ISBN: 978-981-11-3671-9 DOI: 10.18178/wcse.2017.06.152
A CPW-Fed Dual -Band Circularly Polarized Antenna for WPT
Abstract— A novel dual-band circularly polarized (CP) microstrip patch antenna at both 2.45 GHz and 5.8
GHz is proposed and used for harvesting radio frequency (RF) power in wireless power transmission (WPT).
The proposed dual-band circularly polarized microstrip antenna is fed with a coplanar waveguide (CPW)
structure. The antenna can operate in both 2.45GHz and 5.8GHz withthe return loss S11≤-10dB and the axial
ratio AR ≤3dB. This antenna can radiate RHCP wave and LHCP wave respectively with the bidirectional
performance. The peak value of gain (LHCP) in 2.45GHz is 3.46 dBi, and the peak value of gain (RHCP) in
5.8 GHz is 5.65 dBi.
Index Terms— CPW-feed, circularly polarized, WPT(wireless power transmission), dual-band.
Fang Wu, Liguo Sun, ZipengXie
Department of Electronic Engineering and Information Science, University of Science and Technology of China, CHINA
Cite: Fang Wu, Liguo Sun, ZipengXie, "A CPW-Fed Dual -Band Circularly Polarized Antenna for WPT," Proceedings of 2017 the 7th International Workshop on Computer Science and Engineering, pp. 881-885, Beijing, 25-27 June, 2017.