CN105990693B - Multiband dual polarized antenna - Google Patents
Multiband dual polarized antenna Download PDFInfo
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- CN105990693B CN105990693B CN201510093649.7A CN201510093649A CN105990693B CN 105990693 B CN105990693 B CN 105990693B CN 201510093649 A CN201510093649 A CN 201510093649A CN 105990693 B CN105990693 B CN 105990693B
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- ground strip
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- face
- piece
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Abstract
A kind of multiband dual polarized antenna includes a substrate, one earth element, one parasitic antenna, one first radiating element, and one second radiating element, the substrate includes one first face, and one in contrast to first face the second face, the earth element is formed in first face and including one first notch, one second notch, and two slits, first radiating element is formed in second face and including one first feed arm, and one first primary radiation piece, second radiating element is formed in second face and including one second feed arm, and one second primary radiation piece, and pass through the parasitic antenna, first notch, second notch, and two slits are to promote the isolation between first radiating element and second radiating element, and reach good matching effect in turn.
Description
Technical field
The present invention relates to a kind of antennas, more particularly to a kind of multifrequency with multiple frequency ranges and two different polarization directions
Section dual polarized antenna.
Background technique
General flat plane antenna is only capable of accomplishing single-frequency dual polarization or dual-band and dual-polarization mostly, although double frequency single-polarized antenna
There are two frequency band but the signals due to that can only receive/emit single direction for tool, if in use not by the double frequency single polarization
The reception of antenna/launch azimuth adjustment is correct, then is unable to reach ideal reception/launching effect, therefore for that can reach ideal
The effect of no dead angle reception/transmitting can maintain the application of double frequency-band again, and derive dual-band dual-polarized antenna.
Dual-band dual-polarized antenna can not only reach the signal of two different directions of reception/transmitting with promoted it is multi-faceted receive/
The effect of transmitting can reach the application of double frequency-band again, but since such antenna is designed as being made in using two radiators mostly
Same structure, although so the antenna can the multi-faceted signal of reception/transmitting be easy the signal in the presence of the grade radiators in same
Frequency range has the missing for the phenomenon that interfering with each other, and therefore, the design of the isolation of the grade radiators occupies certain importance, no
It is ideal not to the utmost then to will lead to reception/transmitting signal quality.
Summary of the invention
The purpose of the present invention is to provide one kind to have high-isolation, multiband application, and can two differences of reception/transmitting
The multiband dual polarized antenna of polarization direction.
Multiband dual polarized antenna of the invention, substrate, an earth element, a rectangular spurious element comprising an insulation
Part, one first radiating element and one second radiating element.
The substrate of the insulation include one first face and one in contrast to first face the second face.
The earth element is electrically conductive and is formed in first face, and the first ground strip including a growth rectangle, a growth
Rectangle and from a long side of first ground strip to the second ground strip for extending far from the first ground strip direction and one rectangular
And the third ground strip that two adjacent sides are connect with first ground strip and the second ground strip respectively.
The rectangular parasitic antenna is electrically conductive and is formed in first face, and two adjacent sides respectively with this first ground connection
Piece and second ground strip are separately.
First radiating element is electrically conductive and is formed in second face, and including one first feed arm and one from this first
Feed arm extends and the first primary radiation piece to the projection in first face between first ground strip and the parasitic antenna.
Second radiating element is electrically conductive and is formed in second face, and including one second feed arm and one from this second
Feed arm extends and to the second primary radiation piece of the projection between second ground strip and the parasitic antenna in first face and leads to
It crosses the parasitic antenna and promotes isolation between first radiating element and second radiating element.
Preferably, earth element, which further includes one, connects the long side of the third ground strip to another from first ground strip
The first notch and one second notch that long side is formed.
Preferably, the earth element further include one from the one of second ground strip connect the long side of the third ground strip to
The third notch and one the 4th notch that another long side is formed.
Preferably, the earth element further includes two being respectively formed at the third ground strip and first ground strip, second connecing
The slit on ground piece connection side.
Preferably, first notch and the third notch inverted L-shaped equal at diameter width, which has one should from connection
Extend to another longitudinal direction first of the first ground strip long side of third ground strip and one from this first along this first
For the long side of ground strip towards second extended far from the third ground strip, the 4th notch has one to connect the third ground strip certainly
The third portion that extends to another longitudinal direction of the second ground strip long side and the length from the third portion along second ground strip
While towards the 4th extended far from the third ground strip.
Preferably, the first feed arm of first radiating element has a microbrachia extended from the second face edge-perpendicular
Portion, a projection from the microbrachia portion towards extending far from the second face edge line and to first face are located at the of second notch
One wide arm and one is from the wide arm to the interconnecting piece for being parallel to the first ground strip longitudinal direction extension, first master
There is radiation fin first radiation extended from the long side of the first primary radiation piece close to the third ground strip towards another long side to lack
The second radiation notch that the long side of first primary radiation piece of mouth and a certainly separate third ground strip extends towards another long side.
Preferably, the second feed arm of second radiating element has a microbrachia extended from the second face edge-perpendicular
Portion, a projection from the microbrachia portion towards extending far from the second face edge line and to first face are located at the of the 4th notch
Three wide arms and one are from the wide arm to the interconnecting piece for being parallel to the second ground strip longitudinal direction extension, second master
Radiation fin has one to lack from the third radiation that the long side of the first primary radiation piece close to the third ground strip extends towards another long side
The 4th radiation notch that the long side of second primary radiation piece of mouth and a certainly separate third ground strip extends towards another long side.
Preferably, the first primary radiation piece this first radiation gap width be less than this second radiation notch, and this first
Notch is parallel to each other is not overlapped for radiation notch and second radiation；And the third radiation gap width of the second primary radiation piece is small
Notch is radiated in the 4th, and notch is parallel to each other is not overlapped for third radiation notch and the 4th radiation.
Preferably, the parasitic antenna includes one in rectangle and the positive throwing with the first primary radiation piece and the second primary radiation piece
The spaced parasitic patch of shade and the projecting arms that is extended by the parasitic patch towards the third ground strip.
Preferably, first width of second notch is greater than this second, and the third portion of the 4th notch
Width be greater than the 4th.
The beneficial effects of the present invention are make first spoke of multiband dual polarized antenna of the present invention by the parasitic antenna
The isolation penetrated between element and second radiating element increases, and without interfering with each other, and can reach good matching.
Detailed description of the invention
Other features of the invention and effect will be clearly presented in the embodiment referring to schema, in which:
Fig. 1 is an exploded view, illustrates an embodiment of multiband dual polarized antenna of the present invention；
Fig. 2 is a front view, illustrates the embodiment of multiband dual polarized antenna of the present invention；
Fig. 3 is a curve graph, illustrates that the embodiment simulation of multiband dual polarized antenna of the present invention and the reflection of actual measurement are damaged
It loses；
Fig. 4 is a current distributing figure, illustrates a first band current distribution of multiband dual polarized antenna of the present invention；
Fig. 5 is a current distributing figure, illustrates a second band current distribution of multiband dual polarized antenna of the present invention；
Fig. 6 is a current distributing figure, illustrates the third band current distribution of multiband dual polarized antenna of the present invention；
Fig. 7 is a curve graph, illustrates the embodiment reflection loss of multiband dual polarized antenna of the present invention；
Fig. 8 is a curve graph, illustrates that multiband dual polarized antenna of the present invention does not include the reflection loss of a parasitic antenna；
Fig. 9 is a curve graph, illustrate multiband dual polarized antenna of the present invention an earth element do not include two slits and
The reflection loss of one first notch and a third notch；And
Figure 10 is a schematic diagram, illustrates the antenna array structure of multiband dual polarized antenna of the present invention.
Specific embodiment
Before the present invention is described in detail, it shall be noted that in the following description content, similar element is with identical
Number is to indicate.
Refering to fig. 1 with Fig. 2, an embodiment of multiband dual polarized antenna of the present invention is suitable for one first signal of feed-in (figure
Do not show) and one second signal (not shown) with resonate out multiband and have there are two different directions linear polarization frequency band.It should
Multiband dual polarized antenna includes a substrate 1, an earth element 2, a parasitic antenna 3, one first radiating element 4 and one second
Radiating element 5.
The substrate 1 is that isolation material is made and form very thin positive rectangular sheet, and including one first face 11 and a phase
Instead in second face 12 in first face 11.
The earth element 2 is formed in first face 11 for conductive material production, and including one first ground strip 21, one second
Ground strip 22, a third ground strip 23, one first notch 24, one second notch 25, a third notch 26, one the 4th notch 27,
And two slits 28.
First ground strip 21 extends from an edge in first face 11 and forms a long rectangle；Second ground strip 22 is certainly
One long side of first ground strip 21 forms a long rectangle to extending far from 21 direction of the first ground strip, so that this first connects
Ground piece 21, the general at L-shaped aspect of the second ground strip 22；The third ground strip 23 at a rectangle and two adjacent sides respectively with this first
Ground strip 21 and the connection of the second ground strip 22.
First notch 24 is formed from the long side that first ground strip 21 connects the third ground strip 23 to another long side
The equal inverted L-shaped notch of diameter width, first notch 24 have one to connect being somebody's turn to do for the third ground strip 23 by first ground strip 21
First segment 241 that long side extends to another long side and one extended by the first segment 241 towards the direction far from second notch 25 and
It is parallel to the second segment 242 of 21 long side of the first ground strip.
Second notch 25 has one from 21 long side of the first ground strip of the third ground strip 23 is connected to another long side
First 251 of direction extension and one from first 251 long side along first ground strip 21 towards far from the third ground strip
23 second 252 extended, and first 251 width is greater than this second 252.
The third notch 26 connects the long side of the third ground strip 23 to another long side shape from the one of second ground strip 22
At the equal inverted L-shaped notch of diameter width, which has one to connect the third ground strip 23 by second ground strip 22
The third section 261 and one that the long side extends to another long side are extended parallel to by the third section 261 towards first ground strip 21
The 4th section 262 of second ground strip, 22 long side.
4th notch 27 has one from 22 long side of the second ground strip of the third ground strip 23 is connected to another long side
Third portion 271 that direction extends and one from the third portion 271 along second ground strip 22 long side towards far from the third ground strip
23 the 4th 272 extended, and the width in the third portion 271 of the 4th notch 27 is greater than the 4th 272.
Two slits 28 are respectively formed a long rectangle and are located at the third ground strip 23 and first ground strip 21, second
Ground strip 22 connects side, and connect respectively with first notch 24 and the third notch 26.
The parasitic antenna 3 it is electrically conductive and formed a rectangle and be set to first face 11, and two adjacent sides respectively with this
First ground strip 21 and second ground strip 22 separately, the parasitic antenna 3 include one in rectangle and with one first primary radiation piece
42 and one second primary radiation piece 52 the parasitic patch 31 that is separately arranged of orthographic projection and one be grounded by the parasitic patch 31 towards the third
The projecting arms 32 that piece 23 extends.
First radiating element 4 is formed in second face 12 for conductive material production, and including one first feed arm 41, and should
First primary radiation piece 42.
First feed arm 41 has one from the microbrachia portion 411, one that 12 edge-perpendicular of the second face extends from the microbrachia portion
411 projection towards extending far from 12 edge line of the second face and to first face 11 is located at first of second notch 25
251 wide arm 412 and one is from the wide arm 412 to the interconnecting piece for being parallel to 21 longitudinal direction of the first ground strip extension
413。
The first primary radiation piece 42, which extends from first feed arm 41 and is located at this to the projection in first face 11, first to be connect
Between ground piece 21 and the parasitic antenna 3, and the long side with one from the first primary radiation piece 42 close to the third ground strip 23 is towards another
The long side court of first primary radiation piece 42 of the certainly separate third ground strip 23 of the first radiation notch 421 and one that one long side extends
The second radiation notch 422 that another long side extends, the first radiation 421 width of notch are less than the second radiation notch 422, and that
This is not overlapped in parallel.
Second radiating element 5 is electrically conductive and is formed in second face 12, and including one second feed arm 51 and this second
Primary radiation piece 52.
Second feed arm 51 has one from the microbrachia portion 411, one that 12 edge-perpendicular of the second face extends from the microbrachia portion
411 towards far from 12 edge line of the second face extension and projecting positioned at the third portion of the 4th notch 27 to first face 11
271 wide arm 412 and one is from the wide arm 412 to the interconnecting piece for being parallel to 22 longitudinal direction of the second ground strip extension
413。
The second primary radiation piece 52, which extends from second feed arm 51 and is located at this to the projection in first face 11, second to be connect
Between ground piece 22 and the parasitic antenna 3, and the long side with one from the first primary radiation piece 42 close to the third ground strip 23 is towards another
The long side court of second primary radiation piece 52 of the certainly separate third ground strip 23 of third radiation notch 521 and one that one long side extends
The 4th radiation notch 522 that another long side extends, the third radiate 521 width of notch and are less than the 4th radiation notch 522, and that
This is not overlapped in parallel.
First signal and second signal are respectively by the microbrachia portion 411 of first feed arm 41 and second feed arm 51
411 feed-in of microbrachia portion, and respectively via the corresponding wide arm 412 and interconnecting piece 413 to 42 He of the first primary radiation piece
The second primary radiation piece 52, and three frequency bands that resonate out are respectively a first band 6, a second band 7 and a third frequency band 8
Multiband aerial, as shown in the circle circle on the reflection loss figure of Fig. 3, therefore multiband dual polarized antenna of the present invention can be applied to
700MHz (LTE), 860~960MHz (GSM), 1700~2170MHz (DCS, PCS, WCDMA) and 2400~2500MHz
Multiple frequency ranges such as (Bluetooth, Wireless LAN).
It is illustrated herein for the surface current path of three frequency bands, since the present embodiment includes first radiation element
Part 4 and second radiating element 5, therefore, for convenience of explanation only with the surface current path of the different frequency bands of the first radiating element 4
For carry out explained in greater detail, refering to Fig. 4, to resonate in the surface current path figure of the first band 6 (ginseng Fig. 3), due to this first
Frequency band 6 is low-frequency range, so the wavelength of walking is longer, it can thus be seen that current direction is from the microbrachia portion of first feed arm 41
The current direction of 411 to the first primary radiation piece 42 is all identical, as shown in the arrow direction in figure.
It is resonance in the surface current path figure of the second band 7, due to the second band 7 (ginseng Fig. 3) refering to Fig. 5
Resonance band is higher than the first band 6 (ginseng Fig. 3), so the current path of walking can be short compared with the first band 6, it can thus be seen that
Current direction is all identical up to the interconnecting piece to the current direction of the wide arm 412 from the microbrachia portion 411 of first feed arm 41
The 413 junction current directions for connecting the first primary radiation piece 42 just invert, as shown in the arrow direction in figure.
Refering to Fig. 6, to resonate in the surface current path figure of the third frequency band 8 (ginseng Fig. 3), due to the third frequency band 8
Resonance band is higher than the second band 7 (ginseng Fig. 3), so the current path of walking can be shorter therefore considerable than the second band 7
Examine out the junction that current direction flows to the wide arm 412 and the interconnecting piece 413 from the microbrachia portion 411 of first feed arm 41
It inverts, as shown in the arrow direction in figure.
It is the reflection loss figure of this implementation refering to Fig. 7 and Fig. 8, Fig. 7, and Fig. 8 is in multiband dual polarized antenna of the present invention
It does not include the reflection loss figure of the parasitic antenna 3, it was found that there is the S11 of the parasitic antenna 3 in high frequency (1700~2170MHz
And 2400~2500MHz) matching degree more this can have been observed than coming well without the S11 of the parasitic antenna 3 by S12 and posted
The trend of the S12 of raw element 3 also can be better than no parasitic antenna 3, it is clear that multiband dual polarized antenna of the present invention can lead to
Structure of the parasitic antenna 3 as isolation is crossed, to reduce the shadow of high frequency between first radiating element 4 and second radiating element 5
It rings, and then reaches good matching effect.
Refering to Fig. 9, the earth element 2 for being multiband dual polarized antenna of the present invention do not include two slit 28 with this first
The reflection loss figure of notch 24 and third notch 26, and with the S12 of Fig. 7 it was found that multiband dual polarized antenna of the present invention increases
It can be greatly improved at the frequency range of 860MHz~960MHz after two slit 28 and first notch 24 and third notch 26
Isolation, and isolation when 1700MHz~2170MHz and 2400MHz~2570MHz can also make moderate progress.Meanwhile more
Compared by the S11 of two figures, clear that has this two narrow when 1700MHz~2170MHz and 2400MHz~2570MHz
The S11 matching effect of the multiband dual polarized antenna of seam 28 and first notch 24 and third notch 26 is also than no two slit
28 and first notch 24 and third notch 26 multiband dual polarized antenna it is good, that is to say, that have two slit 28 and this
The multiband dual polarized antenna of one notch 24 and third notch 26 not only improves matching degree and also increases isolation.
In addition, first signal, which inspires one by first radiating element 4, is parallel to 41 side of extension of the first feed arm
To the first linear polarization, and second signal then passes through second radiating element 5 inspires one and be parallel to second feed arm
Second linear polarization of 51 extending directions, therefore, multiband dual polarized antenna of the present invention, which can not only receive, is parallel to first feedback
Enter the signal of arm 41, can also receive the signal for being orthogonal to first feed arm 41 (being parallel to second feed arm 51), and in reality
The application that border receives signal above can be unrestricted.
Refering to fig. 10, in addition, the embodiment of aforementioned present invention multiband dual polarized antenna can also be bipolar by multiple multibands
Change antenna 9, adopts adjacent two multiband dual polarized antennas 9 and form aerial array each other in the mode of mirror alignment and (only drawn in figure
Show that two multiband dual polarized antennas 9 explain), to increase the promotion of power, since its discrete structure, actuation are in institute above
It is described in detail, so it is no longer repeated herein.
In conclusion multiband dual polarized antenna of the present invention by the parasitic antenna 3 to increase its isolation so that this
One radiating element 4 and second radiating element 5 can not be influenced when high frequency by interfering with each other, and then reach good matching, and
More by the presence of two slit 28 and first notch 24 and third notch 26 to promote 860MHz~960MHz, 1700MHz
The isolation of the frequency band of~2170MHz and 2400MHz~2570MHz, so the purpose of the present invention can be reached really.
As described above, only the embodiment of the present invention is when cannot be limited the scope of implementation of the present invention with this, i.e., all
According to simple equivalent changes and modifications made by claims of the present invention and description, all still belong to the scope of the present invention.
Claims (10)
1. a kind of multiband dual polarized antenna, it is characterised in that: include:
The substrate of one insulation, including the first face of one side, and one side is in contrast to second face in first face；
One earth element for conductive material and is formed in first face, including a piece of the first ground strip in long rectangle, a piece of
In long rectangle and from a long side of first ground strip to the second ground strip and a piece of extended far from the first ground strip direction
In rectangle and third ground strip that two adjacent sides are connect with first ground strip and the second ground strip respectively；
One be in rectangle parasitic antenna, for conductive material and be formed in first face, and two adjacent sides respectively with this first
Ground strip and second ground strip are separately；
One the first radiating element for conductive material and is formed in second face, including first feed arm and a piece of from should
First feed arm extends and the first primary radiation piece to the projection in first face between first ground strip and the parasitic antenna；
And
One the second radiating element for conductive material and is formed in second face, including second feed arm and a piece of from should
Second feed arm extends and the second primary radiation piece to the projection in first face between second ground strip and the parasitic antenna,
And the isolation between first radiating element and second radiating element is promoted by the parasitic antenna.
2. multiband dual polarized antenna according to claim 1, it is characterised in that: earth element further include one from this
The first notch and second notch that the long side that one ground strip connects the third ground strip is formed to another long side.
3. multiband dual polarized antenna according to claim 2, it is characterised in that: the earth element further includes one and certainly should
The one of second ground strip connects the third notch and the 4th notch that the long side of the third ground strip is formed to another long side.
4. multiband dual polarized antenna according to claim 3, it is characterised in that: the earth element further includes two difference
Be formed in the slit that the third ground strip connects side with first ground strip, the second ground strip, and respectively with first notch and
Third notch connection.
5. multiband dual polarized antenna according to claim 4, it is characterised in that: first notch and third notch Cheng Jing
The equal inverted L-shaped of width, second notch have the first ground strip long side for connecting the third ground strip certainly to another length
First and one of edge direction extension extends from first long side along first ground strip towards far from the third ground strip
Second, the 4th notch have one from the second ground strip long side of the third ground strip is connected to another longitudinal direction
The third portion of extension and the 4 extended from the third portion along the long side of second ground strip towards the separate third ground strip
Portion.
6. multiband dual polarized antenna according to claim 5, it is characterised in that: the first feed-in of first radiating element
Arm has one to prolong from the microbrachia portion that the second face edge-perpendicular extends, one from the microbrachia portion towards far from the second face edge line
Stretch and the projection to first face be located at second notch first wide arm and one from the width arm to being parallel to this
The interconnecting piece that first ground strip longitudinal direction extends, the first primary radiation piece is with one certainly close to the first of the third ground strip
The the first radiation notch and a first main spoke from the separate third ground strip that the long side of primary radiation piece extends towards another long side
Penetrate the second radiation notch that the long side of piece extends towards another long side.
7. multiband dual polarized antenna according to claim 6, it is characterised in that: the second feed-in of second radiating element
Arm have one from the microbrachia portion that the second face edge-perpendicular extends, one from the microbrachia portion towards far from the second face edge line
Extend and the projection to first face be located at the 4th notch third portion wide arm and one from the width arm to being parallel to
The interconnecting piece that the second ground strip longitudinal direction extends, the second primary radiation piece have one from close to the of the third ground strip
The second of third radiation notch and a certainly separate third ground strip that the long side of one primary radiation piece extends towards another long side is main
The 4th radiation notch that the long side of radiation fin extends towards another long side.
8. multiband dual polarized antenna according to claim 7, it is characterised in that: first spoke of the first primary radiation piece
Gap width is penetrated less than the second radiation notch, and notch is parallel to each other is not overlapped for the first radiation notch and second radiation；
And the third radiation gap width of the second primary radiation piece is less than the 4th radiation notch, and the third radiates notch and the 4th
Notch is parallel to each other is not overlapped for radiation.
9. multiband dual polarized antenna according to claim 8, it is characterised in that: the parasitic antenna includes a piece of in rectangle
And the parasitic patch being separately arranged with the orthographic projection of the first primary radiation piece and the second primary radiation piece and one are by the parasitic patch
The projecting arms extended towards the third ground strip.
10. multiband dual polarized antenna according to claim 9, it is characterised in that: this first of second notch
Width is greater than this second, and the width in the third portion of the 4th notch is greater than the 4th.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510093649.7A CN105990693B (en) | 2015-03-03 | 2015-03-03 | Multiband dual polarized antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510093649.7A CN105990693B (en) | 2015-03-03 | 2015-03-03 | Multiband dual polarized antenna |
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| CN105990693A CN105990693A (en) | 2016-10-05 |
| CN105990693B true CN105990693B (en) | 2019-02-01 |
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| CN201510093649.7A Expired - Fee Related CN105990693B (en) | 2015-03-03 | 2015-03-03 | Multiband dual polarized antenna |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109980338B (en) * | 2017-12-27 | 2020-11-17 | 惠州硕贝德无线科技股份有限公司 | Be applied to miniaturized MIMO antenna of intelligent terminal equipment radiation plane sharing |
| EP3836302B1 (en) | 2018-09-30 | 2023-06-14 | Huawei Technologies Co., Ltd. | Antenna and terminal |
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| CN102983397A (en) * | 2012-11-30 | 2013-03-20 | 华南理工大学 | Small high-isolation double-notch UWB MIMO antenna |
| TW201349784A (en) * | 2012-05-30 | 2013-12-01 | Univ Nat Sun Yat Sen | A MIMO antenna, antenna unit thereof and a system in package having said antenna |
| CN104009285A (en) * | 2014-05-29 | 2014-08-27 | 华南理工大学 | Miniaturized multi-band WLAN/WiMAX antenna |
| CN104112911A (en) * | 2013-04-18 | 2014-10-22 | 财团法人工业技术研究院 | Multi-antenna system |
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| KR101644908B1 (en) * | 2010-10-27 | 2016-08-03 | 삼성전자 주식회사 | Mimo antenna apparatus |
| TWI495197B (en) * | 2011-10-11 | 2015-08-01 | Univ Southern Taiwan | Monopole slot antenna of multiple-input and multiple-output with good isolation degree |
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| TW201349784A (en) * | 2012-05-30 | 2013-12-01 | Univ Nat Sun Yat Sen | A MIMO antenna, antenna unit thereof and a system in package having said antenna |
| CN102983397A (en) * | 2012-11-30 | 2013-03-20 | 华南理工大学 | Small high-isolation double-notch UWB MIMO antenna |
| CN104112911A (en) * | 2013-04-18 | 2014-10-22 | 财团法人工业技术研究院 | Multi-antenna system |
| CN104009285A (en) * | 2014-05-29 | 2014-08-27 | 华南理工大学 | Miniaturized multi-band WLAN/WiMAX antenna |
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