Chen, Z. N., Ammann, M. J., Qing, X., Wu, X. H., See, T. S. P., and Cai, A.,
“Planar Antennas”,
IEEE Microwave Magazine, vol. 7, no. 6, pp. 63-73, 2006.
Chen, Z. N., Ammann, M. J., Chia, M. Y. W., and See, T. S. P.,
“Annular Planar Monopole Antennas”,
Microwaves, Antennas and Propagation, IEE Proceedings, vol. 149, no. 4, pp. 200-203, 2002.
Chen, Z. N., Ammann, M. J., Chia, M. Y. W., and See, T. S. P.,
“Circular Annular Planar Monopoles with EM Coupling”,
Microwaves, Antennas and Propagation, IEE Proceedings -, vol. 150, no. 4, pp. 269-273, 2003.
Chen, Z. N., Chia, M. Y. W., and Ammann, M. J.,
“Optimization and Comparison of Broadband Monopoles”,
Microwaves, Antennas and Propagation, IEE Proceedings -, vol. 150, no. 6, pp. 429-435, 2003.
Chen, Z. N., Ammann, M. J., and Chia, M. Y. W.,
“Broadband Square Annular Planar Monopoles”,
Microwave and Optical Technology Letters, vol. 36, no. 6, pp. 449-454, 2003.