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Title: Design of a 90{degree} overmoded waveguide bend

Conference ·
OSTI ID:10186176
 [1];  [2];  [3]
  1. California Univ., Los Angeles, CA (United States). Dept. of Physics
  2. California Univ., San Diego, La Jolla, CA (United States)
  3. Stanford Linear Accelerator Center, Menlo Park, CA (United States)

A design for a 90{degree} bend for the TE{sub 01} mode in over-moded circular waveguide is presented. A pair of septa, symmetrically placed perpendicular to the plane of the bend, are adiabatically introduced into the waveguide before the bend and removed after it. Introduction of the curvature excites five propagating modes in the curved section. The finite element field solver YAP is used to calculate the propagation constants of these modes in the bend, and the guide diameter, septum depth, septum thickness, and bend radius are set so that the phase advances of all five modes through the bend are equal modulo 2{pi}. To a good approximation these modes are expected to recombine to form a pure mode at the end of the bend.

Research Organization:
Stanford Linear Accelerator Center, Menlo Park, CA (United States); California Univ., Los Angeles, CA (United States). Dept. of Physics; California Univ., San Diego, La Jolla, CA (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC03-76SF00515; FG03-93ER40759; FG03-92ER40695
OSTI ID:
10186176
Report Number(s):
SLAC-PUB-6141; CONF-930511-404; ON: DE93040975; BR: KA0301000; KA0301000; TRN: 93:021841
Resource Relation:
Conference: PAC `93: international particle accelerator conference,Washington, DC (United States),17-20 May 1993; Other Information: PBD: Apr 1993
Country of Publication:
United States
Language:
English