400 W, CW Helix TWT Series, 13.75 GHz to 14.5 GHz, Periodic-Permanent, Magnet Focused, Coaxial Input, Waveguide Output, and Conduction Cooled. Custom configurations are also available. These variations in the performance and configuration include: mechanical configuration, electrical and RF connections, & dual stage depressed collector. PICTURE Model Number Frequency (GHz) Power Output (Min.) VTU-6395M1A VTU-6395M7A 13.75 - 14.5 13.75 - 14.8 400 W 400 W Operating Parameters Features • • • • • • • • 400 Watts PPM Focusing Coaxial Input Waveguide Output Any Mounting Position Weight: 9 lbs. max (6.3 typical 2.6 kg) Conduction Cooled Dual Stage Collector Heater Surge Current Heater Voltage Heater Current Helix Voltage Collector Voltage Collector Voltage Cathode Current Parameters: Ef If If (surge) Ew Eb1 Eb2 Ik Units: Maximum: Minimum: Typical: V 6.5 6.1 6.3 Adc 1.8 1.0 1.3 A 5.0 --<5.0 kVdc 9.0 8.2 8.8 kVdc 0.52 Ew 0.48 Ew 0.50 Ew kVdc 0.34 Ew 0.30 Ew 0.32 Ew mAdc 310 --280 Helix Current Drive Power Parameters: Iw Pd Cathode WarmUp Time tk Load VSWR Baseplate Temp. Collector 1 Current Collector 2 Current Ib1 Ib2 Units: Maximum: Minimum: Typical: mAdc 10 --<5.0 mW 50 --1.0 minutes --3 3 mA (dc) 175 --130 mA (dc) 310 --145 1.5:1 --1.2 °C 120 --85 The values listed above represent specified limits for the product and are subject to change. The data should be used for basic information only. Formal, controlled specifications may be obtained from CPI for use in equipment design. For additional information on CPI MPP products contact: CPI MPP, Helix TWT Operation - 811 Hansen Way, Palo Alto, CA 94303-0750 Phone: 650-846-3900, Fax: 650-494-8779, Email: [email protected], www.cpii.com/mpp