Design of a Small Radio Frequency Identification Tag Antenna Using a Corrugated Meander Line Applicable to a Drug Runout Sensor System

Abstract

This article proposes an ultrahigh frequency band radio frequency identification (RFID) tag antenna for drug runout management that can be used in hospitals. The RFID tag antenna is designed to function as a sensor that alerts drug runout when a drug inside a drip chamber is completely consumed but does not work when a drug remains inside a drop chamber. A previously proposed 915 MHz dipole antenna, is too large to be attached to the drip chamber of a feeding bag. Moreover, the length of the dipole (L) should be increased for conjugate matching with an RFID chip. Therefore, the dipole antenna is downsized so that it can be attached to the drip chamber through a fine meander line structure coupling with a corrugate meander line. A transparent cover is added to enhance the grip force between the designed antenna and the drip chamber and to enable detachment. The dimensions of the completed antenna structure attachable to a drip chamber are 32.59 mm (height) and 13.5 mm (width). The gain reduction due to the decreased antenna length is enhanced. The fabricated antenna shows an average omni-directional read range of 10.65 m on a horizontal plane and has the function of sensing the presence of a drug. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. ⓒ

Drug distribution management system based on IoT

“…The paper is mainly methodological, and does not deal with the technical feasibility of implementing RFID [18]. Author Dong-Ok Ko proposes an ultrahigh-frequency (UHF) band (center frequency = 915 MHz) RFID tag antenna for drug runout detection that can be attached to a drip chamber, The RFID tag antenna is designed to function as a sensor that alerts drug runout when a drug inside a drip chamber is completely consumed but does not work when a drug remains inside a drop chamber [19]. A series of studies have been conducted in the areas of supply chain management, RFID security management, model analysis, etc., and a series of analyses have been made in traditional drug management, hospital efficiency, etc., pointing out deficiencies, but providing a reference for technical operation.…”

Sustaining the Radiation Properties of a 900-MHz-Band Planar LoRa Antenna Using a 2-by-2 Thin EBG Ground Plane

“…In Section II-A, an electrically and physically thin EBG is designed by the modification of the mushroom EBG structure on an FR-4 substrate. For the antenna design in the limited space, we use a stub-loaded meander antenna [14][15][16][17][18]. Its design with the proposed 2-by-2 array of the metal plane is discussed in Section II-B.…”

UHF RFID Conductive Fabric Tag Design Optimization

“…The RFID (Radio Frequency Identification) tags are generally attached to an object and used in a technology that transmits information of the object to a reader through a reader antenna [ 1 ]. Currently, the RFID system is generally applied to transportation cards [ 2 ], logistics management [ 3 ], health care [ 4 ], subway vehicle access control systems [ 5 ] etc. RFID system applications are classified according to the frequency band used [ 6 ].…”