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Low-Profile RFID Tag Antenna Using Compact AMC Substrate for Metallic Objects
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- Authors
- Dong Ho Kim, Jun Ho Yeo
- Issue Date
- 2008-03
- Citation
- IEEE Antennas and Wireless Propagation Letters, v.7, pp.718-720
- ISSN
- 1536-1225
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- A low-profile (as A/100) passive radio frequency identification (RFID) tag antenna incorporated with a compact artificial magnetic conductor (AMC) substrate is proposed. A novel modified rectangular patch type AMC substrate with offset vias is employed to significantly reduce the planar dimensions of a tag antenna, which is about 0.1{\\lambda} × 0.2{\\lambda} The effect of a ground plane size and the number of AMC unit cells on the antenna performance such as return loss and gain is investigated with a view of tag installation. It is demonstrated through experiments that the proposed tag antenna shows relatively tolerant reading distances from 2.4 to 4.8 m under various platform environments such as a conductive plate or a plastic water container. © 2008 IEEE.
- KSP Keywords
- AMC substrate, Antenna performance, Artificial Magnetic Conductor, Ground Plane(GP), Plane size, RFID Tag Antenna, Rectangular patch, Return Loss, Unit cell, low-profile, metallic objects