RFID antenna module with high isolation characteristic between Tx and Rx

Dong Hoon Park; Gui Sung Kim; Hyung Eun Kim; Hye Mi Park; Kai Wei; Eun Cheon Lim; Moon Que Lee

doi:10.5370/KIEE.2011.60.2.370

RFID antenna module with high isolation characteristic between Tx and Rx

Dong Hoon Park, Gui Sung Kim, Hyung Eun Kim, Hye Mi Park, Kai Wei, Eun Cheon Lim, Moon Que Lee

School of Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

In this paper, we propose an antenna module with high isolation between Tx and Rx in RFID reader module. The proposed module consists of a quadrafilar antenna and a directional coupler with a switchable dummy load to improve the directivity. The proposed module achieves the isolation higher than 20 dB between Tx and Rx. To show the validity of the proposed scheme, we have performed the measurement of tagging range and multi-tagging ability. The experiment results show that the detecting range and multi-tagging ability are enhanced by 81% and 200%, respectively.

Original language	English
Pages (from-to)	370-375
Number of pages	6
Journal	Transactions of the Korean Institute of Electrical Engineers
Volume	60
Issue number	2
DOIs	https://doi.org/10.5370/KIEE.2011.60.2.370
State	Published - Feb 2011

Keywords

Directional coupler
Multi tagging
RFID
Rfid front-end
Tagging range
Tx leakage
Tx-Rx isolation

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title = "RFID antenna module with high isolation characteristic between Tx and Rx",

abstract = "In this paper, we propose an antenna module with high isolation between Tx and Rx in RFID reader module. The proposed module consists of a quadrafilar antenna and a directional coupler with a switchable dummy load to improve the directivity. The proposed module achieves the isolation higher than 20 dB between Tx and Rx. To show the validity of the proposed scheme, we have performed the measurement of tagging range and multi-tagging ability. The experiment results show that the detecting range and multi-tagging ability are enhanced by 81% and 200%, respectively.",

keywords = "Directional coupler, Multi tagging, RFID, Rfid front-end, Tagging range, Tx leakage, Tx-Rx isolation",

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AU - Park, Dong Hoon

AU - Kim, Gui Sung

AU - Kim, Hyung Eun

AU - Park, Hye Mi

AU - Wei, Kai

AU - Lim, Eun Cheon

AU - Lee, Moon Que

PY - 2011/2

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N2 - In this paper, we propose an antenna module with high isolation between Tx and Rx in RFID reader module. The proposed module consists of a quadrafilar antenna and a directional coupler with a switchable dummy load to improve the directivity. The proposed module achieves the isolation higher than 20 dB between Tx and Rx. To show the validity of the proposed scheme, we have performed the measurement of tagging range and multi-tagging ability. The experiment results show that the detecting range and multi-tagging ability are enhanced by 81% and 200%, respectively.

AB - In this paper, we propose an antenna module with high isolation between Tx and Rx in RFID reader module. The proposed module consists of a quadrafilar antenna and a directional coupler with a switchable dummy load to improve the directivity. The proposed module achieves the isolation higher than 20 dB between Tx and Rx. To show the validity of the proposed scheme, we have performed the measurement of tagging range and multi-tagging ability. The experiment results show that the detecting range and multi-tagging ability are enhanced by 81% and 200%, respectively.

KW - Directional coupler

KW - Multi tagging

KW - RFID

KW - Rfid front-end

KW - Tagging range

KW - Tx leakage

KW - Tx-Rx isolation

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JO - Transactions of the Korean Institute of Electrical Engineers

JF - Transactions of the Korean Institute of Electrical Engineers

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RFID antenna module with high isolation characteristic between Tx and Rx

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Keywords

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