JP2007266999A - 平面アンテナ - Google Patents
平面アンテナ Download PDFInfo
- Publication number
- JP2007266999A JP2007266999A JP2006089168A JP2006089168A JP2007266999A JP 2007266999 A JP2007266999 A JP 2007266999A JP 2006089168 A JP2006089168 A JP 2006089168A JP 2006089168 A JP2006089168 A JP 2006089168A JP 2007266999 A JP2007266999 A JP 2007266999A
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- radiating element
- planar antenna
- impedance
- feeding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
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- 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
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- 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
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
- H01Q1/2225—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
- H01Q1/3233—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
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- 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
- 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
- H01Q7/04—Screened antennas
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- 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
- H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
- H01Q9/285—Planar dipole
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Details Of Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
【選択図】 図3
Description
その結果、z軸方向には、上記のExフィールドとEyフィールドとが合成された電界フィールド、つまり、円偏波〔この場合は、右旋回円偏波(RHCP:Right-Hand Circularly Polarized)〕フィールドが発生する。換言すれば、上記平面アンテナは、無給電ループ状アンテナ素子としてのループアンテナ2,3が、線状アンテナ素子としてのダイポールアンテナ1の発生しうる偏波(水平偏波)と交差する交差偏波(垂直偏波)を発生すべく配置されており、さらに、ループアンテナ2,3は、それぞれ、当該垂直偏波を発生すべくダイポールアンテナ1と交差する方向に延在する線状部分を長方形の長辺として有しているのである。
2、3 ループアンテナ
4 インピーダンス変換部
5 線路
6 三角形状パターン
7 基板
8 同軸線路用接続端
9,91,92 スタブ
10 カットアウェイバラン
11 第1の放射素子
12 第2の放射素子
Claims (7)
- 給電部から両側に広がる2つの放射素子からなるダイポールアンテナと、不平衡平衡変換部とから構成される平面アンテナにおいて、
基板の一方の面に、第1の放射素子と該放射素子に接続された第1の給電用パターンと該第1の放射素子に隣接する第1の無給電ループ状放射素子とを設け、
基板の他方の面に、第2の放射素子と該放射素子に接続された第2の給電用パターンと該第2の放射素子に隣接する第2の無給電ループ状放射素子とを設けたことを特徴とする平面アンテナ。 - 前記平面アンテナは、さらに前記放射素子の一部にインピーダンス調整部を設けたことを特徴とする請求項1記載の平面アンテナ。
- 前記平面アンテナの前記給電パターンのパターン幅を一部変えたインピーダンス変換部を設けたことを特徴とする請求項1記載の平面アンテナ。
- 前記平面アンテナの前記給電パターンは、給電側を底辺とし、前記放射素子の給電点を頂点とする三角形状とすることを特徴とする請求項1記載の平面アンテナ。
- 前記平面アンテナの前記給電パターンは、給電側を底辺とし、前記放射素子の給電点を頂点とする二等辺三角形の形状とすることを特徴とする請求項1記載の平面アンテナ。
- 前記第1の無給電ループ状放射素子は、さらに隣接する第1の放射素子との間隔を調整する調節部を設け、
前記第2の無給電ループ状放射素子は、さらに隣接する第2の放射素子との間隔を調整する調節部を設けたことを特徴とする請求項1記載の平面アンテナ。 - 前記不平衡平衡変換部は一部にインピーダンス調整部を設けた前記第1の給電パターンと、パターン幅を一部変えたインピーダンス変換部を設けた前記第2の給電パターンとから構成されることを特徴とする請求項1記載の平面アンテナ。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006089168A JP4735368B2 (ja) | 2006-03-28 | 2006-03-28 | 平面アンテナ |
TW095140170A TWI326939B (en) | 2006-03-28 | 2006-10-31 | Plane antenna |
US11/589,914 US7633455B2 (en) | 2006-03-28 | 2006-10-31 | Plane antenna |
DE602006006898T DE602006006898D1 (de) | 2006-03-28 | 2006-11-09 | Ebene Antenne |
EP06123745A EP1841005B1 (en) | 2006-03-28 | 2006-11-09 | Plane antenna |
KR1020060117328A KR100833432B1 (ko) | 2006-03-28 | 2006-11-27 | 평면 안테나 |
CN2006101629853A CN101047283B (zh) | 2006-03-28 | 2006-11-30 | 平面天线 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006089168A JP4735368B2 (ja) | 2006-03-28 | 2006-03-28 | 平面アンテナ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007266999A true JP2007266999A (ja) | 2007-10-11 |
JP4735368B2 JP4735368B2 (ja) | 2011-07-27 |
Family
ID=38180122
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006089168A Expired - Fee Related JP4735368B2 (ja) | 2006-03-28 | 2006-03-28 | 平面アンテナ |
Country Status (7)
Country | Link |
---|---|
US (1) | US7633455B2 (ja) |
EP (1) | EP1841005B1 (ja) |
JP (1) | JP4735368B2 (ja) |
KR (1) | KR100833432B1 (ja) |
CN (1) | CN101047283B (ja) |
DE (1) | DE602006006898D1 (ja) |
TW (1) | TWI326939B (ja) |
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WO2009060735A1 (ja) * | 2007-11-07 | 2009-05-14 | Fujitsu Ten Limited | 円偏波受信用アンテナ |
WO2009110381A1 (ja) * | 2008-03-03 | 2009-09-11 | 株式会社村田製作所 | 無線icデバイス及び無線通信システム |
US7967216B2 (en) | 2008-05-22 | 2011-06-28 | Murata Manufacturing Co., Ltd. | Wireless IC device |
US8011589B2 (en) | 2008-06-25 | 2011-09-06 | Murata Manufacturing Co., Ltd. | Wireless IC device and manufacturing method thereof |
US8177138B2 (en) | 2008-10-29 | 2012-05-15 | Murata Manufacturing Co., Ltd. | Radio IC device |
US8191791B2 (en) | 2007-07-17 | 2012-06-05 | Murata Manufacturing Co., Ltd. | Wireless IC device and electronic apparatus |
US8228765B2 (en) | 2006-06-30 | 2012-07-24 | Murata Manufacturing Co., Ltd. | Optical disc |
US8299929B2 (en) | 2006-09-26 | 2012-10-30 | Murata Manufacturing Co., Ltd. | Inductively coupled module and item with inductively coupled module |
US8336786B2 (en) | 2010-03-12 | 2012-12-25 | Murata Manufacturing Co., Ltd. | Wireless communication device and metal article |
US8342416B2 (en) | 2009-01-09 | 2013-01-01 | Murata Manufacturing Co., Ltd. | Wireless IC device, wireless IC module and method of manufacturing wireless IC module |
US8360330B2 (en) | 2007-12-26 | 2013-01-29 | Murata Manufacturing Co., Ltd. | Antenna device and radio frequency IC device |
US8360325B2 (en) | 2008-04-14 | 2013-01-29 | Murata Manufacturing Co., Ltd. | Wireless IC device, electronic apparatus, and method for adjusting resonant frequency of wireless IC device |
US8381997B2 (en) | 2009-06-03 | 2013-02-26 | Murata Manufacturing Co., Ltd. | Radio frequency IC device and method of manufacturing the same |
US8400365B2 (en) | 2009-11-20 | 2013-03-19 | Murata Manufacturing Co., Ltd. | Antenna device and mobile communication terminal |
US8400307B2 (en) | 2007-07-18 | 2013-03-19 | Murata Manufacturing Co., Ltd. | Radio frequency IC device and electronic apparatus |
US8418928B2 (en) | 2009-04-14 | 2013-04-16 | Murata Manufacturing Co., Ltd. | Wireless IC device component and wireless IC device |
US8424762B2 (en) | 2007-04-14 | 2013-04-23 | Murata Manufacturing Co., Ltd. | Wireless IC device and component for wireless IC device |
US8424769B2 (en) | 2010-07-08 | 2013-04-23 | Murata Manufacturing Co., Ltd. | Antenna and RFID device |
US8531346B2 (en) | 2007-04-26 | 2013-09-10 | Murata Manufacturing Co., Ltd. | Wireless IC device |
US8546927B2 (en) | 2010-09-03 | 2013-10-01 | Murata Manufacturing Co., Ltd. | RFIC chip mounting structure |
US8552870B2 (en) | 2007-07-09 | 2013-10-08 | Murata Manufacturing Co., Ltd. | Wireless IC device |
US8583043B2 (en) | 2009-01-16 | 2013-11-12 | Murata Manufacturing Co., Ltd. | High-frequency device and wireless IC device |
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US8596545B2 (en) | 2008-05-28 | 2013-12-03 | Murata Manufacturing Co., Ltd. | Component of wireless IC device and wireless IC device |
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Also Published As
Publication number | Publication date |
---|---|
JP4735368B2 (ja) | 2011-07-27 |
TW200737590A (en) | 2007-10-01 |
TWI326939B (en) | 2010-07-01 |
US20070229384A1 (en) | 2007-10-04 |
US7633455B2 (en) | 2009-12-15 |
CN101047283A (zh) | 2007-10-03 |
EP1841005A1 (en) | 2007-10-03 |
CN101047283B (zh) | 2012-06-27 |
KR100833432B1 (ko) | 2008-05-29 |
EP1841005B1 (en) | 2009-05-20 |
DE602006006898D1 (de) | 2009-07-02 |
KR20070097289A (ko) | 2007-10-04 |
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