TY - GEN
T1 - Design of a wideband circularly polarized RFID reader antenna
AU - Chihava, Royalty H.
AU - Polycarpou, Anastasis C.
AU - Nestoros, Marios
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/2
Y1 - 2020/2
N2 - The main objective of this paper is to design a circularly polarized patch antenna with a very large bandwidth covering the UHF (ultra-high frequency) RFID band of 860 MHz-928 MHz. The objective is to obtain an axial ratio (AR) lower than 3 dB and a return loss (RL) lower than-10 dB for the entire band of interest. The patch antenna design must also possess attributes such as high gain, high efficiency, ease of fabrication, low-cost fabrication and small form factor. The design consists of two stacked patch antennas with truncated corners and a square slot in the center. A coaxial cable is connected directly to the main patch, which is positioned in between the ground plane and the parasitic patch on top. The main patch also has an open circuit stub attached to it to improve impedance matching. A laborious design procedure, along with numerous parametric studies, were conducted using ANSYS HFSS in order to optimize the design.
AB - The main objective of this paper is to design a circularly polarized patch antenna with a very large bandwidth covering the UHF (ultra-high frequency) RFID band of 860 MHz-928 MHz. The objective is to obtain an axial ratio (AR) lower than 3 dB and a return loss (RL) lower than-10 dB for the entire band of interest. The patch antenna design must also possess attributes such as high gain, high efficiency, ease of fabrication, low-cost fabrication and small form factor. The design consists of two stacked patch antennas with truncated corners and a square slot in the center. A coaxial cable is connected directly to the main patch, which is positioned in between the ground plane and the parasitic patch on top. The main patch also has an open circuit stub attached to it to improve impedance matching. A laborious design procedure, along with numerous parametric studies, were conducted using ANSYS HFSS in order to optimize the design.
KW - Circularly polarized antenna
KW - RFID UHF antenna design
UR - http://www.scopus.com/inward/record.url?scp=85086305522&partnerID=8YFLogxK
U2 - 10.1109/iWAT48004.2020.1570618001
DO - 10.1109/iWAT48004.2020.1570618001
M3 - Conference contribution
AN - SCOPUS:85086305522
T3 - 2020 International Workshop on Antenna Technology, iWAT 2020
BT - 2020 International Workshop on Antenna Technology, iWAT 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 International Workshop on Antenna Technology, iWAT 2020
Y2 - 25 February 2020 through 28 February 2020
ER -