CN105206926B - A kind of wearable antenna - Google Patents
A kind of wearable antenna Download PDFInfo
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- CN105206926B CN105206926B CN201410294301.XA CN201410294301A CN105206926B CN 105206926 B CN105206926 B CN 105206926B CN 201410294301 A CN201410294301 A CN 201410294301A CN 105206926 B CN105206926 B CN 105206926B
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Abstract
The embodiment of the invention discloses a kind of wearable antennas, comprising: electromagnetic field band gap substrate, antenna radiator and the first medium layer between electromagnetic field band gap substrate and antenna radiator；The antenna radiator includes: the concave metal layer for deviating from electromagnetic field band gap one side of substrate positioned at first medium layer；Deviate from the second dielectric layer of first medium layer side positioned at concave metal layer；Deviate from the microstrip line of concave metal layer side positioned at second dielectric layer, the microstrip line includes the first conducting wire and the second conducting wire of electrical connection；Wherein, opening direction the first conducting wire of direction of concave metal layer, and projection of the concave metal layer on first medium layer is not overlapped with projection of first conducting wire on first medium layer, projection covering second conducting wire projection on first medium layer of the concave metal layer on first medium layer.The wearable antenna volume is smaller, and radiation efficiency is higher, is suitble to wearing.
Description
Technical field
The present invention relates to antenna technical field more particularly to a kind of wearable antennas.
Background technique
In recent years, with the continuous diminution of wireless telecom equipment, wearable wireless telecom equipment is rapidly developed.And
Essential element of the antenna as wireless communication can divide it from communication equipment to reduce the volume of entire donning system
It separates out and, as an independent part, be worn on the clothing of people or people.But antenna volume in the prior art is larger,
Even if the smallest antenna for mobile phone, height is not appropriate for dressing also at 8 millimeters or so.
Summary of the invention
In order to solve the above technical problems, being suitble to wearing, and radiate effect the embodiment of the invention provides a kind of wearable antenna
Rate is higher.
To solve the above problems, the embodiment of the invention provides following technical solutions:
A kind of wearable antenna, comprising: electromagnetic field band gap substrate, antenna radiator and be located at the electromagnetic field band gap substrate
First medium layer between antenna radiator；
The antenna radiator includes: the spill for deviating from electromagnetic field band gap one side of substrate positioned at the first medium layer
Metal layer；Deviate from the second dielectric layer of first medium layer side positioned at the concave metal layer；Positioned at the second medium
Layer deviates from the microstrip line of concave metal layer side, and the microstrip line includes the first conducting wire and the second conducting wire of electrical connection；
Wherein, the opening direction of the concave metal layer is towards first conducting wire, and the concave metal layer is described
Projection on first medium layer is not overlapped with projection of first conducting wire on the first medium layer, the concave metal layer
Projection on the first medium layer covers projection of second conducting wire on the first medium layer.
Preferably, the length of the concave metal layer opening is the wearable antenna operating wavelength range central wavelength
1/4。
Preferably, the resonance frequency phase of the anomalous phase frequency of the electromagnetic field band gap substrate and the wearable antenna
Together.
Preferably, the electromagnetic field band gap substrate includes:
The first metal layer, insulating substrate and positioned at the insulating substrate away from the first metal layer side it is multiple be in square
The electromagnetic field bandgap cell of battle array arrangement.
Preferably, the top view shapes of the electromagnetic field bandgap cell are rectangular, round or ellipse.
Preferably, the number of the electromagnetic field bandgap cell is 4-6, including endpoint value.
Preferably, the electromagnetic field bandgap cell is mushroom-shaped electromagnetic field bandgap cell or period tuning-fork-type electromagnetic field band
Gap unit or diamond type electromagnetic field bandgap cell or coplanar compact type electromagnetic field bandgap cell.
Preferably, the first medium layer is FR4 medium；The second dielectric layer is FR4 medium.
Preferably, the first medium layer on the EBG substrate to antenna radiator direction with a thickness of 1.2mm.
Preferably, the microstrip line further include: be located at the second dielectric layer and deviate from concave metal layer side, with institute
State the privates of the second conducting wire electrical connection；
The privates projects in the second dielectric layer falls within the concave metal layer in the second dielectric layer
On drop shadow spread in, and the privates is in the plane for being parallel to the second dielectric layer, along perpendicular to the spill
The projection of metal layer opening direction and the opening of the concave metal layer are in the plane for being parallel to the second dielectric layer, along vertical
It is not overlapped in the projection of the concave metal layer opening direction directly.
Compared with prior art, above-mentioned technical proposal has the advantage that
Wearable antenna provided by the present invention, comprising: electromagnetic field band gap substrate, antenna radiator and be located at the electromagnetism
First medium layer between field band gap substrate and antenna radiator, wherein the antenna radiator includes: to be situated between positioned at described first
Matter layer deviates from the concave metal layer of electromagnetic field band gap one side of substrate；Deviate from the first medium positioned at the concave metal layer
The second dielectric layer of layer side；Deviate from the microstrip line of concave metal layer side, thinner thickness positioned at the second dielectric layer.
Moreover, the microstrip line includes the first conducting wire and second of electrical connection in wearable antenna provided by the present invention
Conducting wire；Wherein, the opening direction of the concave metal layer is towards first conducting wire, and the concave metal layer and described first
Projection of the conducting wire on the first medium layer does not overlap, projection covering of the concave metal layer on the first medium layer
Projection of second conducting wire on the first medium layer, so that the microstrip line and concave metal layer composition bar
Human relations antenna, wherein first conducting wire is used for receiving antenna radiation signal, and second conducting wire and the concave metal layer are constituted
Balanced-to-unblanced transformer, so that antenna current concentrates on around antenna, the edge without being distributed to ground is gone, and is improved
The density of electric current, area is smaller, recycles the electromagnetic field band gap substrate to carry out coupling radiation to the radiation signal after conversion, mentions
The radiation efficiency of the high wearable antenna.
It can be seen that wearable antenna provided by the embodiment of the present invention, thinner thickness, area is smaller, radiation efficiency compared with
Height, so that the small volume of the wearable antenna, radiation efficiency is higher, is suitble to wearing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of wearable antenna provided by one embodiment of the invention；
Fig. 2 is the top view of microstrip line and concave metal layer in wearable antenna provided by one embodiment of the invention；
Fig. 3 is the structural schematic diagram of electromagnetic field band gap substrate in wearable antenna provided by one embodiment of the invention；
Fig. 4 is the top view of electromagnetic field bandgap cell in electromagnetic field band gap substrate provided by one embodiment of the invention；
Fig. 5 is provided in another embodiment of the present invention in wearable antenna, and microstrip line and concave metal layer are bowed
View；
Fig. 6 is frequency-radiation efficiency curve schematic diagram of wearable antenna, wherein curve 1 is the wearable of expected acquisition
The frequency of antenna-radiation efficiency curve schematic diagram, curve 2 are frequency-spoke of wearable antenna provided by the embodiment of the present invention
Efficiency curve schematic diagram is penetrated, curve 3 is the frequency for increasing the antenna structure of metal layer between FPC antenna and human body in the prior art
Rate-radiation efficiency curve schematic diagram.
Specific embodiment
Just as described in the background section, antenna in the prior art is not appropriate for dressing.
FPC antenna can be attached to human body surface the study found that FPC antenna is very thin by inventor, solve day in the prior art
The larger problem of line volume.But the dielectric constant of tissue is higher, antenna is tightly attached to human body surface, can make antenna
Resonance frequency ratio is low in air, so that the frequency of FPC antenna is to low drifting, moreover, the energy of aerial radiation also can be by human body
Tissue resorption, radiation efficiency are very low.
Inventor on the basis of the studies above, further study show that, gold can be inserted between FPC antenna and human body
Belong to layer, to avoid the direct contact of FPC antenna and human body, thus caused by solving due to FPC antenna and direct body contact
The lower problem of radiation efficiency.But since metal is electric wall, antenna is close to metal, can make the image current direction of antenna
It is contrary with the actual current of antenna, the same radiation efficiency for reducing antenna,
Inventor is on the basis of the studies above, further the study found that can use EBG (Electromagnetic
Band Gap, i.e. electromagnetic field band gap) structure replace metal layer insertion FPC antenna and human body between.Due to EBG
(Electromagnetic Band Gap, i.e. electromagnetic field band gap) structure is magnetic wall in special frequency channel, can make the mirror of antenna
Image current direction is identical with the actual current direction of antenna, will not reduce the radiation efficiency of antenna.But antenna in the prior art
Current distribution range is wider, in order to improve the radiation efficiency of antenna, needs the area of EBG sufficiently large, almost with entire shirtfront or
The area of back is identical, could be effective, so that it is not easy to dress.
In view of this, the embodiment of the invention provides a kind of wearable antennas, comprising: electromagnetic field band gap substrate, antenna spoke
Emitter and the first medium layer between the electromagnetic field band gap substrate and antenna radiator；
The antenna radiator includes: the spill for deviating from electromagnetic field band gap one side of substrate positioned at the first medium layer
Metal layer；Deviate from the second dielectric layer of first medium layer side positioned at the concave metal layer；Positioned at the second medium
Layer deviates from the microstrip line of concave metal layer side, and the microstrip line includes the first conducting wire and the second conducting wire of electrical connection；
Wherein, the opening direction of the concave metal layer is towards first conducting wire, and the concave metal layer is described
Projection on first medium layer is not overlapped with projection of first conducting wire on the first medium layer, the concave metal layer
Projection on the first medium layer covers projection of second conducting wire on the first medium layer.
From the foregoing, it will be observed that wearable antenna provided by the embodiment of the present invention, comprising: electromagnetic field band gap substrate, aerial radiation
Device and first medium layer, and the antenna radiator includes: concave metal layer, second dielectric layer and microstrip line, thinner thickness.
Moreover, the microstrip line includes the first conducting wire of electrical connection in wearable antenna provided by the embodiment of the present invention
With the second conducting wire, balun antenna is constituted so as to the utilization microstrip line and the concave metal layer, wherein described first leads
Line is used for receiving antenna radiation signal, and second conducting wire and the concave metal layer constitute balanced-to-unblanced transformer and make
Antenna current concentrates on around antenna, and the edge without being distributed to ground is gone, and improves the density of electric current, and area is smaller, makes
It is smaller to obtain the wearable antenna volume, is suitble to wearing, recycles the electromagnetic field band gap substrate to the radiation signal after conversion
Coupling radiation is carried out, the radiation efficiency of the wearable antenna is improved, so that the radiation efficiency of the wearable antenna is higher.
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
Detail is elaborated in the following description to fully understand the present invention.But the present invention can with it is a variety of not
Other way described herein is same as to implement, those skilled in the art can do class without violating the connotation of the present invention
Like popularization.Therefore the present invention is not limited to the specific embodiments disclosed below.
As shown in Figure 1, the embodiment of the invention provides a kind of wearable antennas, comprising: electromagnetic field band gap substrate 1, antenna
Radiator 3 and the first medium layer 2 between the electromagnetic field band gap substrate 1 and antenna radiator 3；The antenna radiator
3 include: the concave metal layer 301 for deviating from 1 side of electromagnetic field band gap substrate positioned at the first medium layer 2；Positioned at described
Concave metal layer 301 deviates from the second dielectric layer 302 of 2 side of first medium layer；Deviate from positioned at the second dielectric layer 302
The microstrip line 303 of 301 side of concave metal layer, as shown in Fig. 2, the microstrip line 303 includes the first conducting wire of electrical connection
3031 and second conducting wire 3032.Wherein, the opening direction of the concave metal layer 301 is towards first conducting wire 3031, and institute
State concave metal layer 301 on the first medium layer 2 projection and first conducting wire 3031 on the first medium layer 2
Projection do not overlap, projection of the concave metal layer 301 on the first medium layer 2 covers second conducting wire 3032 and exists
Projection on the first medium layer 2.
In embodiments of the present invention, the microstrip line 303 and the concave metal layer 301 constitute balun antenna, wherein institute
The first conducting wire 3031 is stated to constitute and put down for receiving antenna radiation signal, second conducting wire 3032 and the concave metal layer 301
Weighing apparatus-imbalance converter, so that antenna current concentrates on around antenna, the edge without being distributed to ground is gone, and improves electricity
The density of stream, area are smaller；The electromagnetic field band gap substrate 1 is improved for carrying out coupling radiation to the radiation signal after conversion
The radiation efficiency of the wearable antenna.
It should be noted that in embodiments of the present invention, the length that the concave metal layer 301 is open is preferably described to wear
Wear the 1/4 of any wavelength of formula antenna operating wavelength range.It is furthermore preferred that the length that the concave metal layer 301 is open is described
The 1/4 of wearable antenna operating wavelength range central wavelength, the present invention to this and without limitation, specifically depend on the circumstances.
Since the frequency where the anomalous phase area of the electromagnetic field band gap substrate 1 is 1 energy of electromagnetic field band gap substrate
Enough become the frequency of magnetic wall, and when the frequency of the electromagnetic field band gap substrate 1 is located at its magnetic wall frequency band, it can make described
The image current direction of wearable antenna is identical as the actual current direction of the wearable antenna, to improve described wearable
The radiation efficiency of antenna.Therefore in one embodiment of the invention, the anomalous phase frequency of the electromagnetic field band gap substrate 1 and institute
The resonance frequency for stating wearable antenna is identical, to significantly improve the radiation efficiency of the wearable antenna.
Based on any of the above embodiments, in one embodiment of the invention, as shown in Figure 3 and Figure 4, the electricity
Magnetic field band gap substrate 1 includes:
The first metal layer 101, insulating substrate 102 and be located at the insulating substrate 102 deviate from the first metal layer 101 1
Multiple electromagnetic field bandgap cells 103 arranged in arrays of side.
It should be noted that in embodiments of the present invention, due to second conducting wire 3032 and the concave metal layer 301
Balanced-to-unblanced transformer is constituted, so that antenna current concentrates on around antenna, the edge without being distributed to ground is gone.Cause
This only needs a small amount of electromagnetic field bandgap cell 103, that is, the wearable radiation efficiency can be improved in embodiments of the present invention.
In one embodiment of the invention, the number of the electromagnetic field bandgap cell 103 is preferably 4-6, including endpoint value, but this
To this and without limitation, the number of the electromagnetic field bandgap cell 103 is more, and the radiation efficiency of the wearable antenna is got over for invention
Height, correspondingly, the area of the wearable antenna also will increase, the number of the electromagnetic field bandgap cell 103 is fewer, described to wear
The area for wearing formula antenna is smaller, correspondingly, its radiation efficiency can also reduce, with specific reference to the application demand of the wearable antenna
Depending on.
It should also be noted that, in embodiments of the present invention, the top view of the electromagnetic field bandgap cell 103 can be side
Shape, or it is round, it can also be ellipse or other shapes, the present invention is to this and without limitation, depending on the circumstances.
Due to compared to other kinds of electromagnetic field bandgap cell 103, mushroom-shaped electromagnetic field bandgap cell 103 is in identical faces
Coupling radiation effect in product situation is preferable, therefore based on any of the above embodiments, in one embodiment of the invention,
The electromagnetic field bandgap cell 103 is preferably mushroom-shaped electromagnetic field bandgap cell 103.To in identical quantity electromagnetic field band line list
In the case where member, the radiation efficiency of the wearable antenna is effectively improved.But the present invention is to this and without limitation, of the invention
In other embodiments, the electromagnetic field bandgap cell 103 can also be period tuning-fork-type electromagnetic field bandgap cell or diamond type electricity
Magnetic field bandgap cell or coplanar compact type electromagnetic field bandgap cell (uni-planar electromagnetic band-gap,
UC-EBG), as long as being electromagnetic field bandgap cell 103.
Based on any of the above embodiments, in one embodiment of the invention, the first medium layer 2 can be
The plate of FR4 medium or Rogers (Rogers) dielectric constant Er=2.5, the present invention to this and without limitation, as long as being PCB material
Matter.Similarly, the second dielectric layer 302 may be FR4 medium or Rogers (Rogers) dielectric constant Er=2.5
Plate, the present invention to this also without limitation, as long as being PCB material.
On the basis of the above embodiments, in one particular embodiment of the present invention, the resonance of the wearable antenna
For frequency within the scope of 2GHz-3GHz, the first medium layer 2 and the second dielectric layer 302 are FR4 medium, and described first
Thickness range of the dielectric layer 2 on the EBG substrate to 3 direction of antenna radiator is 1.2mm, but the present invention does not limit this
It is fixed, specifically depend on the circumstances.
Based on any of the above embodiments, in one embodiment of the invention, as shown in figure 5, the microstrip line
303 further include: be located at the second dielectric layer 302 and deviate from 301 side of concave metal layer, with 3032 electricity of the second conducting wire
The privates 3033 of connection；Wherein, the privates 3033 projects in the second dielectric layer 302 and falls within the spill
Metal layer 301 is in the drop shadow spread in the second dielectric layer 302, and the privates 3033 is being parallel to described second
In the plane of dielectric layer 302, projection and the concave metal layer 301 of the edge perpendicular to 301 opening direction of concave metal layer
Opening in the plane for being parallel to the second dielectric layer 302, along perpendicular to 301 opening direction of concave metal layer throwing
Shadow does not overlap, to increase the bandwidth of the wearable antenna.
As shown in fig. 6, wearable antenna provided by the embodiment of the present invention is shown in Fig. 6, in the prior art at FPC days
Frequency-radiation efficiency curve of the antenna structure and the expected wearable antenna obtained that increase metal layer between line and human body is shown
It is intended to, wherein curve 1 is frequency-radiation efficiency curve schematic diagram of the expected wearable antenna obtained, and curve 2 is the present invention
The frequency of wearable antenna provided by embodiment-radiation efficiency curve schematic diagram, curve 3 are in the prior art in FPC antenna
Increase frequency-radiation efficiency curve schematic diagram of the antenna structure of metal layer between human body.From fig. 6 it can be seen that
The radiation efficiency of the frequency point of 2830MHz, wearable antenna provided by the embodiment of the present invention is much higher than in the prior art at FPC days
Increase the radiation efficiency of the antenna structure of metal layer between line and human body, and is closer to the spoke of the wearable antenna of expected acquisition
Penetrate efficiency.
In conclusion wearable antenna provided by the embodiment of the present invention, comprising: electromagnetic field band gap substrate 1, aerial radiation
Device 3 and the first medium layer 2 between the electromagnetic field band gap substrate 1 and antenna radiator 3, wherein the aerial radiation
Device 3 includes: the concave metal layer 301 for deviating from electromagnetic field band gap side positioned at the first medium layer 2；Positioned at the spill
Metal layer 301 deviates from the second dielectric layer 302 of 2 side of first medium layer；Positioned at the second dielectric layer 302 away from described
The microstrip line 303 of 301 side of concave metal layer, thinner thickness.
Moreover, the microstrip line 303 includes the first conducting wire 3031 of electrical connection in wearable antenna provided by the present invention
With the second conducting wire 3032；Wherein, the opening direction of the concave metal layer 301 is towards first conducting wire 3031, and described recessed
Shape metal layer 301 is not overlapped with projection of first conducting wire 3031 on the first medium layer 2, the concave metal layer
301 projection on the first medium layer 2 covers projection of second conducting wire 3032 on the first medium layer 2, from
And the microstrip line 303 and the concave metal layer 301 is made to constitute balun antenna, wherein first conducting wire 3031 is used for
Receiving antenna radiation signal, second conducting wire 3032 and the concave metal layer 301 constitute balanced-to-unblanced transformer, make
Antenna current is obtained to concentrate on around antenna, the edge without being distributed to ground is gone, and improves the density of electric current, and area is smaller,
So that the small volume of the wearable antenna, is suitble to wearing.
In addition, also utilizing described 1 pair of electromagnetic field band gap substrate conversion in wearable antenna provided by the embodiment of the present invention
Radiation signal afterwards carries out coupling radiation, improves the radiation efficiency of the wearable antenna.
It can be seen that wearable antenna provided by the embodiment of the present invention, small volume, radiation efficiency is higher, is suitble to wear
It wears.
Various pieces are described in a progressive manner in this specification, and what each some importance illustrated is and other parts
Difference, same and similar part may refer to each other between various pieces.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to embodiment illustrated herein, and is to fit to consistent with the principles and novel features disclosed in this article
Widest scope.
Claims (10)
1. a kind of wearable antenna characterized by comprising electromagnetic field band gap substrate, antenna radiator and be located at the electromagnetism
First medium layer between field band gap substrate and antenna radiator；
The antenna radiator includes: the concave metal for deviating from electromagnetic field band gap one side of substrate positioned at the first medium layer
Layer；Deviate from the second dielectric layer of first medium layer side positioned at the concave metal layer；It is carried on the back positioned at the second dielectric layer
Microstrip line from concave metal layer side, the microstrip line include the first conducting wire and the second conducting wire of electrical connection；
Wherein, the opening direction of the concave metal layer is towards first conducting wire, and the concave metal layer is described first
Projection on dielectric layer is not overlapped with projection of first conducting wire on the first medium layer, and the concave metal layer is in institute
It states the projection on first medium layer and covers projection of second conducting wire on the first medium layer, first conducting wire direction
Parallel with the opening direction of the concave metal layer, the opening direction of the concave metal layer is the side parallel with the second conducting wire
To.
2. wearable antenna according to claim 1, which is characterized in that the length of the concave metal layer opening is described
The 1/4 of wearable antenna operating wavelength range central wavelength.
3. wearable antenna according to claim 1, which is characterized in that the anomalous phase frequency of the electromagnetic field band gap substrate
Rate is identical as the resonance frequency of the wearable antenna.
4. wearable antenna according to claim 3, which is characterized in that the electromagnetic field band gap substrate includes:
The first metal layer, insulating substrate and positioned at the insulating substrate away from the first metal layer side it is multiple in matrix arrange
The electromagnetic field bandgap cell of column.
5. wearable antenna according to claim 4, which is characterized in that the top view shapes of the electromagnetic field bandgap cell
For rectangular, round or ellipse.
6. wearable antenna according to claim 4, which is characterized in that the number of the electromagnetic field bandgap cell is 4-6
It is a, including endpoint value.
7. wearable antenna according to claim 6, which is characterized in that the electromagnetic field bandgap cell is mushroom-shaped electromagnetism
Field bandgap cell or period tuning-fork-type electromagnetic field bandgap cell or diamond type electromagnetic field bandgap cell or coplanar compact type electromagnetism
Field bandgap cell.
8. wearable antenna according to claim 1, which is characterized in that the first medium layer is FR4 medium；Described
Second medium layer is FR4 medium.
9. wearable antenna according to claim 8, which is characterized in that the first medium layer is arrived along the EBG substrate
On antenna radiator direction with a thickness of 1.2mm.
10. -9 described in any item wearable antennas according to claim 1, which is characterized in that the microstrip line further include: be located at
The second dielectric layer deviates from concave metal layer side, the privates being electrically connected with second conducting wire；
The privates projects in the second dielectric layer falls within the concave metal layer in the second dielectric layer
In drop shadow spread, and the privates, in the plane for being parallel to the second dielectric layer, edge is perpendicular to the concave metal
The projection of layer opening direction with the opening of the concave metal layer in the plane for being parallel to the second dielectric layer, along perpendicular to
The projection of the concave metal layer opening direction does not overlap.
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| CN201410294301.XA CN105206926B (en) | 2014-06-26 | 2014-06-26 | A kind of wearable antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410294301.XA CN105206926B (en) | 2014-06-26 | 2014-06-26 | A kind of wearable antenna |
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| CN105206926A CN105206926A (en) | 2015-12-30 |
| CN105206926B true CN105206926B (en) | 2019-01-15 |
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|---|---|---|---|---|
| US7595757B2 (en) * | 2007-04-24 | 2009-09-29 | Sony Ericsson Mobile Communications Ab | Electrical connection elements provided in the AMC structure of an antenna arrangement |
| US20100149060A1 (en) * | 2008-12-12 | 2010-06-17 | National Taiwan University | Antenna module and design method thereof |
| CN102110882A (en) * | 2009-12-02 | 2011-06-29 | Lg电子株式会社 | Antenna device and portable terminal having the same |
| CN102147877A (en) * | 2011-03-29 | 2011-08-10 | 成都鼎格科技有限公司 | Electronic tag |
| CN102299418A (en) * | 2011-06-15 | 2011-12-28 | 集美大学 | Multilayer broadband microstrip antenna |
| US20140097995A1 (en) * | 2012-04-03 | 2014-04-10 | William E. McKinzie, III | Artificial magnetic conductor antennas with shielded feedlines |
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2014
- 2014-06-26 CN CN201410294301.XA patent/CN105206926B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7595757B2 (en) * | 2007-04-24 | 2009-09-29 | Sony Ericsson Mobile Communications Ab | Electrical connection elements provided in the AMC structure of an antenna arrangement |
| US20100149060A1 (en) * | 2008-12-12 | 2010-06-17 | National Taiwan University | Antenna module and design method thereof |
| CN102110882A (en) * | 2009-12-02 | 2011-06-29 | Lg电子株式会社 | Antenna device and portable terminal having the same |
| CN102147877A (en) * | 2011-03-29 | 2011-08-10 | 成都鼎格科技有限公司 | Electronic tag |
| CN102299418A (en) * | 2011-06-15 | 2011-12-28 | 集美大学 | Multilayer broadband microstrip antenna |
| US20140097995A1 (en) * | 2012-04-03 | 2014-04-10 | William E. McKinzie, III | Artificial magnetic conductor antennas with shielded feedlines |
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| CN105206926A (en) | 2015-12-30 |
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