Open AccessDesign and analysis of a wideband circularly polarised perturbed psi‐shaped antenna
Author(s) -
Mondal Tapas,
Maity Sandip,
Ghatak Rowdra,
Bhadra Chaudhuri Sekhar Ranjan
Publication year - 2018
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2017.0569
Subject(s) - wideband , bandwidth (computing) , wimax , dedicated short range communications , physics , frequency band , antenna measurement , optics , axial ratio , microstrip antenna , electrical engineering , antenna (radio) , engineering , electronic engineering , acoustics , telecommunications , wireless
The goal of this study is to propose a wideband circularly polarised (CP) psi‐shaped antenna of high gain and wide bandwidth as necessitated by intelligent transportation system applications. A wide impedance bandwidth of 2 GHz (40%) centred at 5.3 GHz is achieved through the combination of modified TM 01 , TM 20 , and TM 21 modes with three slots on either radiating edge in the simple rectangular geometry of the antenna. The stacked patch configuration helps to achieve a minimum gain of 7 dBic in the entire bandwidth. The CP psi‐shaped antenna has an impressive axial ratio bandwidth of 1 GHz, which is >19% of its centre frequency 5.3 GHz. The proposed antenna can be used for detection of the blind spots of a vehicle at 5.88 GHz (DSRC frequency band), vehicle‐to‐vehicle communication at 5.2 GHz (WLAN IEEE 802.11a frequency band), and vehicle to roadside communication at 5.5 GHz (WiMAX IEEE 802.16 frequency band).