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Siti Nailah Mastura Zainarry – A Pattern-Reconfigurable Single-Element Microstrip Antenna
October 5, 2018 @ 3:10 pm - 3:35 pm
ABSTRACT A pattern-reconfigurable antenna based on a simple single-element microstrip antenna is presented. The antenna has a shorting wall near the patch center to introduce two slightly shifted resonances at its two radiating edges. A stub-loaded varactor is mounted at one of the patch radiating edges to obtain pattern reconfigurability, by electronically detuning the frequency of one of the resonances. Preliminary measurements of a prototype demonstrate that the antenna exhibits beam squint up to 39o on one side of the patch at the center frequency of 2.40 GHz, when the bias voltage is tuned from 18 to 3.8 V. Also for a fixed bias voltage of 6.3 V, the beam can scan from 8o to 43o as a function of frequency within the operation bandwidth from 2.35 to 2.45 GHz. The presented results validate the concept which will be further extended to scan beam on two sides with frequency selectivity.
Speaker Nailah received her B.E. (Microelectronics Engineering) and M.Sc. (Electronic Systems Design Engineering) in 2010 and 2012, respectively. She is currently embarked on her PhD journey with the Adelaide Applied Electromagnetics Group in the School of EEE. Her research involves reconfigurable antennas, phase array antenna and artificial magnetic conductor surface array in Microwave applications.