DocumentCode :
3562819
Title :
Polarization reconfigurability patch antenna with improved axial ratio bandwidth
Author :
Osman, M.N. ; Rahim, M.K.A. ; Yusoff, M.F.M. ; Hamid, M.R. ; Majid, H.A.
Author_Institution :
Commun. Eng. Dept., Univ. Teknol. Malaysia, Skudai, Malaysia
fYear :
2014
Firstpage :
271
Lastpage :
274
Abstract :
In this paper, the patch antenna with polarization reconfigurability feature is proposed. The antenna composed of circular patch on the top substrate embedded with four equal-length slits, and is fed at the diagonal of the structure using the coaxial fed technique. To obtain the reconfigurability feature, four switches (copper strips) are appropriately located at the specific position across the slit. This will change the slot length, and then consequently altered the polarization excited by the antenna. By controlling the state of the switch, the polarization of the proposed antenna is able to be reconfigured between linear polarization, left-hand circular polarization and right-hand polarization. Triple layers of substrate are utilized in the design in order to have the broader axial ratio bandwidth. The simulated results of the proposed antenna are presented and discussed. This antenna is operated and covered the whole wireless local area network (WLAN) frequency band.
Keywords :
antenna feeds; electromagnetic wave polarisation; microstrip antennas; slot antennas; switches; wireless LAN; WLAN; antenna fed; circular patch antenna; coaxial fed technique; copper strip; improved axial ratio bandwidth; left-hand circular polarization; linear polarization; polarization reconfigurability patch antenna; right-hand polarization; switch; wireless local area network; Bandwidth; Microstrip antennas; Polarization; Reflection coefficient; Substrates; bandwidth enhancement; circular patch; polarization reconfigurability; slit perturbation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Applied Electromagnetics (APACE), 2014 IEEE Asia-Pacific Conference on
Print_ISBN :
978-1-4799-6602-8
Type :
conf
DOI :
10.1109/APACE.2014.7043800
Filename :
7043800
Link To Document :
بازگشت