굽음손실이 적은 Bulged형 Abrupt Bend 구조의 제안

Proposal of bulged-type abrupt bend structure with low bending loss

Bulged-type bends with low bending loss are newly proposed, and the FD-BPM is made use of for designing optimum structure. How to evaluate bending loss of conventional bends and how to improve the bending structure based on the phase compensation concept are described in genral. Besides simulation results for the bulged-type bends, results for the coupled-type bends and the chamfered-type bends show the most superior performance in terms of not only the bending loss but also the design tolerance.