Universiti Teknologi Malaysia Institutional Repository

Geometrical enhancement of planar loop antennas for inductive near-field data links

Eteng, Akaa Agbaeze and Abdul Rahim, Sharul Kamal and Chee, Yen Leow (2015) Geometrical enhancement of planar loop antennas for inductive near-field data links. IEEE Antennas and Wireless Propagation Letters, 14 . pp. 1762-1765. ISSN 1536-1225

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Official URL: http://dx.doi.org/10.1109/LAWP.2015.2423276

Abstract

The low Q-factor requirements of High-Frequency Radio Frequency Identification (HF-RFID) interrogator antennas constrain transmission performance when they are used in data links requiring similar terminal antennas. This letter presents a geometrical approach to enhance the transmission performance of planar loop antennas without a significant change to their standalone performance as HF-RFID interrogator antennas. The method distributes the turns of a modified planar square loop antenna to enhance the coupling level in a symmetric link, while limiting the change in Q-factor from a conventional HF-RFID interrogator antenna. Results from a presented test case show that the design method enables a 5.75% increase in peak transmission coefficient, and a 28.42% fractional bandwidth increase in a symmetric link, compared to a conventional design

Item Type:Article
Uncontrolled Keywords:near-field, planar loop antenna, q-factor
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:55485
Deposited By: Fazli Masari
Deposited On:08 Sep 2016 06:30
Last Modified:09 Aug 2017 06:42

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