Title :
Broadband coax-waveguide transitions
Author :
Rizawa, T. ; Pendleton, R.
Author_Institution :
Linear Accel. Center, Stanford Univ., CA, USA
Abstract :
A broadband coax-waveguide transition for the high power test of the PEP-II RF cavity HOM waveguides has been studied. The design requirements are that it must have a VSWR less than 2 over the frequency range 714 MHz to 2500 MHz and transmit 10 kW average power from a 250 mm×25.4 mm rectangular waveguide to a 50 Ohm coaxial line. A double ridged waveguide section with the same cut-off frequency as the rectangular waveguide has been selected to keep its impedance near 50 Ohm over the frequency range. HFSS calculation results and design of the transition are reported
Keywords :
accelerator RF systems; accelerator cavities; coaxial waveguides; electron accelerators; storage rings; 10 kW; 50 ohm; 714 to 2500 MHz; HOM waveguides; PEP-II; RF cavity; VSWR; broadband coax-waveguide transition; coaxial line; double ridged waveguide; high power test; rectangular waveguide; Coaxial components; Cutoff frequency; Heating; Impedance; Linear accelerators; Radio frequency; Rectangular waveguides; Testing; Waveguide components; Waveguide transitions;
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2934-1
DOI :
10.1109/PAC.1995.505374
