Title :
Design of a narrowband 2.45 GHz unidirectional microstrip antenna with a reversed ‘Arrow’ shaped slot for fixed RFID tag and reader
Author :
Saad-Bin-Alam, Md ; Ullah, Mohammad Sakib ; Moury, Sanjida
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., North South Univ., Dhaka, Bangladesh
Abstract :
In this paper, we have designed a newly shaped narrowband microstrip antenna operating at nearly 2.45 GHz based on transmission-line model. We have created a reversed `Arrow´ shaped slot at the edge of opposite side of microstrip line feed to improve return loss and minimize VSWR, which are required for better impedance matching. After simulating the design, we have got higher return loss (approximately -41 dB) and lower VSWR (approximately 1.02:1) at 2.442 GHz. The radiation pattern of the antenna is unidirectional, which is suitable for both fixed RFID tag and reader. The gain of this antenna is 9.67 dB. The design has been simulated in CST Microwave Studio 2011.
Keywords :
UHF amplifiers; antenna feeds; antenna radiation patterns; directive antennas; impedance matching; microstrip antennas; microstrip lines; radiofrequency identification; slot antennas; CST Microwave Studio 2011; RFID reader; RFID tag; UHF amplifiers; antenna radiation pattern; frequency 2.442 GHz; frequency 2.45 GHz; gain 9.67 dB; impedance matching; microstrip line feed; narrowband unidirectional microstrip antenna; radiofrequency identification; reversed arrow shaped slot; transmission-line model; Antenna radiation patterns; Feeds; Gain; Microstrip; Microstrip antennas; Radiofrequency identification; Slot antennas; Microstrip; Narrowband; RFID; Return-loss; VSWR;
Conference_Titel :
Advances in Electrical Engineering (ICAEE), 2013 International Conference on
Conference_Location :
Dhaka
Print_ISBN :
978-1-4799-2463-9
DOI :
10.1109/ICAEE.2013.6750352
