CN110534893A - A kind of multiple antennas for mobile communication FDD and TDD frequency range - Google Patents
A kind of multiple antennas for mobile communication FDD and TDD frequency range Download PDFInfo
- Publication number
- CN110534893A CN110534893A CN201910901705.3A CN201910901705A CN110534893A CN 110534893 A CN110534893 A CN 110534893A CN 201910901705 A CN201910901705 A CN 201910901705A CN 110534893 A CN110534893 A CN 110534893A
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- Prior art keywords
- radiating slot
- short circuit
- antenna
- length
- frequency range
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
-
- 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
- H01Q13/106—Microstrip slot antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
-
- 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
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
-
- 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
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
-
- 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
- H01Q9/06—Details
- H01Q9/065—Microstrip dipole antennas
Abstract
The present invention discloses a kind of multiple antennas for mobile communication FDD and TDD frequency range, comprising: metal floor, the metal floor are etched with the first U-shaped radiating slot and the second U-shaped radiating slot；Medium substrate, the medium substrate upper surface are printed with feed structure, and the medium substrate lower surface is printed with the first microstrip structure, the second microstrip structure and third microstrip structure, and the third microstrip structure includes four identical radiating elements；Multiple first short circuit metallic columns；Multiple second short circuit metallic columns.The antenna is integrated with two dual-band PIFA antenna units and a wide-band dipolar antenna unit, and using load, U-shaped is stitched to realize double frequency, the frequency bandwidth of four equivalent great extended antennas of electrical dipole antenna in PIFA antenna radiation unit.Reasonably layout effectively reduces the coupling between antenna between antenna.The antenna structure is compact, radiance is good, structure is simple, easy to make, low in cost.
Description
Technical field
It is the present invention relates to the technical field of antenna technology, in particular to a kind of for the more of mobile communication FDD and TDD frequency range
Antenna.
Background technique
With the fast development of the communication technology, in order to meet multiple frequency ranges, the communication need of multiple use generally requires handle
A variety of different antennas are integrated into an antenna system.Since antenna is towards miniaturization, wideband, multifrequencyization development, in order to
The integrated design of multiaerial system is further increased, how antenna system meets different function in a limited space, different
Influencing each other as a great problem between band antenna and reduction antenna.
Summary of the invention
The present invention is directed to the studies above problem, discloses a kind of multiple antennas for mobile communication FDD and TDD frequency range, should
Antenna is integrated with two dual-band PIFA antenna units and a wide-band dipolar antenna unit, using load in PIFA aerial radiation list
U-shaped seam is in member to realize double frequency, the frequency bandwidth of four equivalent great extended antennas of electrical dipole antenna.It is closed between antenna
The layout of reason effectively reduces the coupling between antenna.Structure of the invention is compact, radiance is good, structure is simple, it is easy to make,
It is low in cost.
The present invention provides a kind of multiple antennas for mobile communication FDD and TDD frequency range characterized by comprising
Metal floor, the metal floor are etched with the first U-shaped radiating slot and the second U-shaped radiating slot, the first U
The center line symmetrical setting of shape radiating slot and the second U-shaped radiating slot about antenna；
Medium substrate, the medium substrate upper surface are printed with feed structure, and the medium substrate lower surface is printed with
One microstrip structure, the second microstrip structure and third microstrip structure, first microstrip structure and the second microstrip structure are square
The center line symmetrical setting of shape and first microstrip structure and the second micro-strip mechanism about antenna, the third microstrip structure packet
Include four identical radiating elements；
Multiple first short circuit metallic columns, the first short circuit metallic column be set to the metal floor and the medium substrate it
Between, and for connecting the metal floor and first microstrip structure；
Multiple second short circuit metallic columns, the second short circuit metallic column be set to the metal floor and the medium substrate it
Between, and for connecting the metal floor and second microstrip structure；
First coaxial inner conductor is set between the metal floor and the medium substrate, and for connecting the first U
Shape radiating slot and first microstrip structure；
Second coaxial inner conductor is set between the metal floor and the medium substrate, and for connecting the 2nd U
Shape radiating slot and second microstrip structure；
Coaxial outer conductor is set between the metal floor and the medium substrate, and for connecting the metal floor
With the feed structure.
In some embodiments, third microstrip structure be set to antenna center line and center line about antenna it is symmetrical.
In some embodiments, feed structure is T shape.
In some embodiments, feed structure includes orthogonal first feed structure and the second feed structure, institute
The length T1 for stating the first feed structure is 12.3mm, and width T2 is 2.7mm, and the length T3 of second feed structure is
10.0mm, width T4 are 2.5mm.
In some embodiments, the first short circuit metallic column is cylinder, the circumference of the first short circuit metallic column and institute
The edge for stating the first microstrip structure is tangent；The second short circuit metallic column is cylinder, the circumference of the second short circuit metallic column
It is tangent with the edge of second microstrip structure.
In some embodiments, the first short circuit metallic column includes four, the spacing between the first short circuit metallic column
M1 is 12.9mm；The second short circuit metallic column includes four, and the spacing M1 between the second short circuit metallic column is 12.9mm.
In some embodiments, the first coaxial inner conductor is cylinder, and first coaxial inner conductor is set to described the
The centre of one U-shaped radiating slot and tangent with the first U-shaped radiating slot；Second coaxial inner conductor is cylinder, institute
The second coaxial inner conductor is stated set on the centre of the second U-shaped radiating slot and tangent with the second U-shaped radiating slot.
In some embodiments, the length P1 of the first microstrip structure is 60.0mm, and width is that P2 is 40.0mm；Described
The length P3 of two microstrip structures is 63.8mm, and width is that P2 is 40.0mm；The first U-shaped radiating slot includes successively vertically connecting
The first radiating slot, the second radiating slot and the third radiating slot connect, the length U1 of first radiating slot are
33.0mm, width U3 are 4.0mm, and the length U4 of second radiating slot is 21.0mm, and width U5 is 6.0mm, described first
The length U1 of radiating slot is 33.0mm, and width U3 is 4.0mm；The second U-shaped radiating slot includes successively connected vertically
4th radiating slot, the 5th radiating slot and the 6th radiating slot, the length U1 of the 4th radiating slot is 33.0mm, wide
Degree U3 is 4.0mm, and the length U4 of the 5th radiating slot is 21.0mm, and width U5 is 6.0mm, the 6th radiating slot
Length U1 is 33.0mm, and width U3 is 4.0mm.
In some embodiments, radiating element includes the first radiating element and the second radiating element, first radiation
Element is L shape, and second radiating element includes successively the first rectangular portion connected vertically, the second rectangular portion, third rectangular portion
And the 4th rectangular portion.
In some embodiments, the width W2 of the first radiating element is 0.8mm, and the width W1 of first rectangular portion is
1.5mm, the length L2 of the second rectangular portion are 21.9mm, and the length L3 of third rectangular portion is 11.7mm.
The utility model has the advantages that
1, dual-band PIFA antenna of the present invention realizes antenna miniaturization, double frequency by opening U-shaped seam in radiating surface
Change；
2, multifrequency antenna of the present invention is equivalent to four electric dipoles, realizes antenna in the broadband of TDD frequency range；
3, the height of the antenna is only 0.1 times of maximum functional wavelength, less than other antennas of same type；
4,7 frequency ranges such as operating frequency of antenna covering FDD, TDD of the present invention；
5, antenna belonging to the present invention can realize the maximum actual gain of 3.1dBi in peak low band, can realize in high band
The maximum actual gain of 10.2dBi；
6, antenna of the present invention can be integrated with one piece of medium substrate, and the processing is simple, light weight, can be applied to a variety of communications
Equipment.
Detailed description of the invention
Fig. 1 is that structure of one of an embodiment of the present invention for the multiple antennas of mobile communication FDD and TDD frequency range is shown
It is intended to；
Fig. 2 is the multiple antennas medium substrate that one of an embodiment of the present invention is used for mobile communication FDD and TDD frequency range
Top level structure schematic diagram；
Fig. 3 is the multiple antennas medium substrate that one of an embodiment of the present invention is used for mobile communication FDD and TDD frequency range
Infrastructure schematic diagram；
Fig. 4 is echo damage of one of an embodiment of the present invention for the multiple antennas of mobile communication FDD and TDD frequency range
The simulation result of consumption；
Fig. 5 be one of an embodiment of the present invention for the multiple antennas part of mobile communication FDD and TDD frequency range every
From simulation result；
Fig. 6 is practical increasing of one of an embodiment of the present invention for the multiple antennas of mobile communication FDD and TDD frequency range
Beneficial simulation result.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
As shown in Figure 1-3,
A kind of multiple antennas for mobile communication FDD and TDD frequency range, comprising:
Metal floor 8, the metal floor are etched with the first U-shaped radiating slot 5 and the second U-shaped radiating slot, and described
The center line symmetrical setting of one U-shaped radiating slot 5 and the second U-shaped radiating slot about antenna；
Medium substrate 7, the medium substrate upper surface are printed with feed structure 9, and the medium substrate lower surface is printed with
First microstrip structure 1, the second microstrip structure 2 and third microstrip structure 3, first microstrip structure 1 and the second microstrip structure 2
It is the center line symmetrical setting of rectangle and first microstrip structure 1 and the second micro-strip mechanism 2 about antenna, the third is micro-
Band structure 3 includes four identical radiating elements；
Multiple first short circuit metallic columns 4, the first short circuit metallic column 4 are set to the metal floor 8 and the medium base
Between plate 7, and for connecting the metal floor 8 and first microstrip structure 1；
Multiple second short circuit metallic columns, the second short circuit metallic column are set to the metal floor 8 and the medium substrate 7
Between, and for connecting the metal floor 8 and second microstrip structure 2；
First coaxial inner conductor 6 is set between the metal floor 8 and the medium substrate 7, and for connecting described the
One U-shaped radiating slot 5 and first microstrip structure 1；
Second coaxial inner conductor is set between the metal floor 8 and the medium substrate 7, and for connecting described the
Two U-shaped radiating slots and second microstrip structure 2；
Coaxial outer conductor 10 is set between the metal floor 8 and the medium substrate 7, and for connecting the metal
Floor 8 and the feed structure 9.
Wherein, the multiple antennas of the present embodiment use printed circuit board process, manufactured size be 260.0mm × 260.0mm ×
18.8mm, dielectric constant 4.4, loss angle tangent 0.02, having a size of 260.0mm × 260.0mm × 0.8mm double-side copper-applying
The radius of glass epoxy resin medium substrate, short circuit metallic column is 0.5mm, is highly 18.0mm, the size of metal floor is
260.0mm×260.0mm。
The antenna is integrated with two dual-band PIFA antenna units and one for working in 850/1800MHz and 900/1950MHz
A dipole antenna elements for working in 1900/2350/2600MHz.
Wherein, the first PIFA antenna element includes that metal floor 8, medium substrate 7, the first short circuit metallic column 4, first are same
Axis inner conductor 6 and the first microstrip structure 1；2nd PIFA antenna element includes metal floor 8, the 7, second short circuit of medium substrate
Metal column, the second coaxial inner conductor and the second microstrip structure 2；Dipole antenna elements include metal floor 8, medium substrate 7,
Coaxial outer conductor 10, feed structure 9 and third microstrip structure 3.
Further, third microstrip structure 3 be set to antenna center line and center line about antenna it is symmetrical.
Further, feed structure 9 is T shape.
Further, feed structure 9 includes orthogonal first feed structure and the second feed structure, first feedback
The length T1 of electric structure is 12.3mm, and width T2 is 2.7mm, and the length T3 of second feed structure is 10.0mm, width T4
For 2.5mm.
Further, the first short circuit metallic column 4 is cylinder, the circumference and described first of the first short circuit metallic column 4
The edge of microstrip structure 1 is tangent；The second short circuit metallic column be cylinder, the circumference of the second short circuit metallic column with it is described
The edge of second microstrip structure 2 is tangent.
Further, the first short circuit metallic column 4 includes four, and the spacing M1 between the first short circuit metallic column 4 is
12.9mm；The second short circuit metallic column includes four, and the spacing M1 between the second short circuit metallic column is 12.9mm.
Further, the first coaxial inner conductor 6 is cylinder, and first coaxial inner conductor 6 is set to the first U-shaped spoke
Penetrate the centre in gap 5 and tangent with the first U-shaped radiating slot 5；Second coaxial inner conductor is cylindrical, and described second
Coaxial inner conductor is set to the centre of the second U-shaped radiating slot and tangent with the second U-shaped radiating slot.
Further, the length P1 of 1 structure of the first micro-strip is 60.0mm, and width is that P2 is 40.0mm；Second micro-strip
The length P3 of structure is 63.8mm, and width is that P2 is 40.0mm；The first U-shaped radiating slot 5 includes successively connected vertically
First radiating slot, the second radiating slot and third radiating slot, the length U1 of first radiating slot is 33.0mm, wide
Degree U3 is 4.0mm, and the length U4 of second radiating slot is 21.0mm, and width U5 is 6.0mm, first radiating slot
Length U1 is 33.0mm, and width U3 is 4.0mm；The second U-shaped radiating slot includes successively the 4th radiating slot connected vertically
The length U1 of gap, the 5th radiating slot and the 6th radiating slot, the 4th radiating slot is 33.0mm, and width U3 is
4.0mm, the length U4 of the 5th radiating slot are 21.0mm, and width U5 is 6.0mm, the length U1 of the 6th radiating slot
It is 4.0mm for 33.0mm, width U3.
Further, radiating element includes the first radiating element and the second radiating element, and first radiating element is L
Shape, second radiating element include successively the first rectangular portion connected vertically, the second rectangular portion, third rectangular portion and the 4th
Rectangular portion.
Further, the width W2 of the first radiating element is 0.8mm, and the width W1 of first rectangular portion is 1.5mm, the
The length L2 of two rectangular portions is 21.9mm, and the length L3 of third rectangular portion is 11.7mm.
Embodiment is tested for the property:
Wherein, Fig. 4 is the return loss simulation result of embodiment multiaerial system different antennae unit.Dual-band PIFA antenna
For unit in the range of 0.825-0.876GHz and 1.618-1.987GHz, reflection coefficient is less than -6dB, and relative bandwidth is respectively
6.0% and 20.5%；Dual-band PIFA antenna unit is in the range of 0.882-0.957GHz and 1.837-2.251GHz, reflection system
Number is less than -6dB, and relative bandwidth is respectively 8.2% and 20.3%；Dipole antenna elements in the range of 1.600-2.947GHz,
Reflection coefficient is less than -6dB, relative bandwidth 59.2%；Multiple frequency ranges such as FDD frequency range and TDD in mobile communication can be covered.
Isolation simulation result of the Fig. 5 between embodiment multiaerial system different antennae unit.It can be seen that three antennas
Isolation between unit is respectively less than -15dB, and isolation effect is good.
Fig. 6 is embodiment multiple antennas different antennae unit respectively in the imitative of the far field actual emanations gain of respective working frequency range
True result.As can be seen that actual gain can achieve 3dB in 800-950MHz frequency range, it is practical in 1700~2000MHz frequency range
Gain can achieve 6dB, and in 2.3-2.6GHz frequency range, actual gain can achieve 10dB.
The multiple antennas working principle of the embodiment of the present invention is as follows:
Electromagnetic signal at coaxial feed port by inputting, wherein 1,2,3 ports are respectively dual-band PIFA antenna, double frequency
PIFA antenna and dipole antenna feed, the use of PIFA structure realize the miniaturization of antenna, on PIFA antenna radiation unit
U-shaped seam for realizing PIFA antenna double frequency.The influence that intercouples staggered relatively made between it of two antenna ground ends
It is minimum.Four radiating elements of dipole can be equivalent to four electric dipoles, be conducive to the bin width of extended antenna.
The above statement is only preferred embodiment of the invention, it is noted that those skilled in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these also should be regarded as protection of the invention
Within the scope of.
Claims (10)
1. a kind of multiple antennas for mobile communication FDD and TDD frequency range characterized by comprising
Metal floor (8), the metal floor are etched with the first U-shaped radiating slot (5) and the second U-shaped radiating slot, and described
The center line symmetrical setting of one U-shaped radiating slot (5) and the second U-shaped radiating slot about antenna；
Medium substrate (7), the medium substrate upper surface are printed with feed structure (9), and the medium substrate lower surface is printed with
First microstrip structure (1), the second microstrip structure (2) and third microstrip structure (3), first microstrip structure (1) and second
Microstrip structure (2) is that rectangle and first microstrip structure (1) and the second micro-strip mechanism (2) are symmetrical about the center line of antenna
Setting, the third microstrip structure (3) include four identical radiating elements；
Multiple first short circuit metallic columns (4), the first short circuit metallic column (4) are set to the metal floor (8) and the medium
Between substrate (7), and for connecting the metal floor (8) and first microstrip structure (1)；
Multiple second short circuit metallic columns, the second short circuit metallic column are set to the metal floor (8) and the medium substrate (7)
Between, and for connecting the metal floor (8) and second microstrip structure (2)；
First coaxial inner conductor (6) is set between the metal floor (8) and the medium substrate (7), and described for connecting
First U-shaped radiating slot (5) and first microstrip structure (1)；
Second coaxial inner conductor is set between the metal floor (8) and the medium substrate (7), and is used to connect described the
Two U-shaped radiating slots and second microstrip structure (2)；
Coaxial outer conductor (10) is set between the metal floor (8) and the medium substrate (7), and for connecting the gold
Possession plate (8) and the feed structure (9).
2. a kind of multiple antennas for mobile communication FDD and TDD frequency range according to claim 1, which is characterized in that described
Third microstrip structure (3) is set to the center line of antenna and center line about antenna is symmetrical.
3. a kind of multiple antennas for mobile communication FDD and TDD frequency range according to claim 1, which is characterized in that described
Feed structure (9) is T shape.
4. a kind of multiple antennas for mobile communication FDD and TDD frequency range according to claim 3, which is characterized in that described
Feed structure (9) includes orthogonal first feed structure and the second feed structure, the length T1 of first feed structure
It is 2.7mm for 12.3mm, width T2, the length T3 of second feed structure is 10.0mm, and width T4 is 2.5mm.
5. a kind of multiple antennas for mobile communication FDD and TDD frequency range according to claim 1, which is characterized in that described
First short circuit metallic column (4) is cylinder, the circumference of the first short circuit metallic column (4) and first microstrip structure (1)
Edge is tangent；The second short circuit metallic column is cylinder, the circumference of the second short circuit metallic column and the second micro-strip knot
The edge of structure (2) is tangent.
6. a kind of multiple antennas for mobile communication FDD and TDD frequency range according to claim 5, which is characterized in that described
First short circuit metallic column (4) includes four, and the spacing M1 between the first short circuit metallic column (4) is 12.9mm；Described second
Short circuit metallic column includes four, and the spacing M1 between the second short circuit metallic column is 12.9mm.
7. a kind of multiple antennas for mobile communication FDD and TDD frequency range according to claim 1, which is characterized in that described
First coaxial inner conductor (6) is cylinder, and first coaxial inner conductor (6) is set in the first U-shaped radiating slot (5)
Between and it is tangent with the first U-shaped radiating slot (5)；Second coaxial inner conductor is cylinder, described second it is coaxial in lead
Body is set to the centre of the second U-shaped radiating slot and tangent with the second U-shaped radiating slot.
8. a kind of multiple antennas for mobile communication FDD and TDD frequency range according to claim 1, which is characterized in that described
The length P1 of the first micro-strip (1) structure is 60.0mm, and width is that P2 is 40.0mm；The length P3 of second microstrip structure is
63.8mm, width are that P2 is 40.0mm；The first U-shaped radiating slot (5) include successively the first radiating slot connected vertically,
Second radiating slot and third radiating slot, the length U1 of first radiating slot are 33.0mm, and width U3 is 4.0mm,
The length U4 of second radiating slot is 21.0mm, and width U5 is 6.0mm, and the length U1 of first radiating slot is
33.0mm, width U3 are 4.0mm；The second U-shaped radiating slot includes successively the 4th radiating slot connected vertically, the 5th spoke
Penetrating gap and the 6th radiating slot, the length U1 of the 4th radiating slot is 33.0mm, and width U3 is 4.0mm, described the
The length U4 of five radiating slots is 21.0mm, and width U5 is 6.0mm, and the length U1 of the 6th radiating slot is 33.0mm, wide
Degree U3 is 4.0mm.
9. a kind of multiple antennas for mobile communication FDD and TDD frequency range according to claim 1, which is characterized in that described
Radiating element includes the first radiating element and the second radiating element, and first radiating element is L shape, second radiating element
Including successively the first rectangular portion connected vertically, the second rectangular portion, third rectangular portion and the 4th rectangular portion.
10. a kind of multiple antennas for mobile communication FDD and TDD frequency range according to claim 9, which is characterized in that institute
The width W2 for stating the first radiating element is 0.8mm, and the width W1 of first rectangular portion is 1.5mm, the length of the second rectangular portion
L2 is 21.9mm, and the length L3 of third rectangular portion is 11.7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910901705.3A CN110534893A (en) | 2019-09-23 | 2019-09-23 | A kind of multiple antennas for mobile communication FDD and TDD frequency range |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910901705.3A CN110534893A (en) | 2019-09-23 | 2019-09-23 | A kind of multiple antennas for mobile communication FDD and TDD frequency range |
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| Publication Number | Publication Date |
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| CN110534893A true CN110534893A (en) | 2019-12-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112909544A (en) * | 2021-02-08 | 2021-06-04 | 歌尔科技有限公司 | Electronic equipment and multi-antenna system thereof |
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2019
- 2019-09-23 CN CN201910901705.3A patent/CN110534893A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112909544A (en) * | 2021-02-08 | 2021-06-04 | 歌尔科技有限公司 | Electronic equipment and multi-antenna system thereof |
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Application publication date: 20191203 |