1 / 13

Cavity Measurements

Cavity Measurements. By Aaron Cheng 4 May 2007. Overview. RF measurements Waveguide-coax transition. RF measurements. FETS 4-vane RFQ copper cold model in Imperial College. RF measurements. Input couplers used. RF measurements. Some coupling stability problems. RF measurements.

brandi
Télécharger la présentation

Cavity Measurements

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. Cavity Measurements By Aaron Cheng 4 May 2007

  2. Overview • RF measurements • Waveguide-coax transition

  3. RF measurements FETS 4-vane RFQ copper cold model in Imperial College

  4. RF measurements Input couplers used

  5. RF measurements Some coupling stability problems

  6. RF measurements Some coupling stability problems

  7. Waveguide-coax transition • Studying doorknob wg-coax • Coupler with coaxial RF window • S11 = -14.7527dB • S21 = -0.14029dB

  8. Waveguide-coax transition • Studying doorknob wg-coax • Coupler with planar RF window • S11 = -35.2005dB • S21 = -0.000034dB

  9. Waveguide-coax transition • Studying doorknob wg-coax • Coupler with planar RF window • S11 = -33.7465dB • S21 = -0.00015221dB

  10. Waveguide-coax transition • Studying t-bar wg-coax • Coupler with coaxial RF window • S11 = -59.6085dB • S21 = -0.018748dB

  11. Waveguide-coax transition • Studying t-bar wg-coax • Coupler with planar RF window • S11 = -27.1593dB • S21 = -0.0095028dB

  12. Waveguide-coax transition • Thermal analysis • Vacuum pumping ports and requirements • Electron probes and threshold • Connecting flanges

  13. Summary • Bead pull measurement to be conducted more with unbrazed and brazed RFQ • Waveguide-Coax transition will stop at current status until after PAC conference • Other matters: • Microwave signal generator and amplifier have arrived, currently placed in RAL

More Related