CN110518336A - A kind of omnidirectional radiation car antenna - Google Patents
A kind of omnidirectional radiation car antenna Download PDFInfo
- Publication number
- CN110518336A CN110518336A CN201910796191.XA CN201910796191A CN110518336A CN 110518336 A CN110518336 A CN 110518336A CN 201910796191 A CN201910796191 A CN 201910796191A CN 110518336 A CN110518336 A CN 110518336A
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- China
- Prior art keywords
- squaerial
- unit
- millimeters
- length
- ground plane
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Classifications
-
- 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
-
- 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
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/104—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces using a substantially flat reflector for deflecting the radiated beam, e.g. periscopic antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—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
Landscapes
- Waveguide Aerials (AREA)
Abstract
The invention discloses a kind of omnidirectional radiation car antennas, belong to microwave technical field, including metal ground plane and radiation patch unit, using metal ground plane as substrate, radiation patch unit is parallel to metal ground plane, radiation patch unit one end is connected by short-circuiting jumper with metal ground plane, and the other end passes sequentially through that medium sheet metal is vertical with width band microstrip line to be connected with metal ground plane；In radiation patch unit, fluting, respectively U-shaped gap, short L-type gap and long L-type gap are set.A kind of omnidirectional radiation car antenna of the invention, designed antenna have the series of advantages such as light-weight, section is low, low cost, mechanical strength are good, bandwidth, high-efficient, small by surrounding environment influence, small to human body radiation injury, covering frequence is high.Compact of the present invention, structure novel simultaneously, cost is relatively low and processing is convenient.
Description
Technical field
The invention belongs to microwave technical fields, and in particular to a kind of omnidirectional radiation car antenna.
Background technique
The daily vehicles of the automobile as people, it is mounted with that more comprehensively recreational facilities are to alleviate in driving conditions
Fatigue.And automobile mounted antenna is then one of the element of current automobile indispensability.Consider that people are for Automobile Design by now
It is required that the design of vehicle control platform antenna also must compact volume and convenience, beauty and high-efficient.
Among actual demand, in order to adapt to the multiband work of wireless communication, it is necessary to which antenna realizes multiband
Work, this just needs the support of other technologies.We can adopt open by using double-fed point or on aerial radiation sheet metal
Slot forms the technology in gap to realize.And when using double-fed point, tuned frequency and tuning range suffer from certain limitation.
Summary of the invention
Goal of the invention: the purpose of the present invention is to provide a kind of omnidirectional radiation car antenna, structure is simple and novel, is adapted to
Actual demand and working band is wide, section size is low and realizes convenient for production.
Technical solution: to achieve the above object, the invention provides the following technical scheme:
A kind of omnidirectional radiation car antenna, including metal ground plane and radiation patch unit, with the metallic ground
Plane is substrate, and the radiation patch unit is parallel to metal ground plane, and described radiation patch unit one end passes through short
Road sheet metal is connected with metal ground plane, the other end pass sequentially through medium sheet metal with wide band microstrip line is vertical connects with metal
Ground level is connected；In the radiation patch unit, fluting, respectively U-shaped gap, short L-type gap and long L-type gap are set.
Further, the short-circuiting jumper is connection metal ground plane and radiation patch unit metal medium, institute
The wide band microstrip line stated is at feed.
Further, the wide band microstrip line is connected with same length medium sheet metal.
Further, the length of the metal ground plane is 80-120 millimeters, and width is 20-60 millimeters, patch spoke
The length for penetrating unit is 35-45 millimeters, and width is 18-28 millimeters；The length of the short-circuiting jumper is 2-4 millimeters, height
It is 14-16 millimeters, it is highly 13-14 millimeters that the medium metal leaf length, which is 22-24 millimeters,；The wide band micro-strip
Line length is 22-24 millimeters, is highly 1-2 millimeters.
Further, the length of the metal ground plane is 100 millimeters, and width is 40 millimeters, the patch spoke
The length for penetrating unit is 40 millimeters, and width is 23 millimeters, and it is highly 15 millimeters that the length of the short-circuiting jumper, which is 3 millimeters,
The length of the wide band microstrip line is 23 millimeters, is highly 1.5 millimeters；The medium metal leaf length is 23 millimeters,
Height is 13.5 millimeters.
Further, the U-shaped gap includes four sections of squaerial units being sequentially connected, respectively the first rectangle day
Line unit, the second squaerial unit, third squaerial unit and the 4th squaerial unit；The short L-type gap packet
The 5th squaerial unit and the 6th squaerial unit connected vertically are included, the long L-type gap includes connected vertically
7th squaerial unit and the 8th squaerial unit.
Further, the first squaerial unit, third squaerial unit, the 6th squaerial unit and
Eight squaerial units are parallel to each other, the second squaerial unit, the 4th squaerial unit, the 5th squaerial list
Member and the 7th squaerial unit are parallel to each other；After cooperation, the second squaerial unit and the 5th squaerial unit
Close, the 4th squaerial unit and the 7th squaerial unit are close.
Further, the first squaerial element length is 4 millimeters, and the second squaerial element length is 15 millis
Rice, third squaerial element length are 35 millimeters, and the 4th squaerial element length is 17 millimeters, first seam in U-shaped gap
A length of 1 millimeter；5th squaerial element length is 14 millimeters, and the 6th squaerial element length is 5 millimeters, short L-type gap
Second seam it is a length of 1 millimeter；7th squaerial element length is 14 millimeters, and the 8th squaerial element length is 9 millimeters, long
A length of 1 millimeter of the third seam in L-type gap.
Inventive principle: for technical aspect, this antenna is evolved by unipole antenna.In the actual design of this antenna
In, mostly use the mode of fluting to realize multiple-frequency operation.It is wherein recessed above radiation patch unit, by three sections of different gaps
It constitutes.Ground plane can serve as reflective metal to a certain extent, be connected by short-circuiting jumper with radiation patch.Feedback
The mode of electricity is wide band feed microstrip line.It can be realized by way of changing radiation patch length and change resonance frequency
Purpose realizes the purpose for increasing the beamwidth of antenna, the vehicle control platform ring made full use of by changing the height of radiation sheet metal
Border condition.The fluting of radiation patch designs so that antenna can be realized multiple-frequency operation.For and combine vehicle control platform height reality
Border situation, flexible design simultaneously use this feature.This antenna can be such that bandwidth is further expanded, and emission effciency also can
It is improved, and realizes multiple-frequency operation.
The utility model has the advantages that compared with prior art, a kind of omnidirectional radiation car antenna of the invention, designed antenna has weight
Amount is light, section is low, low cost, mechanical strength are good, bandwidth, it is high-efficient, small by surrounding environment influence, human body radiation is injured
The small, series of advantages such as covering frequence is high.Compact of the present invention, structure novel simultaneously, cost is relatively low and processing is convenient.
Detailed description of the invention
Fig. 1 is the schematic perspective view of car antenna；
Fig. 2 is the overlooking structure diagram of car antenna；
Fig. 3 is the antenna return loss characteristic curve that car antenna utilizes HFSS software to calculate；
Fig. 4 is antenna pattern of the car antenna in 1.7GHz；
Fig. 5 is antenna pattern of the car antenna in 2.0GHz；
Fig. 6 is antenna pattern of the car antenna in 3.4GHz；
Appended drawing reference: 1- metal ground plane, 2- radiation patch unit, 3- short-circuiting jumper, 4- wide band microstrip line, 5-
Medium sheet metal, 6-U type long gap, the short L-type gap 7-, 8- long L-type gap, the first squaerial of L1- unit, the second square of W1-
Shape antenna element, L2- third squaerial unit, the 4th squaerial unit of W2-, the 5th squaerial unit of W3-, L3-
Six squaerial units, the 7th squaerial unit of W4-, the 8th squaerial unit of L4-, the first long T1 of seam, the long T2 of the second seam,
Third stitches long T3.
Specific embodiment
The content of patent for a better understanding of the present invention further illustrates this in the following with reference to the drawings and specific embodiments
The technical solution of invention.
As shown in Figs. 1-2, a kind of omnidirectional radiation car antenna, it is vehicle control platform that antenna, which makes suitable environment, including metal connects
Ground level 1, radiation patch unit 2, short-circuiting jumper 3 and wide band microstrip line 4, are substrate, distance with metal ground plane 1
One piece of radiation patch unit 2 is placed at H height, radiation patch unit 2 is parallel to metal ground plane 1.Between the two by short
Road sheet metal 3 supports, and short-circuiting jumper 3 is connection ground plane 1 and 2 metal medium of radiation patch unit, wide band microstrip line 4
At feed, antenna is fed by wide band microstrip line 4, and wide 4 lower end of band feeding microstrip line connects ground plane 1, on
One medium sheet metal 5 of end connection, 5 upper end of medium sheet metal is connected with radiation patch unit 2.Radiation patch unit 2 has fluting
Processing, there is a U-shaped gap 6, one short L-type gap 7 and one long L-type gap 8 thereon.2 one end of radiation patch unit passes through
Short-circuiting jumper 3 is vertically connected with metal ground plane 1.2 other end of radiation patch unit passes sequentially through medium sheet metal 5 and width
Band microstrip line 4 is vertically connected with metal ground plane 1.
Wide band microstrip line 4 is connected with same length medium sheet metal 5, whole to be used as supported grounding plane and radiation patch
The attachment of unit, i.e. 5 upper end of medium sheet metal connect radiation patch unit 2, and lower end connects wide band microstrip line 4.
Antenna is fed by wide band microstrip line 4, adjusts the humorous of antenna by adjusting the side length of top layer radiation patch unit 2
Vibration frequency.
As shown in Figure 1, the length of metal ground plane 1 is in 80-120 millimeters of ranges, width is in 20-60 millimeters of ranges
Interior, for the length of patch radiating element 2 in 35-45 millimeters of ranges, width passes through short-circuiting jumper 3 in 18-28 millimeters of ranges
Connecting radiation patch unit 2, the length of short-circuiting jumper 3 is in 2-4 millimeters of ranges, highly in 14-16 millimeters of ranges, medium
5 length of sheet metal is in 22-24 millimeters of ranges, highly in 13-14 millimeters of ranges, wide 4 length of band microstrip line is 22-24 milli
Rice range in, highly for have slotted section in 1-2 millimeters of ranges, on patch radiating element 2, it can be achieved that antenna multiple-frequency operation.
As shown in Fig. 2, the slotted section of patch radiating element 2, U-shaped gap 6 includes four sections of squaerial being sequentially connected
Unit, respectively the first squaerial unit L1, the second squaerial unit W1, third squaerial unit L2 and the 4th rectangle
Antenna element W2.First squaerial unit L1 length is 4 millimeters, and the second squaerial unit W1 length is 15 millimeters, third
Squaerial unit L2 length is 35 millimeters, and the 4th squaerial unit W2 length is 17 millimeters, the first seam length in U-shaped gap 6
T1 is 1 millimeter；First squaerial unit L1 is parallel with third squaerial unit L2, the second squaerial unit W1 and the 4th
Squaerial unit W2 is parallel.
Short L-type gap 7 includes two sections of squaerial units being sequentially connected, respectively the 5th squaerial unit W3 and the
Six squaerial unit L3.Wherein, the 5th squaerial unit W3 and the 6th squaerial unit L3 are mutually perpendicular to；5th rectangle
Antenna element W3 length is 14 millimeters, and the 6th squaerial unit L3 length is 5 millimeters, and the second long T2 of seam in short L-type gap 7 is
1 millimeter.
Long L-type gap 8 includes two sections of squaerial units being sequentially connected, respectively the 7th squaerial unit W4 and the
Eight squaerial unit L4.Wherein, the 7th squaerial unit W4 and the 8th squaerial unit L4 are mutually perpendicular to；7th rectangle
Antenna element W4 length is 14 millimeters, and the 8th squaerial unit L4 length is 9 millimeters, and the third in long L-type gap 8 stitches long T3 and is
1 millimeter.
Embodiment
As shown in Figure 1, the length of metal ground plane 1 is 100 millimeters, width is 40 millimeters.The length of patch radiating element 2
Degree is 40 millimeters, and width is 23 millimeters, and it is highly 3 millimeters that the length of short-circuiting jumper 3, which is 15 millimeters,.Wide band microstrip line 4
Length is 23 millimeters, is highly 1.5 millimeters.The length of medium sheet metal 5 is 23 millimeters, is highly 13.5 millimeters.
As shown in figure 3, carrying out emulation experiment to this car antenna with electromagnetic simulation software HFSS.Test reflection coefficient
S11 characteristic, S11 < -10dB between 0.92-0.98GHz, 2.60-3.26GHz and 3.35-3.70GHz, relative bandwidth are respectively
6.3%, 22.5% and 9.9%, and three resonance points are generated at 0.95GHz, 2.83GHz and 3.56GHz, realize broadband
Characteristic.
As Figure 4-Figure 6, emulation experiment is carried out to this car antenna with electromagnetic simulation software HFSS.It is set forth
Radiation pattern on tri- frequency points of 1.3GHz, 2.0GHz and 2.7GHz.It can be seen that this antenna is over different frequencies
What is radiated is functional, and it all has stronger radianting capacity in all directions, i.e., this antenna has preferable omnidirectional's spoke
Penetrate characteristic.
Claims (8)
1. a kind of omnidirectional radiation car antenna, it is characterised in that: including metal ground plane (1) and radiation patch unit (2), with
The metal ground plane (1) is substrate, and the radiation patch unit (2) is parallel to metal ground plane (1), described
Radiation patch unit (2) one end is connected by short-circuiting jumper (3) with metal ground plane (1), and the other end passes sequentially through medium
Sheet metal (5) is vertical with wide band microstrip line (4) to be connected with metal ground plane (1)；On the radiation patch unit (2)
Fluting, respectively U-shaped gap (6), short L-type gap (7) and long L-type gap (8).
2. a kind of omnidirectional radiation car antenna according to claim 1, it is characterised in that: the short-circuiting jumper (3)
For connection metal ground plane (1) and radiation patch unit (2) metal medium, the wide band microstrip line (4) is at feed.
3. a kind of omnidirectional radiation car antenna according to claim 1, it is characterised in that: the wide band microstrip line
(4) it is connected with same length medium sheet metal (5).
4. a kind of omnidirectional radiation car antenna according to claim 1, it is characterised in that: the metal ground plane
(1) length is 80-120 millimeters, and width is 20-60 millimeters, and the length of patch radiating element (2) is 35-45 millimeters, and width is
18-28 millimeters；The length of the short-circuiting jumper (3) is 2-4 millimeters, is highly 14-16 millimeters, the medium sheet metal
(5) length is 22-24 millimeters, is highly 13-14 millimeters；Wide band microstrip line (4) length is 22-24 millimeters, height
It is 1-2 millimeters.
5. a kind of omnidirectional radiation car antenna according to claim 4, it is characterised in that: the metal ground plane
(1) length is 100 millimeters, and width is 40 millimeters, and the length of the patch radiating element (2) is 40 millimeters, width 23
The length of millimeter, the short-circuiting jumper (3) is 3 millimeters, is highly 15 millimeters, the length of the wide band microstrip line (4)
Degree is 23 millimeters, is highly 1.5 millimeters；Medium sheet metal (5) length is 23 millimeters, is highly 13.5 millimeters.
6. a kind of omnidirectional radiation car antenna according to claim 1, it is characterised in that: the U-shaped gap (6) includes
Four sections of squaerial units being sequentially connected, respectively the first squaerial unit (L1), the second squaerial unit (W1),
Three squaerial units (L2) and the 4th squaerial unit (W2)；The short L-type gap (7) includes the connected vertically 5th
Squaerial unit (W3) and the 6th squaerial unit (L3), the long L-type gap (8) includes the 7th square connected vertically
Shape antenna element (W4) and the 8th squaerial unit (L4).
7. a kind of omnidirectional radiation car antenna according to claim 6, it is characterised in that: the first squaerial list
First (L1), third squaerial unit (L2), the 6th squaerial unit (L3) and the 8th squaerial unit (L4) are mutually flat
Row, the second squaerial unit (W1), the 4th squaerial unit (W2), the 5th squaerial unit (W3) and the 7th
Squaerial unit (W4) is parallel to each other；After cooperation, the second squaerial unit (W1) and the 5th squaerial unit
(W3) close, the 4th squaerial unit (W2) and the 7th squaerial unit (W4) are close.
8. a kind of omnidirectional radiation car antenna according to claim 6, it is characterised in that: the first squaerial list
First (L1) length is 4 millimeters, and the second squaerial unit (W1) length is 15 millimeters, and third squaerial unit (L2) length is
35 millimeters, the 4th squaerial unit (W2) length is 17 millimeters, and it is 1 millimeter that the first of U-shaped gap (6), which stitches long (T1),；5th
Squaerial unit (W3) length is 14 millimeters, and the 6th squaerial unit (L3) length is 5 millimeters, the of short L-type gap (7)
Two seams long (T2) are 1 millimeter；7th squaerial unit (W4) length is 14 millimeters, and the 8th squaerial unit (L4) length is
9 millimeters, it is 1 millimeter that the third of long L-type gap (8), which stitches long (T3),.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910796191.XA CN110518336A (en) | 2019-08-27 | 2019-08-27 | A kind of omnidirectional radiation car antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910796191.XA CN110518336A (en) | 2019-08-27 | 2019-08-27 | A kind of omnidirectional radiation car antenna |
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| CN110518336A true CN110518336A (en) | 2019-11-29 |
Family
ID=68628175
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| CN201910796191.XA Pending CN110518336A (en) | 2019-08-27 | 2019-08-27 | A kind of omnidirectional radiation car antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115000685A (en) * | 2022-06-07 | 2022-09-02 | 同济大学 | Vehicle-mounted PIFA antenna design method based on genetic algorithm and antenna thereof |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020135521A1 (en) * | 2001-03-21 | 2002-09-26 | Amphenol-T&M Antennas. | Multiband PIFA antenna for portable devices |
| CN1455970A (en) * | 2001-01-23 | 2003-11-12 | 皇家菲利浦电子有限公司 | PIFA antennea arrangement |
| CN2689482Y (en) * | 2004-04-08 | 2005-03-30 | 上海交通大学 | Built-in small planar F shaped three-frequency antenna |
| CN1669181A (en) * | 2002-07-15 | 2005-09-14 | 凯瑟雷恩工厂两合公司 | Low-height dual or multi-band antenna, in particular for motor vehicles |
| CN1836350A (en) * | 2003-08-15 | 2006-09-20 | 皇家飞利浦电子股份有限公司 | Antenna arrangement and a module and a radio communications apparatus having such an arrangement |
| CN1885613A (en) * | 2005-06-24 | 2006-12-27 | 连展科技（深圳）有限公司 | Inversed-F type antenna |
| CN1947304A (en) * | 2004-04-06 | 2007-04-11 | 皇家飞利浦电子股份有限公司 | Multi-band compact PIFA antenna with meandered slot(s) |
| CN101465467A (en) * | 2008-12-06 | 2009-06-24 | 惠州市硕贝德通讯科技有限公司 | Tri-frequency plane patch antenna and design method |
| CN101783435A (en) * | 2010-04-23 | 2010-07-21 | 上海大学 | Novel three-frequency plane inverted F-shaped antenna |
| CN101834342A (en) * | 2009-03-11 | 2010-09-15 | 许秋月 | Built-in multi-frequency planar inverted-F antenna (PIFA) of mobile phone |
| CN201766162U (en) * | 2009-12-31 | 2011-03-16 | 天津工程师范学院 | Plane inverted F-shaped antenna |
| CN104681946A (en) * | 2013-11-27 | 2015-06-03 | 哈尔滨飞羽科技有限公司 | Novel multi-band planar inverted-F mobile phone antenna |
| CN105449347A (en) * | 2014-05-30 | 2016-03-30 | 联想(北京)有限公司 | Antenna and communication electronic equipment |
| CN205692948U (en) * | 2016-05-09 | 2016-11-16 | 天津职业技术师范大学 | Flag-shaped isometric L-shaped groove dual-band antenna |
| US20180040943A1 (en) * | 2007-06-21 | 2018-02-08 | Apple Inc. | Wireless Handheld Electronic Device |
| US10205239B1 (en) * | 2014-05-07 | 2019-02-12 | Energous Corporation | Compact PIFA antenna |
-
2019
- 2019-08-27 CN CN201910796191.XA patent/CN110518336A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1455970A (en) * | 2001-01-23 | 2003-11-12 | 皇家菲利浦电子有限公司 | PIFA antennea arrangement |
| US20020135521A1 (en) * | 2001-03-21 | 2002-09-26 | Amphenol-T&M Antennas. | Multiband PIFA antenna for portable devices |
| CN1669181A (en) * | 2002-07-15 | 2005-09-14 | 凯瑟雷恩工厂两合公司 | Low-height dual or multi-band antenna, in particular for motor vehicles |
| CN1836350A (en) * | 2003-08-15 | 2006-09-20 | 皇家飞利浦电子股份有限公司 | Antenna arrangement and a module and a radio communications apparatus having such an arrangement |
| CN1947304A (en) * | 2004-04-06 | 2007-04-11 | 皇家飞利浦电子股份有限公司 | Multi-band compact PIFA antenna with meandered slot(s) |
| JP2007533193A (en) * | 2004-04-06 | 2007-11-15 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Planar antenna assembly with two MEMS switch switching PIFAs |
| CN2689482Y (en) * | 2004-04-08 | 2005-03-30 | 上海交通大学 | Built-in small planar F shaped three-frequency antenna |
| CN1885613A (en) * | 2005-06-24 | 2006-12-27 | 连展科技（深圳）有限公司 | Inversed-F type antenna |
| US20180040943A1 (en) * | 2007-06-21 | 2018-02-08 | Apple Inc. | Wireless Handheld Electronic Device |
| CN101465467A (en) * | 2008-12-06 | 2009-06-24 | 惠州市硕贝德通讯科技有限公司 | Tri-frequency plane patch antenna and design method |
| CN101834342A (en) * | 2009-03-11 | 2010-09-15 | 许秋月 | Built-in multi-frequency planar inverted-F antenna (PIFA) of mobile phone |
| CN201766162U (en) * | 2009-12-31 | 2011-03-16 | 天津工程师范学院 | Plane inverted F-shaped antenna |
| CN101783435A (en) * | 2010-04-23 | 2010-07-21 | 上海大学 | Novel three-frequency plane inverted F-shaped antenna |
| CN104681946A (en) * | 2013-11-27 | 2015-06-03 | 哈尔滨飞羽科技有限公司 | Novel multi-band planar inverted-F mobile phone antenna |
| US10205239B1 (en) * | 2014-05-07 | 2019-02-12 | Energous Corporation | Compact PIFA antenna |
| CN105449347A (en) * | 2014-05-30 | 2016-03-30 | 联想(北京)有限公司 | Antenna and communication electronic equipment |
| CN205692948U (en) * | 2016-05-09 | 2016-11-16 | 天津职业技术师范大学 | Flag-shaped isometric L-shaped groove dual-band antenna |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115000685A (en) * | 2022-06-07 | 2022-09-02 | 同济大学 | Vehicle-mounted PIFA antenna design method based on genetic algorithm and antenna thereof |
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Application publication date: 20191129 |
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