Title :
Flower-petal mode converter for NLC
Author :
Hoag, H.A. ; Tantawi, S.G. ; Callin, R. ; Deruyter, H. ; Farkas, Z.D. ; Ko, K. ; Kroll, N. ; Lavine, T.L. ; Menegat, A. ; Vlieks, A.E.
Author_Institution :
Stanford Linear Accel. Center, Stanford Univ., CA, USA
Abstract :
It is important to minimize power loss in the waveguide system connecting klystron, pulse-compressor, and accelerator in an X-Band NLC. However, existing designs of klystron output cavity circuits and accelerator input couplers utilize rectangular waveguide which has relatively high transmission loss. It is therefore necessary to convert to and from the low-loss mode in circular waveguide at each end of the system. A description is given of development work on high-power, high-vacuum `flower-petal´ transducers, which convert the TE10 mode in rectangular guide to the TE01 mode in circular guide. A three-port modification of the flower petal device, which can be used as either a power combiner at the klystron or a power divider at the accelerator is also described
Keywords :
S-parameters; cavity resonators; electron accelerators; klystrons; linear accelerators; nuclear electronics; transducers; waveguide components; NLC; Next Linear Collider; X-Band NLC; accelerator; accelerator input couplers; circular waveguide; flower-petal mode converter; klystron; klystron output cavity circuits; power combiner; power divider; pulse-compressor; rectangular waveguide; three-port modification; waveguide system; Circuits; Couplers; Joining processes; Klystrons; Power combiners; Power dividers; Propagation losses; Rectangular waveguides; Tellurium; Transducers;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.308664
