Double antennas for passive long range UHF-band RFID
| Autor: | Kota Watanabe, Yuta Watanabe, Hiroshi Waki, Hajime Igarashi |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Engineering
Backscatter Directional antenna business.industry Mechanical Engineering Electrical engineering Integrated circuit Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention Power (physics) Ultra high frequency Mechanics of Materials law Electronic engineering Voltage multiplier Electrical and Electronic Engineering Antenna (radio) business Electrical impedance Computer Science::Information Theory |
| Zdroj: | International Journal of Applied Electromagnetics and Mechanics. 39:671-676 |
| ISSN: | 1875-8800 1383-5416 |
| DOI: | 10.3233/jae-2012-1527 |
| Popis: | This paper proposes double antennas which consist of receiver and backscatter antennas for passive long range UHF-band IC (Integrated Circuit) tags. The passive IC tags reply to reader's queries by using backscatter modulation. For this purpose, variable impedance elements are inserted between the antenna and a voltage multiplier which generate dc power. This decreases the efficiency of received power in the voltage multiplier and reduces the communication range. To solve this problem, we propose to use an independent antenna for backscatter modulation. Experimental results and numerical simulation results show that the double antennas successfully reply data from IC tag to the reader. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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