| Presentation | 2010-12-02 Analysis of Read Range for UHF Passive RFID Tags in Close Proximity with Dynamic Impedance Measurement of Tag ICs Hiroyuki YOJIMA, Yu TANAKA, Yohtaro UMEDA, Osamu TAKYU, Machiko NAKAYAMA, Kazunari KODAMA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we discuss the change of read range between a UHF passive RFID tag and a reader when a tag is close to another tag. The read range is determined by the strength of the forward and reverse link. These links are identified by comparing the calculated received and reflected power with the measured dependence of the read range on the distance between close tags. We developed a system to measure the tag IC impedance in operation. The accuracy is assured by the short-open-load (SOL) one port calibration. The reader and tag's change of received power is calculated according to the change of tag IC impedance due to the closeness of the tags. As a result, it becomes clear that the read range is determined by the reverse link finally. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | RFID / UHF / Tag / Reader / Antenna / Impedance |
| Paper # | SIS2010-43 |
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| Conference Information | |
| Committee | SIS |
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| Conference Date | 2010/11/25(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Smart Info-Media Systems (SIS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Analysis of Read Range for UHF Passive RFID Tags in Close Proximity with Dynamic Impedance Measurement of Tag ICs |
| Sub Title (in English) | |
| Keyword(1) | RFID |
| Keyword(2) | UHF |
| Keyword(3) | Tag |
| Keyword(4) | Reader |
| Keyword(5) | Antenna |
| Keyword(6) | Impedance |
| 1st Author's Name | Hiroyuki YOJIMA |
| 1st Author's Affiliation | Tokyo University of Science() |
| 2nd Author's Name | Yu TANAKA |
| 2nd Author's Affiliation | Tokyo University of Science |
| 3rd Author's Name | Yohtaro UMEDA |
| 3rd Author's Affiliation | Tokyo University of Science |
| 4th Author's Name | Osamu TAKYU |
| 4th Author's Affiliation | Tokyo University of Science |
| 5th Author's Name | Machiko NAKAYAMA |
| 5th Author's Affiliation | Central Research Center, Toppan Forms Co., Ltd |
| 6th Author's Name | Kazunari KODAMA |
| 6th Author's Affiliation | Central Research Center, Toppan Forms Co., Ltd |
| Date | 2010-12-02 |
| Paper # | SIS2010-43 |
| Volume (vol) | vol.110 |
| Number (no) | 322 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |