JP2009207005A - Hf帯用アンテナ - Google Patents
Hf帯用アンテナ Download PDFInfo
- Publication number
- JP2009207005A JP2009207005A JP2008048772A JP2008048772A JP2009207005A JP 2009207005 A JP2009207005 A JP 2009207005A JP 2008048772 A JP2008048772 A JP 2008048772A JP 2008048772 A JP2008048772 A JP 2008048772A JP 2009207005 A JP2009207005 A JP 2009207005A
- Authority
- JP
- Japan
- Prior art keywords
- spiral
- antenna
- loop
- band
- layer
- 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.)
- Granted
Links
Images
Abstract
【解決手段】上述の課題を解決するため、この発明のHF帯用アンテナ1は、閉曲線をなす導線4より形成されるループ部2と、一端が開放された渦巻き状の導線5より形成される渦巻き3を有し、導線4,5の幅w0および導線同士の間隔w1が使用する電波の波長の10-4倍未満であるものとし、使用周波数において挿入損失が小さいので、電波による通信が可能となる。
【選択図】図1
Description
また、特許文献1には直行させて配置した2本のダイポールアンテナを切り替え
2.ループ部
3.渦巻き部
4,5 導線
Claims (2)
- 閉曲線をなす導線より形成されるループ部と、一端が開放された渦巻き状の導線より形成される渦巻き部を有し、導線の幅w0および導線同士の間隔w1が使用する電波の波長の10-4倍未満であるHF帯用アンテナ。
- 渦巻き部の巻き数が30回以上であり、使用周波数が10MHz以上100MHz以下である請求項1から請求項3のいずれかに記載のHF帯用アンテナ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008048772A JP5004238B2 (ja) | 2008-02-28 | 2008-02-28 | Hf帯のアンテナ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008048772A JP5004238B2 (ja) | 2008-02-28 | 2008-02-28 | Hf帯のアンテナ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009207005A true JP2009207005A (ja) | 2009-09-10 |
JP5004238B2 JP5004238B2 (ja) | 2012-08-22 |
Family
ID=41148805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008048772A Expired - Fee Related JP5004238B2 (ja) | 2008-02-28 | 2008-02-28 | Hf帯のアンテナ |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5004238B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012029639A1 (ja) * | 2010-09-01 | 2012-03-08 | 国立大学法人愛媛大学 | アンテナ |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08293724A (ja) * | 1995-04-22 | 1996-11-05 | Sony Chem Corp | 合成ループアンテナ |
WO2006125916A2 (fr) * | 2005-05-25 | 2006-11-30 | Oberthur Card Systems Sa | Entite electronique a antenne magnetique |
-
2008
- 2008-02-28 JP JP2008048772A patent/JP5004238B2/ja not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08293724A (ja) * | 1995-04-22 | 1996-11-05 | Sony Chem Corp | 合成ループアンテナ |
WO2006125916A2 (fr) * | 2005-05-25 | 2006-11-30 | Oberthur Card Systems Sa | Entite electronique a antenne magnetique |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012029639A1 (ja) * | 2010-09-01 | 2012-03-08 | 国立大学法人愛媛大学 | アンテナ |
US9281563B2 (en) | 2010-09-01 | 2016-03-08 | National University Corporation Ehime University | Antenna |
Also Published As
Publication number | Publication date |
---|---|
JP5004238B2 (ja) | 2012-08-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9997834B1 (en) | Antenna device and communication terminal apparatus | |
JP5592895B2 (ja) | Rfidアンテナ回路 | |
US8668151B2 (en) | Wireless IC device | |
JP5578291B2 (ja) | アンテナ装置及び通信端末機器 | |
CN1921225B (zh) | 复合天线 | |
US7580000B2 (en) | Folding dipole antenna and tag using the same | |
JP5660254B2 (ja) | アンテナ装置及び無線通信装置 | |
JP5282898B2 (ja) | アンテナ装置 | |
JP2006309476A (ja) | 信号処理回路、及びこれを用いた非接触icカード並びにタグ | |
US8400362B2 (en) | Radio communication apparatus and method for making radio communication apparatus | |
GB2495418A (en) | Antenna device and communications terminal device | |
JP5094630B2 (ja) | Icタグ | |
TW201008031A (en) | Loop antenna device with large opening area | |
JP5928768B2 (ja) | 非接触通信装置 | |
JP2006180043A (ja) | 電子タグシステム | |
US11100382B2 (en) | Card-type wireless communication device | |
JP5004238B2 (ja) | Hf帯のアンテナ | |
JP2011095844A (ja) | 非接触電子装置 | |
JP4359648B1 (ja) | 非接触給電型ノーマルモードヘリカルアンテナ | |
US8570230B2 (en) | Antenna | |
JP4514814B2 (ja) | アンテナ装置 | |
EP3147996A1 (en) | Multi-frequency antenna module | |
JP2003069336A (ja) | アンテナコイル及び非接触icカ−ド用リードライトシステム | |
JP2022133597A (ja) | アンテナ装置及びこれを備えるアンテナモジュール | |
TWI724172B (zh) | 天線裝置及使用其之ic標籤 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20110113 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20111122 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20120110 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20120206 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20120224 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20120420 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20120514 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20120517 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20150601 Year of fee payment: 3 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5004238 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |