Title :
A new design of reconfigurable slot-ring antenna using PIN diodes
Author :
Mahmoud Shirazi;Tianjiao Li;Xun Gong
Author_Institution :
Department of Electrical Engineering and Computer Science, University of Central Florida, Orlando, 32816, USA
fDate :
7/1/2015 12:00:00 AM
Abstract :
A novel design of frequency reconfigurable slot-ring antenna is proposed. The reconfigurability is achieved by using PIN diode switches across each slot. Two operating states are defined based on different states of the switches (ON or OFF). Separate microstrip feed lines are used to excite the antenna at lower (2.23GHz) and higher (6.81 GHz) frequency bands and two via holes are etched away near the center of each slot for biasing purposes. Numerical simulations using HFSS show that the bandwidth of the antenna is 10.2% and 9.1% in lower and higher frequency bands, respectively, and the antenna efficiency is more than 91% at both bands.
Keywords :
"Slot antennas","Antenna radiation patterns","PIN photodiodes","Microstrip antennas","Antenna feeds"
Conference_Titel :
Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2015 IEEE International Symposium on
DOI :
10.1109/APS.2015.7305524
