WO2009041497A1 - Loop antenna - Google Patents
Loop antenna Download PDFInfo
- Publication number
- WO2009041497A1 WO2009041497A1 PCT/JP2008/067294 JP2008067294W WO2009041497A1 WO 2009041497 A1 WO2009041497 A1 WO 2009041497A1 JP 2008067294 W JP2008067294 W JP 2008067294W WO 2009041497 A1 WO2009041497 A1 WO 2009041497A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- loop
- loop element
- loop antenna
- supply unit
- electrically conductive
- 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
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/273—Adaptation for carrying or wearing by persons or animals
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
-
- 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
Landscapes
- Details Of Aerials (AREA)
Abstract
[PROBLEMS TO BE SOLVED] It is an object to provide a loop antenna that has an affinity with a human body while suppressiing loss due to the human body. [MEANS FOR SOLVING THE PROBLEMS] A loop antenna is provided with a loop element of an electrically conductive band that is cylindrically formed and a power supply unit. Further, the loop element has a slit made along a cylindrical height direction, the electrically conductive band is made in the form of a loop, and the power supply unit receives electric power from edge portions to hold the slit in the loop element and supplies the electric power between them. A cylindrical space in the loop element is available as a holder, and the loop element is attached to a sleeve of clothes, for example, thereby carrying out transmission and reception.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007-255423 | 2007-09-28 | ||
JP2007255423 | 2007-09-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009041497A1 true WO2009041497A1 (en) | 2009-04-02 |
Family
ID=40511380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/067294 WO2009041497A1 (en) | 2007-09-28 | 2008-09-25 | Loop antenna |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2009041497A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2455910A (en) * | 2007-12-19 | 2009-07-01 | Mark Rhodes | A wearable item incorporating at least one loop antenna |
WO2019142445A1 (en) * | 2018-01-22 | 2019-07-25 | 京セラ株式会社 | Wireless communication device and communication system |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0393322A (en) * | 1989-09-06 | 1991-04-18 | Iwatsu Electric Co Ltd | Diversity antenna |
JP2001124861A (en) * | 1999-10-29 | 2001-05-11 | Nec Corp | Occupant detection system and antenna electrode |
JP2001344580A (en) * | 2000-05-31 | 2001-12-14 | Toppan Forms Co Ltd | Non-contact type data transmitting and receiving body and manufacturing method of the same |
JP2003258539A (en) * | 2002-03-06 | 2003-09-12 | Communication Research Laboratory | Microstrip antenna |
JP2006053833A (en) * | 2004-08-13 | 2006-02-23 | Fujitsu Ltd | Rfid tag and its manufacturing method |
JP2006311415A (en) * | 2005-05-02 | 2006-11-09 | Mitsubishi Motors Corp | Rfid tag |
JP2007142796A (en) * | 2005-11-18 | 2007-06-07 | Kyocera Corp | Loop antenna and communication apparatus |
JP2007188252A (en) * | 2006-01-12 | 2007-07-26 | Lintec Corp | Antenna circuit, ic inlet, multi-tag, and method for manufacturing multi-tag |
-
2008
- 2008-09-25 WO PCT/JP2008/067294 patent/WO2009041497A1/en active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0393322A (en) * | 1989-09-06 | 1991-04-18 | Iwatsu Electric Co Ltd | Diversity antenna |
JP2001124861A (en) * | 1999-10-29 | 2001-05-11 | Nec Corp | Occupant detection system and antenna electrode |
JP2001344580A (en) * | 2000-05-31 | 2001-12-14 | Toppan Forms Co Ltd | Non-contact type data transmitting and receiving body and manufacturing method of the same |
JP2003258539A (en) * | 2002-03-06 | 2003-09-12 | Communication Research Laboratory | Microstrip antenna |
JP2006053833A (en) * | 2004-08-13 | 2006-02-23 | Fujitsu Ltd | Rfid tag and its manufacturing method |
JP2006311415A (en) * | 2005-05-02 | 2006-11-09 | Mitsubishi Motors Corp | Rfid tag |
JP2007142796A (en) * | 2005-11-18 | 2007-06-07 | Kyocera Corp | Loop antenna and communication apparatus |
JP2007188252A (en) * | 2006-01-12 | 2007-07-26 | Lintec Corp | Antenna circuit, ic inlet, multi-tag, and method for manufacturing multi-tag |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2455910A (en) * | 2007-12-19 | 2009-07-01 | Mark Rhodes | A wearable item incorporating at least one loop antenna |
GB2455910B (en) * | 2007-12-19 | 2010-06-16 | Wireless Fibre Systems Ltd | Wearable antenna |
WO2019142445A1 (en) * | 2018-01-22 | 2019-07-25 | 京セラ株式会社 | Wireless communication device and communication system |
US11355833B2 (en) | 2018-01-22 | 2022-06-07 | Kyocera Corporation | Wireless communication device and communication system |
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