Abstract
In this study, we present an implementation of Ultra Wide Band (UWB) Koch Snowflake antenna for Radio Frequency Identification (RFID) applications. The compact antenna, based on the Koch Snowflake shape, is fed by coplanar waveguide (CPW) and by microstrip line with an overall size of 31 × 27 × 1. 6m m 3 . The simulation analysis is performed by CST Microwave Studio and compared with HFSS software. The antenna design exhibits a very wide operating bandwidth of 13 GHz (3.4- 16.4 GHz) and 11 GHz (3.5-14.577 GHz) with return loss better than 10 dB for microstrip line antenna and CPW antenna respectively. A prototype of CPW and microstrip antenna was fabricated on an FR4 substrate and measured. Simulated and measured results are in close agreement. The small size of the antenna and the obtained results show that the proposed antenna is an excellent candidate for UWB-RFID localization system applications.
Highlights
Radio Frequency Identification is one of the fastest growing wireless technologies in recent years
A simple and compact Ultra Wide Band (UWB) antenna fed by microstrip line and coplanar waveguide (CPW), based on the modifications made to the original Koch fractal antenna to achieve enhanced performance for UWBRFID applications is presented
By transforming the microstrip line feed to CPW, the gain and radiation characteristics are conserved, but the bandwidth decreases with 2 GHz
Summary
Radio Frequency Identification is one of the fastest growing wireless technologies in recent years. The conventional RFID systems based on narrowband present various problems which limit the use of the RFID techniques in universal wireless sensing and localization systems, such as relatively short operating range (4–5 m), low positional accuracy, low throughput, and low immunity to signal degradation and multipath effects [3]. To solve these problems in RFID systems, increasing interest is paid to apply UWB technology for RFID.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
