Ku-Band Klystrons The Ku-Band Series of klystron is designed for use in ground based earth-to-satellite communication amplifiers. The Ku-Band Series is available in various configurations and frequency ranges to suit exact customer requirements. This family of klystrons has output power specifications ranging from 1200 to 2450 watts over 75 to 85 MHz of instantaneous bandwidth. These klystrons can be configured to provide users with 6,8,12, or 24 channels thus allowing operators to select preset center frequencies within seconds. In addition, Digital Fast Tuner System (DFTS) channel changers are available for sub-second selection of up to 50 channels. RF and Electrical Specifications Frequency Range (Channel Centers) VKU2454A 12.79 to 13.21 GHz VKU2455A 13.72 to 14.46 GHz VKU2455B, and D 13.72 to 14.475 GHz VKU2482B, and C 14.50 to 14.80 GHz VKU7791J, VKU7820A, and C 14.025 to 14.475 GHz VKU7791P 14.00 to 14.50 GHz Output Power VKU2454A VKU2455A, VKU2482B VKU2455B, and D VKU2482C VKU7791J VKU7791P VKU7820A, and C 2200W 2000W 2450W 2450W 2000W 1200W 2450W Instantaneous Bandwidth - minimum at –1 dB points VKU2455A 80 MHz VKU7791P 75 MHz Other models 85 MHz Gain - minimum (at rated power) VKU2482B, and C 43 dB VKU7791P 37 dB Other models 45 dB Beam Voltage - maximum VKU2455A and B, VKU2482B Other Models 8.8 kV 9.0 kV Beam Current - maximum VKU7791P, VKU7820A VKU2454A, VKU2455A VKU2455B Other Models 1.20A 1.10A 1.30A Heater Voltage - nominal Heater Current - typical 6.5 V 4.2 A (DFTS Model Shown) Physical Characteristics Dimensions See outline drawings. Weight - approximate 55 lb to 80 lb or 25 kg to 37 kg. Depending on model. Operating Orientation Collector up Cooling collector flow - minimum VKU7791P Other models body flow - minimum VKU2454A, VKU2455A, VKU7791J VKU7791P Other models Forced Air RF Connectors input/output Focusing communications & medical products division 450 lb/hr (205 kg/hr) 1000 lb/hr (455 kg/hr) 120 lb/hr (55 kg/hr) 90 lb/hr (41 kg/hr) 150 lb/hr (68 kg/hr ) Mates with UG-419/U Integral permanent magnet Ku-Band Klystrons Typical Characteristics Type Frequency Range Instantaneous (GHz)*Note 1 Bandwidth (MHz)*Note 2 Output Power (W) Gain (dB) Beam Voltage (kV) Beam Current (mA) VKU2454A 12.79 - 13.21 90 2300 49 8.3 1.05 VKU2455A 13.72 - 14.46 90 2200 49 8.4 1.05 VKU2455B, D 13.72 - 14.475 90 2520 49 8.6 1.10 VKU2482B 14.50 - 14.80 90 2200 48 8.6 1.06 VKU2482C 14.50 - 14.80 90 2480 48 8.7 1.06 VKU7791J 14.025 - 14.75 88 2050 49 8.2 1.05 VKU7791P 14.00 - 14.50 85 1250 38 7.9 0.7 VKU7820A, C 14.025 - 14.475 90 2500 49 8.6 1.10 • Note 1: Frequencies listed are channel centers. • Note 2: Bandwidth measured at –1dB points. • For full specifications please contact CPI. Sample Outline Drawing For complete information on the full Ku-Band Series and other klystrons used in satellite communications, please contact your local CPI office, or CPI Canada Inc. communications products division Communications&&medical Power Industries Canada Inc. 45 River Drive / Georgetown, Ontario / Canada L7G 2J4 Hot Line Telephone: 1-800-267-JETSAT Tel: (905) 877-0161 Fax: (905) 877-5327 E-MAIL: [email protected] WEB: www.cpii.com/cmp