WO2012029639A1 - アンテナ - Google Patents
アンテナ Download PDFInfo
- Publication number
- WO2012029639A1 WO2012029639A1 PCT/JP2011/069244 JP2011069244W WO2012029639A1 WO 2012029639 A1 WO2012029639 A1 WO 2012029639A1 JP 2011069244 W JP2011069244 W JP 2011069244W WO 2012029639 A1 WO2012029639 A1 WO 2012029639A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- antenna
- frequency
- unit
- electromagnetic coupling
- antenna unit
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
-
- 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
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
- H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
- H01Q9/27—Spiral antennas
Definitions
- the present invention relates to an antenna for transmitting or receiving radio waves having a function of communicating with a plurality of communication methods.
- Mobile communication devices such as mobile phones and car navigation systems are widely used. Each device has its own frequency and polarization method.
- a global positioning system such as a car navigation system
- circularly polarized radio waves are used.
- Patent Document 1 describes an antenna having a small circular polarization characteristic while being small.
- Patent Documents 2 and 3 propose a shared antenna that can transmit and receive a plurality of radio waves having different wave numbers and polarizations.
- Patent Document 1 Although the antenna described in Patent Document 1 has a good circular polarization characteristic with a small and simple configuration, the antenna for performing communication of linear polarization is not described in the same document.
- Mobile phones with a GPS function are equipped with linearly polarized antennas and circularly polarized antennas, but the size of the antenna increases accordingly, and it is difficult to arrange for incorporation into a small device. There must be. Further, when antennas having different characteristics are brought close to each other, they interfere with each other, and the performance is degraded.
- the antenna described in Patent Document 2 is a film antenna in which a conductor is laminated on an insulating film, and may operate as a circularly polarized antenna and a linearly polarized antenna.
- the first operating frequency is 2.6 GHz and the second operating frequency is 5.8 GHz.
- direct polarization 1.5 GHz circular polarization 2
- the size becomes too large to be mounted on a small device such as a mobile phone terminal.
- the antenna described in Patent Document 3 has a linearly polarized wave element and a circularly polarized wave element arranged close to each other, and is basically the same as mounting a plurality of antennas.
- the structure must be complicated and expensive, and since it has a structure of two or more layers, it is large in thickness and difficult to incorporate into a small device.
- a common antenna other than the above has been proposed in which a switch is provided in a circuit to be turned on and off.
- the apparatus is also complicated and expensive, and a special communication circuit is required for controlling the switch.
- the switches are used by switching, linearly polarized waves and circularly polarized waves cannot be used at the same time.
- an antenna in which a Ni plating layer and an Au plating layer are provided on a metallized layer such as a Cu layer or a Mo—Mn layer has been proposed, but it is also expensive.
- the antenna of the present invention is adjacent to the first antenna unit having a spiral shape that forms a cross shape a plurality of times, and is adjacent to the first antenna unit via a cutting unit. It has a second antenna section and a feeding section provided at the center, and electromagnetic coupling occurs at the cutting section at the first frequency, and electromagnetic coupling at a second frequency different from the first frequency. It does not occur.
- the second antenna unit has a spiral shape that forms a cross shape a plurality of times, and the second antenna unit is provided on the outer periphery of the first antenna unit, and the cutting unit is an outer end of the first antenna unit.
- a gap between the first antenna unit and the inner end of the second antenna unit, and a power supply unit provided in the center of the spiral circuit of the first antenna unit, the gap being spaced at the first frequency In this case, electromagnetic coupling can be generated, and electromagnetic coupling cannot be generated at a second frequency higher than the first frequency.
- the current flowing in the portion along the first direction in the peripheral circuit forming the cross shape and the current flowing in the portion along the second direction perpendicular to the first direction are It can be made to have substantially the same phase and a phase difference of substantially ⁇ / 2 at the second frequency.
- the second antenna unit is a dipole antenna provided inside the first antenna unit.
- the second antenna unit generates electromagnetic coupling at the first frequency at the cutting unit, and is higher than the first frequency at the cutting unit. It can be assumed that no electromagnetic coupling occurs at a frequency of.
- the second antenna unit is a loop antenna provided outside the first antenna unit, the electromagnetic coupling is generated at the first frequency at the cutting unit, and the second higher than the first frequency at the cutting unit. Electromagnetic coupling may not occur at a frequency of.
- the present invention can realize a small shared antenna that can communicate with a plurality of radio waves having different frequencies and polarizations. It is a simple structure, and a planar antenna with one layer and a single feeding portion (1 port) can be realized.
- FIG. 6 is a plan view showing a basic structure of an antenna of Example 2.
- FIG. 6 is a graph showing return loss characteristics by simulation of the antenna of Example 2.
- FIG. 10 is a graph showing return loss characteristics by simulation of the antenna of Example 3.
- 10 is a perspective view showing an antenna of Example 4.
- FIG. It is a graph which shows the return loss characteristic by simulation of the antenna of Example 4.
- An antenna according to the present invention includes a first antenna portion having a plurality of spiral turns forming a cross shape, a second antenna portion adjacent to the first antenna portion via a cutting portion, a center
- the power supply unit provided in the unit has an electromagnetic coupling at the cutting portion at the first frequency, and no electromagnetic coupling at the second frequency different from the first frequency.
- FIG. 1 is a plan view showing a basic structure of the antenna
- FIG. 2 is an enlarged side view showing details of a power feeding unit
- FIG. 3 is a perspective view showing an outline of the antenna.
- the antenna 1 is a planar antenna in which a cross-shaped spiral conductor line 3 is provided on a dielectric substrate 2.
- the planar antenna means that it is not necessary to take a three-dimensional structure such as a multilayer structure or a parabolic shape. Therefore, when the communication device has a gently curved outer surface, the antenna can be formed along the outer surface. Further, a deformable antenna may be formed using a thin and flexible film as a substrate.
- the outer shape of the conductor line 3 is a cross shape. That is, two rectangles having a short side L0 and a long side L1 are aligned with the center of gravity, and the shapes are overlapped with each other shifted by 90 degrees.
- the outermost end D is provided in the vicinity of one corner of the square in the center of the cross shape. This end D is in an open state. From this point D as the starting point, the outermost circumferential conductor line is formed with the line width w. It circulates along the cross-shaped outer shape and forms the next lap from the vicinity of the starting point D. The next turn is formed on the inner side with an interval d from the first turn. Thereafter, the lap is repeated in the same manner, and the center portion is filled as much as possible.
- the length L1 of the outermost cross shape and the length L2 of the innermost cross shape are selected based on the frequencies to be used.
- the outermost circumference length L1 is adjusted to a lower first frequency
- the innermost circumference length L2 is adjusted to a higher second frequency.
- a power feeding unit 4 is provided in the innermost peripheral circuit path. The power feeding unit is disposed near the center of the cross shape, but may not be completely centered, and may be slightly shifted in consideration of ease of attachment of the connector.
- a gap 5 is provided in the middle of the spiral conductor line.
- the gap 5 is selected based on the frequency of the radio wave used. That is, at the first frequency, the conductor lines before and after the gap are electromagnetically coupled, that is, at an interval that causes interference and does not cause interference at the second frequency.
- the first antenna portion is formed with a spiral outside the gap 5
- the second antenna portion is formed with a spiral inside the gap 5.
- the transmission circuit and communication circuit connected to this antenna are not particularly limited.
- the conventional circuit can be directly connected to the power feeding section.
- the antenna acts as a shared antenna for communication in linearly polarized waves of the first frequency and circularly polarized waves of the second frequency.
- This embodiment is an example of a shared antenna for communication using 1.5 GHz linearly polarized wave and 2.45 GHz circularly polarized wave.
- An epoxy resin was used as the substrate 2.
- the nominal characteristics of this epoxy resin are a thickness of 1 mm, a relative dielectric constant of 4.3, and a dielectric loss tangent of 0.018.
- a conductor line is formed with a 0.125 mm cut, and an SMA connector is provided. Connector terminals are connected near each end of the conductor line cut by the cut.
- a gap 5 is provided at one corner on the third turn from the outside.
- the width of the gap 4 is 0.5 mm.
- Transmission / reception by the antenna 1 is performed by connecting a transmission / reception circuit to the connector of the power supply unit 4.
- the supply part to an antenna is comprised by 1 port, the connection of a circuit is easy and the structure of a communication apparatus becomes easy.
- the characteristics were obtained by simulation and actual measurement.
- the simulation was conducted with Sonnet® Suites (trade name), a simulation program for electromagnetic characteristics.
- FIG. 4 shows the current distribution on the conductor line. The portion displayed in white indicates that the current is large. It can be seen that the current distribution differs between the first frequency (1.5 GHz) and the second frequency (2.45 GHz). At the first frequency, current is distributed throughout the conductor line 3. On the other hand, at the second frequency, a current distribution is seen only inside.
- FIG. 5 is a graph showing the return loss characteristics of the antenna.
- the vertical axis represents the return loss characteristic expressed in dB, and it is considered that the transmission / reception capability is high when the curve appears low on the graph.
- Both the simulation value and the actual measurement value have lower curves at 1.5 GHz and 2.45 GHz. Furthermore, there is a low numerical value portion at other frequencies, and it can be seen that this antenna can transmit and receive at two or more frequencies. Although the simulation values and the actual measurement values correspond well, there are some differences that are considered to be caused by how the connectors are attached.
- FIG. 6 is a graph showing the linear polarization characteristics of the antenna at the first frequency.
- the plane of the antenna xy plane
- the y axis 90 °.
- the horizontal axis in FIG. 6 is the elevation angle ⁇ .
- FIG. 7 is a graph showing the circular polarization characteristics of the antenna at the second frequency.
- FIG. 8 is a graph showing the axial ratio obtained from the circular polarization characteristics of the antenna at 2.45 GHz.
- the result is that the axial ratio is flat within a wide angle range. Therefore, it can be confirmed that good circular polarization characteristics are realized.
- FIG. 9 is a plan view showing the basic structure of the antenna of this embodiment.
- This embodiment is an example of a shared antenna for communication using a linearly polarized wave of 1.74 GHz and a circularly polarized wave of 1.58 GHz.
- 1.74 GHz linear polarization can be used for W-CDMA standard mobile phones, and 1.58 GHz circular polarization can be used for GPS.
- the substrate is an epoxy resin, and its characteristics are a thickness of 1 mm, a relative dielectric constant of 4.3, and a dielectric loss tangent of 0.018.
- a copper (conductivity 5.8 ⁇ 10 7 S / m) line having a thickness of 0.035 mm was formed on the substrate.
- FIG. 10 is a graph showing the return loss characteristic by simulation of the antenna of the second embodiment.
- the curves are lowered at 1.58 GHz and 1.74 GHz.
- FIG. 12 is a graph showing the linear polarization characteristics of the antenna at a frequency of 1.74 GHz.
- a large difference between the main polarization and the cross polarization is obtained, and it can be seen that a linear polarization characteristic is obtained at a frequency of 1.74 GHz.
- FIG. 13 shows the current distribution on the conductor line. It can be seen that the current distribution is different between the first frequency (1.58 GHz) and the second frequency (1.74 GHz). At the first frequency, current is distributed throughout the conductor line. On the other hand, at the second frequency, a current distribution is seen only inside.
- a third embodiment of the present invention will be described. This is an example when a thin film having a thickness of 0.5 mm is used as a substrate.
- the characteristics of this substrate are a relative dielectric constant of 4.3 and a dielectric loss tangent of 0.018.
- a line as shown in FIG. 1 was formed on this substrate.
- FIG. 14 is a graph showing the return loss characteristics by simulation of the antenna of the third embodiment.
- the characteristics of Example 1 are also shown by dotted lines.
- the data of Example 1 and Example 3 are almost the same, and it can be seen that they have substantially the same return loss characteristics.
- FIG. 15 is a perspective view showing the antenna of this embodiment.
- This is an example in which an antenna is formed on a film in the same manner as in Example 3 and is rounded and curved. That is, an antenna is formed by arranging a conductor line with the same dimensions as in Example 3 on a film having a thickness of 0.5 mm as in Example 3, and then rounding the antenna with a radius of curvature of 20 mm.
- FIG. 16 is a graph showing a return loss characteristic by simulation of the antenna of the fourth embodiment.
- the characteristics of Example 3 are also shown by dotted lines. It can be seen that the antenna of Example 4 has almost the same return loss characteristics as the antenna of Example 3 at the first frequency and the second frequency.
- the antenna of this embodiment can be flexibly deformed by being formed on a thin film, and even if it is deformed, the communication capability is not reduced.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Details Of Aerials (AREA)
Abstract
Description
2.基板
3.導体線路
4.給電点
5.ギャップ
Claims (5)
- 十字の形状を形成する周回をうずまき状に複数回有する第1のアンテナ部と、第1のアンテナ部に対し切断部を介して隣接される第2のアンテナ部と、中心部に設けられた給電部を有し、第1の周波数では切断部において電磁的な結合を生じ、第1の周波数と異なる第2の周波数では電磁的な結合を生じないものであるアンテナ。
- 第2のアンテナ部は十字の形状を形成する周回をうずまき状に複数回有し、第2のアンテナ部は第1のアンテナ部の外周に設けられ、切断部は第1のアンテナ部の外側端部と第2のアンテナ部の内側端部の間のギャップであり、第1のアンテナ部のうずまき状の周回路の中心部に設けられた給電部を有し、ギャップの間隔は第1の周波数では電磁的な結合を生じ、第1の周波数より高い第2の周波数では電磁的な結合を生じないものである請求項1に記載のアンテナ。
- 十字の形状を形成する周回路のうち第1の方向に沿った部分に流れる電流と、第1の方向に垂直な第2の方向に沿った部分に流れる電流が、第1の周波数では実質的に同位相であり、第2の周波数では実質的にπ/2の位相差を有するようになした請求項2に記載のアンテナ。
- 第2のアンテナ部は第1のアンテナ部の内側に設けられたダイポールアンテナであり、切断部において第1の周波数では電磁的な結合を生じ、切断部において第1の周波数より高い第2の周波数では電磁的な結合を生じないものである請求項1に記載のアンテナ。
- 第2のアンテナ部は第1のアンテナ部の外側に設けられたループアンテナであり、切断部において第1の周波数では電磁的な結合を生じ、切断部において第1の周波数より高い第2の周波数では電磁的な結合を生じないものである請求項1に記載のアンテナ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201180042254.4A CN103181027B (zh) | 2010-09-01 | 2011-08-26 | 天线 |
US13/820,336 US9281563B2 (en) | 2010-09-01 | 2011-08-26 | Antenna |
JP2012531830A JP5692544B2 (ja) | 2010-09-01 | 2011-08-26 | アンテナ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010196260 | 2010-09-01 | ||
JP2010-196260 | 2010-09-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012029639A1 true WO2012029639A1 (ja) | 2012-03-08 |
Family
ID=45772729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/069244 WO2012029639A1 (ja) | 2010-09-01 | 2011-08-26 | アンテナ |
Country Status (4)
Country | Link |
---|---|
US (1) | US9281563B2 (ja) |
JP (1) | JP5692544B2 (ja) |
CN (1) | CN103181027B (ja) |
WO (1) | WO2012029639A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014060515A (ja) * | 2012-09-14 | 2014-04-03 | Ehime Univ | 異なる周波数帯域の円偏波および直線偏波に共用できるループアンテナ |
CN111063981A (zh) * | 2019-12-10 | 2020-04-24 | 西安易朴通讯技术有限公司 | 天线组件和电子设备 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5956944B2 (ja) * | 2013-02-28 | 2016-07-27 | 日本電産サンキョー株式会社 | 非接触式情報処理装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11317612A (ja) * | 1998-04-30 | 1999-11-16 | Yokowo Co Ltd | 折り返しアンテナとアンテナ装置および無線機 |
JP2000269724A (ja) * | 1999-03-15 | 2000-09-29 | Sharp Corp | 多重ループアンテナ |
JP2004040596A (ja) * | 2002-07-05 | 2004-02-05 | Matsushita Electric Ind Co Ltd | 携帯無線機用多周波アンテナ |
JP2009010909A (ja) * | 2007-05-31 | 2009-01-15 | Ehime Univ | アンテナ |
JP2009207005A (ja) * | 2008-02-28 | 2009-09-10 | Ehime Univ | Hf帯用アンテナ |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5168230A (en) * | 1990-08-17 | 1992-12-01 | General Electric | Dual frequency nmr surface coil pair with interleaved lobe areas |
US5508710A (en) * | 1994-03-11 | 1996-04-16 | Wang-Tripp Corporation | Conformal multifunction shared-aperture antenna |
EP0954054A1 (en) | 1998-04-30 | 1999-11-03 | Kabushiki Kaisha Yokowo | Folded antenna |
US8174454B2 (en) * | 2007-05-07 | 2012-05-08 | Infineon Technologies Ag | Dual-band antenna |
WO2008146430A1 (ja) * | 2007-05-31 | 2008-12-04 | Ehime University | アンテナ |
CN101557030B (zh) * | 2008-04-10 | 2012-08-08 | 广达电脑股份有限公司 | 多频天线 |
-
2011
- 2011-08-26 JP JP2012531830A patent/JP5692544B2/ja not_active Expired - Fee Related
- 2011-08-26 WO PCT/JP2011/069244 patent/WO2012029639A1/ja active Application Filing
- 2011-08-26 CN CN201180042254.4A patent/CN103181027B/zh not_active Expired - Fee Related
- 2011-08-26 US US13/820,336 patent/US9281563B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11317612A (ja) * | 1998-04-30 | 1999-11-16 | Yokowo Co Ltd | 折り返しアンテナとアンテナ装置および無線機 |
JP2000269724A (ja) * | 1999-03-15 | 2000-09-29 | Sharp Corp | 多重ループアンテナ |
JP2004040596A (ja) * | 2002-07-05 | 2004-02-05 | Matsushita Electric Ind Co Ltd | 携帯無線機用多周波アンテナ |
JP2009010909A (ja) * | 2007-05-31 | 2009-01-15 | Ehime Univ | アンテナ |
JP2009207005A (ja) * | 2008-02-28 | 2009-09-10 | Ehime Univ | Hf帯用アンテナ |
Non-Patent Citations (2)
Title |
---|
KENJI KAKEMIZU ET AL.: "A Multi-Polarization and Multi-Frequency Antenna", IEICE TECHNICAL REPORT, vol. 110, no. 197, 2 September 2010 (2010-09-02), pages 19 - 22 * |
MATSUNAGA, M. ET AL.: "A multi-polarization and multi-frequency single layer planar antenna, Antennas and Propagation (EUCAP)", PROCEEDINGS OF THE 5TH EUROPEAN CONFERENCE ON, 15 April 2011 (2011-04-15), pages 623 - 626 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014060515A (ja) * | 2012-09-14 | 2014-04-03 | Ehime Univ | 異なる周波数帯域の円偏波および直線偏波に共用できるループアンテナ |
CN111063981A (zh) * | 2019-12-10 | 2020-04-24 | 西安易朴通讯技术有限公司 | 天线组件和电子设备 |
CN111063981B (zh) * | 2019-12-10 | 2021-06-01 | 西安易朴通讯技术有限公司 | 天线组件和电子设备 |
Also Published As
Publication number | Publication date |
---|---|
JP5692544B2 (ja) | 2015-04-01 |
JPWO2012029639A1 (ja) | 2013-10-28 |
CN103181027A (zh) | 2013-06-26 |
CN103181027B (zh) | 2014-11-26 |
US20130176187A1 (en) | 2013-07-11 |
US9281563B2 (en) | 2016-03-08 |
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