JP2012028869A - アンテナ装置及び通信装置 - Google Patents
アンテナ装置及び通信装置 Download PDFInfo
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- 238000004891 communication Methods 0.000 title claims description 14
- 239000004020 conductor Substances 0.000 claims abstract description 90
- 238000004804 winding Methods 0.000 claims description 6
- 230000010287 polarization Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 25
- 230000005855 radiation Effects 0.000 description 18
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
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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
- H01Q1/2216—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 interrogator/reader equipment
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
-
- 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
- H01Q11/08—Helical antennas
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- 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
- H01Q19/28—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 a secondary device in the form of two or more substantially straight conductive elements
-
- 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
Abstract
【解決手段】アンテナ装置110は、所定の軸Sを中心として線状導体を第1の間隔Pで螺旋状に巻回することにより形成され、軸Sの方向に円偏波の電波を放射するヘリカルアンテナ111を備えた。また、アンテナ装置110は、ヘリカルアンテナ111によって電波が放射される軸Sの方向に沿って、ヘリカルアンテナ111に対して第1の間隔Pと略同一となる第2の間隔Xを空けて配置された導波器112を備えた。
【選択図】図3
Description
例えば、クロスダイポールアンテナ等の他の円偏波アンテナにもヘリカルアンテナ111と同様にして本願発明を適用することができる。また、円偏波アンテナとしてヘリカルアンテナを用いる場合には、2線式や単線式のヘリカルアンテナにも4線式のヘリカルアンテナ111と同様にして本願発明を適用することができる。
前記アンテナによって電波が放射される前記軸の方向に沿って、前記アンテナに対して前記第1の間隔と略同一となる第2の間隔を空けて配置された導波器と
を備えたことを特徴とするアンテナ装置。
前記アンテナと前記アンテナに最も近接する前記導体素子との間隔、及び互いに隣接する前記導体素子の間隔が、略同一となる前記第2の間隔に設定されていることを特徴とする付記1に記載のアンテナ装置。
前記第1の間隔及び前記第2の間隔は、0.11λ以上0.15λ以下に設定されていることを特徴とする付記1又は2に記載のアンテナ装置。
所定の軸を中心として線状導体を第1の間隔で螺旋状に巻回することにより形成され、前記軸の方向に円偏波の電波を放射するアンテナと、
前記アンテナによって電波が放射される前記軸の方向に沿って、前記アンテナに対して前記第1の間隔と略同一となる第2の間隔を空けて配置され、前記タグに対して指向性を合わせた電波を放射する導波器と
を備えたことを特徴とする通信装置。
110 アンテナ装置
111 ヘリカルアンテナ
111a〜111d 線状導体
112 導波器
112a 導体素子
113 誘電体
114 給電点
115 給電用導体
116 放射用導体
Claims (3)
- 所定の軸を中心として線状導体を螺旋状に巻回され、前記軸方向で隣接する線状導体間を第1の間隔で形成され、前記軸の方向に円偏波の電波を放射するアンテナと、
前記アンテナによって電波が放射される前記軸の方向に沿って、前記アンテナに対して前記第1の間隔と略同一となる第2の間隔を空けて配置された導波器と
を備えたことを特徴とするアンテナ装置。 - 前記導波器は、前記アンテナによって電波が放射される前記軸の方向に沿って配置された複数の導体素子を含み、
前記アンテナと前記アンテナに最も近接する前記導体素子との間隔、及び互いに隣接する前記導体素子の間隔が、略同一となる前記第2の間隔に設定されていることを特徴とする請求項1に記載のアンテナ装置。 - タグへ電波を放射して、前記タグと通信を行う通信装置であって、
所定の軸を中心として線状導体を第1の間隔で螺旋状に巻回することにより形成され、前記軸の方向に円偏波の電波を放射するアンテナと、
前記アンテナによって電波が放射される前記軸の方向に沿って、前記アンテナに対して前記第1の間隔と略同一となる第2の間隔を空けて配置され、前記タグに対して指向性を合わせた電波を放射する導波器と
を備えたことを特徴とする通信装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010163215A JP2012028869A (ja) | 2010-07-20 | 2010-07-20 | アンテナ装置及び通信装置 |
TW100113160A TW201205954A (en) | 2010-07-20 | 2011-04-15 | Antenna device and communication device |
US13/087,524 US20120019427A1 (en) | 2010-07-20 | 2011-04-15 | Antenna device and communication device |
EP11163849A EP2410610A1 (en) | 2010-07-20 | 2011-04-27 | Antenna device and communication device |
KR1020110040920A KR101195363B1 (ko) | 2010-07-20 | 2011-04-29 | 안테나 장치 및 통신 장치 |
Applications Claiming Priority (1)
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---|---|---|---|
JP2010163215A JP2012028869A (ja) | 2010-07-20 | 2010-07-20 | アンテナ装置及び通信装置 |
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JP2012028869A true JP2012028869A (ja) | 2012-02-09 |
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JP2010163215A Pending JP2012028869A (ja) | 2010-07-20 | 2010-07-20 | アンテナ装置及び通信装置 |
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---|---|
US (1) | US20120019427A1 (ja) |
EP (1) | EP2410610A1 (ja) |
JP (1) | JP2012028869A (ja) |
KR (1) | KR101195363B1 (ja) |
TW (1) | TW201205954A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014078139A (ja) * | 2012-10-10 | 2014-05-01 | Techno Medica Co Ltd | 試験管位置検出機能付きrfタグリーダー |
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Also Published As
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TW201205954A (en) | 2012-02-01 |
EP2410610A1 (en) | 2012-01-25 |
KR101195363B1 (ko) | 2012-10-29 |
KR20120010107A (ko) | 2012-02-02 |
US20120019427A1 (en) | 2012-01-26 |
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