1 / 19

X Band Vacuum Devices

X Band Vacuum Devices. Presented by: Tony Johns, CPI Europe, Surrey, England Tel: +44 (1932) 256 935 Fax: +44 (1932) 241 271 Mobile: +44 (7880) 507 913 Email: tony.johns@cpii.com With material from: Adam Balkcum, Steve Lenci, Mike Cusick, Peter Kolda CPI, Palo Alto, California, USA.

acharlie
Download Presentation

X Band Vacuum Devices

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. X Band Vacuum Devices Presented by: Tony Johns, CPI Europe, Surrey, England Tel: +44 (1932) 256 935 Fax: +44 (1932) 241 271 Mobile: +44 (7880) 507 913 Email: tony.johns@cpii.com With material from: Adam Balkcum, Steve Lenci, Mike Cusick, Peter Kolda CPI, Palo Alto, California, USA

  2. Historical Timeline 1990:Eimac awarded an Emmy for technological achievement Klystrode IOT 2001:Current management team takes leadership 2007:CPI acquires Malibu Research Associates 1965:Eitel-McCullough merges with Varian Associates to form Eimac Division 1935: Eimac Division founded as Eitel McCullough, Inc. 1954:CMP Division is established in Canada 1930 1940 1950 1960 1970 1980 1990 2001 2004 2006 2007 2004:Cypress Group Acquires CPI CPI Acquires Econco Broadcast Service 1948:CPI is originated as founding technology group of Varian Associates 1959:Varian Associates acquires Bomac Labs in Beverly, MA. 1971:Varian integrates SFD Labs of Union, NJ with Beverly MA, division renamed BMD 1995:Leonard Green & Partners, L.P. purchases entire Electron Devices Business from Varian and forms CPI 2006:CPI stock publicly trades -NASDAQ: “CPII" MPP & Eimac divisions consolidate

  3. Communications & Power Industries Inc. • Publicly held • NASDAQ: “CPII" • Established in August 1995 • Worldwide Sales and Service Organization • 1,700 Employees Worldwide • Six autonomous business units: • BMD Beverly, MA, U.S.A. • CMP Georgetown, ONT, Canada • Econco Woodland, CA, U.S.A. • MPP Palo Alto, CA, U.S.A • Satcom Georgetown, ONT, Canada (Manufacturing) Palo Alto, CA, U.S.A (R&D, Marketing, Service) • Malibu Research Associates, Camarillo, CA, U.S.A.

  4. —Manufacturing Operation Communications & Medical Products Division Georgetown, Ontario, Canada Palo Alto, California —R&D, Marketing, Service 2 Manufacturing/R&D Locations Woodland, California Beverly, MABeverly Microwave Products Division Camarillo, CA Malibu Research Associates

  5. CPI Specialities • High Power • High Efficiency • Broad Product Offering • Consultative Engineering Services

  6. Klystrons Gyrotrons Helix TWTs Coupled Cavity TWTs Ring Bar TWTs Power Grid Tubes Inductive Output Tubes Magnetrons Cross-Field Amplifiers X-Ray Generators Satellite Communications amplifiers Antennas Products Supplied

  7. Helix X Band Products VTX6389G5 Typical Operating Parameters • Frequency 8.15 GHz • Power Output CW 2.5 kW • Efficiency 59 % • Beam Voltage 15 kV • Beam Current 1 A

  8. VKL-8301 Multiple Beam Klystron Typical Operating Parameters • Frequency 1.3 GHz • Peak Power Output 10 MW • Ave. Power Output 150 kW • Power Asymmetry 0.7 % • Efficiency 59 % • Beam Voltage 120 kV • Beam Current 141 A • Microperveance 3.4 • RF Pulse Length 1.5 ms • Saturated Gain 49 dB • Cathode loading 2.2 A/cm2 Used in European X-Ray FEL at DESY. Potential use in ILC. Horizontal version in progress with integrated X-ray shielding and cart currently in test.

  9. VKL-9130 IOT Typical Operating Parameters • Frequency 1.3 GHz • Peak Power 90 kW • Beam Voltage 42 kV • Beam Current 3.4 A • Bandwidth (-1 dB) 2 MHz • Gain 20 dB • Efficiency 60 % Recent testing successful at FZD Currently developing 120 kW CW device

  10. VKX-7864B Klystron 250 kW CW in X-Band Typical Operating Parameters • Power Output 250 kW • Beam Voltage 51 kV • Beam Current 11.05 A • Supply Power 564 kW • Efficiency 44 % • Frequency 8.560 GHz • 1dB Bandwidth 60 MHz • Saturated Gain 45 dB • Cavities 6 • Cooling Method liquid

  11. VTX-5681 Coupled Cavity TWT 100 kW Pulsed in X-band Typical Operating Parameters • Frequency 10 GHz • Peak Power Output 100 kW • Duty 35 % • Saturated Gain 49 dB • Bandwidth (-1 dB ) 1 GHz • Beam Voltage 45 kV • Beam Current 11 A

  12. VKX-7841 Klystron Used in experimental accelerator research circa 1980, 5 were made. Very compact. Typical Operating Parameters • Frequency 9.5 GHz • Peak Power Output 650 kW • Ave. Power Output 0.2 kW • Saturated Gain 71 dB • Bandwidth (-1 dB ) 45 MHz • Efficiency 28 % • Beam Voltage 8 kV • Beam Current 30 A

  13. Recent Advancements • Market drivers • Requirements for higher efficiency • Desire for lower beam voltages • Need for smaller size • CPI Response • Sheet Beam Klystron • PPM Focused Klystron

  14. VKX-7993 Klystron 2.7 MW Pulsed Typical Operating Parameters • Frequency 9.3 GHz • Peak Power 2.7 MW • Peak Power (goal) 5.5 kW • Saturated Gain 52 dB • Bandwidth (-1 dB ) 65 MHz • Efficiency 43 % • Beam Voltage 120 kV • Beam Current 52 A Compact device, recently in production

  15. VKX-8293A Sheet Beam Klystron Sheet Beam Technology Typical Operating Parameters • Frequency 9.35 GHz • Peak Power Output 2.7 MW • Ave. Power Output 0.3 kW • Saturated Gain 42 dB • Efficiency 25 % • Beam Voltage 76 kV • Beam Current 144 A

  16. Sheet Beam Klystron

  17. Drift Tunnel Cathode Beam Direction Focus Electrode Anode Sheet Beam Formation

  18. VKX-8293A Sheet Beam Klystron • Beam transmission was 63% for above parameters. • Best transmission was 94% at a much lower operating voltage. • Cathode position will be adjusted to improve transmission.

  19. Conclusions • X band frequency range fertile • Efficiency continues to improve, over 60% • Size of products shrinking • Modern design codes allow complex analysis of beam dynamics • New RF structures possible • Power outputs from hundreds of watts to tens of megawatts • Attracting new engineers into vacuum device field

More Related