Simulation analysis of the reed structure in a broadband coaxial switch

Abstract This paper conducts a static study on the internal reeds of a broadband coaxial switch. A model of the reed unit is established, and simulation analysis is performed by using the finite element ANSYS-Workbench software to clarify the stress state of the reeds and identify critical stress locations. The results show that the maximum stress in the short reed occurs at the contact area between the reed and the push rod, with a theoretical calculation value of 202.7 MPa and a finite element simulation value of 287.57 MPa. The maximum stress in the long reed occurs at the same location as in the short reed, with a theoretical calculation value of 194.65 MPa and a finite element simulation value of 261.05 MPa. The yield strength of beryllium bronze is 1035 MPa, indicating that neither reed will yield under these conditions.