- 易迪拓培训,专注于微波、射频、天线设计工程师的培养
HFSS15: Wave Equation
录入：edatop.com 点击：
The field pattern of a traveling wave inside a waveguide can be determined by solving Maxwell’s equations. For each mode m, the port solver solves the following equation obtained from Maxwell’s equation.
| 
| (1) |
where
• k0 = w/c 
is the wave number of free-space
• mr(x,y) is the complex relative permeability.
• er(x,y) is the complex relative permittivity.
By solving the equation, the electric field mode pattern Em(x,y) and the propagation constant gm are both obtained for all the modes specified for a given port. For the current based impedance calculations, the port solver also solves independently for Hm(x,y) using a corresponding equation for the magnetic field.
Also note that the excitation field pattern computed by the port solver is valid only at a given frequency. A different excitation field pattern is computed for each frequency point of interest.
