2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, Vancouver, BC, Canada. IEEE: pp. 85-86; ISBN 978-1-4799-7814-4
2015 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), Hua Hin, Thailand. IEEE: pp. 1-6; ISBN 978-1-4799-7961-5