Title :
Frequency-Reconfigurable Archimedean Spiral Antenna
Author :
Dahalan, F.D. ; Rahim, S.K.A. ; Hamid, M.R. ; Rahman, Md Arifur ; Nor, M.Z.M. ; Rani, M.S.A. ; Hall, Peter S.
Author_Institution :
Wireless Commun. Center (WCC), Univ. Teknol. Malaysia (UTM), Skudai, Malaysia
Abstract :
In this letter, a frequency-reconfigurable Archimedean spiral antenna is presented. The proposed antenna consists of a two-arm spiral fed by a coplanar waveguide (CPW) feeding line. A pair of meandered slotlines is implemented at both sides of the CPW-fed slot on the spiral antenna to introduce frequency reconfiguration. This antenna is able to configure operating frequencies from wideband mode (2-8-GHz band) to narrowband mode, which is at 5.8 GHz WLAN band, by switching the p-i-n diode integrated within the radiating antenna surface. Two p-i-n diode switches are located in the meandered slot to achieve frequency reconfigurability. Simulated and measured data are presented to verify the proposed antenna design.
Keywords :
antenna feeds; broadband networks; coplanar waveguides; p-i-n diodes; slot lines; spiral antennas; wireless LAN; CPW feeding line; CPW-fed slot; WLAN band; antenna surface radiation; bandwidth 2 GHz to 8 GHz; coplanar waveguide feeding line; frequency-reconfigurable Archimedean spiral antenna; meandered slotlines; narrowband mode; p-i-n diode switches; two-arm spiral fed; wideband mode; Antenna measurements; Broadband antennas; Narrowband; Slot antennas; Spirals; Wideband; Narrowband; p-i-n diode; reconfigurable antenna; spiral antenna; wideband;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2013.2289957
