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Smart Antennas for Automatic Radio Frequency Identification Readers

Smart Antennas for Automatic Radio Frequency Identification Readers

Nemai Chandra Karmakar
Copyright: © 2009 |Pages: 25
ISBN13: 9781599049885|ISBN10: 1599049880|ISBN13 Softcover: 9781616927479|EISBN13: 9781599049892
DOI: 10.4018/978-1-59904-988-5.ch021
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MLA

Karmakar, Nemai Chandra. "Smart Antennas for Automatic Radio Frequency Identification Readers." Handbook on Advancements in Smart Antenna Technologies for Wireless Networks, edited by Chen Sun, et al., IGI Global, 2009, pp. 449-473. https://doi.org/10.4018/978-1-59904-988-5.ch021

APA

Karmakar, N. C. (2009). Smart Antennas for Automatic Radio Frequency Identification Readers. In C. Sun, J. Cheng, & T. Ohira (Eds.), Handbook on Advancements in Smart Antenna Technologies for Wireless Networks (pp. 449-473). IGI Global. https://doi.org/10.4018/978-1-59904-988-5.ch021

Chicago

Karmakar, Nemai Chandra. "Smart Antennas for Automatic Radio Frequency Identification Readers." In Handbook on Advancements in Smart Antenna Technologies for Wireless Networks, edited by Chen Sun, Jun Cheng, and Takashi Ohira, 449-473. Hershey, PA: IGI Global, 2009. https://doi.org/10.4018/978-1-59904-988-5.ch021

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Abstract

Various smart antennas developed for automatic radio frequency identification (RFID) readers are presented. The main smart antennas types of RFID readers are switched beam, phased array, adaptive beamfsorming and multiple input multiple output (MIMO) antennas. New development in the millimeter wave frequency band?60 GHz and above? exploits micro-electromechanical system (MEMS) devices and nano-components. Realizing the important of RFID applications in the 900 MHz frequency band, a 3×2-element planar phased array antenna has been designed in a compact package at Monash University. The antenna covers 860-960 GHz frequency band with more than 10 dB input return loss, 12 dBi broadside gain and up to 40° elevation beam scanning with a 4-bit reflection type phase shifter array. Once implemented in the mass market, RFID smart antennas will contribute tremendously in the areas of RFID tag reading rates, collision mitigation, location finding of items and capacity improvement of the RFID system.

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