http://reply.papertrans.cn/3/255/25421/25421-31.png
Submitted on: 10 January 2000.
Revised on: 24 January 2000.
Accepted on: 20 February 2000.
NULL
http://reply.papertrans.cn/3/255/25421/25421-33.png
http://reply.papertrans.cn/3/255/25421/25421-34.png
http://reply.papertrans.cn/3/255/25421/25421-35.png
Submitted on: 18 September 2007.
Revised on: 30 September 2007.
Accepted on: 19 October 2007.
Progress in Electromagnetics Research Letters