WO2006109663A1 - アンテナ装置 - Google Patents
アンテナ装置 Download PDFInfo
- Publication number
- WO2006109663A1 WO2006109663A1 PCT/JP2006/307314 JP2006307314W WO2006109663A1 WO 2006109663 A1 WO2006109663 A1 WO 2006109663A1 JP 2006307314 W JP2006307314 W JP 2006307314W WO 2006109663 A1 WO2006109663 A1 WO 2006109663A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- feed line
- antenna device
- antenna element
- antenna
- film
- Prior art date
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
- 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
- H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
- H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
- H01Q11/10—Logperiodic antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
- H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
- H01Q11/10—Logperiodic antennas
- H01Q11/105—Logperiodic antennas using a dielectric support
Definitions
- the present invention relates to an antenna device corresponding to an in-vehicle digital television.
- antenna devices used in in-vehicle televisions are being developed for broadband televisions so as to be compatible with digital televisions.
- an antenna device for example, an unbalanced antenna device that can easily achieve a wide band is used as disclosed in JP-A-2002-353714.
- part of the vehicle body that forms the ground also acts as part of the radiator, so the antenna characteristics are affected by changes in the mounting position. receive. Therefore, when attaching this unbalanced antenna device to a vehicle, a very precise work is required.
- the present invention provides an antenna device with improved mounting properties.
- the antenna device of the present invention includes a power feeding unit, a first antenna element, a second antenna element, and a film.
- the first antenna element includes a first feed line connected to the power supply unit and a plurality of first radiators connected to the first feed line and arranged in parallel in the extending direction of the first feed line.
- the second antenna element includes a second feed line connected to the feeding portion and a plurality of second radiators connected to the second feed line and arranged in parallel in the extending direction of the second feed line.
- the second antenna element is provided symmetrically with respect to the first antenna element.
- the film holds at least the first and second antenna elements. With this configuration, it is possible to improve the mountability of the antenna device used in the in-vehicle digital television.
- FIG. 1 is a schematic plan view of an antenna device according to an embodiment of the present invention.
- FIG. 2 is a cross-sectional view of another antenna device according to an embodiment of the present invention.
- FIG. 3 is a schematic plan view of the antenna device shown in FIG. Explanation of symbols
- FIG. 1 is a schematic plan view showing a configuration of an antenna device according to an embodiment of the present invention.
- This antenna device is compatible with in-vehicle digital televisions and is used by shelling it onto the windshield of an automobile. Digital television transmits and receives signals in a wide frequency band from 470 MHz to 770 MHz. For this reason, it is important for the antenna device used for this purpose to exhibit high sensitivity in a very wide frequency band.
- This antenna device includes a power feeding unit 1, a first antenna element (hereinafter referred to as element) 2, a second antenna element (hereinafter referred to as element) 3, and a film 4.
- element a first antenna element
- element a second antenna element
- film 4 a film 4.
- the elements 2 and 3 are connected to the power feeding unit 1 and integrated with the film 4. That is, the film 4 holds at least the elements 2 and 3.
- the element 2 includes a first feed line (hereinafter referred to as a line) 5 linearly extending from the power feeding unit 1, and a first radiator (hereinafter referred to as a radiator) 7 arranged in parallel to the direction orthogonal to the line 5. It has.
- the element 3 includes a second feed line (hereinafter referred to as a line) 6 that extends linearly from the power feeding unit 1, and a second radiator (hereinafter referred to as a radiator) 8 that is arranged in a direction orthogonal to the line 6.
- a balanced antenna is configured.
- the power feeding unit 1, the elements 2 and 3 are composed of, for example, a conductor pattern in which a silver paste is printed on the film 4 or a copper wire.
- the film 4 is made of polyester, for example, and the power feeding part 1 Element 2 and 3 are sandwiched. Furthermore, a clear coating may be applied to the surface of the film 4.
- the film 4 holds the power feeding part 1 and the elements 2 and 3 and functions as a protective material for them. Therefore, it is preferable that the film 4 covers both the power feeding unit 1 and the elements 2 and 3 on both sides, but the film 4 may be composed of a single sheet as long as a film is provided and these are protected.
- the power feeding unit 1 is composed of, for example, a metal terminal, it is not necessary to hold the power feeding unit 1 with the film 4!
- the radiators 7 and 8 are each composed of a plurality of lines 5 and 6 so that their lengths are different in order from the feeding part 1 side to the tip side. In other words, the lengths of the radiators 7 and 8 are longer or shorter in the order in which they are moved away from the power feeding part 1 of the lines 5 and 6. In this configuration, the resonance frequencies of the radiators 7 and 8 are different. By connecting a plurality of radiators 7 and 8 having different resonant frequencies to lines 5 and 6 in this way, the antenna characteristics of the elements 2 and 3 become wideband. As a result, this antenna device corresponds to the frequency band of digital television.
- FIG. 2 is a cross-sectional view showing a configuration of another antenna device according to the present embodiment
- FIG. 3 is a schematic plan view thereof.
- the first antenna element (hereinafter element) 12 is on the first surface 41 side of the film 4A
- the second antenna element (hereinafter element) 13 is on the second surface 42 facing the first surface 41.
- Each side is covered with films 4B and 4C from both sides.
- the element 12 is provided with a first radiator (hereinafter referred to as a radiator) 17 arranged in parallel in a direction orthogonal to the line 5 and a line 5 extending linearly from the power feeding unit 1.
- the element 13 is also provided with a line 6 linearly extending from the power feeding unit 1 and a second radiator (hereinafter referred to as a radiator) 18 arranged in parallel to the line 6 in a direction orthogonal to the line 6.
- radiators 17 and 18 are provided symmetrically, elements 12 and 13 are arranged symmetrically, and the antenna device is configured as a balanced type.
- Film 12B is formed on film 4B
- element 13 is formed on film 4A
- the surface on which element 12 is formed and the surface on which element 13 is formed do not overlap with films 4B, 4A, 4C. May be laminated in order to produce an antenna device.
- each of the radiators 17 is preferably disposed between the radiators 18. This increases the directivity of the antenna device.
- This antenna device is used by being attached to a windshield of an automobile. In this state, the antenna apparatus receives both a signal directly received from outside the vehicle and a signal received from inside the vehicle and reflected by the inside of the vehicle. In this case, a time lag is generated in these signals, so that an error component is increased in a tuner arranged in the subsequent stage. For this reason, by setting the antenna device to have directivity and selectively receiving one signal such as receiving only a signal of an external vehicle force, the performance as the vehicle-mounted antenna device is enhanced.
- the antenna device according to the present invention can provide an antenna device capable of receiving a digital TV signal that is easy to mount and does not depend on the body shape of the vehicle to be mounted. Useful for.
Landscapes
- Details Of Aerials (AREA)
- Support Of Aerials (AREA)
- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/547,134 US20090015500A1 (en) | 2005-04-07 | 2006-04-06 | Antenna Device |
JP2006524161A JPWO2006109663A1 (ja) | 2005-04-07 | 2006-04-06 | アンテナ装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005110614 | 2005-04-07 | ||
JP2005-110614 | 2005-04-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006109663A1 true WO2006109663A1 (ja) | 2006-10-19 |
Family
ID=37086939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/307314 WO2006109663A1 (ja) | 2005-04-07 | 2006-04-06 | アンテナ装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20090015500A1 (ja) |
JP (1) | JPWO2006109663A1 (ja) |
CN (1) | CN1957503A (ja) |
WO (1) | WO2006109663A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2327995A1 (es) * | 2007-01-10 | 2009-11-05 | Universidad Miguel Hernandez | Antena impresa para aplicaciones multibanda. |
WO2013062167A1 (ko) * | 2011-10-27 | 2013-05-02 | 브로콜리 주식회사 | 증강안테나 |
WO2013065893A1 (ko) * | 2011-11-04 | 2013-05-10 | 브로콜리 주식회사 | 슬롯형 증강안테나 |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104733837A (zh) * | 2015-03-20 | 2015-06-24 | 福建星网锐捷网络有限公司 | 一种天线和天线系统 |
US11749893B2 (en) | 2016-08-29 | 2023-09-05 | Silicon Laboratories Inc. | Apparatus for antenna impedance-matching and associated methods |
US11764749B2 (en) | 2016-08-29 | 2023-09-19 | Silicon Laboratories Inc. | Apparatus with partitioned radio frequency antenna and matching network and associated methods |
US11769949B2 (en) | 2016-08-29 | 2023-09-26 | Silicon Laboratories Inc. | Apparatus with partitioned radio frequency antenna and matching network and associated methods |
US11894622B2 (en) | 2016-08-29 | 2024-02-06 | Silicon Laboratories Inc. | Antenna structure with double-slotted loop and associated methods |
US11764473B2 (en) | 2016-08-29 | 2023-09-19 | Silicon Laboratories Inc. | Apparatus with partitioned radio frequency antenna and matching network and associated methods |
US11894621B2 (en) | 2017-12-18 | 2024-02-06 | Silicon Laboratories Inc. | Radio-frequency apparatus with multi-band balun with improved performance and associated methods |
US11750167B2 (en) | 2017-11-27 | 2023-09-05 | Silicon Laboratories Inc. | Apparatus for radio-frequency matching networks and associated methods |
US11894826B2 (en) | 2017-12-18 | 2024-02-06 | Silicon Laboratories Inc. | Radio-frequency apparatus with multi-band balun and associated methods |
US11916514B2 (en) | 2017-11-27 | 2024-02-27 | Silicon Laboratories Inc. | Radio-frequency apparatus with multi-band wideband balun and associated methods |
CN109742528B (zh) * | 2019-01-03 | 2020-07-03 | 南京杰思微电子技术有限公司 | 一种宽带rfid标签印制天线结构 |
CN114665260B (zh) * | 2020-12-22 | 2023-03-28 | 华为技术有限公司 | 一种天线和通信设备 |
US11862872B2 (en) | 2021-09-30 | 2024-01-02 | Silicon Laboratories Inc. | Apparatus for antenna optimization and associated methods |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02260803A (ja) * | 1989-03-31 | 1990-10-23 | Japan Radio Co Ltd | ログペリオディック・ダイポールアンテナ |
JPH088637A (ja) * | 1994-06-22 | 1996-01-12 | Toyota Motor Corp | 車載複合アンテナ |
JPH11168323A (ja) * | 1997-12-04 | 1999-06-22 | Mitsubishi Electric Corp | 多周波共用アンテナ装置及びこの多周波共用アンテナを用いた多周波共用アレーアンテナ装置 |
JP2001211020A (ja) * | 2000-01-26 | 2001-08-03 | Asahi Glass Co Ltd | 車載用対数周期ダイポールアンテナ |
JP2003124734A (ja) * | 2001-10-18 | 2003-04-25 | Mitsubishi Electric Corp | 対数周期アンテナ装置及びアレーアンテナ装置 |
JP2004242277A (ja) * | 2003-01-17 | 2004-08-26 | Fujitsu Ten Ltd | アンテナ |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6094176A (en) * | 1998-11-24 | 2000-07-25 | Northrop Grumman Corporation | Very compact and broadband planar log-periodic dipole array antenna |
US7129904B2 (en) * | 2005-03-23 | 2006-10-31 | Uspec Technology Co., Ltd. | Shaped dipole antenna |
-
2006
- 2006-04-06 JP JP2006524161A patent/JPWO2006109663A1/ja active Pending
- 2006-04-06 US US11/547,134 patent/US20090015500A1/en not_active Abandoned
- 2006-04-06 CN CNA2006800002763A patent/CN1957503A/zh active Pending
- 2006-04-06 WO PCT/JP2006/307314 patent/WO2006109663A1/ja active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02260803A (ja) * | 1989-03-31 | 1990-10-23 | Japan Radio Co Ltd | ログペリオディック・ダイポールアンテナ |
JPH088637A (ja) * | 1994-06-22 | 1996-01-12 | Toyota Motor Corp | 車載複合アンテナ |
JPH11168323A (ja) * | 1997-12-04 | 1999-06-22 | Mitsubishi Electric Corp | 多周波共用アンテナ装置及びこの多周波共用アンテナを用いた多周波共用アレーアンテナ装置 |
JP2001211020A (ja) * | 2000-01-26 | 2001-08-03 | Asahi Glass Co Ltd | 車載用対数周期ダイポールアンテナ |
JP2003124734A (ja) * | 2001-10-18 | 2003-04-25 | Mitsubishi Electric Corp | 対数周期アンテナ装置及びアレーアンテナ装置 |
JP2004242277A (ja) * | 2003-01-17 | 2004-08-26 | Fujitsu Ten Ltd | アンテナ |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2327995A1 (es) * | 2007-01-10 | 2009-11-05 | Universidad Miguel Hernandez | Antena impresa para aplicaciones multibanda. |
WO2013062167A1 (ko) * | 2011-10-27 | 2013-05-02 | 브로콜리 주식회사 | 증강안테나 |
KR101311988B1 (ko) * | 2011-10-27 | 2013-09-27 | 브로콜리 주식회사 | 증강안테나 |
WO2013065893A1 (ko) * | 2011-11-04 | 2013-05-10 | 브로콜리 주식회사 | 슬롯형 증강안테나 |
US9413070B2 (en) | 2011-11-04 | 2016-08-09 | Brocoli Co., Ltd. | Slot-type augmented antenna |
Also Published As
Publication number | Publication date |
---|---|
US20090015500A1 (en) | 2009-01-15 |
CN1957503A (zh) | 2007-05-02 |
JPWO2006109663A1 (ja) | 2008-11-13 |
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