by Lau, K.L., Sai Hoi Wong, Luk, K.M.
Published in IEEE antennas and wireless propagation letters (2009)

by Mok, Wing Chi, Wong, Sai Hoi, Luk, Kwai Man, Lee, Kai Fong
Published in IEEE transactions on antennas and propagation (01.08.2013)

by Luk, K. M., Wong, Sai Hoi
Published in Microwave and optical technology letters (05.05.2004)