TY - GEN
T1 - Comparison between a novel liquid switch and a GaAs MMIC switch for reconfiguring the operating frequency of a Vivaldi antenna
AU - Borda-Fortuny, Cristina
AU - Tong, Kin Fai
AU - Chetty, Kevin
AU - Wong, Kai Kit
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/7/5
Y1 - 2017/7/5
N2 - This article proposes a novel liquid switch to reconfigure the operating frequency of a frequency-independent antenna. A Vivaldi antenna using a low-cost GaAs MMIC RF switch is used as a landmark to compare the measured results. Two prototypes are measured in an anechoic chamber and the results have been compared. The antennas operate in two modes: low-band mode at 3 GHz with 11 dBi of gain and high-band mode operating at 4.5 GHz with a measured gain of 10.8 dBi. The reconfigurable Vivaldi antenna proposed here presents high isolation between operating bands, a minimum of 12 dB, while maintaining high gain and stable radiation pattern which is suitable for cognitive radio applications.
AB - This article proposes a novel liquid switch to reconfigure the operating frequency of a frequency-independent antenna. A Vivaldi antenna using a low-cost GaAs MMIC RF switch is used as a landmark to compare the measured results. Two prototypes are measured in an anechoic chamber and the results have been compared. The antennas operate in two modes: low-band mode at 3 GHz with 11 dBi of gain and high-band mode operating at 4.5 GHz with a measured gain of 10.8 dBi. The reconfigurable Vivaldi antenna proposed here presents high isolation between operating bands, a minimum of 12 dB, while maintaining high gain and stable radiation pattern which is suitable for cognitive radio applications.
UR - http://www.scopus.com/inward/record.url?scp=85027183626&partnerID=8YFLogxK
U2 - 10.1109/iWEM.2017.7968762
DO - 10.1109/iWEM.2017.7968762
M3 - Conference contribution
AN - SCOPUS:85027183626
T3 - 2017 International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2017
SP - 33
EP - 35
BT - 2017 International Workshop on Electromagnetics
A2 - Wang, Yi
A2 - So, Kwok-Kan
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2017
Y2 - 30 May 2017 through 1 June 2017
ER -