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Enhancing RF Properties with DDS2HPT: Design and Analysis of Cell Structures

This presentation explores the design and analysis of RF cell structures using DDS2HPT technology. The focus is on maximizing RF properties, such as Esur values and beam loading conditions, through careful tuning of parameters like a, b, and L. The study delves into unloaded and loaded conditions, emphasizing the importance of matching cell design for optimal performance. Surface fields, circuit parameters, and Poynting vectors are examined to understand the behavior of the system. By varying parameters within specified ranges, significant improvements in performance can be achieved.

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Enhancing RF Properties with DDS2HPT: Design and Analysis of Cell Structures

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  1. CLIC_DDS2HPT 11.03.2010 V. Khan

  2. Cell#2 Cell#5 Cell#1 Cell#13 Cell#17 Cell#9 Cell#23 Cell#24 Cell#21

  3. 24 cells No interleaving Undamped Damped ∆fmin = 62.3 MHz ∆tmax =16.05 ns ∆s = 4.81 m 24 cells No interleaving

  4. N=1 Scanning a’s and g’s for a min S11

  5. S. Tantawi method CLIC_DDS2HPT Cell#1 │S22│=0.9527 ϕ22=179.65

  6. Next

  7. Back up slides

  8. Dipole mode : circuit parameters DDS1 : Plain curve ; DDS2 : Curve with dots

  9. DDS2_HPT : Surface fields

  10. DDS2_HPT : RF properties Esur Max. Values Esur=220 MV/m ∆T = 51 deg. Pin= 70.8 Eacc_UL=131 MV/m Sc=6.75 W/μm2 RF-beam-eff=23.5% 35*Sc Eacc Pin ∆T Dashed curves : Unloaded condition Solid curves: Beam loaded condition

  11. Matching cell design L • Two options • Vary a and b : very small room to vary b • vary a and L

  12. N=1 a: 4-6 mm N=2 a: 4-6 mm N=3 a: 4-6 mm

  13. N=1 a: 4.4-4.6 mm N=2 a: 4.4-4.6 mm N=3 a: 4.4-4.6 mm

  14. Next

  15. Cell # 1 Where S= Poynting vector @ 95 MV/m

  16. Cell # 24 @ 138 MV/m

  17. DDS2_HPT structure

  18. Cell # 24 Cell # 1

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