common antenna meaning in English

公用天线
共天线

The design of common antenna only stays at the frequency - domain level . in this paper , basic iterative algorithm , lattice division technology , absorb boundary condition , driving source technology and time - domain / frequency - domain far field extrapolation of the fdtd ( finite - difference time - domain ) method is firstly discussed and the time - domain characteristics of the vivaldi antenna are analyzed by using these algorithms
一般的天线设计过程也仅仅停留在频域范围内,本文首先在讨论fdtd ( finite - differencetime - domain )法的基本迭代算法、网格划分技术、吸收边界条件、激励源技术以及时域/频域远场外推技术的基础上。