http://reply.papertrans.cn/3/261/26066/26066-31.png
http://reply.papertrans.cn/3/261/26066/26066-32.png
http://reply.papertrans.cn/3/261/26066/26066-33.png
Submitted on: 14 April 2001.
Revised on: 28 May 2001.
Accepted on: 23 June 2001.
Radiophysics and Quantum Electronics
http://reply.papertrans.cn/3/261/26066/26066-35.png
Submitted on: 22 January 2021.
Revised on: 09 February 2021.
Accepted on: 16 February 2021.
Radiophysics and Quantum Electronics