency antenna and institute
State impedance matching network and the feeding point electrical connection of high frequency antenna.
Specifically, the low-frequency antenna and the high frequency antenna are set to surface layer and/or the bottom of PCB.
Specifically, the low-frequency antenna is set to the surface layer of the PCB, the high frequency antenna is set to the bottom of the PCB
Layer；
Alternatively, the low-frequency antenna is set to the bottom of the PCB, the high frequency antenna is set to the surface layer of the PCB；
Alternatively, the low-frequency antenna and the high frequency antenna are all set in the surface layer of the PCB；
Alternatively, the low-frequency antenna and the high frequency antenna are all set in the bottom of the PCB.
Specifically, the low-frequency antenna is set to the surface layer of the PCB, the high frequency antenna is set to the bottom of the PCB
Layer or the low-frequency antenna are set to the bottom of the PCB, described when the high frequency antenna is set to the surface layer of the PCB
Metal ground layer is additionally provided between the surface layer and bottom of PCB.
Specifically, the radiator of the low-frequency antenna and the high frequency antenna and the surface layer of the PCB and/or the gold of bottom
It is formed and is had the gap between the plane of possession.
Fig. 1 is the two-dimensional structure schematic diagram of slot antenna of the present invention, wherein Fig. 1 (a) is the surface layer cabling schematic diagram of PCB,
Fig. 1 (b) is bottom cabling schematic diagram, and Fig. 1 (c) is the perspective view of the PCB comprising surface layer cabling and bottom cabling.
Specifically, Fig. 1 (a) is low-frequency antenna cabling schematic diagram, wherein the low-frequency antenna includes the metal on the surface layer PCB
Ground level 1, positioned at the metal antenna cabling (namely radiator) 2 in the surface layer PCB antenna headroom region, the feed of the low-frequency antenna
The feeding point 5 of line 3, the impedance matching network 4 of the low-frequency antenna and the low-frequency antenna.Here, the low-frequency antenna cabling
It can be made of, can also be made of the metal routing of multiple separations single continuous metal routing.The metal antenna cabling (
That is radiator) 2, feed line 3, impedance matching network 4 and feeding point 5 be electrical connected.
Specifically, Fig. 1 (b) is high frequency antenna cabling schematic diagram, wherein the high frequency antenna includes the metal of PCB bottom
Ground level 6, positioned at the metal antenna cabling (namely radiator) 7 in PCB bottom antenna headroom region, the feed of the high frequency antenna
The feeding point 10 of line 8, the impedance matching network 9 of the high frequency antenna and the high frequency antenna.Here, the high frequency antenna cabling
It can be made of single continuous metal routing, also having can be made of the metal routing of multiple separations.The metal antenna cabling
(namely radiator) 7, feed line 8, impedance matching network 9 and feeding point 10 are electrical connected.
Specifically, the low-frequency antenna is set to the surface layer of the PCB, the high frequency antenna is set to the bottom of the PCB
Layer or the low-frequency antenna are set to the bottom of the PCB, described when the high frequency antenna is set to the surface layer of the PCB
Dielectric wall is additionally provided between the surface layer and bottom of PCB.
Specifically, the slot antenna is processed on PCB, Fig. 1 (c) is to include low frequency surface layer cabling and high frequency bottom
The perspective view of the PCB of cabling, wherein low frequency surface layer Wiring structure indicates that high frequency bottom Wiring structure is used with full lines
Dashed line form indicates that by the insulation medium board interval of PCB, the dielectric is oxygen glass cloth for low frequency surface layer and high frequency bottom
It is laminated (FR4) material medium plate.Specifically, the low-and high-frequency antenna is by being formed between metal routing and PCB metal ground
Gap 12 is radiated.Further, the feed line of the high frequency antenna and low-frequency antenna, impedance matching network and feeding point exist
It is spaced apart, it works independently of one another.
Fig. 2 is the operation schematic diagram of the high frequency of slot antenna of the present invention, low frequency cabling, i.e., the transmitting of two stand-alone antennas is special
Property with frequency variation schematic diagram.Specifically, low-frequency antenna cabling and high frequency antenna cabling can tune respectively covers different frequencies
Section.Working frequency range boundary is separated from each other, as shown in Fig. 2 (a).Specifically, low-frequency antenna can cover LTE Band17 to GSM/
The frequency range of UMTS900, i.e. low-frequency antenna can cover 698MHz to 960MHz, and high frequency antenna can cover DCS1800 to LTE
The frequency range of Band7, i.e. high frequency antenna can cover 1710MHz to 2690MHz.The low-and high-frequency antenna can be by being spaced each other solely
The performance that vertical cabling and impedance matching network is optimal.Cooperate if being switched with RF bidirectional, it is double by controlling the radio frequency
The low-frequency antenna or the high frequency antenna are gated to switch, then the overall performance of slot antenna of the present invention will be than traditional list
The matched all frequency bands antenna of antenna list is more excellent.
In addition, the working frequency range boundary of the low-frequency antenna and high frequency antenna can partially overlap, such as shown in Fig. 2 (b)
F shown in Fig. 2 (b)1To f2, it can be achieved that low-frequency antenna and high frequency antenna work at the same time in frequency range.
Such as: low-frequency antenna can cover the frequency range of LTE Band17 to UMTS190, i.e. low-frequency antenna can cover 698MHz extremely
1990MHz, then low-frequency antenna and high frequency antenna are simultaneously operable in DCS1800 (1710MHz-1880MHz) and PCS/
UMTS1900(1850MHz-1990MHz)。
Fig. 3 is the specific schematic diagram of slot antenna of several high and low frequency cablings of the embodiment of the present invention.Specifically, Fig. 3 (a)
Give four kinds of low-frequency antenna cabling forms, it can be seen that different metal antenna cablings 2 and PCB metal ground 1 form
Different 12 structure of gap, for carrying out high frequency radiation.The feed line 3 of low-frequency antenna is used to feed for 12 structure of gap.
Similar, Fig. 3 (b) gives four kinds of high frequency antenna cabling forms, it can be seen that different metal antenna cablings 7 and PCB metal
Different 12 structures of gap is formd between ground level 6, for carrying out high frequency radiation；The feed line 8 of high frequency antenna is the seam
12 structure of gap feed.
Fig. 4 is the schematic diagram that slot antenna of embodiment of the present invention high frequency low frequency feed section is located on the same floor.Specifically, institute
It states low-frequency antenna and the high frequency antenna is all set in the surface layer of the PCB or the low-frequency antenna and the high frequency antenna are all provided with
When being placed in the bottom of the PCB, between the low-frequency antenna and the feed line of the high frequency antenna by the metal of the PCB
Interplanar every.As shown in figure 4, antenna height frequency range feed section is located at the same layer of PCB；Low-frequency antenna feed line 3 and high frequency
Antenna feeder 8 feeds gap 12 in different positions, make the corresponding Antenna Operation in the gap 12 in low-frequency range and
High band.Feed line 3 and impedance matching network 4, the feeding point 5 of low-frequency antenna are electrically connected, the feed line 8 of high frequency antenna and resistance
Anti- matching network 9, feeding point 10 are electrically connected；The electric connection is independent of each other.Low-frequency antenna feed line 3 and high frequency day
It is spaced between line feed line 8 by PCB metal ground 1.
In order to reduce the interference between low frequency cabling and high frequency cabling, further, the high frequency cabling and low frequency cabling
Between can also increase filter network.
Specifically, the slot antenna further includes filter network, the filter network is set to the feedback of the low-frequency antenna
Between electric wire and the feed line of the high frequency antenna.Specifically, the filter network is set to the low-frequency antenna and the height
On feed line between the impedance matching network and radiator of frequency antenna.Specifically, being arranged between the surface layer and bottom of the PCB
Metal ground layer pass through the metal ground on the surface layer of at least one via hole and the PCB and the gold of the bottom of the PCB
The electrical connection of possession plane.
Fig. 5 is the schematic diagram of low-and high-frequency cabling of the embodiment of the present invention with filter network.As shown in figure 5, in low frequency day
Increase filter network 13 between line feed line 3 and high frequency antenna feed line 8, the filter network 13 by via hole or can pass through
Metal routing and the low-frequency antenna feed line 3, high frequency antenna feed line 8 are electrically connected.The filter network 13 can be by collecting
Total capacitor and inductor element is constituted, and can also be realized by radio-frequency transmission line Wiring structure.
In the antenna cabling example of Fig. 3 (a) and Fig. 3 (b), when low-frequency range feed line and high band feed line are located at surface layer
With bottom same location, i.e., they when being overlapped on projecting direction, can using increase metal-layer structure come reduce therebetween
Interference.Fig. 6 is the schematic diagram of low-and high-frequency cabling of the embodiment of the present invention with metal ground layer structure, and in Fig. 6, left side is indicated
Surface layer low frequency cabling, right side indicate bottom high frequency cabling, and the low frequency feed line in left side and the high frequency feed line on right side are located at surface layer
With bottom same location, i.e., they on projecting direction when being overlapped, in addition to aforementioned corresponding surface layer bottom antenna cabling 2 and 7, feedback
Except electric wire 3 and 8, impedance matching network 4 and 9, feeding point 5 and 10, additional intermetallic metal stratum 14 is introduced in the pcb, such as Fig. 6
Shown in centre, shape with coating metal 1 and underlying metal it is 6 similar, but increase grounded metal in feed line and routing region
Cabling.The intermetallic metal stratum 14 is electrical connected by multiple via holes 15 and surface layer underlying metal, finally plays increase table
The effect of layer low-frequency antenna and the isolation of bottom high frequency antenna.
Specifically, the slot antenna further includes the shared radio frequency being arranged for the low-frequency antenna and the high frequency antenna
Duplexer, the radio frequency duplexer switch the impedance with the low-frequency antenna and the high frequency antenna respectively by RF bidirectional
Distribution network connection；
The low-frequency antenna or the high frequency antenna are gated by controlling the RF bidirectional switch.
Specifically, the slot antenna further includes for the low-frequency antenna and the high frequency antenna respectively arranged radio frequency pair
The radio frequency duplexer of work device, the low-frequency antenna and the high frequency antenna respectively with the low-frequency antenna and the high frequency antenna
Impedance matching network connection.
Fig. 7 is the system schematic that inventive antenna multimode switching working mode and carrier wave polymerize operating mode.Wherein, scheme
7 (a) be multimode switching working mode schematic diagram of the present invention, for shared the penetrating of the low-frequency antenna and high frequency antenna setting
Frequency duplexer, the radio frequency duplexer switch the impedance with the low-frequency antenna and the high frequency antenna respectively by RF bidirectional
Matching network connection；The low-frequency antenna or the high frequency antenna are gated by controlling the RF bidirectional switch.Specifically,
Low-frequency antenna (Ant_LB) and high frequency antenna (Ant_HB) respectively by independent impedance matching network (Match) 1, Match2 and
The same radio frequency two-way switch (Switch) is connected, the radio frequency two-way switch and radio frequency duplexer (Duplexer) connection, and
And by transmitting power amplifier (PA) and emit (Tx) link connection, by receiving low noise (LNA) and receiving (Rx) link connection.It is logical
The operating mode for selecting the radio frequency two-way switch and corresponding low-and high-frequency antenna are crossed, it can be achieved that cutting between terminal work mode
It changes, such as low frequency GSM850 mode and high frequency LTE Band7 model selection and switching.
In the case where carrier wave polymerize operating mode, since terminal needs to be communicated over a number of carriers simultaneously, multiple work frequencies
Rate bandwidth is located in different frequency bands, and therefore, The present invention gives a kind of radio frequency implementations: designing low-frequency range and high band
Radio-frequency transmissions independent of each other, receives link.As shown in Fig. 7 (b), radio frequency duplex is respectively set for low-frequency antenna and high frequency antenna
The resistance with the low-frequency antenna and the high frequency antenna respectively of the radio frequency duplexer of device, the low-frequency antenna and the high frequency antenna
Anti- matching network connection.Specifically, radio frequency duplexer is answered in low-frequency range (LB) transmitting, reception (Tx1, Rx1) link pair
(Duplxerl), power amplifier (PA1, LNA1)；High band (HB) transmitting, receives link (Tx2, Rx2) then correspond to radio frequency duplexer
(Duplxer2), power amplifier (PA2, LNA2)；Low-frequency range and high band transmitting receive respectively with low-frequency antenna (Ant_LB) and high frequency
Antenna (Ant_HB) is connected, to realize the operating mode of carrier wave polymerization.
Further, it can also configure the capacitor and inductor element across the lump in gap at the gap of slot antenna, pass through
The length for changing gap, is adjusted gap antenna resonant frequency, so, it is possible the freedom degree for increasing debugging slot antenna.
Using slot antenna of the invention, can gather in physically conveniently realize multimode switching and the carrier wave of very little
The operating mode of conjunction.
As it can be seen that plane compact type low-and high-frequency slot antenna proposed by the present invention divides the high frequency cabling of antenna and low frequency cabling
Arrangement is opened, and the low-and high-frequency radiativity of antenna is improved in the case where not increasing antenna area by independent power feeding line
Can, while meeting the job requirement of multimode switching and carrier aggregation technology.Since the antenna is directly processed on pcb board,
It is low in cost, and the characteristic with low section, antenna height is low, can meet smart terminal product broadband, small-sized well
The design requirement of change.
The present invention also describes a kind of intelligent terminal, and the intelligent terminal includes slot antenna described above.
Specifically, the intelligent terminal is mobile phone or notebook or personal digital assistant or tablet computer etc..
In addition, legend of the present invention is merely given as the simple form and connection schematic diagram of several antenna cablings, using the present invention
The other type geometric figures and placement position that do not mention, or to any shape made by geometric figure and placement position of the invention
The modification of formula, is within the scope of the invention.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention, it is all
Made any modifications, equivalent replacements, and improvements etc. within the spirit and principles in the present invention, should be included in protection of the invention
Within the scope of.
Claims (12)
1. a kind of slot antenna, which is characterized in that the slot antenna includes the low-frequency antenna being independently arranged and high frequency day
Line, the low-frequency antenna and the high frequency antenna are respectively provided with the metal ground of PCB bottom and/or surface layer, are located at PCB bottom
Or metal antenna cabling, feed line, impedance matching network and the feeding point in surface layer antenna headroom region；The feedback of the low-frequency antenna
Electric wire, the low-frequency antenna metal antenna cabling be electrically connected with the impedance matching network of the low-frequency antenna and feeding point；Institute
State the feed line, the metal antenna cabling of the high frequency antenna and the impedance matching network of the high frequency antenna and feedback of high frequency antenna
Electricity point electrical connection, the metal antenna cabling of the low-frequency antenna and the high frequency antenna and the surface layer of the PCB and/or bottom
It is formed and is had the gap between metal ground, the feed line of the low-frequency antenna and the high frequency antenna is used to carry out the gap
Feed.
2. slot antenna according to claim 1, which is characterized in that the low-frequency antenna is set to the surface layer of the PCB,
The high frequency antenna is set to the bottom of the PCB；
Alternatively, the low-frequency antenna is set to the bottom of the PCB, the high frequency antenna is set to the surface layer of the PCB；
Alternatively, the low-frequency antenna and the high frequency antenna are all set in the surface layer of the PCB；
Alternatively, the low-frequency antenna and the high frequency antenna are all set in the bottom of the PCB.
3. slot antenna according to claim 2, which is characterized in that the low-frequency antenna is set to the surface layer of the PCB,
When the high frequency antenna is set to the bottom of the PCB or the low-frequency antenna is set to the bottom of the PCB, the high frequency
When antenna is set to the surface layer of the PCB, dielectric wall is additionally provided between the surface layer and bottom of the PCB.
4. according to right want 2 described in slot antenna, which is characterized in that the low-frequency antenna and the high frequency antenna are all set in
When the surface layer of the PCB or the low-frequency antenna and the high frequency antenna are all set in the bottom of the PCB, the low-frequency antenna
Pass through the metal ground interval of the PCB between the feed line of the high frequency antenna.
5. according to claim 1,2 or 3 described in any item slot antennas, which is characterized in that the low-frequency antenna is set to institute
The surface layer of PCB is stated, when the high frequency antenna is set to the bottom of the PCB or the low-frequency antenna is set to the bottom of the PCB
Layer, when the high frequency antenna is set to the surface layer of the PCB, is additionally provided with metal Horizon between the surface layer and bottom of the PCB
Surface layer.
6. slot antenna according to claim 5, which is characterized in that the gold being arranged between the surface layer and bottom of the PCB
Possession plane layer is by the metal of the metal ground on the surface layer of at least one via hole and the PCB and the bottom of the PCB
Plane electrical connection.
7. slot antenna according to any one of claims 1 to 4, which is characterized in that the slot antenna further includes filtering
Network, the filter network are set between the feed line of the low-frequency antenna and the feed line of the high frequency antenna.
8. slot antenna according to claim 5, which is characterized in that the slot antenna further includes filter network, described
Filter network is set between the feed line of the low-frequency antenna and the feed line of the high frequency antenna.
9. slot antenna according to claim 7, which is characterized in that the filter network be set to the low-frequency antenna and
On feed line between the impedance matching network and radiator of the high frequency antenna.
10. slot antenna according to claim 7, which is characterized in that the slot antenna further includes for the low frequency day
Line and the high frequency antenna setting shared radio frequency duplexer, the radio frequency duplexer by RF bidirectional switch respectively with institute
Low-frequency antenna is stated to connect with the impedance matching network of the high frequency antenna；
The low-frequency antenna or the high frequency antenna are gated by controlling the RF bidirectional switch.
11. slot antenna according to claim 7, which is characterized in that the slot antenna further includes for the low frequency day
The radio frequency duplexer of line and the respectively arranged radio frequency duplexer of the high frequency antenna, the low-frequency antenna and the high frequency antenna point
It is not connect with the impedance matching network of the low-frequency antenna and the high frequency antenna.
12. a kind of intelligent terminal, which is characterized in that the intelligent terminal includes the described in any item gaps of claim 1 to 11
Antenna.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310189994.1A CN104183926B (en) | 2013-05-21 | 2013-05-21 | A kind of slot antenna and intelligent terminal |
| PCT/CN2013/081806 WO2013189375A2 (en) | 2013-05-21 | 2013-08-19 | Slot antenna and smart terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310189994.1A CN104183926B (en) | 2013-05-21 | 2013-05-21 | A kind of slot antenna and intelligent terminal |
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| Publication Number | Publication Date |
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| CN104183926A CN104183926A (en) | 2014-12-03 |
| CN104183926B true CN104183926B (en) | 2019-08-02 |
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| CN201310189994.1A Active CN104183926B (en) | 2013-05-21 | 2013-05-21 | A kind of slot antenna and intelligent terminal |
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| CN (1) | CN104183926B (en) |
| WO (1) | WO2013189375A2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104577322B (en) * | 2015-01-30 | 2017-06-23 | 东莞市仁丰电子科技有限公司 | A kind of two-in-one double-fed line multiband omni-directional high-gain PCB antenna |
| US9893793B2 (en) * | 2015-07-20 | 2018-02-13 | Mediatek Inc. | Multi-antenna system |
| CN105098356A (en) * | 2015-09-09 | 2015-11-25 | 天津七一二通信广播有限公司 | Ultraviolet (UV) frequency band and S frequency band dual-mode integrated antenna system applied to communication terminal |
| CN105826666B (en) * | 2016-02-01 | 2017-06-23 | 维沃移动通信有限公司 | A kind of mobile terminal |
| CN109273843B (en) * | 2018-09-19 | 2020-12-25 | 深圳市泰衡诺科技有限公司 | Antenna and mobile terminal |
| CN112952362B (en) * | 2019-12-10 | 2023-02-28 | 杭州海康威视数字技术股份有限公司 | Integrated antenna and electronic device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102884680A (en) * | 2010-05-10 | 2013-01-16 | 捷讯研究有限公司 | High isolation multiple port antenna array handheld mobile communication devices |
| EP2573873A1 (en) * | 2010-05-17 | 2013-03-27 | Panasonic Corporation | Antenna device and mobile wireless terminal with same mounted |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4197684B2 (en) * | 2005-03-23 | 2008-12-17 | 株式会社東芝 | Portable radio |
| CN2891322Y (en) * | 2006-03-14 | 2007-04-18 | 番禺得意精密电子工业有限公司 | Antenna |
| CN101494320A (en) * | 2008-01-22 | 2009-07-29 | 华硕电脑股份有限公司 | Tri-frequency antenna |
| CN102136624A (en) * | 2010-11-22 | 2011-07-27 | 华为终端有限公司 | Antenna and terminal with same |
| CN202444054U (en) * | 2012-02-16 | 2012-09-19 | 华为终端有限公司 | Antenna and mobile terminal |
-
2013
- 2013-05-21 CN CN201310189994.1A patent/CN104183926B/en active Active
- 2013-08-19 WO PCT/CN2013/081806 patent/WO2013189375A2/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102884680A (en) * | 2010-05-10 | 2013-01-16 | 捷讯研究有限公司 | High isolation multiple port antenna array handheld mobile communication devices |
| EP2573873A1 (en) * | 2010-05-17 | 2013-03-27 | Panasonic Corporation | Antenna device and mobile wireless terminal with same mounted |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104183926A (en) | 2014-12-03 |
| WO2013189375A3 (en) | 2014-04-17 |
| WO2013189375A2 (en) | 2013-12-27 |
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