[IEEE 5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers - Nis, Yugoslavia (19-21 Sept. 2001)] 5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517) - Microwave transistors noise modeling by using variable noise wave temperatures