Abstract
Radio frequency identification (RFID) is a very prominent technology and is used in object-attached identification and tracking tags. In this paper a triple band monopole antenna is designed to work at 2.2-2.6 GHz (lower RFID band), 5.3-6.8 GHz and 8.7-9.5 GHz (upper RFID band) frequency ranges. The antenna design resembles a modified F-shaped radiator and is built on a low cost easily available FR4 dielectric substrate. Initially an F-shaped radiator with partial ground plane is studied which exhibits the operation at 2.6 and 6.5 GHz. Further, modifying this F-shaped radiator exhibits an additional resonance at 9.2 GHz. Fundamental characteristics such as reflection coefficient (S11), radiation pattern and 3D gain have been analyzed and good results have been obtained. Parametric analysis is carried out to fix the optimized antenna dimensions. All the simulations are carried out using the high frequency structure simulator software (HFSS). The antenna structure is easy to design and produce, and ideal for use in RFID applications.document quickly and accurately, to determine its relevance to their interests, and thus to decide whether to read the document in its entirety.
Highlights
A days the use of compact and multiband antenna is very much required for diverse wireless applications [1,2,3,4]
A triple band properties for Radio frequency identification (RFID) applications are achieved using the built antenna.This can be done by altering the pattern of radiation in the antenna configuration being proposed
In this paper antenna to be utilized for RFID technologies is suggested
Summary
A days the use of compact and multiband antenna is very much required for diverse wireless applications [1,2,3,4]. Printed monopole antennas are prefered because of their simplistic structures and compact size and are optimal for dual band and multiband systems. It is best suited for achieving large bandwidth and omnidirectional radiation pattern. A 38x30x1.6mm dual band monopole antenna was proposed by Pandey et al [16], the antenna provides equivalent broadband impedance, and acceptable gain features greater than 2.5 dBi and reliable patterns of omnidirectional radiation in the RFID and WLAN frequency areas. Cheng et al [19], proposed a CPW fed monopole antenna for dual band operation using strip sleeves, with operation bandwidth range between 900-1800 MHz. A single band patch antenna operating at 5.4 GHz is presented in [20], monopole antennas are an attractive choice and are representative for wearable electronics because of their low-profile properties, compatible with planning and non-planar surfaces. All the necessary simulations are carried out using high frequency structure simulator software (HFSS)
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