[1] Getting Started: An Anternna Problem. Pittsburgh: Ansoft Corporation; 1999; 3 - 4
[2] Shi S C; Chin C C; Wang M J; et al. Development of a 670-GHz SIS mixer for SMART.In: Proc.12th Int.Symp.On Space THz Tech.; San Diego; CA; Feb. 2001; 215 - 222
[3] Blundell R; Tong C E; Barrett J W; et al. A fixed-tuned low noise SIS receiver for the 600GHz frequency band. In: Proc.6th Int.Symp. On Space THz Tech.; Pasadena; CA; Mar.1995; 295 - 304
[4] Goldsmith Paul F. Quasioptical systems. New York: IEEE press; 1997; 82 - 83