CN109390662A - The antenna and its array antenna of both-end recess - Google Patents
The antenna and its array antenna of both-end recess Download PDFInfo
- Publication number
- CN109390662A CN109390662A CN201710659410.0A CN201710659410A CN109390662A CN 109390662 A CN109390662 A CN 109390662A CN 201710659410 A CN201710659410 A CN 201710659410A CN 109390662 A CN109390662 A CN 109390662A
- Authority
- CN
- China
- Prior art keywords
- antenna
- feed
- radiation component
- length
- sides
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
- H01Q1/3233—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems
-
- 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
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Waveguide Aerials (AREA)
Abstract
The present invention provides a kind of antenna of both-end recess, comprising: a radiation component, its is rectangular, there are two corresponding first side and two second sides between two first sides for radiation component tool, each recessed groove in the middle section of two first sides, two grooves respectively have the feed-in for being parallel to two first sides while and when being connected to each feed-in two of both ends from end edge；And two microstrip lines, each one end are electrically connected at the feed-in side of two grooves.Whereby, the impedance bandwidth of antenna is effectively promoted.
Description
Technical field
The present invention relates to a kind of antenna and its array antennas, refer in particular to a kind of both-end recess for effectively increasing impedance bandwidth
Antenna and its array antenna.
Background technique
In general, most of Vehicle radar system uses microstrip-type array antenna, and Vehicle radar system is by nothing
Line signal transceiver is set to inside car insurance bar or fan grid cover, using transmitting and receives millimeter wave (millimeter-
Wave) wireless signal, the application such as Lai Jinhang ranging, information exchange.Since shock-absorbing Poly Foam would generally be arranged in car insurance bar
Or glass fibre etc., available space is extremely limited, and therefore, radar signal is easy to be attenuated, thus increases array antenna and set
Difficulty on meter.
Also, the operation frequency range of general Vehicle radar system will obtain substantially near 24GHz and 77GHz in high-frequency
The improvement of antenna efficiency, and promote antenna gain and be not easy to, and therefore necessary adapted space limitation increases antenna
Design on difficulty.
In addition, 2014/0145909 A1 of U.S. Patent number US, it discloses a kind of antenna and array antennas comprising one
Radiation component；One earthing member forms a region, and radiation component is set in region, and in one the 4th side relative to radiation component
It is formed with an opening；One extending column, one end are electrically connected at signal feed side, and are electrically connected at the 4th side of radiation component,
The opening of the other end towards earthing member extends；One first connector, one end are electrically connected at the first of radiation component while with the 4th
Between, the other end is electrically connected at earthing member；And one second connector, one end are electrically connected at a third side of radiation component
Between the 4th side, the other end is electrically connected at earthing member.
4th side of aforementioned radiation part has concave inward structure and is electrically connected with extending column, but by the reflection of aforementioned antenna
Coefficient frequencies response diagram shows and bad, and can not reach, it can be seen that effective bandwidth of the aforementioned antenna near 24GHz frequency
To preferable impedance matching, to avoid signal reflex.Moreover, the 4th side of aforementioned radiation part has concave inward structure, in basic day
In lineation opinion, dependency structure design has been mentioned, this design can increase bandwidth, but not be suitable for array antenna.
Therefore, how to improve drawbacks described above, increase antenna efficiency and impedance bandwidth, need related dealer and solve.
Summary of the invention
To solve the above subject, in one embodiment of the present invention, the antenna and its array day of a kind of both-end recess are provided
Line can effectively promote the impedance bandwidth of antenna, and be suitable for array antenna and design, to reach the antenna radiation patterns of optimization.
One embodiment of the present invention provides a kind of antenna of both-end recess comprising: a radiation component, it is rectangular,
There are two corresponding first side and two second sides between two first sides, two first sides for radiation component tool
Each recessed groove in middle section, two grooves respectively have the feed-in side for being parallel to two first sides and are connected to each feedback
Enter two of side both ends from end edge；And two microstrip lines, each one end are electrically connected at the feed-in side of two grooves.
One embodiment of the present invention, the length of each first side are 1.5 millimeters to 3.5 millimeters.
One embodiment of the present invention, each first side length between 2.5 times to 5.5 times of each feed-in edge lengths it
Between.
One embodiment of the present invention, 2.5 times to 3.5 times between each micro belt line width of each feed-in edge lengths.
One embodiment of the present invention, two are greater than each feed-in edge lengths from end edge length.
One embodiment of the present invention, each second side length are greater than each 3.5 times to 5 times from end edge length.
In another embodiment of the invention, a kind of array antenna of both-end recess is provided comprising: multiple radiation components,
Rectangular, each radiation component has there are two corresponding first side and two second sides between two first sides,
Each recessed groove in the middle section of two first sides, two grooves respectively have the feed-in side for being parallel to two first sides and
Two of each feed-in side both ends are connected to from end edge；And multiple microstrip lines, it is electrically connected at each of each radiation component
Feed-in side concatenates each radiation component mutually to form a series connection array.
One embodiment of the present invention, the first side length close to the series connection array both ends two radiation components therein are small
In the first side length for the wherein radiation component being located among the series connection array.
One embodiment of the present invention, two first side length of each radiation component by be located at series connection array centre its
In a radiation component toward two sides endpoint each radiation component it is tapered.
One embodiment of the present invention, the length of each first side are 1.5 millimeters to 3.5 millimeters.
One embodiment of the present invention, 2.5 times to 3.5 times between each micro belt line width of each feed-in edge lengths.
One embodiment of the present invention, each second side length between each 3.5 times from end edge length to 5 times it
Between.
By above-mentioned, the effect of present invention can reach, by each recessed groove in two first sides of radiation component,
So that microstrip line is suitably protruded into a segment length in groove, and is electrically connected with appropriate location with feed-in side, and then reach best
Impedance matching, to avoid signal reflection problem generation.
Also, two recessed grooves in first side of each radiation component, can adjust the impedance of each antenna feed-in, effectively
Increase the effective bandwidth of antenna.
And when radiation component is connected into series connection array, it is more able to ascend the band width for reaching external, is obtained more preferably
Impedance matching, and then reach the antenna radiation patterns of optimization.
Detailed description of the invention
Fig. 1 is antenna schematic diagram of the invention.
Fig. 2 is array antenna schematic diagram of the invention.
Fig. 3 is that array antenna of the invention is set to substrate schematic diagram.
Fig. 4 is the enlarged fragmentary cross section of Fig. 3.
Fig. 5 is that the reflection coefficient frequency of antenna of the invention responds schematic diagram.
Fig. 6 is the frequency response comparison schematic diagram of array antenna and general array antenna reflection coefficient of the invention.
Fig. 7 is the current vector density schematic diagram of radiation component of the invention.
Description of symbols
Circuit board 1
Substrate layer 2
Ground plane 3
First face 4
Second face 5
Radiation component 10
Radiation component 10a
First side 11
Second side 12
Groove 13
First groove 13a
Second groove 13b
Feed-in side 131
From end edge 132
Microstrip line 20
Series connection array 30
Impedance bandwidth F1
Impedance bandwidth F2.
Specific embodiment
For ease of illustration of present invention central idea represented in one column of foregoing invention content, now with specific embodiment table
It reaches.Various difference objects are to describe in ratio, size, deflection or the displacement for being suitable for explanation, rather than press real in embodiment
The ratio of border component is drawn.
It please refers to shown in Fig. 1, Fig. 5, Fig. 6 and Fig. 7, one embodiment of the present invention, a kind of antenna of both-end recess is provided,
In the embodiment of the present invention, the antenna of both-end recess is microstrip-type antennas, and the antenna of both-end recess is set to a circuit board 1, wherein
Circuit board 1 has a substrate layer 2 and a ground plane 3 made of mutual storehouse, and substrate layer 2 has one first face 4 being reversed
And one second face 5, the antenna of both-end recess are set to the first face 4, ground plane 3 is connected to the second face 5.The antenna packet of both-end recess
It includes:
One radiation component 10, rectangular, the tool of radiation component 10 is there are two corresponding first side 11 and is set to two the first sides
Two second sides 12 between side 11, each recessed groove 13 in the middle section of two first sides 11, two grooves 13 respectively have
Be parallel to the feed-in of two first sides 11 while 131 and when being connected to each feed-in two of 131 both ends from end edge 132, in
In the embodiment of the present invention, two are parallel to two second sides 12 from end edge 132, and two mutual from end edge 132 and feed-in side 131
Vertically.Whereby, the impedance bandwidth of the antenna feed-in of both-end recess can be adjusted by two grooves 13.
Also, two 12 length of second side are between 1 times to 2 times of two 11 length of first side, in other words, two
The length of dual side-edge 12 is equal to the length of two first sides 11 or two 12 length maximums of second side are equal to two first
2 times of 11 length of side；Each 11 length of first side between 2.5 times to 5.5 times of each 131 length of feed-in side,
In, the length of each first side 11 is 1.5 millimeters to 3.5 millimeters, and each 12 length of second side is between each from end edge 132
3.5 times to 5 times of length, two are greater than each 131 length of feed-in side, in the embodiment of the present invention, first from 132 length of end edge
The length of side 11 can be one of 1.8 millimeters, 2 millimeters, 2.5 millimeters or 3 millimeters, and the length of each second side 12 is
3.355 millimeters, the side length on each feed-in side 131 is 0.6 millimeter.
In addition, two grooves 13 are respectively one first groove 13a and one second groove 13b in the embodiment of the present invention, the
Two of one groove 13a are different from 132 length of end edge from two of the second groove 13b from 132 length of end edge, the first groove 13a
Two two from 132 length of end edge less than the second groove 13b from 132 length of end edge, wherein two of the first groove 13a
It is 0.7 millimeter from 132 length of end edge, two of the second groove 13b are 0.85 millimeter from 132 length of end edge.
Two microstrip lines 20, each one end is electrically connected at the feed-in side 131 of two grooves 13, in the embodiment of the present invention
In, two microstrip lines 20 are electrically connected at feed-in and 131 are mutually perpendicular to when 131 one end is with feed-in.Wherein, each feed-in side
131 length are between 2.5 times to 3.5 times of each 20 width of microstrip line, and in the embodiment of the present invention, each 20 width of microstrip line is
0.2 millimeter.Whereby, each microstrip line 20 can suitably protrude into a segment length in each groove 13, and with appropriate location and often
One feed-in side 131 electrical connection, to reach optimal impedance matching.
It please refers to shown in Fig. 7, by the size of radiation component 10 and the size design of dual-cavity 13, two of radiation component 10
The current strength of dual side-edge 12 and two grooves 13 is high, keeps the radiation efficiency of radiation component 10 high；Also, two second sides 12
Therefore current direction can reach optimal impedance matching in contrast to the current direction of two microstrip lines 20.
Fig. 2 to Fig. 6 is please referred to, the antenna that both-end is recessed is derived as array antenna, other than it can reduce required area,
More can be by adjusting reaching various antenna effects, and another embodiment of the invention provides a kind of array day of both-end recess
Line is set on the first face 4 of the substrate layer 2 of circuit board 1, as shown in Figures 3 and 4.
The array antenna of both-end recess includes: multiple radiation components 10, and two first sides 11 of each radiation component 10 are each recessed
If a groove 13；And multiple microstrip lines 20, it is respectively electrically connected at each feed-in side 131 of each radiation component 10, is made each
The mutually concatenation of radiation component 10 is to form a series connection array 30.Wherein, as shown in Fig. 2, in the embodiment of the present invention, any two are adjacent
The the first groove 13a and the second groove 13b of radiation component 10 are face-to-face toward each other.
Also, 11 length of first side of two radiation components 10 close to series connection 30 both ends of array, which is less than, is located at series connection array
11 length of first side of a radiation component 10 among 30, and two 11 length of first side of each radiation component 10 are by being located at
Each radiation component 10 of a radiation component 10 toward two sides endpoint among array of connecting 30 is tapered.Wherein, each first side 11
Length be 1.5 millimeters to 3.5 millimeters, in the embodiment of the present invention, the length of two first sides 11 of each radiation component 10 is
1.8 millimeters, 2 millimeters, 2.5 millimeters or 3 millimeters of combination.
It please refers to shown in Fig. 2,6 radiation with dual-cavity 13 is equipped in the embodiment of the present invention, in array 30 of connecting
The radiation component 10a of part 10 and 1 single groove 13, wherein the 1st radiation component 10a counted from top to bottom from attached drawing direction is single
One groove 13,11 length of first side of radiation component 10a are 1.8 millimeters；By attached drawing direction from top to bottom number the 4th for positioned at
Radiation component 10 among array of connecting 30, and two 11 length of first side of intermediate radiation component 10 are 3 millimeters；From attached drawing side
11 length of first side to the 2nd and the 6th radiation component 10 of number from top to bottom is 2 millimeters；From top to bottom from attached drawing direction
11 length of first side of several the 3rd and the 5th radiation component 10 is 2.5 millimeters；The 7th counted from top to bottom from attached drawing direction
11 length of first side of radiation component 10 is 1.8 millimeters.
Whereby, Fig. 1 and Fig. 5 is please referred to, by the size of radiation component 10 and the size design of dual-cavity 13, in reflection coefficient
When curve drops to -10dB (Return Loss 10dB), two frequencies are nearby presented by 24GHz frequency in respective operations frequency range
The impedance bandwidth F1 wider of difference, as shown in figure 5, in the embodiment of the present invention, impedance bandwidth F1 be 23.9592GHz extremely
24.4017GHz。
In addition, as shown in fig. 6, the frequency of the reflection coefficient for the array antenna and general array antenna of both-end of the present invention recess
Rate responds comparison schematic diagram, can understand and compare, the impedance bandwidth F1 of the array antenna of both-end recess of the invention, compared to
The impedance bandwidth F2 of general array antenna is wider, and therefore, the array antenna of both-end recess of the invention can effectively promote impedance
Bandwidth, to reach the antenna radiation patterns of optimization.
Therefore, by the dual-cavity 13 of radiation component 10, microstrip line 20 is enable suitably to protrude into a segment length in groove 13
And be electrically connected with feed-in side 131, reach optimal impedance matching, to avoid signal reflection problem generation.And radiation component 10
Dual-cavity 13 designs, and can adjust the impedance of each 10 feed-in of radiation component, effectively increase the effective bandwidth of radiation component 10.
In addition, the antenna that both-end of the invention is recessed is derived as array antenna, required area can be effectively reduced, and
By adjusting reaching various antenna effects.And when by the way that radiation component 10 being connected into series connection array 30, it is able to ascend and reaches pair
Outer band width obtains optimal impedance matching.
Embodiment provided above is only to illustrate the present invention, the protection scope being not intended to limit the invention.Such as
The various modifications or variation being engaged in without prejudice to spirit of that invention, all belong to the range this invention is intended to protection.
Claims (12)
1. a kind of antenna of both-end recess characterized by comprising
One radiation component, rectangular, radiation component tool is there are two corresponding first side and is set to two first sides
Between two second sides, each recessed groove in the middle section of two first sides, two grooves respectively have be parallel to this two
One feed-in of a first side while and when being connected to each feed-in two of both ends from end edge；And
Two microstrip lines, each one end are electrically connected at the feed-in side of two grooves.
2. the antenna of both-end recess as described in claim 1, which is characterized in that the length of each first side is 1.5 millimeters
To 3.5 millimeters.
3. the antenna of both-end recess as claimed in claim 1 or 2, which is characterized in that each first side length is between each
Between 2.5 times to 5.5 times of feed-in edge lengths.
4. the antenna of both-end recess as described in claim 1, which is characterized in that each feed-in edge lengths are between each microstrip line
2.5 times to 3.5 times of width.
5. the antenna of both-end recess as described in claim 1, which is characterized in that this two are greater than each feed-in from end edge length
Edge lengths.
6. the antenna of both-end recess as claimed in claim 1 or 5, which is characterized in that each second side length is greater than each
From 3.5 times to 5 times of end edge length.
7. a kind of array antenna of both-end recess characterized by comprising
Multiple radiation components, rectangular, each radiation component tool is there are two corresponding first side and is set to two first sides
Two second sides between side, each recessed groove in the middle section of two first sides, two grooves, which respectively have, is parallel to this
One feed-in of two first sides while and when being connected to each feed-in two of both ends from end edge；And
Multiple microstrip lines are electrically connected at each feed-in side of each radiation component, concatenate each radiation component mutually to form one
Series connection array.
8. the array antenna of both-end recess as claimed in claim 7, which is characterized in that therein close to the series connection array both ends
The first side length of two radiation components is less than the first side length for the wherein radiation component being located among the series connection array.
9. the array antenna of both-end recess as claimed in claim 7, which is characterized in that two first sides of each radiation component are long
The wherein radiation component for spending the centre from being located at the series connection array is tapered toward each radiation component of two sides endpoint.
10. the array antenna that the both-end as described in any one of claim 7 to 9 is recessed, which is characterized in that each first side
Length be 1.5 millimeters to 3.5 millimeters.
11. the array antenna of both-end recess as claimed in claim 7, which is characterized in that each feed-in edge lengths are between each
2.5 times to 3.5 times of micro belt line width.
12. the array antenna of both-end recess as claimed in claim 7, which is characterized in that each second side length is between every
One from 3.5 times to 5 times of end edge length between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710659410.0A CN109390662A (en) | 2017-08-04 | 2017-08-04 | The antenna and its array antenna of both-end recess |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710659410.0A CN109390662A (en) | 2017-08-04 | 2017-08-04 | The antenna and its array antenna of both-end recess |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109390662A true CN109390662A (en) | 2019-02-26 |
Family
ID=65413163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710659410.0A Pending CN109390662A (en) | 2017-08-04 | 2017-08-04 | The antenna and its array antenna of both-end recess |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109390662A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110048218A (en) * | 2019-04-28 | 2019-07-23 | 中国电子科技集团公司第二十六研究所 | A kind of microstrip antenna with harmonic restraining function |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4180817A (en) * | 1976-05-04 | 1979-12-25 | Ball Corporation | Serially connected microstrip antenna array |
| JPH11251833A (en) * | 1998-02-27 | 1999-09-17 | Toyota Central Res & Dev Lab Inc | Microstrip antenna element and mcirostrip array antenna |
| US6211825B1 (en) * | 1999-09-03 | 2001-04-03 | Industrial Technology Research Institute | Dual-notch loaded microstrip antenna |
| CN1665067A (en) * | 2004-01-05 | 2005-09-07 | 三星电子株式会社 | Miniaturized ultra-wideband microstrip antenna |
| US7071881B1 (en) * | 2004-10-04 | 2006-07-04 | Lockheed Martin Corporation | Circular antenna polarization via stadium configured active electronically steerable array |
| CN104335421A (en) * | 2012-05-29 | 2015-02-04 | 三星电子株式会社 | Circularly polarized patch antennas, antenna arrays, and devices including such antennas and arrays |
| CN106450739A (en) * | 2016-11-30 | 2017-02-22 | 华域汽车***股份有限公司 | Planar microstrip patch array antenna |
| CN106505312A (en) * | 2016-12-09 | 2017-03-15 | 安徽四创电子股份有限公司 | A kind of millimeter wave microstrip antenna array |
| CN106571536A (en) * | 2015-10-12 | 2017-04-19 | 德尔福技术有限公司 | MIMO antenna with elevation detection |
| CN107453043A (en) * | 2017-06-23 | 2017-12-08 | 惠州市德赛西威汽车电子股份有限公司 | A kind of automobile side back radars aerial array and antenna plane |
-
2017
- 2017-08-04 CN CN201710659410.0A patent/CN109390662A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4180817A (en) * | 1976-05-04 | 1979-12-25 | Ball Corporation | Serially connected microstrip antenna array |
| JPH11251833A (en) * | 1998-02-27 | 1999-09-17 | Toyota Central Res & Dev Lab Inc | Microstrip antenna element and mcirostrip array antenna |
| US6211825B1 (en) * | 1999-09-03 | 2001-04-03 | Industrial Technology Research Institute | Dual-notch loaded microstrip antenna |
| CN1665067A (en) * | 2004-01-05 | 2005-09-07 | 三星电子株式会社 | Miniaturized ultra-wideband microstrip antenna |
| US7071881B1 (en) * | 2004-10-04 | 2006-07-04 | Lockheed Martin Corporation | Circular antenna polarization via stadium configured active electronically steerable array |
| CN104335421A (en) * | 2012-05-29 | 2015-02-04 | 三星电子株式会社 | Circularly polarized patch antennas, antenna arrays, and devices including such antennas and arrays |
| CN106571536A (en) * | 2015-10-12 | 2017-04-19 | 德尔福技术有限公司 | MIMO antenna with elevation detection |
| CN106450739A (en) * | 2016-11-30 | 2017-02-22 | 华域汽车***股份有限公司 | Planar microstrip patch array antenna |
| CN106505312A (en) * | 2016-12-09 | 2017-03-15 | 安徽四创电子股份有限公司 | A kind of millimeter wave microstrip antenna array |
| CN107453043A (en) * | 2017-06-23 | 2017-12-08 | 惠州市德赛西威汽车电子股份有限公司 | A kind of automobile side back radars aerial array and antenna plane |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110048218A (en) * | 2019-04-28 | 2019-07-23 | 中国电子科技集团公司第二十六研究所 | A kind of microstrip antenna with harmonic restraining function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10833401B2 (en) | Phased array antennas having decoupling units | |
| US9590304B2 (en) | Broadband antenna | |
| JP6297337B2 (en) | Antenna assembly and communication device including the antenna assembly | |
| US9236664B2 (en) | Antenna | |
| CN105493348A (en) | Multiband common-caliber antenna | |
| US8390523B2 (en) | Planar inverted-F antenna and wireless network device having the same | |
| CN106549218B (en) | Antenna module | |
| US20120287009A1 (en) | Solid antenna | |
| US9960485B2 (en) | Antenna device using EBG structure, wireless communication device, and radar device | |
| US10530059B2 (en) | Folding dipole antenna, wireless communication module and method of constructing the same | |
| US10079436B2 (en) | Planar antenna | |
| US9306277B2 (en) | Multi-antenna device and communication device | |
| US9257748B1 (en) | Broadband, low-profile antenna structure | |
| CN109273847B (en) | Antenna system and communicating terminal | |
| US10483656B2 (en) | Dual-notch antenna and antenna array thereof | |
| TWI654797B (en) | Dual notch antenna and antenna array thereof | |
| CN104966903B (en) | A kind of suspension micro-strip antenna array and its antenna for 60GHz millimetre-wave attenuators | |
| CN109390662A (en) | The antenna and its array antenna of both-end recess | |
| CN103378414A (en) | Multi-aerial system | |
| CN108808254B (en) | Back cavity type slot antenna of substrate integrated waveguide based on loading short-circuit nails | |
| US9325392B2 (en) | Horizontally polarized omnidirectional antenna and antenna device incorporating the same | |
| US11283147B2 (en) | Directional coupler | |
| JP7407487B1 (en) | Transmission equipment and antenna | |
| CN214672979U (en) | WIFI antenna structure | |
| CN105914460A (en) | Dual-polarized broadband radiating element and miniature antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190226 |
|
| WD01 | Invention patent application deemed withdrawn after publication |